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- Lagergren, Jesper, et al.
(författare)
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Extent of lymphadenectomy and prognosis after esophageal cancer surgery
- 2015
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Ingår i: JAMA Surgery. - Stockholm : Karolinska Institutet, Dept of Molecular Medicine and Surgery. - 2168-6254 .- 2168-6262.
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Tidskriftsartikel (refereegranskat)abstract
- Importance: The prognostic role of the extent of lymphadenectomy during surgery for esophageal cancer is uncertain and requires clarification. Objective: To clarify whether the number of removed lymph nodes influences mortality following surgery for esophageal cancer. Design, Setting, and Participants: Conducted from January 1, 2000, to January 31, 2014, this was a cohort study of patients who underwent esophagectomy for cancer in 2000-2012 at a high-volume hospital for esophageal cancer surgery, with follow-up until 2014. Exposures: The main exposure was the number of resected lymph nodes. Secondary exposures were the number of metastatic lymph nodes and positive to negative lymph node ratio. Main Outcomes and Measures: The independent role of the extent of lymphadenectomy in relation to all-cause and disease-specific 5-year mortality was analyzed using Cox proportional hazard regression models, providing hazard ratios (HRs) with 95% CIs. The HRs were adjusted for age, pathological T category, tumor differentiation, margin status, calendar period of surgery, and response to preoperative chemotherapy. Results: Among 606 included patients, 506 (83.5%) had adenocarcinoma of the esophagus, 323 (53%) died within 5 years of surgery, and 235 (39%) died of tumor recurrence. The extent of lymphadenectomy was not statistically significantly associated with all-cause or disease-specific mortality, independent of the categorization of lymphadenectomy or stratification for T category, calendar period, or chemotherapy. Patients in the fourth quartile of the number of removed nodes (21-52 nodes) did not demonstrate a statistically significant reduction in all-cause 5-year mortality compared with those in the lowest quartile (0-10 nodes) (HR, 0.86; 95% CI, 0.63-1.17), particularly not in the most recent calendar period (HR, 0.98; 95% CI, 0.57-1.66 for years 2007-2012). A greater number of metastatic nodes and a higher positive to negative node ratio was associated with increased mortality rates, and these associations showed dose-response associations. Conclusions and Relevance: This study indicated that the extent of lymphadenectomy during surgery for esophageal cancer might not influence 5-year all-cause or disease-specific survival. These results challenge current clinical guidelines. This cohort study indicates that the extent of lymphadenectomy during surgery for esophageal cancer might not influence the 5-year all-cause or disease-specific survival. These results challenge current clinical guidelines.
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- Analatos, Apostolos, et al.
(författare)
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Clinical Outcomes of a Laparoscopic Total vs a 270 degrees Posterior Partial Fundoplication in Chronic Gastroesophageal Reflux Disease : A Randomized Clinical Trial
- 2022
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Ingår i: JAMA Surgery. - : American Medical Association (AMA). - 2168-6254 .- 2168-6262. ; 157:6, s. 473-480
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Tidskriftsartikel (refereegranskat)abstract
- Importance The efficacy of fundoplication operations in the management of gastroesophageal reflux disease (GERD) has been documented. However, few prospective, controlled series report long-term (>10 years) efficacy and postfundoplication concerns, particularly when comparing various types of fundoplication.Objective To compare long-term (>15 years) results regarding mechanical complications, reflux control, and quality of life between patients undergoing posterior partial fundoplication (PF) or total fundoplication (TF) (270 degrees vs 360 degrees) in surgical treatment for GERD.Design, setting and participants A double-blind randomized clinical trial was performed at a single center (Ersta Hospital, Stockholm, Sweden) from November 19, 2001, to January 24, 2006. A total of 456 patients were recruited and randomized. Data for this analysis were collected from August 1, 2019, to January 31, 2021.Interventions Laparoscopic 270 degrees posterior PF vs 360 degrees TF.Main Outcomes and Measures The main outcome was dysphagia scores for solid and liquid food items after more than 15 years. Generic (36-Item Short-Form Health Survey) and disease-specific (Gastrointestinal Symptom Rating Scale) quality of life and proton pump inhibitor consumption were also assessed.Results Among 407 available patients, relevant data were obtained from 310 (response rate, 76%; mean [SD] age, 66 [11.2] years; 184 [59%] men). A total of 159 were allocated to a PF and 151 to a TF. The mean (SD) follow-up time was 16 (1.3) years. At 15 years after surgery, mean (SD) dysphagia scores were low for both liquids (PF, 1.2 [0.5]; TF, 1.2 [0.5]; P = .58) and solids (PF, 1.3 [0.6]; TF, 1.3 [0.5]; P = .97), without statistically significant differences between the groups. Reflux symptoms were equally well controlled by the 2 types of fundoplications as were the improvements of quality-of-life scores.Conclusions and Relevance The long-term findings of this randomized clinical trial indicate that PF and TF are equally effective for controlling GERD and quality of life in the long term. Although PF was superior in the first years after surgery in terms of less dysphagia recorded, this difference did not prevail when assessed a decade later.
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- Analatos, Apostolos, et al.
