| 1. |
- Baumgartner, Ruth, et al.
(författare)
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Impact of post-hepatectomy liver failure on morbidity and short- and long-term survival after major hepatectomy
- 2022
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Ingår i: BJS Open. - : Oxford University Press. - 2474-9842. ; 6:4
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Tidskriftsartikel (refereegranskat)abstract
- Background Post-hepatectomy liver failure (PHLF) is one of the most serious postoperative complications after hepatectomy. The aim of this study was to assess the impact of the International Study Group of Liver Surgery (ISGLS) definition of PHLF on morbidity and short- and long-term survival after major hepatectomy. Methods This was a retrospective review of all patients who underwent major hepatectomy (three or more liver segments) for various liver tumours between 2010 and 2018 at two Swedish tertiary centres for hepatopancreatobiliary surgery. Descriptive statistics, regression models, and survival analyses were used. Results A total of 799 patients underwent major hepatectomy, of which 218 patients (27 per cent) developed ISGLS-defined PHLF, including 115 patients (14 per cent) with ISGLS grade A, 76 patients (10 per cent) with grade B, and 27 patients (3 per cent) with grade C. The presence of cirrhosis, perihilar cholangiocarcinoma, and gallbladder cancer, right-sided hemihepatectomy and trisectionectomy all significantly increased the risk of clinically relevant PHLF (grades B and C). Clinically relevant PHLF increased the risk of 90-day mortality and was associated with impaired long-term survival. ISGLS grade A had more major postoperative complications compared with no PHLF but failed to be an independent predictor of both 90-day mortality and long-term survival. The impact of PHLF grade B/C on long-term survival was no longer present in patients surviving the first 90 days after surgery. Conclusions The presently used ISGLS definition for PHLF should be reconsidered regarding mortality as only PHLF grade B/C was associated with a negative impact on short-term survival; however, even ISGLS grade A had clinical implications. The aim was to assess the ISGLS criteria for post-hepatectomy liver failure (PHLF) in a cohort of patients with major hepatectomy. The presently used ISGLS definition for PHLF should be reconsidered regarding mortality as only PHLF grade B/C was associated with a negative impact on short-term survival.
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| 2. |
- Fröberg, Klara, et al.
(författare)
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Outcome after total pancreatectomy with islet autotransplantation : a European single-center study
- 2024
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Ingår i: Scandinavian Journal of Surgery. - : Sage Publications. - 1457-4969 .- 1799-7267. ; 113:2, s. 80-87
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Tidskriftsartikel (refereegranskat)abstract
- Background and aims: Chronic pancreatitis may cause intractable abdominal pain, with total pancreatectomy sometimes being the last resort. To mitigate the subsequent diabetes, total pancreatectomy can be followed by islet autotransplantation (TP-IAT). The primary aim of this study was to assess the outcomes in patients undergoing TP-IAT at Karolinska University Hospital with respect to safety, postoperative complications, and islet graft function. A secondary aim was to compare liver to skeletal muscle as autotransplantation sites.Methods: Single-center observational cohort study on patients undergoing TP-IAT. Islets were transplanted either into the liver or skeletal muscle. Data on baseline characteristics and pretransplantory conditions were collected. Outcome measures included mortality and major postoperative complications as well as the glycemic measures: insulin use, fasting C-peptide, and HbA1c.Results: Between 2004 and 2020, 24 patients underwent TP-IAT. Islets were transplanted into the liver in 9 patients and into skeletal muscle in 15 patients. There was no 90-day mortality, and major complications (Clavien–Dindo ⩾IIIa) occurred in 26.7%, all related to the procedure of total pancreatectomy. Fasting C-peptide could be detected postoperatively, with higher levels in patients receiving islet autotransplantation into the liver (p = 0.006). Insulin independence was not achieved, although insulin doses at last follow-up were significantly lower in patients receiving islet autotransplantation into the liver compared to skeletal muscle (p = 0.036).Conclusion: TP-IAT is safe and associated with tolerable risk, the component of islet autotransplantation being seemingly harmless. Although islet grafts maintain some endocrine function, insulin independence should not be expected. Regarding islet autotransplantation sites, the liver seems superior to skeletal muscle. Clinical trial registration: Not applicable.
