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1.
  • Arnelo, Urban, et al. (author)
  • Single-operator pancreatoscopy is helpful in the evaluation of suspected intraductal papillary mucinous neoplasms (IPMN)
  • 2014
  • In: Pancreatology (Print). - : Elsevier. - 1424-3903 .- 1424-3911. ; 14:6, s. 510-514
  • Journal article (peer-reviewed)abstract
    • BACKGROUND AND OBJECTIVE: Even when advanced cross-sectional imaging modalities have been employed, endoscopic evaluation of intraductal papillary mucinous neoplasms (IPMN) is often required in order to assess the final character and extent of lesions. The current study addresses the use of SpyGlass single-operator peroral pancreatoscopy in suspected IPMN.DESIGN: A prospective, non-randomized exploratory cohort study.SETTING: Single-center.PATIENTS AND INTERVENTION: A prospective study-cohort of 44 consecutive patients in a single tertiary referral center who underwent ERCP and peroral pancreatoscopy, was prospectively collected between July 2007 and March 2013 because of a radiological signs of IPMN. These IPMN-findings were discovered incidentally in 44% of the cases.MAIN OUTCOME MEASUREMENTS: Diagnostic accuracy (specificity & sensitivity) and complications.RESULTS: The targeted region of the pancreatic duct was reached with the SpyGlass system in 41 patients (median age 65 years, 41% female). Three patients were excluded from analysis because of failed deep cannulation of the pancreatic duct. Brush cytology was taken in 88% and direct biopsies in 41%. IPMN with intermediate or high-grade dysplasia was the main final diagnosis (76%) in 22 patients who had surgery. Out of the 17 patients with a final diagnosis of MD-IPMN, 76% were correctly identified by pancreatoscopy. Of the 9 patients with a final diagnosis of BD-IPMN, the pancreatoscopy identified 78% of the cases correctly.The incidence of post-ERCP pancreatitis was 17%. Pancreatoscopy was found to have provided additional diagnostic information in the vast majority of the cases and to affect clinical decision-making in 76%.LIMITATIONS: Single-center study.CONCLUSIONS: Single-operator peroral pancreatoscopy contributed to the clinical evaluation of IPMN lesions and influenced decision-making concerning their clinical management. The problem of post-procedural pancreatitis needs further attention.
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2.
  • Aronsson, Linus, et al. (author)
  • Does next-generation sequencing of cyst fluid improve management of pancreatic cystic neoplasms?
  • 2017
  • In: Scandinavian Journal of Gastroenterology. - : Informa UK Limited. - 0036-5521 .- 1502-7708. ; 52:10, s. 1049-1051
  • Research review (peer-reviewed)abstract
    • Pancreatic cystic lesions represent a heterogeneous group of diseases ranging from benign to malignant lesions. They are increasingly being detected due to the widespread use of cross-sectional imaging. Their management is a challenge because it is often not possible to reliably discriminate between malignant and nonmalignant lesions using current imaging technology. Next-generation sequencing (NGS) has the ability of both whole genome and targeted sequencing at a low cost and from a limited amount of DNA. NGS of cyst fluid aspired by endoscopic ultrasonography-guided fine-needle aspiration provides a valuable tool in biomarker research and may in the future help improve diagnosis and management of pancreatic cystic lesions.
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3.
  • Bergström, Göran, 1964, et al. (author)
  • Prevalence of Subclinical Coronary Artery Atherosclerosis in the General Population
  • 2021
  • In: Circulation. - Philadelphia : American Heart Association. - 0009-7322 .- 1524-4539. ; 144:12, s. 916-929
  • Journal article (peer-reviewed)abstract
    • Background: Early detection of coronary atherosclerosis using coronary computed tomography angiography (CCTA), in addition to coronary artery calcification (CAC) scoring, may help inform prevention strategies. We used CCTA to determine the prevalence, severity, and characteristics of coronary atherosclerosis and its association with CAC scores in a general population.Methods: We recruited 30 154 randomly invited individuals age 50 to 64 years to SCAPIS (the Swedish Cardiopulmonary Bioimage Study). The study includes individuals without known coronary heart disease (ie, no previous myocardial infarctions or cardiac procedures) and with high-quality results from CCTA and CAC imaging performed using dedicated dual-source CT scanners. Noncontrast images were scored for CAC. CCTA images were visually read and scored for coronary atherosclerosis per segment (defined as no atherosclerosis, 1% to 49% stenosis, or ≥50% stenosis). External validity of prevalence estimates was evaluated using inverse probability for participation weighting and Swedish register data.Results: In total, 25 182 individuals without known coronary heart disease were included (50.6% women). Any CCTA-detected atherosclerosis was found in 42.1%; any significant stenosis (≥50%) in 5.2%; left main, proximal left anterior descending artery, or 3-vessel disease in 1.9%; and any noncalcified plaques in 8.3% of this population. Onset of atherosclerosis was delayed on average by 10 years in women. Atherosclerosis was more prevalent in older individuals and predominantly found in the proximal left anterior descending artery. Prevalence of CCTA-detected atherosclerosis increased with increasing CAC scores. Among those with a CAC score >400, all had atherosclerosis and 45.7% had significant stenosis. In those with 0 CAC, 5.5% had atherosclerosis and 0.4% had significant stenosis. In participants with 0 CAC and intermediate 10-year risk of atherosclerotic cardiovascular disease according to the pooled cohort equation, 9.2% had CCTA-verified atherosclerosis. Prevalence estimates had excellent external validity and changed marginally when adjusted to the age-matched Swedish background population.Conclusions: Using CCTA in a large, random sample of the general population without established disease, we showed that silent coronary atherosclerosis is common in this population. High CAC scores convey a significant probability of substantial stenosis, and 0 CAC does not exclude atherosclerosis, particularly in those at higher baseline risk.
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4.
  • Bergström, Göran, et al. (author)
  • Prevalence of Subclinical Coronary Artery Atherosclerosis in the General Population
  • 2021
  • In: Circulation. - : Wolters Kluwer. - 0009-7322 .- 1524-4539. ; 144:12, s. 916-929
  • Journal article (peer-reviewed)abstract
    • Background: Early detection of coronary atherosclerosis using coronary computed tomography angiography (CCTA), in addition to coronary artery calcification (CAC) scoring, may help inform prevention strategies. We used CCTA to determine the prevalence, severity, and characteristics of coronary atherosclerosis and its association with CAC scores in a general population.Methods: We recruited 30 154 randomly invited individuals age 50 to 64 years to SCAPIS (the Swedish Cardiopulmonary Bioimage Study). The study includes individuals without known coronary heart disease (ie, no previous myocardial infarctions or cardiac procedures) and with high-quality results from CCTA and CAC imaging performed using dedicated dual-source CT scanners. Noncontrast images were scored for CAC. CCTA images were visually read and scored for coronary atherosclerosis per segment (defined as no atherosclerosis, 1% to 49% stenosis, or ≥50% stenosis). External validity of prevalence estimates was evaluated using inverse probability for participation weighting and Swedish register data.Results: In total, 25 182 individuals without known coronary heart disease were included (50.6% women). Any CCTA-detected atherosclerosis was found in 42.1%; any significant stenosis (≥50%) in 5.2%; left main, proximal left anterior descending artery, or 3-vessel disease in 1.9%; and any noncalcified plaques in 8.3% of this population. Onset of atherosclerosis was delayed on average by 10 years in women. Atherosclerosis was more prevalent in older individuals and predominantly found in the proximal left anterior descending artery. Prevalence of CCTA-detected atherosclerosis increased with increasing CAC scores. Among those with a CAC score >400, all had atherosclerosis and 45.7% had significant stenosis. In those with 0 CAC, 5.5% had atherosclerosis and 0.4% had significant stenosis. In participants with 0 CAC and intermediate 10-year risk of atherosclerotic cardiovascular disease according to the pooled cohort equation, 9.2% had CCTA-verified atherosclerosis. Prevalence estimates had excellent external validity and changed marginally when adjusted to the age-matched Swedish background population.Conclusions: Using CCTA in a large, random sample of the general population without established disease, we showed that silent coronary atherosclerosis is common in this population. High CAC scores convey a significant probability of substantial stenosis, and 0 CAC does not exclude atherosclerosis, particularly in those at higher baseline risk.