(författare)
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Hiatal Hernia Repair With Tension-Free Mesh or Crural Sutures Alone in Antireflux Surgery A 13-Year Follow-Up of a Randomized Clinical Trial
- 2024
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Ingår i: JAMA Surgery. - : American Medical Association (AMA). - 2168-6254 .- 2168-6262. ; 159:1, s. 11-18
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Tidskriftsartikel (refereegranskat)abstract
- Importance Antireflux surgery is an effective treatment of gastroesophageal reflux disease (GERD), but the durability of concomitant hiatal hernia repair remains challenging. Previous research reported that the use of a mesh-reinforced, tension-free technique was associated with more dysphagia for solid foods after 3 years without reducing hiatal hernia recurrence rates compared with crural sutures alone, but the long-term effects of this technique have not been assessed.Objective To assess the long-term anatomical and functional outcomes of using a mesh for hiatal hernia repair in patients with GERD.Design, Setting, and Participants A double-blind, randomized clinical trial was performed at a single center (Ersta Hospital, Stockholm, Sweden) from January 11, 2006, to December 1, 2010. A total of 159 patients were recruited and randomly assigned. Data for the current analysis were collected from September 1, 2021, to March 31, 2022. All analyses were conducted with the intention-to-treat population.Interventions Closure of the diaphragmatic hiatus with crural sutures alone vs a tension-free technique using a nonabsorbable polytetrafluoroethylene mesh (Bard CruraSoft).Main Outcomes and Measures The primary outcome was radiologically verified recurrent hiatal hernia after more than 10 years. Secondary outcomes were dysphagia scores (ranging from 1 to 4, with 1 indicating no episodes of dysphagia and 4 indicating more than 3 episodes of dysphagia per day) for solid and liquid foods, generic 36-Item Short Form Health Survey and disease-specific Gastrointestinal Symptom Rating Scale symptom assessment scores, proton pump inhibitor consumption, and reoperation rates. Intergroup comparisons of parametric data were performed using t tests; for nonparametric data, Mann-Whitney U, chi(2), or Fisher exact tests were used. For intragroup comparisons vs the baseline at follow-up times, the Friedman test was used, and post hoc analysis was performed using Wilcoxon matched pairs.Results Of 145 available patients, follow-up data were obtained from 103 (response rate 71%; mean [SD] age at follow-up, 65 [11.3] years; 55 [53%] female), with 53 initially randomly assigned to mesh reinforcement, and 50 to crural suture alone. The mean (SD) follow-up time was 13 (1.1) years. The verified radiologic hiatal hernia recurrence rates were 11 of 29 (38%) in the mesh group vs 11 of 35 (31%) in the suture group (P = .61). However, 13 years postoperatively, mean (SD) dysphagia scores for solids remained significantly higher in the mesh group (mean [SD], 1.9 [0.7] vs 1.6 [0.9]; P = .01).Conclusions and Relevance Findings from this long-term follow-up of a randomized clinical trial suggest that tension-free crural repair with nonabsorbable mesh does not reduce the incidence of hiatal hernia recurrence 13 years postoperatively. This finding combined with maintained higher dysphagia scores does not support the routine use of tension-free polytetrafluoroethylene mesh closure in laparoscopic hiatal hernia repair for treatment of GERD.Trial Registration ClinicalTrials.gov Identifier: NCT05069493
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- Azhar, Najia, et al.
(författare)
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Laparoscopic Lavage vs Primary Resection for Acute Perforated Diverticulitis: Long-term Outcomes From the Scandinavian Diverticulitis (SCANDIV) Randomized Clinical Trial
- 2021
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Ingår i: JAMA Surgery. - Chicago, IL, United States : American Medical Association. - 2168-6254 .- 2168-6262. ; 156:2, s. 121-127
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Tidskriftsartikel (refereegranskat)abstract
- IMPORTANCE Perforated colonic diverticulitis usually requires surgical resection, with significant morbidity. Short-term results from randomized clinical trials have indicated that laparoscopic lavage is a feasible alternative to resection. However, it appears that no long-term results are available.OBJECTIVE To compare long-term (5-year) outcomes of laparoscopic peritoneal lavage and primary resection as treatments of perforated purulent diverticulitis.DESIGN, SETTING, AND PARTICIPANTS This international multicenter randomized clinical trial was conducted in 21 hospitals in Sweden and Norway, which enrolled patients between February 2010 and June 2014. Long-term follow-upwas conducted between March 2018 and November 2019. Patients with symptoms of left-sided acute perforated diverticulitis, indicating urgent surgical need and computed tomography-verified free air, were eligible. Those available for trial intervention (Hinchey stagesINTERVENTIONS Patients were assigned to undergo laparoscopic peritoneal lavage or colon resection based on computer-generated, center-stratified block randomization.MAIN OUTCOMES AND MEASURES The primary outcome was severe complications within 5 years. Secondary outcomes included mortality, secondary operations, recurrences, stomas, functional outcomes, and quality of life.RESULTS Of 199 randomized patients, 101were assigned to undergo laparoscopic peritoneal lavage and 98were assigned to colon resection. At the time of surgery, perforated purulent diverticulitiswas confirmed in 145 patients randomized to lavage (n = 74) and resection (n = 71). The median follow-upwas 59 (interquartile range, 51-78; full range, 0-110) months, and 3 patientswere lost to follow-up, leaving a final analysis of 73 patients who had had laparoscopic lavage (mean [SD] age, 66.4 [13] years; 39 men [53%]) and 69 who had received a resection (mean [SD] age, 63.5 [14] years; 36 men [52%]). Severe complications occurred in 36%(n = 26) in the laparoscopic lavage group and 35%(n = 24) in the resection group (P = .92). Overall mortalitywas 32%(n = 23) in the laparoscopic lavage group and 25%(n = 17) in the resection group (P = .36). The stoma prevalencewas 8%(n = 4) in the laparoscopic lavage group vs 33% (n = 17; P =.002) in the resection group among patients who remained alive, and secondary operations, including stoma reversal, were performed in 36%(n = 26) vs 35%(n = 24; P = .92), respectively. Recurrence of diverticulitiswas higher following laparoscopic lavage (21% [n = 15] vs 4%[n = 3]; P = .004). In the laparoscopic lavage group, 30%(n = 21) underwent a sigmoid resection. Therewere no significant differences in the EuroQoL-5Dquestionnaire or Cleveland Global Quality of Life scores between the groups.CONCLUSIONS AND RELEVANCE Long-term follow-up showed no differences in severe complications. Recurrence of diverticulitis after laparoscopic lavage was more common, often leading to sigmoid resection. This must be weighed against the lower stoma prevalence in this group. Shared decision-making considering both short-term and long-term consequences is encouraged.
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- Bagge, Roger Olofsson, et al.
(författare)
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Population-Based Validation of the MIA and MSKCC Tools for Predicting Sentinel Lymph Node Status
- 2024
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Ingår i: JAMA Surgery. - : AMER MEDICAL ASSOC. - 2168-6254 .- 2168-6262.
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Tidskriftsartikel (refereegranskat)abstract
- Importance Patients with melanoma are selected for sentinel lymph node biopsy (SLNB) based on their risk of a positive SLN. To improve selection, the Memorial Sloan Kettering Cancer Center (MSKCC) and Melanoma Institute Australia (MIA) developed predictive models, but the utility of these models remains to be tested.Objective To determine the clinical utility of the MIA and MSKCC models.Design, Setting, and Participants This was a population-based comparative effectiveness research study including 10 089 consecutive patients with cutaneous melanoma undergoing SLNB from the Swedish Melanoma Registry from January 2007 to December 2021. Data were analyzed from May to August 2023.Main Outcomes and Measures, The predicted probability of SLN positivity was calculated using the MSKCC model and a limited MIA model (using mitotic rate as absent/present instead of count/mm(2) and excluding the optional variable lymphovascular invasion) for each patient. The operating characteristics of the models were assessed and compared. The clinical utility of each model was assessed using decision curve analysis and compared with a strategy of performing SLNB on all patients.Results Among 10 089 included patients, the median (IQR) age was 64.0 (52.0-73.0) years, and 5340 (52.9%) were male. The median Breslow thickness was 1.8 mm, and 1802 patients (17.9%) had a positive SLN. Both models were well calibrated across the full range of predicted probabilities and had similar external area under the receiver operating characteristic curves (AUC; MSKCC: 70.8%; 95% CI, 69.5-72.1 and limited MIA: 69.7%; 95% CI, 68.4-71.1). At a risk threshold of 5%, decision curve analysis indicated no added net benefit for either model compared to performing SLNB for all patients. At risk thresholds of 10% or higher, both models added net benefit compared to SLNB for all patients. The greatest benefit was observed in patients with T2 melanomas using a threshold of 10%; in that setting, the use of the nomograms led to a net reduction of 8 avoidable SLNBs per 100 patients for the MSKCC nomogram and 7 per 100 patients for the limited MIA nomogram compared to a strategy of SLNB for all.Conclusions and Relevance This study confirmed the statistical performance of both the MSKCC and limited MIA models in a large, nationally representative data set. However, decision curve analysis demonstrated that using the models only improved selection for SLNB compared to biopsy in all patients when a risk threshold of at least 7% was used, with the greatest benefit seen for T2 melanomas at a threshold of 10%. Care should be taken when using these nomograms to guide selection for SLNB at the lowest thresholds.