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| 3. |
- Ghorbani, Poya
(författare)
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Review and prediction of trauma mortality
- 2018
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Quality management principles stipulate that outcome after injury is dependent upon patient factors, injury severity, structures and processes of care in a trauma system. Structures refers to the context in which care is delivered, including material resources, equipment and competence of involved personnel. Processes refers to what is literally done by the personnel involved in patient care. In this thesis, we examine the different aspects of this conceptual model with outcome as the main focus. Historically, trauma mortality has been the standard quality outcome measure. However, nontrauma related deaths and patients that are dead on arrival (DOA) in registries, complicates the interpretation of trauma mortality statistics. In Paper I, we demonstrated by clinical review of all deaths during 2007-2011 in a Level I trauma centre (Karolinska University Hospital – Solna [KUH]), that 30-day trauma mortality included 10.5% of non-trauma related deaths and the exclusion of DOAs significantly reduced the mortality rate. We concluded that review of all trauma deaths was necessary to correctly interpret trauma mortality. Analysis of preventable death (PD) is another quality outcome measure. The World Health Organization (WHO) has defined PD by the use of survival prediction models which calculates a probability of survival (Ps): non-PD with a Ps <25%, and potentially PD with a Ps >50%. In Paper II, we used a multidisciplinary peer review during 2012-2016, to identify the proportion of potentially PD and errors committed at KUH, and to evaluate the use of the WHO’s Ps cut-offs as a tool to identify the right patients to review, i.e., exclude non-PD from review or to focus review on potentially PD. We used the North American Trauma and Injury Severity Score (TRISS) and the Norwegian Survival Prediction Model in Trauma (NORMIT) to calculate the Ps. When applying the cut-off limits to the groups of non-PDs and potentially PDs for review, both models missed cases that otherwise needed to be reviewed. We concluded that peer review of all trauma deaths is essential in preventability analysis. Survival prediction models, which adjust for case-mix, have been developed to allow comparisons of the quality of trauma care between centres and over time. In Paper III, we used TRISS based risk-adjusted survival to compare two Scandinavian Level I trauma centres (KUH and Oslo University Hospital – Ullevål) during 2009-2011 and concluded that the model had its shortcomings when applied in a Scandinavian setting. The model lacks adjustments for age as a continuous variable and does not include comorbidity which, if included, could improve survival prediction in Scandinavian trauma populations. In Paper IV, we tested the accuracy of NORMIT and its later update (NORMIT 2), in regards to survival prediction, in two Swedish trauma populations; one national population including all hospitals admitting trauma patients in Sweden and one subpopulation of patients admitted to a single designated Level I trauma centre (KUH) during 2014-2016. We concluded that NORMIT 2 can be used to predict survival in a Swedish trauma centre population, but both NORMIT models performed poorly in a more heterogeneous national trauma population.
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| 4. |
- Holmberg, Marcus, et al.
(författare)
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Outcome after resection for invasive intraductal papillary mucinous neoplasia is similar to conventional pancreatic ductal adenocarcinoma
- 2021
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Ingår i: Pancreatology (Print). - : Elsevier. - 1424-3903 .- 1424-3911. ; 21:7, s. 1371-1377
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Tidskriftsartikel (refereegranskat)abstract
- Background/objectives: Resections for intraductal papillary mucinous neoplasm (IPMN) have increased last decades. Overall survival (OS) for conventional pancreatic ductal adenocarcinoma (PDAC) is well known but OS for invasive IPMN (inv-IPMN) is not as conclusive. This study aims to elucidate potential differences in clinicopathology and OS between these tumor types and to investigate if the raised number of resections have affected outcome.Methods: Consecutive patients ≥18 years of age resected for inv-IPMN and PDAC at Karolinska University Hospital between 2009 and 2018 were included. Clinicopathological variables were analyzed in multivariable regression models. Outcome was assessed calculating two-year OS, estimating OS using the Kaplan-Meier model and comparing survival functions with log-rank test.Results: 513 patients were included, 122 with inv-IPMN and 391 with PDAC. During the study period both the proportion resected inv-IPMN and two-year OS, irrespective of tumor type, increased (2.5%–45%; p < 0.001 and 44%–57%; p = 0.005 respectively). In Kaplan-Meier survival analysis inv-IPMN had more favorable median OS (mOS) compared to PDAC (33.6 months vs 19.3 months, p = 0.001). However, in multivariable Cox Regression analysis, tumor type was not a predictor for death, but so were resection period, tumor subtype and N-stage (all p < 0.001).Conclusion: In this large single center observational cohort study, inv-IPMN seemed to have favorable survival outcome compared to PDAC, but after adjusting for predictors for death this benefit vanished. The combination of a pronounced increase in resected inv-IPMN and a concurrent hazard abatement for death within 2 years during the study period proved to be a principal factor.