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5.
  • Beygui, Farzin, et al. (author)
  • Gestione pre-ospedaliera dei pazienti con dolore toracico e/o dispnea di origine cardiaca[Pre-hospital management of patients with chest pain and/or dyspnoea of cardiac origin]
  • 2017
  • In: Recenti progressi in medicina. - : Il Pensiero Scientifico Editore. - 2038-1840. ; 108:1, s. 27-51
  • Journal article (peer-reviewed)abstract
    • Chest pain and acute dyspnoea are frequent causes of emergency medical services activation. The pre-hospital management of these conditions is heterogeneous across different regions of the world and Europe, as a consequence of the variety of emergency medical services and absence of specific practical guidelines. This position paper focuses on the practical aspects of the pre-hospital treatment on board and transfer of patients taken in charge by emergency medical services for chest pain and dyspnoea of suspected cardiac aetiology after the initial assessment and diagnostic work-up. The objective of the paper is to provide guidance, based on evidence, where available, or on experts' opinions, for all emergency medical services' health providers involved in the pre-hospital management of acute cardiovascular care.
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6.
  • D'souza, Melroy A., et al. (author)
  • The clinicopathological spectrum and management of intraductal papillary mucinous neoplasm of the bile duct (IPMN-B)
  • 2013
  • In: Scandinavian Journal of Gastroenterology. - : Informa Healthcare. - 0036-5521 .- 1502-7708. ; 48:4, s. 473-479
  • Journal article (peer-reviewed)abstract
    • BACKGROUND: Intraductal papillary mucinous neoplasm of the bile duct (IPMN-B) is a rare but increasingly diagnosed clinical entity. Typical cholangioscopic findings usually include intraductal protruding papillary tumors that secrete mucus.METHODS: Clinical, radiological and histopathological data of seven consecutive patients who were found to have IPMN-B were analyzed.RESULTS: Six of the seven patients presented with obstructive jaundice/cholangitis as the presenting complaint. ERCP and other imaging were equivocal in five of these patients and peroral cholangioscopy (POCS, single-operator cholangioscopy system) was performed. This revealed mucin-producing intraductal tumors with numerous frond-like papillary projections; a macroscopic appearance consistent with IPMN-B. Preoperative biopsy revealed adenoma, with low-grade dysplasia in two patients and high-grade dysplasia in three. Three patients underwent Whipple resection; one underwent total pancreatectomy with left hepatectomy, one patient a pancreas preserving duodenectomy with common bile duct reimplantation and one patient an extended right hepatectomy. These patients were found to have IPMN-B with adenomatous changes with varying grades of dysplasia and even cholangiocarcinoma on final histopathology. One patient first underwent endoscopic papillectomy and on follow-up was found to have cholangiocarcinoma with metastases to the liver.CONCLUSION: POCS can be a key diagnostic investigation in the evaluation of patients with papillary tumors of the bile duct. IPMN-B has a heterogenous pathology and varying grades of dysplasia and even carcinoma may exist in the same patient. Surgical management should be radical and based on tumor extent.
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8.
  • Forsberg, Anton, et al. (author)
  • Low background and high contrast PET imaging of amyloid-β with [11C]AZD2995 and [11C]AZD2184 in Alzheimer's disease patients
  • 2013
  • In: European Journal of Nuclear Medicine and Molecular Imaging. - : Springer-Verlag New York. - 1619-7070 .- 1619-7089. ; 40:4, s. 580-593
  • Journal article (peer-reviewed)abstract
    • PURPOSE: The aim of this study was to evaluate AZD2995 side by side with AZD2184 as novel PET radioligands for imaging of amyloid-β in Alzheimer's disease (AD).METHODS: In vitro binding of tritium-labelled AZD2995 and AZD2184 was studied and compared with that of the established amyloid-β PET radioligand PIB. Subsequently, a first-in-human in vivo PET study was performed using [(11)C]AZD2995 and [(11)C]AZD2184 in three healthy control subjects and seven AD patients.RESULTS: AZD2995, AZD2184 and PIB were found to share the same binding site to amyloid-β. [(3)H]AZD2995 had the highest signal-to-background ratio in brain tissue from patients with AD as well as in transgenic mice. However, [(11)C]AZD2184 had superior imaging properties in PET, as shown by larger effect sizes comparing binding potential values in cortical regions of AD patients and healthy controls. Nevertheless, probably due to a lower amount of nonspecific binding, the group separation of the distribution volume ratio values of [(11)C]AZD2995 was greater in areas with lower amyloid-β load, e.g. the hippocampus.CONCLUSION: Both AZD2995 and AZD2184 detect amyloid-β with high affinity and specificity and also display a lower degree of nonspecific binding than that reported for PIB. Overall [(11)C]AZD2184 seems to be an amyloid-β radioligand with higher uptake and better group separation when compared to [(11)C]AZD2995. However, the very low nonspecific binding of [(11)C]AZD2995 makes this radioligand potentially interesting as a tool to study minute levels of amyloid-β. This sensitivity may be important in investigating, for example, early prodromal stages of AD or in the longitudinal study of a disease modifying therapy.
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9.
  • Halttunen, Jorma, et al. (author)
  • Difficult cannulation as defined by a prospective study of the Scandinavian Association for Digestive Endoscopy (SADE) in 907 ERCPs
  • 2014
  • In: Scandinavian Journal of Gastroenterology. - : Informa UK Limited. - 1502-7708 .- 0036-5521. ; 49:6, s. 752-758
  • Journal article (peer-reviewed)abstract
    • Background. The definition of a "difficult" cannulation varies considerably in reports of endoscopic retrograde cholangiopancreatography (ERCP). Aims. To define a difficult cannulation, which translates into higher risk of post-ERCP pancreatitis. Patients and methods. Prospective consecutive recording of 907 cannulations in Scandinavian centers done by experienced endoscopists. Inclusion: indication for biliary access in patients with intact papilla. Exclusion: acute non-biliary and chronic pancreatitis at time of procedure. Results. The primary cannulation succeeded in 74.9%, with median values for time 0.88 min (53 s), with two attempts and with zero pancreatic passages or injections. The overall cannulation success was 97.4% and post-ERCP pancreatitis (PEP) rate was 5.3%. The median time for all successful cannulations was 1.55 min (range 0.02-94.2). If the primary cannulation succeeded, the pancreatitis rate was 2.8%; after secondary methods, it rose to 11.5%. Procedures lasting less than 5 min had a PEP rate of 2.6% versus 11.8% in those lasting longer. With one attempt, the PEP rate was 0.6%, with two 3.1%, with three to four 6.1%, and with five and more 11.9%. With one accidental pancreatic guide-wire passage, the risk of the PEP was 3.7%, and with two passages, it was 13.1%. Conclusions. If the increasing rate of PEP is taken as defining factor, the wire-guided cannulation of a native papilla can be considered difficult after 5 min, five attempts, and two pancreatic guide-wire passages when any of those limits is exceeded.