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- Beard, Jessica H., et al.
(författare)
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Outcomes After Inguinal Hernia Repair With Mesh Performed by Medical Doctors and Surgeons in Ghana
- 2019
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Ingår i: JAMA Surgery. - : AMER MEDICAL ASSOC. - 2168-6254 .- 2168-6262. ; 154:9, s. 853-859
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Tidskriftsartikel (refereegranskat)abstract
- Key PointsQuestionWhat are the outcomes after mesh inguinal hernia repair performed by medical doctors compared with surgeons in Ghana? FindingsIn this cohort study of 242 men with primary reducible inguinal hernia, there was no significant difference in hernia recurrence at 1 year after inguinal hernia repair with mesh performed by medical doctors compared with surgeons (0.9% vs 2.8%). MeaningThis study shows that medical doctors can be trained to perform inguinal hernia repair with mesh in men with good results in a low-resource setting and appears to support surgical task sharing to combat the global burden of hernia disease. ImportanceInguinal hernia is the most common general surgical condition in the world. Although task sharing of surgical care with nonsurgeons represents one method to increase access to essential surgery, the safety and outcomes of this strategy are not well described for hernia repair. ObjectiveTo compare outcomes after inguinal hernia repair with mesh performed by medical doctors and surgeons in Ghana. Design, Setting, and ParticipantsThis prospective cohort study was conducted from February 15, 2017, to September 17, 2018, at the Volta Regional Hospital in Ho, Ghana. Following successful completion of a training course, 3 medical doctors and 2 surgeons performed inguinal hernia repair with mesh according to the Lichtenstein technique on 242 men with primary, reducible inguinal hernia. Main Outcomes and MeasuresThe primary end point was hernia recurrence at 1 year. The noninferiority limit was set at 5 percentage points. Secondary end points included postoperative complications at 2 weeks and patient satisfaction, pain, and self-assessed health status at 1 year. ResultsTwo-hundred forty-two patients were included; 119 men underwent operations performed by medical doctors and 123 men underwent operations performed by surgeons. Preoperative patient characteristics were similar in both groups. Two-hundred thirty-seven patients (97.9%) were seen at follow-up at 2 weeks, and 223 patients (92.1%) were seen at follow-up at 1 year. The absolute difference in recurrence rate between the medical doctor group (1 [0.9%]) and the surgeon group (3 [2.8%]) was -1.9 (1-tailed 95% CI, -4.8; Pamp;lt;.001), demonstrating noninferiority of the medical doctors. There were no statistically significant differences in postoperative complications (34 [29.1%] vs 29 [24.2%]), patient satisfaction (112 [98.2%] vs 108 [99.1%]), severe chronic pain (1 [0.9%] vs 4 [3.7%]), or self-assessed health (85.9 vs 83.7 of 100) for medical doctors and surgeons. Conclusions and RelevanceThis study shows that medical doctors can be trained to perform elective inguinal hernia repair with mesh in men with good results and high patient satisfaction in a low-resource setting. This finding supports surgical task sharing to combat the global burden of hernia disease. This cohort study compares the outcomes associated with inguinal hernia repair performed by medical doctors vs surgeons in Ghana.
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- Beard, J, et al.
(författare)
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Hernia Mesh Repair and Global Surgery
- 2016
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Ingår i: JAMA surgery. - : American Medical Association (AMA). - 2168-6262 .- 2168-6254. ; 151:12, s. 1191-1191
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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- Blohm, My, et al.
(författare)
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Differences in cholecystectomy outcomes and operating time between male and female surgeons in Sweden
- 2023
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Ingår i: JAMA Surgery. - : American Medical Association (AMA). - 2168-6254 .- 2168-6262. ; 158:11, s. 1168-1175
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Tidskriftsartikel (refereegranskat)abstract
- IMPORTANCE: Female surgeons are still in the minority worldwide, and highlighting gender differences in surgery is important in understanding and reducing inequities within the surgical specialty. Studies on different surgical procedures indicate equal results, or safer outcomes, for female surgeons, but it is still unclear whether surgical outcomes of gallstone surgery differ between female and male surgeons.OBJECTIVE: To examine the association of the surgeon's gender with surgical outcomes and operating time in elective and acute care cholecystectomies.DESIGN, SETTING, AND PARTICIPANTS: A population-based cohort study based on data from the Swedish Registry of Gallstone Surgery was performed from January 1, 2006, to December 31, 2019. The sample included all registered patients undergoing cholecystectomy in Sweden during the study period. The follow-up time was 30 days. Data analysis was performed from September 1 to September 7, 2022, and updated March 24, 2023.EXPOSURE: The surgeon's gender.MAIN OUTCOME(S) AND MEASURE(S): The association between the surgeon's gender and surgical outcomes for elective and acute care cholecystectomies was calculated with generalized estimating equations. Differences in operating time were calculated with mixed linear model analysis.RESULTS: A total of 150 509 patients, with 97 755 (64.9%) undergoing elective cholecystectomies and 52 754 (35.1%) undergoing acute care cholecystectomies, were operated on by 2553 surgeons, including 849 (33.3%) female surgeons and 1704 (67.7%) male surgeons. Female surgeons performed fewer cholecystectomies per year and were somewhat better represented at universities and private clinics. Patients operated on by male surgeons had more surgical complications (odds ratio [OR], 1.29; 95% CI, 1.19-1.40) and total complications (OR, 1.12; 95% CI, 1.06-1.19). Male surgeons had more bile duct injuries in elective surgery (OR, 1.69; 95% CI, 1.22-2.34), but no significant difference was apparent in acute care operations. Female surgeons had significantly longer operation times. Male surgeons converted to open surgery more often than female surgeons in acute care surgery (OR, 1.22; 95% CI, 1.04-1.43), and their patients had longer hospital stays (OR, 1.21; 95% CI, 1.11-1.31). No significant difference in 30-day mortality could be demonstrated.CONCLUSIONS AND RELEVANCE: The results of this cohort study indicate that female surgeons have more favorable outcomes and operate more slowly than male surgeons in elective and acute care cholecystectomies. These findings may contribute to an increased understanding of gender differences within this surgical specialty.