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| 5. |
- Holmberg, Marcus, et al.
(författare)
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Outcome after surgery for invasive intraductal papillary mucinous neoplasia compared to conventional pancreatic ductal adenocarcinoma : a swedish nationwide register-based study
- 2022
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Ingår i: Pancreatology (Print). - : Elsevier. - 1424-3903 .- 1424-3911. ; 23:1, s. 90-97
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Tidskriftsartikel (refereegranskat)abstract
- Background: The clinical importance of intraductal papillary mucinous neoplasm (IPMN) have increased last decades. Long-term survival after resection for invasive IPMN (inv-IPMN) compared to conventional pancreatic ductal adenocarcinoma (PDAC) is not thoroughly delineated.Objective: This study, based on the Swedish national pancreatic and periampullary cancer registry aims to elucidate the outcome after resection of inv-IPMN compared to PDAC.Methods: All patients ≥18 years of age resected for inv-IPMN and PDAC in Sweden between 2010 and 2019 were included. Clinicopathological variables were retrieved from the national registry. The effect on death was assessed in two multivariable Cox regression models, one for patients resected 2010–2015, one for patients resected 2016–2019. Median overall survival (OS) was estimated using the Kaplan-Meier method.Results: We included 1909 patients, 293 inv-IPMN and 1616 PDAC. The most important independent predictors of death in multivariable Cox regressions were CA19-9 levels, venous resection, tumour differentiation, as well as T-, N-, M-stage and surgical margin. Tumour type was an independent predictor for death in the 2016–2019 cohort, but not in the 2010–2015 cohort. In Kaplan-Meier survival analysis, inv-IPMN was associated with longer median OS in stage N0-1 and in stage M0 compared to PDAC. However, in stage T2-4 and stage N2 median OS was similar, and in stage M1 even shorter for inv-IPMN compared to PDAC.Conclusion: In this population-based nationwide study, outcome after resected inv-IPMN compared to PDAC is more favourable in lower stages, and similar to worse in higher.
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| 6. |
- Johansen, Karin, et al.
(författare)
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Symptoms and life changes after total pancreatectomy : a qualitative study
- 2023
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Ingår i: HPB. - : ELSEVIER SCI LTD. - 1365-182X .- 1477-2574. ; 25:2, s. 269-277
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Total pancreatectomy (TP) is a major surgical procedure that involves lifelong exocrine and endocrine pancreatic insufficiency. Qualitative evidence is sparse regarding patients' experiences after the operation. The aim of this study was to explore patients' experiences of symptoms that occur after TP and how these symptoms affect their health and life situations.METHODS: A qualitative design with prospective consecutive sampling and an inductive thematic analysis was used. Semistructured interviews were postoperatively performed at 6-9 months with 20 patients undergoing TP in two university hospitals in Sweden.RESULTS: Two main themes emerged from the analysis: "Changes in everyday life" and "Psychological journey". Patients experienced symptoms related to diabetes as the major life change after the operation, and they were also limited by symptoms of exocrine insufficiency, difficulties with food intake and physical weakness. In the psychological journey that patients underwent, the support received from family, friends and the health care system was important. Moreover, patients experienced a general need for more extensive information, especially regarding diabetes.CONCLUSION: Patients experience a lack of sufficient support and education after TP, particularly concerning their diabetes. Further efforts should be undertaken to improve information and the organization of diabetes care for this patient group.
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| 7. |
- Stoop, Thomas F., et al.
(författare)
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Surgical Outcome After Distal Pancreatectomy With and Without Portomesenteric Venous Resection in Patients with Pancreatic Adenocarcinoma: A Transatlantic Evaluation of Patients in North America, Germany, Sweden, and The Netherlands (GAPASURG)
- 2024
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Ingår i: Annals of Surgical Oncology. - : SPRINGER. - 1068-9265 .- 1534-4681.