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10.
  • Hammaréus, Filip, et al. (author)
  • Wall shear stress measured with 4D flow CMR correlates with biomarkers of inflammation and collagen synthesis in mild-to-moderate ascending aortic dilation and tricuspid aortic valves
  • 2024
  • In: European Heart Journal Cardiovascular Imaging. - : OXFORD UNIV PRESS. - 2047-2404 .- 2047-2412.
  • Journal article (peer-reviewed)abstract
    • Aims Understanding the mechanisms underlying ascending aortic dilation is imperative for refined risk stratification of these patients, particularly among incidentally identified patients, most commonly presenting with tricuspid valves. The aim of this study was to explore associations between ascending aortic haemodynamics, assessed using four-dimensional flow cardiovascular magnetic resonance imaging (4D flow CMR), and circulating biomarkers in aortic dilation. Methods and results Forty-seven cases with aortic dilation (diameter >= 40 mm) and 50 sex-and age-matched controls (diameter < 40 mm), all with tricuspid aortic valves, underwent 4D flow CMR and venous blood sampling. Associations between flow displacement, wall shear stress (WSS), and oscillatory shear index in the ascending aorta derived from 4D flow CMR, and biomarkers including interleukin-6, collagen type I alpha 1 chain, metalloproteinases (MMPs), and inhibitors of MMPs derived from blood plasma, were investigated. Cases with dilation exhibited lower peak systolic WSS, higher flow displacement, and higher mean oscillatory shear index compared with controls without dilation. No significant differences in biomarkers were observed between the groups. Correlations between haemodynamics and biomarkers were observed, particularly between maximum time-averaged WSS and interleukin-6 (r = 0.539, P < 0.001), and maximum oscillatory shear index and collagen type I alpha 1 chain (r = -0.575, P < 0.001 in cases). Conclusion Significant associations were discovered between 4D flow CMR derived whole-cardiac cycle WSS and circulating biomarkers representing inflammation and collagen synthesis, suggesting an intricate interplay between haemodynamics and the processes of inflammation and collagen synthesis in patients with early aortic dilation and tricuspid aortic valves.
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11.
  • Haraldsson, Erik, et al. (author)
  • Endoscopic papillectomy and KRAS expression in the treatment of adenoma in the major duodenal papilla
  • 2015
  • In: Scandinavian Journal of Gastroenterology. - : Informa UK Limited. - 0036-5521 .- 1502-7708. ; 50:11, s. 1419-1427
  • Journal article (peer-reviewed)abstract
    • Objective. The use of endoscopic papillectomy for resecting adenomas in the major duodenal papilla is increasing. This study focuses on the following three issues: Can endoscopic papillectomy be performed as a safe diagnostic and/or therapeutic procedure in biopsy-verified or suspected ampullary adenoma? Does expression of mutated KRAS in resected adenomatous tissue predict long-term outcome? What other factors may affect long-term outcome and should, therefore, be considered in decision making prior to endoscopic papillectomy? Material and methods. Thirty-six prospectively collected patients who underwent endoscopic papillectomy at Karolinska University Hospital between 2005 and 2014 were analyzed. Results. The rate of exact agreement between the histomorphological grading of the endoscopic biopsies and the papillectomy specimens was low (48%). Obstructive jaundice at presentation increased the risk of undetected adenocarcinoma (RR = 3.98; 95% CI = 1.46-10.85, p = 0.007). Lesions with malignancies were significantly larger (mean 30.6 mm) than those where only adenomas were found (mean 14.4 mm, p = 0.001). Mutated KRAS was detected in 9 of the 36 post-papillectomy specimens, including 4 of the 5 cases of ampullary adenocarcinoma. Eighteen cases were endoscopically cured after a mean follow-up period of 47 months (range 16-92 months). Conclusions. Endoscopic papillectomy is a valuable staging tool because of the limitations of endoscopic biopsy. Endoscopic papillectomy concomitantly offers a curative treatment for most patients with adenoma in the major duodenal papilla. Jaundice at presentation and large adenomas may indicate the presence of more advanced disease. Determination of mutated KRAS seems to be of limited value in predicting long-term outcome.
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  • Johansson, Martina, et al. (author)
  • Relationships between cardiovascular risk factors and white-coat hypertension diagnosed by home blood pressure recordings in a middle-aged population
  • 2021
  • In: Journal of Hypertension. - : Lippincott Williams & Wilkins. - 0263-6352 .- 1473-5598. ; 39:10, s. 2009-2014
  • Journal article (peer-reviewed)abstract
    • Objective: To study risk in white-coat hypertension (WCH) by measurement of coronary artery calcium score (CACS), carotid--femoral pulse-wave velocity (PWV) and carotid plaques. Methods: Cross-sectional population-based cohort with randomized selection of participants from Linkoping, Sweden. An Omron m10-IT oscillometric device was used for clinic and home blood pressures (HBP) in the morning and evening for 1 week. Results: We recruited 5029 middle-aged and mainly defined WCH as SBP at least 140 mmHg and/or DBP at least 90 mmHg with HBP less than 135/85 mmHg. There were 2680 normotensive participants and 648 had WCH after exclusion of treated participants. More women (59.5%) than men (42.8%, P < 0.001) had WCH. We found higher prevalence of CACS greater than 100 compared with less than 100 (12.4 vs. 7.2%, P < 0.001), PWV (11.5 +/- 1.5 vs. 10.4 +/- 1.3 m/s, P < 0.001) and a higher prevalence of one or more carotid plaques (59.5 vs. 48%, P < 0.001) in participants with WCH than in normotension. Participants with WCH also had more dyslipidemia and higher glucose levels. Normotensive women scored lower on nervousness than women with WCH (P = 0.022). After matching of 639 participants with WCH to normotensive participants according to age, gender and systolic HBP the prevalence of a high CACS (12.1 vs. 8.6%, P = 0.003,) PWV (11.0 +/- 0.068 vs. 11.5 +/- 0.068 m/s, estimated marginal means +/- SE, P < 0.001 by ANOVA) but not more carotid plaques (59.5 vs. 55.6%, P = 0.23), remained in the participants with WCH compared with the matched normotensive participants. Conclusion: WCH is particularly common in middle-aged women, and it displays metabolic dysfunction and increased prevalence of arteriosclerotic manifestations in both genders. As markers of increased cardiovascular risk were present also after matching normotensive and WCH participants according to systolic HBP, age and gender, the presence of WCH signals an increased cardiovascular risk burden that is not fully explained by elevated BP levels at home.
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15.