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- Bruze, Gustaf, et al.
(författare)
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Associations of Bariatric Surgery With Changes in Interpersonal Relationship Status Results From 2 Swedish Cohort Studies
- 2018
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Ingår i: JAMA Surgery. - : American Medical Association. - 2168-6254 .- 2168-6262. ; 153:7, s. 654-661
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Tidskriftsartikel (refereegranskat)abstract
- IMPORTANCE: Bariatric surgery is a life-changing treatment for patients with severe obesity, but little is known about its association with interpersonal relationships.OBJECTIVES: To investigate if relationship status is altered after bariatric surgery.DESIGN, SETTING, AND PARTICIPANTS: Changes in relationship status after bariatric surgery were examined in 2 cohorts: (1) the prospective Swedish Obese Subjects (SOS) study, which recruited patients undergoing bariatric surgery from September 1, 1987, to January 31, 2001, and compared their care with usual nonsurgical care in matched obese control participants; and (2) participants from the Scandinavian Obesity Surgery Registry (SOReg), a prospective, electronically captured register that recruited patients from January 2007 through December 2012 and selected comparator participants from the general population matched on age, sex, and place of residence. Data was collected in surgical departments and primary health care centers in Sweden. The current analysis includes data collected up until July 2015 (SOS) and December 2012 (SOReg). Data analysis was completed from June 2016 to December 2017.MAIN OUTCOMES AND MEASURES: In the SOS study, information on relationship status was obtained from questionnaires. In the SOReg and general population cohort, information on marriage and divorce was obtained from the Swedish Total Population Registry.RESULTS: The SOS study included 1958 patients who had bariatric surgery (of whom 1389 [70.9%] were female) and 1912 matched obese controls (of whom 1354 [70.8%] were female) and had a median (range) follow-up of 10 (0.5-20) years. The SOReg cohort included 29 234 patients who had gastric bypass surgery (of whom 22 131 [75.6%] were female) and 283 748 comparators from the general population (of whom 214 342 [75.5%] were female), and had a median (range) follow-up of 2.9 (0.003-7.0) years. In the SOS study, the surgical patients received gastric banding (n = 368; 18.8%), vertical banded gastroplasty (n = 1331; 68.0%), or gastric bypass (n = 259; 13.2%); controls received usual obesity care. In SOReg, all 29 234 surgical participants received gastric bypass surgery. In the SOS study, bariatric surgery was associated with increased incidence of divorce/separation compared with controls for those in a relationship (adjusted hazard ratio [aHR] = 1.28; 95% CI, 1.03-1.60; P =.03) and increased incidence of marriage or new relationship (aHR = 2.03; 95% CI, 1.52-2.71; P <.001) in those who were unmarried or single at baseline. In the SOReg and general population cohort, gastric bypass was associated with increased incidence of divorce compared with married control participants (aHR = 1.41; 95% CI, 1.33-1.49; P <.001) and increased incidence of marriage in those who were unmarried at baseline (aHR = 1.35; 95% CI, 1.28-1.42; P <.001). Within the surgery groups, changes in relationship status were more common in those with larger weight loss.CONCLUSIONS AND RELEVANCE: In addition to its association with obesity comorbidities, bariatric surgery-induced weight loss is also associated with changes in relationship status.
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- Enochsson, Lars, et al.
(författare)
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The Swedish Registry of Gallstone Surgery and Endoscopic Retrograde Cholangiopancreatography (GallRiks) : A nationwide registry for quality assurance of gallstone surgery.
- 2013
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Ingår i: JAMA Surgery. - : American Medical Association (AMA). - 2168-6254 .- 2168-6262. ; 148:5, s. 471-8
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVES: To describe the process of initiating and organizing a nationwide validated web-based quality registry of gallstone surgery and endoscopic retrograde cholangiopancreatography (ERCP) and to present some clinical data and the impact the registry has had on the clinical treatment of gallstones.DESIGN: Observational, population-based registry study.SETTING: Data from the nationwide Swedish Registry of Gallstone Surgery and ERCP (GallRiks).PATIENTS: From May 1, 2005, to December 31, 2011, 63 685 cholecystectomies (laparoscopic and open) and 37 860 ERCPs have been prospectively registered in GallRiks.INTERVENTIONS: Cholecystectomies, laparoscopic or conventional, as well as ERCP in a population-based setting.MAIN OUTCOME MEASURES: Registrations of all cholecystectomies and ERCPs are performed online by the surgeon or endoscopist. Thirty-day follow-up of both gallstone surgery and ERCP is mandatory, as is an additional 6-month follow-up of the cholecystectomies. Scores on the 36-Item Short Form Health Survey are registered preoperatively and 6 months postoperatively in elective cholecystectomies at selected units.RESULTS: The 30-day overall complication rate is 6.1% in elective cholecystectomy, 11.2% in urgent cholecystectomy, and 12.0% following ERCP. The use of antibiotic and thromboembolic prophylaxis in elective laparoscopic cholecystectomy in Sweden has decreased by 8.7% and 17.8% (2006-2011), respectively, mainly owing to presentation of GallRiks data both at meetings and published in peer-reviewed publications. The large database has also enabled several research projects, including one demonstrating that the intention to perform intraoperative cholangiography reduced the risk of death after cholecystectomy. The database has reached greater than 90% national coverage and is continuously validated.CONCLUSIONS: GallRiks is a validated national quality registry for gallstone surgery and ERCP, serving as a base for audit of gallstone disease treatment. It also provides a database for clinical research.
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- Fawcett, William J., et al.
(författare)
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Perioperative Opioids-Reclaiming Lost Ground
- 2021
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Ingår i: JAMA Surgery. - : American Medical Association. - 2168-6254 .- 2168-6262. ; 156:11, s. 997-998
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Tidskriftsartikel (refereegranskat)
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- Hjorth, Stephan, 1953, et al.
(författare)
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Reoperations After Bariatric Surgery in 26 Years of Follow-up of the Swedish Obese Subjects Study.