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Tidskriftsartikel (refereegranskat)abstract
- BackgroundPancreatic adenocarcinoma located in the pancreatic body might require a portomesenteric venous resection (PVR), but data regarding surgical risks after distal pancreatectomy (DP) with PVR are sparse. Insight into additional surgical risks of DP-PVR could support preoperative counseling and intraoperative decision making. This study aimed to provide insight into the surgical outcome of DP-PVR, including its potential risk elevation over standard DP.MethodsWe conducted a retrospective, multicenter study including all patients with pancreatic adenocarcinoma who underwent DP +/- PVR (2018-2020), registered in four audits for pancreatic surgery from North America, Germany, Sweden, and The Netherlands. Patients who underwent concomitant arterial and/or multivisceral resection(s) were excluded. Predictors for in-hospital/30-day major morbidity and mortality were investigated by logistic regression, correcting for each audit.ResultsOverall, 2924 patients after DP were included, of whom 241 patients (8.2%) underwent DP-PVR. Rates of major morbidity (24% vs. 18%; p = 0.024) and post-pancreatectomy hemorrhage grade B/C (10% vs. 3%; p = 0.041) were higher after DP-PVR compared with standard DP. Mortality after DP-PVR and standard DP did not differ significantly (2% vs. 1%; p = 0.542). Predictors for major morbidity were PVR (odds ratio [OR] 1.500, 95% confidence interval [CI] 1.086-2.071) and conversion from minimally invasive to open surgery (OR 1.420, 95% CI 1.032-1.970). Predictors for mortality were higher age (OR 1.087, 95% CI 1.045-1.132), chronic obstructive pulmonary disease (OR 4.167, 95% CI 1.852-9.374), and conversion from minimally invasive to open surgery (OR 2.919, 95% CI 1.197-7.118), whereas concomitant PVR was not associated with mortality.ConclusionsPVR during DP for pancreatic adenocarcinoma in the pancreatic body is associated with increased morbidity, but can be performed safely in terms of mortality.
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| 8. |
- Stoop, Thomas F., et al.
(författare)
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Surgical Outcomes After Total Pancreatectomy : A High-Volume Center Experience
- 2021
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Ingår i: Annals of Surgical Oncology. - : Springer. - 1068-9265 .- 1534-4681. ; 28:3, s. 1543-1551
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Tidskriftsartikel (refereegranskat)abstract
- Background: The impact of high-volume care in total pancreatectomy (TP) is barely explored since annual numbers are mostly low. This study evaluated surgical outcomes after TP over time in a high-volume center.Methods: All adult patients (age >= 18 years) who underwent an elective single-stage TP at Karolinska University Hospital were retrospectively analysed (2008-2017). High volume was defined as > 20 TPs/year.Results: Overall, 145 patients after TP were included, including 86 (59.3%) extended resections. Major morbidity was 34.5% (50/145) and 90-day mortality 5.5% (8/145). The relative use of TP within all pancreatectomies increased from 5.4% (63/1175) in 2008-2015 to 17.3% (82/473) in 2016-2017 (p < 0.001). Over time, TP was more often performed to achieve radicality (n = 11, 17.5% ton = 31, 37.8%;p = 0.007). In multivariable logistic regression analysis, an annual TP-volume of > 20 was associated with reduced major morbidity (odds ratio [OR] = 0.225, 95% confidence interval [CI], 0.097-0.521;p < 0.001). In the high-volume years (2016-2017), major morbidity (n = 31, 49.2% ton = 19, 23.2%;p = 0.001) and relaparotomy rate (n = 13, 20.6% ton = 5, 6.1%;p = 0.009) improved. Improvements occurred mainly after extended TP, including lower major morbidity (n = 22, 57.9% ton = 12, 25.0%;p = 0.002) and in-hospital mortality (n = 3, 7.9% ton = 0, 0%;p = 0.082).Conclusions: In a single, high-volume center study, an increase in surgical volume of TP was associated with improved perioperative outcomes, especially for extended resections.
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| 9. |
- Strömmer, Lovisa, et al.