  • Lagerqvist, Bo, 1952-, et al. (author)
  • 5-year outcomes in the FRISC-II randomised trial of an invasive versus a non-invasive strategy in non-ST-elevation acute coronary syndrome : a follow-up study
  • 2006
  • In: The Lancet. - 0140-6736 .- 1474-547X. ; 368:9540, s. 998-1004
  • Journal article (peer-reviewed)abstract
    • BACKGROUND: The FRISC-II invasive trial compared an early invasive with a non-invasive strategy in terms of death and myocardial infarction in non-ST-elevation acute coronary syndrome. We present 5-year follow-up results, overall and in subgroups based on recommended risk stratification criteria. METHODS: In the FRISC-II trial, 2457 patients with non-ST-elevation acute coronary syndrome were randomised to early invasive strategy (coronary angiography and, if appropriate, revascularisation, within 7 days from admission) or non-invasive primarily medical strategy. Risk stratification was done on the basis of risk indicators at randomisation: age older than 65 years, male sex, diabetes mellitus, previous myocardial infarction, ST-segment depression, raised troponin concentration (>0.03 mug/L), and raised C-reactive protein or interleukin 6. Information on events after 24 months was taken from national registries. Analyses were done on an intention-to-treat basis. FINDINGS: At 5 years the groups differed in terms of the primary composite endpoint of death, myocardial infarction, or both (invasive 217, 19.9 %; noninvasive 270, 24.5 %; risk ratio 0.81; 95% CI 0.69-0.95; p=0.009). 5-year mortality was 117 (9.7%) in the invasive group compared with 124 (10.1%) in the noninvasive group (0.95; 0.75 -1.21; p=0.693). Rates of myocardial infarction were 141 (12.9 %) in the invasive and 195 (17.7%) in the non-invasive group (0.73; 0.60-0.89; p=0.002). The benefit of the invasive strategy was confined to male patients, non-smokers, and patients with two or more risk indicators. INTERPRETATION: The 5-year outcome of this trial indicates sustained benefit of an early invasive strategy in patients with non-ST-elevation acute coronary syndrome at moderate to high risk.
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  • Lohr, J-Matthias, et al. (author)
  • How to cannulate? A survey of the Scandinavian Association for Digestive Endoscopy (SADE) in 141 endoscopists
  • 2012
  • In: Scandinavian Journal of Gastroenterology. - : Informa UK Limited. - 1502-7708 .- 0036-5521. ; 47:7, s. 861-869
  • Journal article (peer-reviewed)abstract
    • Cannulation of the papilla vateri represents an enigmatic first step in endoscopic retrograde cholangiopancreaticography (ERCP). In light of falling numbers of (diagnostic) ERCP and novel techniques, e. g. short-wire system, we were interested in the approach novice and experienced endoscopist are taking; especially, what makes a papilla difficult to cannulate and how to approach this. We devised a structured online questionnaire, sent to all endoscopists registered with SADE, the Scandinavian Association for Digestive Endoscopy. A total of 141 responded. Of those, 49 were experienced ERCP-endoscopists (>900 ERCPs). The first choice of cannulation is with a sphincterotome and a preinserted wire. Both less experienced and more experienced endoscopists agreed on the criteria to describe a papilla difficult to cannulate and both would choose the needle-knife sphincterotomy (NKS) to get access to the bile duct. The less experienced used more "upward" NKS, whereas the more experienced also used the "downward" NKS technique. This survey provides us with a database allowing now for a more differentiated view on cannulation techniques, success, and outcome in terms of pancreatitis.
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  • Lübbe, Jeanne, et al. (author)
  • ERCP-guided cholangioscopy using a single-use system : nationwide register-based study of its use in clinical practice
  • 2015
  • In: Endoscopy. - : Georg Thieme Verlag KG. - 0013-726X .- 1438-8812. ; 47:9, s. 802-807
  • Journal article (peer-reviewed)abstract
    • BACKGROUND AND STUDY AIMS: Single-operator peroral cholangioscopy enables direct visualization of duct lesions, biopsy, and therapeutic interventions in the biliary and pancreatic ductal systems. The aim of this study was to address the use and outcome of this technology in wider clinical practice.PATIENTS AND METHODS: A nationwide study of endoscopic retrograde cholangiopancreatography (ERCP) procedures, with or without cholangioscopy, was conducted. Procedures that were registered in the Swedish Registry for Gallstone Surgery and ERCP (GallRiks), between 2007 and 2012 were included. The primary outcome was ERCP-specific adverse events.RESULTS: Data from 36 352 ERCP procedures were analyzed, including 408 cholangioscopy procedures. Postprocedural adverse events were more prevalent when cholangioscopy was used (19.1 % vs. 14.0 %). Pancreatitis (7.4 % vs. 3.9 %) and cholangitis (4.4 % vs. 2.7 %) were ERCP-specific adverse events that were elevated in the cholangioscopy group. However, in multivariate analysis, the risks of intraprocedural and postprocedural adverse events were significantly increased in the cholangioscopy group whereas the risks of pancreatitis and cholangitis, when adjusted for confounders, were not.CONCLUSION: The single-operator peroral cholangioscopy technique is an advanced technique for intraluminal visual inspection, and for therapeutic intervention of the biliary and pancreatic ducts. However, there is a significantly increased risk of intra- and postprocedural adverse events. Thus, this method should preferably be performed at tertiary referral centers in carefully selected patients.
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  • Löhr, Johannes-Matthias, et al. (author)
  • Outcome of probe-based confocal laser endomicroscopy (pCLE) during endoscopic retrograde cholangiopancreatography : a single-center prospective study in 45 patients.
  • 2015
  • In: United European Gastroenterology journal. - : Wiley. - 2050-6406 .- 2050-6414. ; 3:6, s. 551-560
  • Journal article (peer-reviewed)abstract
    • BACKGROUND: Diagnosis of pre-malignant and malignant lesions in the bile duct and the pancreas is sometimes cumbersome. This applies in particular to intraductal papillary mucinous neoplasia (IPMN) and bile duct strictures in primary sclerosing cholangitis (PSC).AIMS: To evaluate in a prospective cohort study the sensitivity and specificity of probe-based confocal laser microscopy (pCLE) during endoscopic retrograde cholangiopancreatography (ERCP).METHODS: We performed pCLE together with mother-baby endoscopy (SpyGlass) during 50 ERCP sessions in 45 patients. The Miami and Paris criteria were applied. Clinical diagnosis via imaging was compared to pCLE and the final pathological diagnosis from surgically-resected, biopsy, or cytology specimens. Patients were followed up for at least 1 year.RESULTS: We were able to perform pCLE in all patients. Prior to endoscopy, the diagnosis was benign in 23 patients and undetermined (suspicious) in 16 patients, while six patients had an unequivocal diagnosis of malignancy. Sensitivity was 91% and specificity 52%. The positive (PPV) and negative predictive value (NPV) was 82% and 100%, respectively. Apart from mild post-ERCP pancreatitis in two patients, no complications occurred.CONCLUSIONS: Our study showed that pCLE is a safe, expert endoscopic method with high technical feasibility, high sensitivity and high NPV. It provided diagnostic information that can be helpful for decisions on patient management, especially in the case of IPMN and unclear pancreatic lesions, in individuals whom are at increased risk for pancreatic cancer.