- 2019
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Ingår i: JAMA surgery. - : American Medical Association (AMA). - 2168-6262 .- 2168-6254. ; 154:4, s. 319-326
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Tidskriftsartikel (refereegranskat)abstract
- Bariatric surgery is an established treatment for obesity, but knowledge on the long-term incidence of revisional surgery is scarce.To determine the incidence and type of revisional surgery after bariatric surgery in 26 years of follow-up of participants in the Swedish Obese Subjects (SOS) study.The SOS study is a prospective nonrandomized controlled study comparing bariatric surgery (banding, vertical banded gastroplasty [VBG], and gastric bypass [GBP]) with usual care. The bariatric surgeries in the SOS study were conducted at 25 public surgical departments in Sweden. Men with body mass index values of 34 or higher and women with body mass indexes of 38 or higher were recruited to the surgery group of the SOS study between September 1, 1987, and January 31, 2001, and follow-up continued until December 31, 2014. Data analysis occurred from November 2016 to April 2018.Banding, VBG, or GBP.Revisional surgeries, analyzed using data from questionnaires, hospital records, and the Swedish National Patient register through December 31, 2014.A total of 2010 participants underwent surgery. The age range was 37 to 60 years. A total of 376 participants underwent banding (18.7%), while 1365 had VBG (67.9%) and 266 had GBP (13.2%). During a median follow-up of 19 years, 559 participants (27.8%) underwent first-time revisional surgery, including 354 conversions to other bariatric procedures (17.6%), 114 corrective surgeries (5.6%), and 91 reversals to normal anatomy (4.5%). Revisional surgeries (conversions, corrective surgery, and reversals) were common after banding (153 of 376 [40.7%]) and VBG (386 of 1365 [28.3%]) but relatively rare after GBP (20 of 266 [7.5%]). Patients who had banding and VBG primarily underwent conversions to GBP or reversals. Incidence of reversals was 5 times higher after banding than after VBG (40.7% vs 7.5%; unadjusted hazard ratio, 5.19 [95% CI, 3.43-7.87]; P<.001). Corrective surgeries were equally common irrespective of the index surgery (72 of 1365 patients who had VBG [5.3%]; 23 of 376 patients who had banding [6.1%]; 19 of 266 patients who had GBP [7.1%]). Revisional surgery indications, including inadequate weight loss, band-associated complications (migration, stenosis, and slippage), staple-line disruptions, and postsurgical morbidity, varied depending on index surgery subgroup. Most corrections occurred within the first 10 years, whereas conversions and reversals occurred over the entire follow-up period.Corrective surgeries occur mainly within the first 10 years and with similar incidences across all 3 surgical subgroups, but indications varied. Conversions (mainly to GBP) and reversals occurred after many years and were most frequent after banding and VBG, reflecting a higher overall revisional surgery demand after these operations.
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- Hälleberg Nyman, Maria, 1968-, et al.
(författare)
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Association Between Functional Health Literacy and Postoperative Recovery, Health Care Contacts, and Health-Related Quality of Life Among Patients Undergoing Day Surgery Secondary Analysis of a Randomized Clinical Trial
- 2018
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Ingår i: JAMA Surgery. - : American Medical Association. - 2168-6254 .- 2168-6262. ; 153:8, s. 738-745
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Tidskriftsartikel (refereegranskat)abstract
- Importance: Day surgery puts demands on the patients to manage their own recovery at home according to given instructions. Low health literacy levels are shown to be associated with poorer health outcomes.Objective: To describe functional health literacy levels among patients in Sweden undergoing day surgery and to describe the association between functional health literacy (FHL) and health care contacts, quality of recovery (SwQoR), and health-related quality of life.Design, Setting, and Participants: This observational study was part of a secondary analysis of a randomized clinical trial of patients undergoing day surgery and was performed in multiple centers from October 2015 to July 2016 and included 704 patients.Main Outcomes and Measures: The primary end point was SwQoR in the FHL groups 14 days after surgery. Secondary end points were health care contacts, EuroQol-visual analog scales, and the Short Form (36) Health Survey in the FHL groups.Results: Of 704 patients (418 [59.4%] women; mean [SD] age with inadequate or problematic FHL levels, 47 [16] years and 49 [15.1], respectively), 427 (60.7%) reported sufficient FHL, 223 (31.7%) problematic FHL, and 54 (7.7%) inadequate FHL. The global score of SwQoR indicated poor recovery in both inadequate (37.4) and problematic (22.9) FHL. There was a statistically significant difference in the global score of SwQoR (SD) between inadequate (37.4 [34.7]) and sufficient FHL (17.7 [21.0]) (P < .001). The patients with inadequate or problematic FHL had a lower health-related quality of life than the patients with sufficient FHL in terms of EuroQol-visual analog scale scores (mean [SD], 73 [19.1], 73 [19.1], and 78 [17.4], respectively; P = .008), physical function (mean [SD], 72 [22.7], 75 [23.8], and 81 [21.9], respectively; P < .001), bodily pain (mean [SD], 51 [28.7], 53 [27.4], and 61 [27.0], respectively; P = .001), vitality (mean [SD], 50 [26.7], 56 [23.5], and 62 [25.4], respectively; P < .001), social functioning (mean [SD], 73 [28.2], 81 [21.8], and 84 [23.3], respectively; P = .004), mental health (mean [SD], 65 [25.4], 73 [21.2], and 77 [21.2], respectively; P < .001), and physical component summary (mean [SD], 41 [11.2], 42 [11.3], and 45 [10.1], respectively; P = .004). There were no differences between the FHL groups regarding health care contacts.Conclusions and Relevance: Inadequate FHL in patients undergoing day surgery was associated with poorer postoperative recovery and a lower health-related quality of life. Health literacy is a relevant factor to consider for optimizing the postoperative recovery in patients undergoing day surgery.
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31. |
- Jones, Robert P., et al.
