Sulfonylureas (not metformin) improve survival of patients with diabetes and resectable pancreatic adenocarcinoma.

Patients with pancreatic adenocarcinoma have an increased propensity for diabetes. Recent studies suggest patients with diabetes and pancreatic adenocarcinoma treated with metformin have increased survival. This study was undertaken to determine whether metformin use is associated with increased survival in patients with pancreatic adenocarcinoma. METHODS: Patients who underwent pancreaticoduodenectomy for pancreatic adenocarcinoma from 1991 to 2013 were included in this study. Survival was evaluated by Kaplan-Meier analysis. Median data are reported. Significance was accepted with 95% probability. RESULTS: Of 414 patients undergoing pancreaticoduodenectomy for pancreatic adenocarcinoma, 132 (32%) were diabetic. Of patients with diabetes, 35 (27%) were diet-controlled, 34 (26%) were treated with insulin alone, 18 (14%) were treated with metformin alone, 14 (10%) were treated with sulfonylureas alone, 7 (5%) were taking sulfonylureas with insulin, and 24 (18%) patients were taking metformin with sulfonylureas and/or insulin. Patients with/without diabetes not taking sulfonylureas had survival of 16.4 months compared with patients taking sulfonylureas who achieved survival of 27.5 months after undergoing pancreaticoduodenectomy (P<0.05). CONCLUSIONS: Patients taking sulfonylureas with or without other therapy had improved survival compared with patients not taking sulfonylureas after pancreaticoduodenectomy. Metformin does not seem to be beneficial for patients with resectable disease, but may be beneficial for patients with unresectable and/or metastatic disease as shown in prior studies. The use of sulfonylureas is associated with a survival benefit for patients undergoing resection for pancreatic adenocarcinoma. Tumor staging and margin status continue to be the overriding predictors of survival in patients with resectable pancreatic adenocarcinoma, not metformin therapy.

High-volume surgeons vs high-volume hospitals: are best outcomes more due to who or where?

BACKGROUND: High-volume hospitals are purported to provide "best" outcomes. We undertook this study to evaluate the outcomes after pancreaticoduodenectomy when high-volume surgeons relocate to a low-volume hospital (ie, no pancreaticoduodenectomies in >5 years). METHODS: Outcomes after the last 50 pancreaticoduodenectomies undertaken at a high-volume hospital in 2012 (ie, before relocation) were compared with the outcomes after the first 50 pancreaticoduodenectomies undertaken at a low-volume hospital (ie, after relocation) in 2012 to 2013. RESULTS: Patients undergoing pancreaticoduodenectomies at a high-volume vs a low-volume hospital were not different by age or sex. Patients who underwent pancreaticoduodenectomy at the low-volume hospital had shorter operations with less blood loss, spent less time in the intensive care unit, and had shorter length of stay (P < .05 for each); 30-day mortality and 30-day readmission rates were not different. CONCLUSIONS: The salutary benefits of undertaking pancreaticoduodenectomy at a high-volume hospital are transferred to a low-volume hospital when high-volume surgeons relocate. The "best" results follow high-volume surgeons.

Over 250 Laparoendoscopic Single Site (LESS) Fundoplications: Lessons Learned.

Laparoendoscopic single site (LESS) surgery is a more recent advance in the progression of minimally invasive surgery. This study was undertaken to assess lessons learned after our first 250 LESS fundoplications for gastroesophageal reflux disease (GERD). All patients undergoing LESS fundoplications were prospectively followed from 2008 to 2014. Patients scored the frequency/severity of their symptoms before/after LESS fundoplication using a Likert scale (0 = never/not bothersome to 10 = always/very bothersome). Patients also scored satisfaction with their incision using a Likert scale (1 = revolting to 10 = beautiful). A total of 300 patients undergoing LESS fundoplication for GERD were not different by age or gender. Surgeons undertook 190 Nissen fundoplications and 110 Toupet fundoplications; 28 of which were "redo" fundoplications. Preoperative symptoms were notable, especially heartburn (frequency = 8, severity = 7). Symptoms were ameliorated postoperatively (e.g., heartburn: frequency = 0, severity = 0, P < 0.01). Postoperatively, patients scored satisfaction of their incisions with a median score of 10. Eighty-three per cent of patients were at least satisfied with their overall experience; 92 per cent would undergo the operation again knowing what they know now. Patients report significant symptom relief, high satisfaction, and excellent cosmesis after LESS fundoplication. LESS fundoplication safely ameliorates symptoms of GERD with pronounced satisfaction, in part, because of the cosmetic outcome (i.e., lack of scaring), and its application is encouraged.

Transoral incisionless fundoplication: is it as safe and efficacious as a Nissen or Toupet fundoplication?