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  • Noel, Rozh, et al. (author)
  • A 10-year study of rendezvous intraoperative endoscopic retrograde cholangiography during cholecystectomy and the risk of post-ERCP pancreatitis
  • 2013
  • In: Surgical Endoscopy. - : Springer. - 0930-2794 .- 1432-2218. ; 27:7, s. 2498-2503
  • Journal article (peer-reviewed)abstract
    • BACKGROUND: Rendezvous intraoperative endoscopic retrograde cholangiography (RV-IOERC), also called guidewire-facilitated IOERC, is one of the single-stage options available for managing common bile duct stones (CBDS) during laparoscopic cholecystectomy. The objective of this study is to investigate procedure-related complications in IOERC patients and stone clearance.METHODS: All patients who underwent IOERC between January 2000 and December 2009 were identified from the local registry of Karolinska University Hospital in Huddinge. Medical charts and ERC reports were studied, and descriptive statistics were obtained. Outcomes were procedure-related complications, especially post-ERCP pancreatitis (PEP), stone clearance, and mortality.RESULTS: 307 patients were identified. In 264 of the patients, the rendezvous cannulation technique was successful (86 %); in the remaining 43 patients, conventional cannulation technique was necessary. In total, PEP occurred in seven patients (2.28 %). One of the PEP patients was in the rendezvous cannulated group (0.37 %), whereas six patients developed PEP in the nonrendezvous group (13.95 %, p < 0.001). The primary stone clearance rate was 88.27 % (271/307). There was no mortality within 90 days in the series.CONCLUSIONS: IOERC with RV cannulation technique for management of CBDS during laparoscopic cholecystectomy has a low PEP rate and a high stone clearance rate, making it a safe and feasible method for removing CBDS. However, the technique requires logistics to perform IOERC in the operating theater. The present data suggest that IOERC with RV cannulation is superior to conventional cannulation with respect to risk of PEP.
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21.
  • Noel, Rozh, et al. (author)
  • Intraoperative versus postoperative rendezvous endoscopic retrograde cholangiopancreatography to treat common bile duct stones during cholecystectomy
  • 2019
  • In: Digestive Endoscopy. - : Wiley. - 0915-5635 .- 1443-1661. ; 31:1, s. 69-76
  • Journal article (peer-reviewed)abstract
    • Background and Aim: The rendezvous postoperative endoscopic retrograde cholangiopancreatography (ERCP) technique has been introduced as a modification of the single-session rendezvous intraoperative ERCP procedure in the management of concurrent common bile duct stones during cholecystectomy. There are no reports on the impact of this modified technique on post-ERCP morbidity. The objective of the present study was to study and compare the rendezvous techniques in terms of procedure-associated morbidities, such as post-ERCP pancreatitis and postoperative infections. Methods: The Swedish National Registry for Gallstone Disease and ERCP was searched for ERCP procedures cross-matched with cholecystectomies for the same patient carried out for gallstone indications between 2008 and 2014. A total of 1770 rendezvous ERCP procedures were retrieved and included in this study. The ERCP procedures were considered rendezvous intraoperative or rendezvous postoperative, depending on whether the ERCP procedure was carried out during or after completing the cholecystectomy. Results: There were 1205 and 565 ERCP procedures in the rendezvous intraoperative and the rendezvous postoperative groups, respectively. The cohorts were similar in age and gender distribution. Overall complication rates were higher in the rendezvous postoperative group compared with the rendezvous intraoperative group (19.7% vs 14%, P = 0.004), involving specifically post-ERCP pancreatitis (6.4% vs 3.2% P = 0.003) and postoperative infections (4.4% vs 2.3% P = 0.028). Despite similar stone clearance rates, there were higher rates of retained stones in the rendezvous postoperative group (5.5% vs 0.6%, P < 0.001). Conclusions: Single-session rendezvous intraoperative ERCP is superior to the rendezvous postoperative ERCP technique in terms of post-ERCP pancreatitis and postoperative infections.
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22.
  • Ohlsson, Bodil, et al. (author)
  • Endoscopic full-thickness biopsy, a novel method in the work up of complicated abdominal symptoms
  • 2018
  • In: Therapeutic Advances in Gastroenterology. - 1756-283X. ; 11, s. 1-4
  • Journal article (peer-reviewed)abstract
    • Gastrointestinal complaints without obvious organic causes confirmed by clinical laboratory analyses, endoscopy or radiology are often referred to functional entities. Irritable bowel syndrome (IBS) is the most common functional disorder in the gut. Careful examination of these patients may reveal other diagnoses of defined etiologies, e.g., enteric neuropathy, microscopic colitis, and primary Sjögre’s syndrome. The present case describes a young patient with incapacitating gastrointestinal symptoms presumed to be IBS, who underwent endoscopic full-thickness biopsy in sigmoid colon. Histopathological examination revealed degenerative enteric neuropathy, possibly secondary to chronic ischemia.
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23.
  • Olsson, Greger, et al. (author)
  • Antibiotic prophylaxis in ERCP with failed cannulation
  • 2021
  • In: Scandinavian Journal of Gastroenterology. - : Taylor & Francis. - 0036-5521 .- 1502-7708. ; 56:3, s. 336-341
  • Journal article (peer-reviewed)abstract
    • Objectives: Endoscopic retrograde cholangiopancreatography (ERCP) with failed biliary cannulation is associated with a high rate of adverse events, but the role of prophylactic antibiotics remains unclear. The primary aim was to investigate if prophylactically administered antibiotics affect the frequency of overall adverse complications in patients where biliary cannulation fails during ERCP. The secondary aim was to investigate if specific infectious complications, also were affected by the antibiotic prophylaxis.Materials and methods: We analysed data from 96,818 ERCPs (2006–2018), from the Swedish National Quality Registry of Cholecystectomy and ERCP (GallRiks), excluding ERCPs with successful cannulation (n = 88,743), missing data (n = 2,014), or on-going antibiotic therapy (n = 1,062).Results: In total 4,996 procedures were included, 2,124 received (42.5%) and 2,872 (57.5%) did not receive antibiotic prophylaxis. There were fewer overall complications in the group receiving prophylaxis (13.6% vs. 17.1%, p < .001), which corresponded to a 24% adjusted odds reduction in the multivariable analysis (odds ratio [OR] 0.76; 95% confidence interval [CI] 0.65–0.89). In the prophylaxis group, there was a lower overall rate of infectious complications (2.1% vs. 3.2%; p = .038; OR 0.68; 95% CI 0.47–0.98) and abscesses (0.8% vs. 1.4%; p = .040; OR 0.54; 95% CI 0.31–0.96). However, no significant differences were seen in the rate of cholangitis (1.3% vs. 1.7%; p = .182; OR 0.74; 95% CI 0.46–1.18).Conclusion: This national quality registry study of ERCPs with failed cannulation showed a significant reduction in overall and infectious complications when prophylactic antibiotics were administered.
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24.