(författare)
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Patterns of Recurrence After Resection of Pancreatic Ductal Adenocarcinoma : A Secondary Analysis of the ESPAC-4 Randomized Adjuvant Chemotherapy Trial
- 2019
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Ingår i: JAMA Surgery. - : AMER MEDICAL ASSOC. - 2168-6254 .- 2168-6262. ; 154:11, s. 1038-1048
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Tidskriftsartikel (refereegranskat)abstract
- Importance: The patterns of disease recurrence after resection of pancreatic ductal adenocarcinoma with adjuvant chemotherapy remain unclear.Objective: To define patterns of recurrence after adjuvant chemotherapy and the association with survival.Design, Setting, and Participants: Prospectively collected data from the phase 3 European Study Group for Pancreatic Cancer 4 adjuvant clinical trial, an international multicenter study. The study included 730 patients who had resection and adjuvant chemotherapy for pancreatic cancer. Data were analyzed between July 2017 and May 2019.Interventions: Randomization to adjuvant gemcitabine or gemcitabine plus capecitabine.Main Outcomes and Measures: Overall survival, recurrence, and sites of recurrence.Results: Of the 730 patients, median age was 65 years (range 37-81 years), 414 were men (57%), and 316 were women (43%). The median follow-up time from randomization was 43.2 months (95% CI, 39.7-45.5 months), with overall survival from time of surgery of 27.9 months (95% CI, 24.8-29.9 months) with gemcitabine and 30.2 months (95% CI, 25.8-33.5 months) with the combination (HR, 0.81; 95% CI, 0.68-0.98; P=.03). The 5-year survival estimates were 17.1% (95% CI, 11.6%-23.5%) and 28.0% (22.0%-34.3%), respectively. Recurrence occurred in 479 patients (65.6%); another 78 patients (10.7%) died without recurrence. Local recurrence occurred at a median of 11.63 months (95% CI, 10.05-12.19 months), significantly different from those with distant recurrence with a median of 9.49 months (95% CI, 8.44-10.71 months) (HR, 1.21; 95% CI, 1.01-1.45; P=.04). Following recurrence, the median survival was 9.36 months (95% CI, 8.08-10.48 months) for local recurrence and 8.94 months (95% CI, 7.82-11.17 months) with distant recurrence (HR, 0.89; 95% CI, 0.73-1.09; P=.27). The median overall survival of patients with distant-only recurrence (23.03 months; 95% CI, 19.55-25.85 months) or local with distant recurrence (23.82 months; 95% CI, 17.48-28.32 months) was not significantly different from those with only local recurrence (24.83 months; 95% CI, 22.96-27.63 months) (P=.85 and P=.35, respectively). Gemcitabine plus capecitabine had a 21% reduction of death following recurrence compared with monotherapy (HR, 0.79; 95% CI, 0.64-0.98; P=.03).Conclusions and Relevance: There were no significant differences between the time to recurrence and subsequent and overall survival between local and distant recurrence. Pancreatic cancer behaves as a systemic disease requiring effective systemic therapy after resection.Trial Registration: ClinicalTrials.gov identifier: NCT00058201, EudraCT 2007-004299-38, and ISRCTN 96397434. This secondary analysis of a randomized clinical trial investigates patterns of recurrence after adjuvant chemotherapy in pancreatic cancer and the association with survival.
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- Karlsson, Cecilia, 1968, et al.
(författare)
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Gastric Bypass vs Diet and Cardiovascular Risk Factors A Nonrandomized Controlled Trial
- 2024
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Ingår i: JAMA SURGERY. - 2168-6254 .- 2168-6262.
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Tidskriftsartikel (refereegranskat)abstract
- IMPORTANCE Roux-en-Y gastric bypass (RYGB) is associated with reduced cardiovascular (CV) risk factors, morbidity, and mortality. Whether these effects are specifically induced by the surgical procedure or the weight loss is unclear. OBJECTIVE To compare 6-week changes in CV risk factors in patients with obesity undergoing matching caloric restriction and weight loss by RYGB or a very low-energy diet (VLED). DESIGN, SETTING, AND PARTICIPANTS This nonrandomized controlled study (Impact of Body Weight, Low Calorie Diet, and Gastric Bypass on Drug Bioavailability, Cardiovascular Risk Factors, and Metabolic Biomarkers [COCKTAIL]) was conducted at a tertiary care obesity center in Norway. Participants were individuals with severe obesity preparing for RYGB or a VLED. Recruitment began February 26, 2015; the first patient visit was on March 18, 2015, and the last patient visit (9-week follow-up) was on August 9, 2017. Data were analyzed from April 30, 2021, through June 29, 2023. INTERVENTIONS VLED alone for 6 weeks or VLED for 6 weeks after RYGB; both interventions were preceded by 3-week LED. MAIN OUTCOMES AND MEASURES Between-group comparisons of 6-week changes in CV risk factors. RESULTS Among 78 patients included in the analyses, the mean (SD) age was 47.5 (9.7) years; 51 (65%) were women, and 27 (35%) were men. Except for a slightly higher mean (SD) body mass index of 44.5 (6.2) in the RYGB group (n = 41) vs 41.9 (5.4) in the VLED group (n = 37), baseline demographic and clinical characteristics were similar between groups. Major atherogenic blood lipids (low-density lipoprotein cholesterol, non-high-density lipoprotein cholesterol, apolipoprotein B, lipoprotein[a]) were reduced after RYGB in comparison with VLED despite a similar fat mass loss. Mean between-group differences were -17.7 mg/dL (95% CI, -27.9 to -7.5), -17.4 mg/dL (95% CI, -29.8 to -5.0) mg/dL, -9.94 mg/dL (95% CI, -15.75 to -4.14), and geometric mean ratio was 0.55 U/L (95% CI, 0.42 to 0.72), respectively. Changes in glycemic control and blood pressure were similar between groups. CONCLUSIONS AND RELEVANCE This study found that clinically meaningful reductions in major atherogenic blood lipids were demonstrated after RYGB, indicating that RYGB may reduce CV risk independent of weight loss.
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- Kristensson, Felipe M., et al.
(författare)
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Breast Cancer Risk After Bariatric Surgery and Influence of Insulin Levels: A Nonrandomized Controlled Trial
- 2024
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Ingår i: JAMA Surgery. - 2168-6254 .- 2168-6262.