(författare)
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Risk-adjusted mortality in severely injured adult trauma patients in Sweden
- 2022
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Ingår i: BJS Open. - : Oxford University Press (OUP). - 2474-9842. ; 6:2
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Tidskriftsartikel (refereegranskat)abstract
- A population-based trauma register was used to develop a risk-adjustment model in order to compare mortality between university and emergency hospitals in clinically relevant subsets of trauma patients (multiple blunt trauma, penetrating truncal trauma, and severe traumatic brain injury). The results suggest that university hospitals outperform emergency hospitals when it comes to the treatment of traumatic brain injury, but the differences in outcome following extracranial trauma appear more uniform. We recommend monitoring of risk-adjusted mortality in clinically relevant subsets for the continuous evaluation of quality of trauma care. Background Risk-adjusted mortality (RAM) analysis and comparisons of clinically relevant subsets of trauma patients allow hospitals to assess performance in different processes of care. The aim of the study was to develop a RAM model and compare RAM ratio (RAMR) in subsets of severely injured adult patients treated in university hospitals (UHs) and emergency hospitals (EHs) in Sweden. Methods This was a retrospective study of the Swedish trauma registry data (2013 to 2017) comparing RAMR in patients (aged 15 years or older and New Injury Severity Score (NISS) of more than 15) in the total population (TP) and in multisystem blunt (MB), truncal penetrating (PEN), and severe traumatic brain injury (STBI) subsets treated in UHs and EHs. The RAM model included the variables age, NISS, ASA Physical Status Classification System Score, and physiology on arrival. Results In total, 6690 patients were included in the study (4485 from UHs and 2205 from EHs). The logistic regression model showed a good fit. RAMR was 4.0, 3.8, 7.4, and 8.5 percentage points lower in UH versus EH for TP (P < 0.001), MB (P < 0.001), PEN (P = 0.096), and STBI (P = 0.005), respectively. The TP and MB subsets were subgrouped in with (+) and without (-) traumatic brain injury (TBI). RAMR was 7.5 and 7.0, respectively, percentage points lower in UHs than in EHs in TP + TBI and MB + TBI (both P < 0.001). In the TP-TBI (P = 0.027) and MB-TBI (P = 0.107) subsets the RAMR was 1.6 and 1.8 percentage points lower, respectively. Conclusion The lower RAMR in UHs versus EH were due to differences in TBI-related mortality. No evidence supported that Swedish EHs provide inferior quality of care for trauma patients without TBI or for patients with penetrating injuries.
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| 10. |
- Uijterwijk, Bas A., et al.
(författare)
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The Five Periampullary Cancers, not Just Different Siblings but Different Families: An International Multicenter Cohort Study
- 2024
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Ingår i: Annals of Surgical Oncology. - : SPRINGER. - 1068-9265 .- 1534-4681.
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Tidskriftsartikel (refereegranskat)abstract
- Background: Cancer arising in the periampullary region can be anatomically classified in pancreatic ductal adenocarcinoma (PDAC), distal cholangiocarcinoma (dCCA), duodenal adenocarcinoma (DAC), and ampullary carcinoma. Based on histopathology, ampullary carcinoma is currently subdivided in intestinal (AmpIT), pancreatobiliary (AmpPB), and mixed subtypes. Despite close anatomical resemblance, it is unclear how ampullary subtypes relate to the remaining periampullary cancers in tumor characteristics and behavior. Methods: This international cohort study included patients after curative intent resection for periampullary cancer retrieved from 44 centers (from Europe, United States, Asia, Australia, and Canada) between 2010 and 2021. Preoperative CA19-9, pathology outcomes and 8-year overall survival were compared between DAC, AmpIT, AmpPB, dCCA, and PDAC. Results: Overall, 3809 patients were analyzed, including 348 DAC, 774 AmpIT, 848 AmpPB, 1,036 dCCA, and 803 PDAC. The highest 8-year overall survival was found in patients with AmpIT and DAC (49.8% and 47.9%), followed by AmpPB (34.9%, P < 0.001), dCCA (26.4%, P = 0.020), and finally PDAC (12.9%, P < 0.001). A better survival was correlated with lower CA19-9 levels but not with tumor size, as DAC lesions showed the largest size. Conclusions: Despite close anatomic relations of the five periampullary cancers, this study revealed differences in preoperative blood markers, pathology, and long-term survival. More tumor characteristics are shared between DAC and AmpIT and between AmpPB and dCCA than between the two ampullary subtypes. Instead of using collective definitions for "periampullary cancers" or anatomical classification, this study emphasizes the importance of individual evaluation of each histopathological subtype with the ampullary subtypes as individual entities in future studies.