  • Olsson, Greger, et al. (author)
  • The H.O.U.S.E. classification : a novel endoscopic retrograde cholangiopancreatography (ERCP) complexity grading scale
  • 2017
  • In: BMC Gastroenterology. - : BioMed Central. - 1471-230X. ; 17
  • Journal article (peer-reviewed)abstract
    • BACKGROUND: Endoscopic retrograde cholangiopancreatography (ERCP) is a technically challenging endoscopic procedure, harboring a wide range of complexities within every single investigation. Classifications of the complexity of ERCP have been presented, but do not include modern endoscopic treatment modalities. In order to be able to target resources and compare the results of different endoscopic centers, a new complexity grading system for ERCP is warranted. This study launches a new complexity grading scale for ERCP-the H.O.U.S.E.-classification.METHODS: The medical record of every patient undergoing ERCP 2009-2011 at the Karolinska University Hospital was reviewed, regarding the complexity of the procedure, and categorized into one out of three-grades in the HOUSE classification system, and concomitantly graded according to the Cotton grading system. All ERCP-procedures were also registered in the Swedish registry for gallstone surgery and ERCP (GallRiks) and correlations between the grading systems and procedure related variables as well as outcomes were made.RESULTS: Between 2009 and 2011, 2185 ERCPs were performed at the Karolinska University Hospital, Huddinge. One thousand nine hundred fifty-four of those were index-ERCPs. Another 23 patients were excluded due to lack of postoperative complication registrations, leaving 1931 ERCP procedures to be analyzed. The procedure times were 40 ± 0.7, 65 ± 1.5 and 106 ± 3.2 min, respectively (HOUSE 1-3). The corresponding pancreatitis rates were 3.4, 7.0 and 6.8% and the postoperative complication rates 11.1, 15.7 and 12.8%, respectively.CONCLUSIONS: The HOUSE-classification is a novel grading scale for ERCP-complexity. The system can be implemented in clinical practice to allocate resources and allow the comparisons of results between different endoscopic centers. Further studies are warranted to further sharpen this instruments validitity and general clinical relevance.
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25.
  • Pesonen, Ida, et al. (author)
  • High prevalence of interstitial lung abnormalities in middle-aged never-smokers
  • 2023
  • In: ERJ Open Research. - : European Respiratory Society. - 2312-0541. ; 9:5
  • Journal article (peer-reviewed)abstract
    • BACKGROUND: Interstitial lung abnormalities (ILA) are incidental findings on chest computed tomography (CT). These patterns can present at an early stage of fibrotic lung disease. Our aim was to estimate the prevalence of ILA in the Swedish population, in particular in never-smokers, and find out its association with demographics, comorbidities and symptoms.METHODS: Participants were recruited to the Swedish CArdioPulmonary BioImage Study (SCAPIS), a population-based survey including men and women aged 50-64 years performed at six university hospitals in Sweden. CT scan, spirometry and questionnaires were performed. ILA were defined as cysts, ground-glass opacities, reticular abnormality, bronchiectasis and honeycombing.FINDINGS: Out of 29 521 participants, 14 487 were never-smokers and 14 380 were men. In the whole population, 2870 (9.7%) had ILA of which 134 (0.5%) were fibrotic. In never-smokers, the prevalence was 7.9% of which 0.3% were fibrotic. In the whole population, age, smoking history, chronic bronchitis, cancer, coronary artery calcium score and high-sensitive C-reactive protein were associated with ILA. Both ILA and fibrotic ILA were associated with restrictive spirometric pattern and impaired diffusing capacity of the lung for carbon monoxide. However, individuals with ILA did not report more symptoms compared with individuals without ILA.INTERPRETATION: ILA are common in a middle-aged Swedish population including never-smokers. ILA may be at risk of being underdiagnosed among never-smokers since they are not a target for screening.
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26.
  • Sundström, Johan, Professor, 1971-, et al. (author)
  • Weight gain and blood pressure
  • 2020
  • In: Journal of Hypertension. - : Lippincott Williams & Wilkins. - 0263-6352 .- 1473-5598. ; 38:3, s. 387-394
  • Journal article (peer-reviewed)abstract
    • OBJECTIVE: Although the causality of the obesity—hypertension association is established, the potential for prevention is not. We hypothesized that weight gain between early adulthood and mid-life is associated with higher mid-life blood pressure.METHODS: We investigated the hypothesis using a large contemporaneous population-based mid-life cohort of men and women aged 50-64 years. Recalled body weight at age 20 years was self-reported, and mid-life body weight and office blood pressures were measured in accordance with a detailed protocol.RESULTS: On average, men had gained 14.9 (95% CI 14.6-15.2) kg of weight, and women 14.6 (95% CI 14.4-14.9) kg, between age 20 years and the mid-life examination, corresponding to 0.40 (95% CI 0.39-0.41) kg/year for men and women. Both weight at age 20 years and weight at the mid-life examination were associated with mid-life blood pressures. On average, a 10 kg weight increase between age 20 years and mid-life was associated with 2.2 (95% CI 0.9-3.5) mmHg higher systolic and 1.7 (95% CI 0.9-2.5) mmHg higher diastolic mid-life blood pressure in men, and 3.2 (2.5-4.0) mmHg higher systolic and 2.4 (1.9-2.9) mmHg higher diastolic mid-life blood pressure in women. Mid-life weight was more closely associated than weight at age 20 years with mid-life blood pressure. For a given mid-life weight, blood pressure was higher in persons with higher weight gain from age 20 years.CONCLUSION: In sum, weight gain between early adulthood and mid-life was associated with higher mid-life blood pressure. The magnitude of the association indicates a potentially great public health impact of strategies to prevent weight gain throughout adulthood.
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27.
  • Swahn, Eva, 1949-, et al. (author)
  • Prevalence and determinants of dilated ascending aorta in a Swedish population: a case-control study
  • 2023
  • In: European Heart Journal Open. - : Oxford University Press. - 2752-4191. ; 3:5
  • Journal article (peer-reviewed)abstract
    • Aims: Dilation of the ascending aorta (AA) is often asymptomatic until a life-threatening dissection or rupture occurs. An overall increase in the use of thoracic imaging has enabled early and sometimes incidental identification of AA dilation. Still, the prevalence and determinants of AA dilation remain to be clarified. The aim was to identify and characterize persons with AA dilation in a middle-aged Swedish population.Methods and results: We used the Swedish CardioPulmonary BioImage Study Linköping (n = 5058, age 50-65 years) to identify cases with AA diameter ≥ 40 mm on coronary computed tomography angiography (CCTA) or chest computed tomography. Age- and gender-matched individuals with AA diameter < 40 mm served as controls. Echocardiography, blood pressure (BP) measurements (office and home), pulse wave velocity (PWV), coronary artery calcification (CAC), CCTA-detected coronary atherosclerosis, and carotid ultrasound were used to characterize these subjects. We identified 70 cases (mean AA diameter 44 mm, 77% men) and matched these to 146 controls (mean AA diameter 34 mm). Bicuspid aortic valve and aortic valve dysfunction were more common in cases than in controls (8% vs. 0% and 39% vs. 11%, respectively). Both office and home BP levels were significantly higher among cases. Also, high PWV (>10 m/s) levels were more common in cases (33% vs. 17%). Neither CAC scores nor prevalence or burden of atherosclerosis in coronary and carotid arteries differed between groups.Conclusion: The prevalence of dilated AA was 1.4% and showed positive associations with male gender, aortic valve pathology, and diastolic BP, though not with subclinical atherosclerosis.
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28.