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Tidskriftsartikel (refereegranskat)abstract
- Importance: Obesity and insulin are risk factors for breast cancer, and retrospective studies suggest bariatric surgery reduces breast cancer risk in women. However, long-term prospective data on breast cancer risk after bariatric surgery and the role of baseline insulin levels are lacking. Objective: To examine if bariatric surgery is associated with breast cancer incidence in women and if treatment benefit is modified by baseline insulin levels. Design, Setting, and Participants: The Swedish Obese Subjects (SOS) study was a nonrandomized intervention trial designed to investigate the long-term effects of bariatric surgery on obesity-related mortality and morbidity. Study recruitment took place between 1987 and 2001, and median (IQR) follow-up time was 23.9 years (20.1-27.1) years. The study was conducted at 25 public surgical departments and 480 primary health care centers in Sweden and included 2867 women aged 37 to 60 years and with body mass index 38 or greater (calculated as weight in kilograms divided by height in meters squared). Intervention: In the surgery group (n = 1420), 260 women underwent gastric banding, 970 vertical banded gastroplasty, and 190 gastric bypass. The remaining contemporaneously matched control individuals (n = 1447) received usual obesity care. Main Outcome and Measures: Breast cancer, the main outcome of this secondary report, was not a predefined outcome in the SOS study. Breast cancer events were identified in the Swedish National Cancer Registry. Results: The study population comprised 2867 women with a mean (SD) age of 48.0 (6.2) years. During follow-up, there were 154 breast cancer events, 66 in the surgery group and 88 in the usual care group, and a decreased risk of breast cancer was observed in the bariatric surgery group (hazard ratio [HR], 0.68; 95% CI, 0.49-0.94; P =.019; adjusted HR, 0.72; 95% CI, 0.52-1.01; P =.06). The surgical treatment benefit on breast cancer risk was greater in women with baseline insulin levels above the median 15.8 μIU/L (HR, 0.48; 95% CI, 0.31-0.74; P =.001; adjusted HR, 0.55; 95% CI, 0.35-0.86; P =.008) compared to those below (HR, 0.95; 95% CI, 0.59-1.53; P =.84; adjusted HR, 1.01; 95% CI, 0.61-1.66; P =.97; interaction P =.02). Conclusions and Relevance: This prospective clinical trial indicated a reduced risk of breast cancer after bariatric surgery in women with obesity. The surgical treatment benefit was predominantly seen in women with hyperinsulinemia.
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- Ljungqvist, Olle, 1954-, et al.
(författare)
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Enhanced Recovery After Surgery : A Review
- 2017
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Ingår i: JAMA Surgery. - : American Medical Association. - 2168-6254 .- 2168-6262. ; 152:3, s. 292-298
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Forskningsöversikt (refereegranskat)abstract
- IMPORTANCE: Enhanced Recovery After Surgery (ERAS) is a paradigm shift in perioperative care, resulting in substantial improvements in clinical outcomes and cost savings.OBSERVATIONS: Enhanced Recovery After Surgery is a multimodal, multidisciplinary approach to the care of the surgical patient. Enhanced Recovery After Surgery process implementation involves a team consisting of surgeons, anesthetists, an ERAS coordinator (often a nurse or a physician assistant), and staff from units that care for the surgical patient. The care protocol is based on published evidence. The ERAS Society, an international nonprofit professional society that promotes, develops, and implements ERAS programs, publishes updated guidelines for many operations, such as evidence- based modern care changes from overnight fasting to carbohydrate drinks 2 hours before surgery, minimally invasive approaches instead of large incisions, management of fluids to seek balance rather than large volumes of intravenous fluids, avoidance of or early removal of drains and tubes, early mobilization, and serving of drinks and food the day of the operation. Enhanced Recovery After Surgery protocols have resulted in shorter length of hospital stay by 30% to 50% and similar reductions in complications, while readmissions and costs are reduced. The elements of the protocol reduce the stress of the operation to retain anabolic homeostasis. The ERAS Society conducts structured implementation programs that are currently in use in more than 20 countries. Local ERAS teams from hospitals are trained to implement ERAS processes. Audit of process compliance and patient outcomes are important features. Enhanced Recovery After Surgery started mainly with colorectal surgery but has been shown to improve outcomes in almost all major surgical specialties.CONCLUSIONS AND RELEVANCE: Enhanced Recovery After Surgery is an evidence- based care improvement process for surgical patients. Implementation of ERAS programs results in major improvements in clinical outcomes and cost, making ERAS an important example of value- based care applied to surgery.
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- Ljungqvist, Olle, 1954-, et al.
(författare)
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Opportunities and Challenges for the Next Phase of Enhanced Recovery After Surgery : A Review
- 2021
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Ingår i: JAMA Surgery. - : American Medical Association. - 2168-6254 .- 2168-6262. ; 56:8, s. 775-784
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Forskningsöversikt (refereegranskat)abstract
- Importance: Enhanced Recovery After Surgery (ERAS) is a global surgical quality improvement initiative now firmly entrenched within the field of perioperative care. Although ERAS is associated with significant clinical outcome improvements and cost savings in numerous surgical specialties, several opportunities and challenges deserve further discussion.Observations: Uptake and implementation of ERAS Society guidelines, together with ERAS-related research, have increased exponentially since the inception of the ERAS movement. Opportunities to further improve patient outcomes include addressing frailty, optimizing nutrition, prehabilitation, correcting preoperative anemia, and improving uptake of ERAS worldwide, including in low- and middle-income countries. Challenges facing enhanced recovery today include implementation, carbohydrate loading, reversal of neuromuscular blockade, and bowel preparation. The COVID-19 pandemic poses both a challenge and an opportunity for ERAS.Conclusions and Relevance: To date, ERAS has achieved significant benefit for patients and health systems; however, improvements are still needed, particularly in the areas of patient optimization and systematic implementation. During this time of global crisis, the ERAS method of delivering care is required to take surgery and anesthesia to the next level and bring improvements in outcomes to both patients and health systems.
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- Lof, Sanne, et al.
(författare)
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Learning Curves of Minimally Invasive Distal Pancreatectomy in Experienced Pancreatic Centers
- 2023
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Ingår i: JAMA Surgery. - : AMER MEDICAL ASSOC. - 2168-6254 .- 2168-6262. ; 158:9, s. 927-933
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Tidskriftsartikel (refereegranskat)abstract
- IMPORTANCE Understanding the learning curve of a new complex surgical technique helps to reduce potential patient harm. Current series on the learning curve of minimally invasive distal pancreatectomy (MIDP) are mostly small, single-center series, thus providing limited data. OBJECTIVE To evaluate the length of pooled learning curves of MIDP in experienced centers. DESIGN, SETTING, AND PARTICIPANTS This international, multicenter, retrospective cohort study included MIDP procedures performed from January 1, 2006, through June 30, 2019, in 26 European centers from 8 countries that each performed more than 15 distal pancreatectomies annually, with an overall experience exceeding 50 MIDP procedures. Consecutive patients who underwent elective laparoscopic or robotic distal pancreatectomy for all indications were included. Data were analyzed between September 1, 2021, and May 1, 2022. EXPOSURES The learning curve for MIDP was estimated by pooling data from all centers. MAIN OUTCOMES AND MEASURES The learning curvewas assessed for the primary textbook outcome (TBO), which is a composite measure that reflects optimal outcome, and for surgical mastery. Generalized additive models and a 2-piece linear model with a break point were used to estimate the learning curve length of MIDP. Case mix-expected probabilities were plotted and compared with observed outcomes to assess the association of changing case mix with outcomes. The learning curve also was assessed for the secondary outcomes of operation time, intraoperative blood loss, conversion to open rate, and postoperative pancreatic fistula grade B/C. RESULTS From a total of 2610 MIDP procedures, the learning curve analysis was conducted on 2041 procedures (mean [SD] patient age, 58 [15.3] years; among 2040 with reported sex, 1249 were female [61.2%] and 791 male [38.8%]). The 2-piece model showed an increase and eventually a break point for TBO at 85 procedures (95% CI, 13-157 procedures), with a plateau TBO rate at 70%. The learning-associated loss of TBO rate was estimated at 3.3%. For conversion, a break point was estimated at 40 procedures (95% CI, 11-68 procedures); for operation time, at 56 procedures (95% CI, 35-77 procedures); and for intraoperative blood loss, at 71 procedures (95% CI, 28-114 procedures). For postoperative pancreatic fistula, no break point could be estimated. CONCLUSION AND RELEVANCE In experienced international centers, the learning curve length of MIDP for TBO was considerable with 85 procedures. These findings suggest that although learning curves for conversion, operation time, and intraoperative blood loss are completed earlier, extensive experience may be needed to master the learning curve of MIDP.