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| 11. |
- Uijterwijk, Bas A., et al.
(författare)
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The road to tailored adjuvant chemotherapy for all four non-pancreatic periampullary cancers: An international multimethod cohort study
- 2024
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Ingår i: British Journal of Cancer. - : SPRINGERNATURE. - 0007-0920 .- 1532-1827.
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Tidskriftsartikel (refereegranskat)abstract
- Background: Despite differences in tumour behaviour and characteristics between duodenal adenocarcinoma (DAC), the intestinal (AmpIT) and pancreatobiliary (AmpPB) subtype of ampullary adenocarcinoma and distal cholangiocarcinoma (dCCA), the effect of adjuvant chemotherapy (ACT) on these cancers, as well as the optimal ACT regimen, has not been comprehensively assessed. This study aims to assess the influence of tailored ACT on DAC, dCCA, AmpIT, and AmpPB. Patients and methods: Patients after pancreatoduodenectomy for non-pancreatic periampullary adenocarcinoma were identified and collected from 36 tertiary centres between 2010 - 2021. Per non-pancreatic periampullary tumour type, the effect of adjuvant chemotherapy and the main relevant regimens of adjuvant chemotherapy were compared. The primary outcome was overall survival (OS). Results: The study included a total of 2866 patients with DAC (n = 330), AmpIT (n = 765), AmpPB (n = 819), and dCCA (n = 952). Among them, 1329 received ACT, and 1537 did not. ACT was associated with significant improvement in OS for AmpPB (P = 0.004) and dCCA (P < 0.001). Moreover, for patients with dCCA, capecitabine mono ACT provided the greatest OS benefit compared to gemcitabine (P = 0.004) and gemcitabine - cisplatin (P = 0.001). For patients with AmpPB, no superior ACT regime was found (P > 0.226). ACT was not associated with improved OS for DAC and AmpIT (P = 0.113 and P = 0.445, respectively). Discussion: Patients with resected AmpPB and dCCA appear to benefit from ACT. While the optimal ACT for AmpPB remains undetermined, it appears that dCCA shows the most favourable response to capecitabine monotherapy. Tailored adjuvant treatments are essential for enhancing prognosis across all four non-pancreatic periampullary adenocarcinomas.
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| 12. |
- Vujasinovic, Miroslav, et al.
(författare)
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Paraduodenal pancreatitis - problem in the groove
- 2022
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Ingår i: Scandinavian Journal of Gastroenterology. - : TAYLOR & FRANCIS LTD. - 0036-5521 .- 1502-7708.
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Tidskriftsartikel (refereegranskat)abstract
- Background Paraduodenal pancreatitis (PDP) is a particular form of chronic pancreatitis (CP) occurring in and around the duodenal wall. Despite its low prevalence, this rare condition presents a significant challenge in clinical practice. Methods We retrospectively analysed the electronic medical charts of all patients with a diagnosis of chronic pancreatitis and identified those with PDP, between January 1999 and December 2020. Results There were 35 patients diagnosed with PDP (86% males and 14% females); median age of 56 +/- 11 (range 38-80). Alcohol overconsumption was reported in 81% and smoking in 90% of patients. Abdominal pain was the leading symptom (71%), followed by weight loss, nausea and vomiting, jaundice, and diarrhoea. In 23 patients (66%), recurrent acute pancreatitis attacks were noted. Focal duodenal wall thickening was present in 34 patients (97%), cystic lesions in 80%, pancreatic duct dilatation in 54% and common bile duct dilatation in 46%. Endoscopic treatment was performed on nine patients (26%) and five patients (14%) underwent surgery. Complete symptom relief was reported in 12 patients (34%), partial symptom relief in three (9%), there was no improvement in five (14%), data were not available in three (9%) and 12 (34%) patients died before data analysis. Conclusions PDP is a rare form of pancreatitis, most commonly occurring in the 5th or 6th decade of life, with a predominance in males and patients with a history of smoking and high alcohol consumption. Focal thickening and cystic lesions of the duodenal wall are the most common imaging findings, followed by pancreatic duct and common bile duct dilatation. A minority of patients requires surgery.
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