  • Swahn, Fredrik (author)
  • Aspects of interventional endoscopic treatment of common bile duct stones
  • 2012
  • Doctoral thesis (other academic/artistic)abstract
    • Background: During the last 30 years, important changes have been introduced in the management of common bile duct stones (CBDS) which can be detected in about 10% of patients undergoing cholecystectomy because of symptomatic gallstone disease. Established minimally-invasive treatment options for CBDS include endoscopic retrograde cholangiopancreatography (ERCP) and laparoscopic common bile duct exploration. A complex and demanding situation occurs if conventional ERCP extraction methods fail because of the large size and/or the location of the CBDS. Objectives: The hypothesis of the thesis were: 1). The peroperative combination of laparoscopy and endoscopy, with so-called rendezvous ERCP (RV-ERCP) is by comparison with conventional ERCP, a safe and efficient treatment method regarding feasibility in clinical practice, complete stone clearance and ERCP associated complications. 2). Extremely large or so-called difficult CBDS can safely and efficiently be managed with ERCP assisted peroral cholangioscopy in conjunction with laser lithotripsy (LL) or by electrohydraulic lithotripsy (EHL), in order to obtain complete stone clearance. Methods: Study I and II are descriptive case series. Study I included patients from 2000 through 2001 at the Karolinska University Hospital that was treated with RV-ERCP because of CBDS. Study II included patients from 1995 through 2006 recruited from the Karolinska and Östersunds Hospitals, treated with peroral cholangioscopy assisted EHL or LL due to difficult CBDS. In study III, patients with symptomatic gallstone disease were prospectively enrolled in a comparative case-control study. Patients who underwent laparoscopic cholecystectomy were, depending on the peroperative cholangiography results, either treated for CBDS using RV-ERCP or assigned to the control group if their cholangiograms were negative. Pancreatic proenzymes were analyzed at 0, 4, 8 and 24 hours. Study IV was a nationwide population-based nested case-control study within a cohort of 12,718 ERCP investigations selected from the Swedish Registry for Gallstone Surgery and ERCP (GallRiks) from 2007 through 2009. The outcome of post-ERCP pancreatitis (PEP) was analysed for a number of possible risk factors. Results: In study I, 34 patients had a RV-ERCP that was successful in terms of biliary cannulation (100%), duct clearance (94%) and no ERCP related complications such as PEP. The operation time was quite long (mean 82 min), but the hospital stay was equal to those who were operated with LC alone. In study II, 44 patients were treated with EHL or LL and overall ductal clearance was achieved in 34 (74%) cases, of which 13 (30%) patients needed repeated sessions. Large stones (>20 mm) were associated with failure. Old age (≥80 years) and poor physical condition did not affect clinical outcomes, and a majority of the patients remained free from biliary symptoms for many years at follow-up. In study III, the patients treated with RV-ERCP and the control group without ERCP, had significantly less pancreatic enzyme leakage, 4 hours after the intervention and at later time points, compared with the conventional ERCP group. Inadvertent pancreatic duct cannulation and contrast injection into it, were positively associated with higher levels of pancreatic enzymes. Among 17,787 patients registered in GallRiks and observed in study IV, 12,718 patients with no previous ERCP, were eligible for further analysis. The overall rate of PEP was 3.6%. A 50% reduction in the risk of PEP was noted in patients treated with RV-ERCP compared with those who were cannulated by conventional means (OR 0.5, 95% confidence interval 0.2-0.9, p = 0.02). Other factors associated with an increased risk of PEP were young age, prolonged procedure time and elective ERCP. Conclusion: Taken together evidence is hereby provided that RV-ERCP reduces pancreatic damage and decreases the frequency of PEP. CBDS identified during LC can safely and effectively be managed by RV-ERCP in a routine clinical setting. These findings challenge the current management concept of two-step ERCP for treatment of CBDS. In addition, ERCP is an efficient and safe first line method in the management of difficult CBDS and should be recommended even for old and/or frail patients.
  •  
29.
  • Swahn, Fredrik, et al. (author)
  • Endoscopic retrograde cholangiopancreatography with rendezvous cannulation reduces pancreatic injury
  • 2013
  • In: World Journal of Gastroenterology. - : Baishideng Publishing Group Inc.. - 1007-9327 .- 2219-2840. ; 19:36, s. 6026-6034
  • Journal article (peer-reviewed)abstract
    • AIM: To examine whether rendezvous endoscopic retrograde cholangiopancreatography (ERCP) is associated with less pancreatic damage, measured as leakage of proenzymes, than conventional ERCP. METHODS: Patients (n = 122) with symptomatic gallstone disease, intact papilla and no ongoing inflammation, were prospectively enrolled in this case-control designed study. Eighty-one patients were subjected to laparoscopic cholecystectomy and if intraoperative cholangiography suggested common bile duct stones (CBDS), rendezvous ERCP was performed intraoperatively (n = 40). Patients with a negative cholangiogram constituted the control group (n = 41). Another 41 patients with CBDS, not subjected to surgery, underwent conventional ERCP. Pancreatic proenzymes, procarboxypeptidase B and trypsinogen-2 levels in plasma, were analysed at 0, 4, 8 and 24 h. The proenzymes were determined in-house with a double-antibody enzyme linked immunosorbent assay. Pancreatic amylase was measured by an enzymatic colourimetric modular analyser with the manufacturer's reagents. All samples were blinded at analysis. RESULTS: Post ERCP pancreatitis (PEP) occurred in 3/41 (7%) of the patients cannulated with conventional ERCP and none in the rendezvous group. Increased serum levels indicating pancreatic leakage were significantly higher in the conventional ERCP group compared with the rendezvous ERCP group regarding pancreatic amylase levels in the 4- and 8-h samples (P = 0.0015; P = 0.03), procarboxypeptidase B in the 4- and 8-h samples (P < 0.0001; P < 0.0001) and trypsinogen-2 in the 24-hour samples (P = 0.03). No differences in these markers were observed in patients treated with rendezvous cannulation technique compared with patients that underwent cholecystectomy alone (control group). Post procedural concentrations of pancreatic amylase and procarboxypeptidase B were significantly correlated with pancreatic duct cannulation and opacification. CONCLUSION: Rendezvous ERCP reduces pancreatic enzyme leakage compared with conventional ERCP cannulation technique. Thus, laparo-endoscopic technique can be recommended with the ambition to minimise the risk for post ERCP pancreatitis. (C) 2013 Baishideng. All rights reserved.
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30.
  • Swahn, Fredrik, et al. (author)
  • Rendezvous cannulation technique reduces post-ERCP pancreatitis : a prospective nationwide study of 12,718 ERCP procedures
  • 2013
  • In: American Journal of Gastroenterology. - : Ovid Technologies (Wolters Kluwer Health). - 0002-9270 .- 1572-0241. ; 108:4, s. 552-9
  • Journal article (peer-reviewed)abstract
    • OBJECTIVES: The aim of this study was to investigate if intraoperative rendezvous cannulation reduces the risk of post-endoscopic retrograde cholangiopancreatography (ERCP) pancreatitis (PEP) because there is no universal consensus on the optimal treatment of common bile duct stones.METHODS: We performed a nationwide case-control study, nested within the cohort of ERCP procedures reported to the Swedish Registry for Gallstone Surgery and ERCP (GallRiks), between 2007 and 2009. Data were collected prospectively from a web-based registry of ERCP procedures that includes variables such as patient characteristics, indication, cannulation technique, diagnostic findings, therapeutic measures, and complications. The primary outcome was PEP.RESULTS: The registry included 12,718 ERCP procedures performed on patients without a history of previous ERCP. The risk of PEP when using the rendezvous technique compared with those who were cannulated by conventional means was reduced from 3.6 to 2.2% (odds ratio (OR) 0.5, 95% confidence interval 0.2-0.9, P=0.02). Although a significant reduction there are overall relatively few cases with PEP and the calculated numbers needed to treat to avoid one case of PEP is as high as 71. Other factors associated with increased risk of PEP were young age, prolonged procedure time, and elective ERCP.CONCLUSIONS: Rendezvous bile duct cannulation during ERCP reduces the risk of PEP from 3.6 to 2.2% compared with conventional biliary cannulation.