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- Olsson, Karl Wilhelm, 1985-, et al.
(författare)
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Outcomes after endovascular aortic intervention in patients with connective tissue disease
- 2023
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Ingår i: JAMA Surgery. - : American Medical Association (AMA). - 2168-6254 .- 2168-6262. ; 158:8, s. 832-839
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Tidskriftsartikel (refereegranskat)abstract
- Importance: Endovascular treatment is not recommended for aortic pathologies in patients with connective tissue diseases (CTDs) other than in redo operations and as bridging procedures in emergencies. However, recent developments in endovascular technology may challenge this dogma.Objective: To assess the midterm outcomes of endovascular aortic repair in patients with CTD.Design, Setting, and Participants: For this descriptive retrospective study, data on demographics, interventions, and short-term and midterm outcomes were collected from 18 aortic centers in Europe, Asia, North America, and New Zealand. Patients with CTD who had undergone endovascular aortic repair from 2005 to 2020 were included. Data were analyzed from December 2021 to November 2022.Exposure: All principal endovascular aortic repairs, including redo surgery and complex repairs of the aortic arch and visceral aorta.Main Outcomes and Measures: Short-term and midterm survival, rates of secondary procedures, and conversion to open repair.Results: In total, 171 patients were included: 142 with Marfan syndrome, 17 with Loeys-Dietz syndrome, and 12 with vascular Ehlers-Danlos syndrome (vEDS). Median (IQR) age was 49.9 years (37.9-59.0), and 107 patients (62.6%) were male. One hundred fifty-two (88.9%) were treated for aortic dissections and 19 (11.1%) for degenerative aneurysms. One hundred thirty-six patients (79.5%) had undergone open aortic surgery before the index endovascular repair. In 74 patients (43.3%), arch and/or visceral branches were included in the repair. Primary technical success was achieved in 168 patients (98.2%), and 30-day mortality was 2.9% (5 patients). Survival at 1 and 5 years was 96.2% and 80.6% for Marfan syndrome, 93.8% and 85.2% for Loeys-Dietz syndrome, and 75.0% and 43.8% for vEDS, respectively. After a median (IQR) follow-up of 4.7 years (1.9-9.2), 91 patients (53.2%) had undergone secondary procedures, of which 14 (8.2%) were open conversions.Conclusions and Relevance: This study found that endovascular aortic interventions, including redo procedures and complex repairs of the aortic arch and visceral aorta, in patients with CTD had a high rate of early technical success, low perioperative mortality, and a midterm survival rate comparable with reports of open aortic surgery in patients with CTD. The rate of secondary procedures was high, but few patients required conversion to open repair. Improvements in devices and techniques, as well as ongoing follow-up, may result in endovascular treatment for patients with CTD being included in guideline recommendations.
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- Pantiora, Eirini, et al.
(författare)
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Magnetic Seed vs Guidewire Breast Cancer Localization With Magnetic Lymph Node DetectionA Randomized Clinical Trial
- 2024
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Ingår i: JAMA SURGERY. - : American Medical Association (AMA). - 2168-6254 .- 2168-6262. ; 159:3, s. 239-246
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Tidskriftsartikel (refereegranskat)abstract
- IMPORTANCE Guidewires have been the standard for breast lesion localization but pose operative and logistic challenges. Paramagnetic seeds have shown promising results, but to the authors' knowledge, no randomized comparison has been performed.OBJECTIVE To determine whether the combination of a paramagnetic seed and superparamagnetic iron oxide (SPIO) is equivalent to guidewire and SPIO for breast cancer localization and sentinel lymph node detection (SLND).DESIGN, SETTING, AND PARTICIPANTS This was a phase 3, pragmatic, equivalence, 2-arm, open-label, randomized clinical trial conducted at 3 university and/or community hospitals in Sweden from May 2018 to May 2022. Included in the study were patients with early breast cancer planned for breast conservation and SLND. Study data were analyzed July to November 2022.INTERVENTIONS Participants were randomly assigned 1:1 to a paramagnetic seed or a guidewire. All patients underwent SLND with SPIO.MAIN OUTCOMES AND MEASURES Re-excision rate and resection ratio (defined as actual resection volume / optimal resection volume).RESULTS A total of 426 women (median [IQR] age, 65 [56-71] years; median [IQR] tumor size, 11 [8-15] mm) were included in the study. The re-excision rate was 2.90% (95% CI, 1.60%-4.80%), and the median (IQR) resection ratio was 1.96 (1.15-3.44). No differences were found between the guidewire and the seed in re-excisions (6 of 211 [2.84%] vs 6 of 209 [2.87%]; difference, -0.03%; 95% CI, -3.20% to 3.20%; P = .99) or resection ratio (median, 1.93; IQR, 1.18-3.43 vs median, 2.01; IQR, 1.11-3.47; P = .70). Overall SLN detection was 98.6% (95% CI, 97.1%-99.4%) with no differences between arms (203 of 207 [98.1%] vs 204 of 206 [99.0%]; difference, -0.9%; 95% CI, -3.6% to 1.8%; P = .72). More failed localizations occurred with the guidewire (21 of 208 [10.1%] vs 4 of 215 [1.9%]; difference, 8.2%; 95% CI, 3.3%-13.2%; P < .001). Median (IQR) time to specimen excision was shorter for the seed (15 [10-22] minutes vs 18 [12-30] minutes; P = .01), as was the total operative time (69 [56-86] minutes vs 75.5 [59-101] minutes; P = .03). The experience of surgeons, radiologists, and surgical coordinators was better with the seed.CONCLUSIONS AND RELEVANCE The combination of SPIO and a paramagnetic seed performed comparably with SPIO and guidewire for breast cancer conserving surgery and resulted in more successful localizations, shorter operative times, and better experience.
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