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31.
  • Swahn, Fredrik, et al. (author)
  • The advent of the first electric driven EUS-guided 17 gauge core needle biopsy - A pilot study on subepithelial lesions
  • 2024
  • In: Scandinavian Journal of Gastroenterology. - : TAYLOR & FRANCIS LTD. - 0036-5521 .- 1502-7708.
  • Journal article (peer-reviewed)abstract
    • Background and aims: This pilot study aimed to evaluate safety and tissue sampling from subepithelial lesions (SEL) in the upper gastrointestinal tract with a novel electric motor driven endoscopic ultrasonography (EUS)-guided 17-gauge (G) size core needle biopsy (CNB) instrument. Methods: An investigator-led prospective open label, performance and safety control study, including seven patients (female n = 4, median 71 y, range 28-75) with a determined SEL (median size 30 mm, range 17-150 mm) in the upper digestive tract (stomach n = 6, duodenum n = 1) were eligible and later followed up 14 days after index procedure. All investigations were completed according to protocol with three FNB 22-G passes with four fanning strokes and two EndoDrill (R) 17-G passes with three fanning strokes. Results: Quality of samples as 'visible pieces' (>5 mm): FNB (n = 5/7) (fragmented/blood imbibed n = 1, poor tissue quantity n = 1) compared with 17-G CNB (n = 7/7). Histological result which led to final diagnosis (leiomyoma n = 2, adenocarcinoma n = 1, schwannoma n = 1, neuroendocrine tumour n = 1, desmoid tumour n = 1 and gastrointestinal stromal tumour (GIST) n = 1) could be obtained with the 17-G CNB instrument in all seven patients. FNB technique reached correct diagnosis in six patients. No serious adverse event were recorded. Conclusions: By using an electric driven 17-G biopsy device, a true cylinder of core tissue can be obtained in one single puncture from the area of interest reducing the need for a second sampling. The absolute benefit of EUS-guided CNB is that the sample can be handled and histologically prepared in the same manner as standard percutaneous core needle sample, e.g., breast and prostate cancer.
  •  
32.
  • Sävström, Johan, et al. (author)
  • Redefining the social contract in Africa
  • 2021
  • Reports (pop. science, debate, etc.)abstract
    • This is a summary note of the virtual seminar The Nordic contribution to EU-Africa cooperation in times of threatened multilateralism held on 30 November 2020. Thought leaders, scholars and policymakers from Africa and Europe discussed the need to strengthen the social contract in Africa, and how the Nordic countries can contribute to the future of EU-Africa relations.
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33.
  • Vehviläinen, Sini, et al. (author)
  • Single-operator peroral pancreatoscopy in the preoperative diagnostics of suspected main duct intraductal papillary mucinous neoplasms : efficacy and novel insights on complications
  • 2022
  • In: Surgical Endoscopy. - : Springer. - 0930-2794 .- 1432-2218. ; 36, s. 7431-7443
  • Journal article (peer-reviewed)abstract
    • Background: Distinguishing intraductal papillary mucinous neoplasms (IPMNs) from other pancreatic cystic lesions is essential since IPMNs carry the risk of becoming malignant. Differentiating the main pancreatic duct involving IPMNs (MD-IPMNs) through conventional imaging is deficient. Single-operator peroral pancreatoscopy (SOPP) represents a promising method offering additional information on suspected lesions in the pancreatic main duct (MD). We aimed to determine the role of SOPP in the preoperative diagnostics of suspected MD-IPMNs and identify factors contributing to SOPP-related complications.Materials and Methods: In this primarily retrospective study, SOPPs were performed at three high-volume centers on suspected MD-IPMNs. Primary outcome was the clinical impact of SOPP to subsequent patient care. Additionally, we documented post-SOPP complications and analyzed several assumed patient- and procedure-related risk factors.Results: One hundred and one (101) SOPPs were performed. Subsequent clinical management was affected due to the findings in 86 (85%) cases. Surgery was planned for 29 (29%) patients. A condition other than IPMN explaining MD dilatation was found in 28 (28%) cases. In 35 (35%) cases, follow-up with MRI was continued. Post-SOPP pancreatitis occurred in 20 (20%) patients and one of them was fatal. A decrease in odds of post-SOPP pancreatitis was seen as the MD diameter increases (OR 0.714 for 1.0 mm increase in MD diameter, CI 95% 0.514–0.993, p = 0.045). Furthermore, a correlation between lower MD diameter values and higher severity post-SOPP pancreatitis was seen (TJT = 599, SE = 116.6, z = − 2.31; p = 0.020). History of pancreatitis after endoscopic retrograde cholangiopancreatography was a confirmed risk factor for post-SOPP pancreatitis. Conclusions between complications and other risk factors could not be drawn.Conclusion: SOPP aids clinical decision-making in suspected MD-IPMNs. Risk for post-SOPP pancreatitis is not negligible compared to non-invasive imaging methods. The risk for pancreatitis decreases as the diameter of the MD increases.
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34.
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35.
  • Wolin, Edward M., et al. (author)
  • Phase III study of pasireotide long-acting release in patients with metastatic neuroendocrine tumors and carcinoid symptoms refractory to available somatostatin analogues
  • 2015
  • In: Drug Design, Development and Therapy. - 1177-8881. ; 9, s. 5075-5086
  • Journal article (peer-reviewed)abstract
    • In a randomized, double-blind, Phase III study, we compared pasireotide long-acting release (pasireotide LAR) with octreotide long-acting repeatable (octreotide LAR) in managing carcinoid symptoms refractory to first-generation somatostatin analogues. Adults with carcinoid tumors of the digestive tract were randomly assigned (1:1) to receive pasireotide LAR (60 mg) or octreotide LAR (40 mg) every 28 days. Primary outcome was symptom control based on frequency of bowel movements and flushing episodes. Objective tumor response was a secondary outcome. Progression-free survival (PFS) was calculated in a post hoc analysis. Adverse events were recorded. At the time of a planned interim analysis, the data monitoring committee recommended halting the study because of a low predictive probability of showing superiority of pasireotide over octreotide for symptom control (n=43 pasireotide LAR, 20.9%; n=45 octreotide LAR, 26.7%; odds ratio, 0.73; 95% confidence interval [CI], 0.27-1.97; P=0.53). Tumor control rate at month 6 was 62.7% with pasireotide and 46.2% with octreotide (odds ratio, 1.96; 95% CI, 0.89-4.32; P=0.09). Median (95% CI) PFS was 11.8 months (11.0 - not reached) with pasireotide versus 6.8 months (5.6 - not reached) with octreotide (hazard ratio, 0.46; 95% CI, 0.20-0.98; P=0.045). The most frequent drug-related adverse events (pasireotide vs octreotide) included hyperglycemia (28.3% vs 5.3%), fatigue (11.3% vs 3.5%), and nausea (9.4% vs 0%). We conclude that, among patients with carcinoid symptoms refractory to available somatostatin analogues, similar proportions of patients receiving pasireotide LAR or octreotide LAR achieved symptom control at month 6. Pasireotide LAR showed a trend toward higher tumor control rate at month 6, although it was statistically not significant, and was associated with a longer PFS than octreotide LAR.
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