Transoral incisionless fundoplication (TIF) was U.S. Food and Drug Administration-approved in 2007 to treat gastroesophageal reflux disease (GERD), but comparative data are lacking. This study was undertaken to compare outcomes for patients with GERD undergoing TIF versus laparoscopic Nissen or Toupet fundoplications. We undertook a case-controlled study of three cohorts of 20 patients undergoing TIF or laparoscopic Nissen or Toupet fundoplications from 2010 to 2013 controlling for age, body mass index, and preoperative DeMeester scores. All patients were prospectively followed. Median data are reported. Patients undergoing TIF had significantly shorter operative times (in minutes: 71 vs 119 and 85, respectively, P < 0.001) and length of stay (in days: 1, 2, and 1, respectively, P < 0.001). No matter the approach, patients reported dramatic and similar reduction in symptom frequency and severity (e.g., heartburn 8 to 0, P < 0.05). At follow-up, 83 per cent of patients after TIF, 80 per cent after Nissen, or 92 per cent after Toupet fundoplications had symptoms less than once per month (P = 0.12). TIF leads to dramatic symptom resolution, similar when compared with Nissen or Toupet fundoplications. TIF promotes shorter operative times and lengths of stay. Patient satisfaction and effective palliation of symptoms show that TIF is safe and efficacious in comparison to Nissen and Toupet fundoplications and support its continued application and evaluation.

External pancreatic duct stent reduces pancreatic fistula: a meta-analysis and systematic review.

BACKGROUND: Postoperative pancreatic fistula formation (POPF) remains one of the most common and detrimental complications following pancreaticojejunostomy (PJ). The aim of this meta-analysis is to analyze the efficacy of external pancreatic duct stent placement in preventing POPF formation following PJ. METHODS: The primary end-point was the incidence of POPF formation following pancreaticoduodenectomy (PD) in the presence and absence of external stent placement. Secondary outcomes examined were the incidence of perioperative mortality, delayed gastric emptying, postoperative wound infection, operative time, blood loss, and length of hospital stay. RESULTS: Four trials were included comprising 416 patients. External pancreatic duct stenting was found to reduce the incidence of both any grade POPF formation (OR 0.37, 95% CI = 0.23 to 0.58, p = 0.0001) and clinically significant (grade B or C) POPF formation (OR 0.50, 95% CI = 0.30 to 0.84, p = 0.0009) following PD. The use of an external stent was also found to significantly lessen length of hospital stay (SMD -0.39, 95% CI = -0.63 to -0.15, p = 0.001). CONCLUSIONS: This analysis has shown that external pancreatic duct stenting is indeed efficacious in the incidence of both any grade as well as clinically significant POPF formation following PD. Length of hospital stay was also found to be significantly less by external duct stenting.

The learning curve of laparoendoscopic single-Site (LESS) fundoplication: definable, short, and safe.

BACKGROUND AND OBJECTIVES: This study of laparoendoscopic single-site (LESS) fundoplication for gastroesophageal reflux disease was undertaken to determine the "learning curve" for implementing LESS fundoplication. METHODS: One hundred patients, 38% men, with a median age of 61 years and median body mass index of 26 kg/m(2) , underwent LESS fundoplications. The operative times, placement of additional trocars, conversions to "open" operations, and complications were compared among patient quartiles to establish a learning curve. Median data are reported. RESULTS: The median operative times and complications did not differ among 25-patient cohorts. Additional trocars were placed in 27% of patients, 67% of whom were in the first 25-patient cohort. Patients undergoing LESS fundoplication had a dramatic relief in the frequency and severity of all symptoms of reflux across all cohorts equally (P < .05), particularly for heartburn and regurgitation, without causing dysphagia. CONCLUSION: LESS fundoplication ameliorates symptoms of gastroesophageal reflux disease without apparent scarring. Notably, few operations required additional trocars after the first 25-patient cohort. Patient selection became more inclusive (eg, more "redo" fundoplications) with increasing experience, whereas operative times and complications remained relatively unchanged. The learning curve of LESS fundoplication is definable, short, and safe. We believe that patients will seek LESS fundoplication because of the efficacy and superior cosmetic outcomes; surgeons will need to meet this demand.

Late results after laparoscopic fundoplication denote durable symptomatic relief of gastroesophageal reflux disease.

BACKGROUND: Late outcomes after laparoscopic Nissen fundoplication are only now becoming available. This study was undertaken to document late outcomes after laparoscopic Nissen fundoplication. METHODS: Five hundred ten patients underwent laparoscopic Nissen fundoplication >10 years ago and were prospectively followed. Preoperatively and postoperatively, patients scored the frequency and severity of symptoms (from 0 = never/not bothersome to 10 = always/very bothersome). Symptom scores before and after fundoplication were compared. Median symptom scores are presented. RESULTS: Early after fundoplication, significant improvements were noted in the frequency and severity of symptoms (e.g., for heartburn, from 8 to 0 and from 8 to 0, respectively, P < .001 for each). Late after fundoplication, significant improvements were maintained in the palliation of symptoms (e.g., frequency and severity for heartburn, 2, 1; respectively). At latest follow-up, 89% of patients were pleased with their symptom resolution. CONCLUSIONS: With long-term follow-up, laparoscopic Nissen fundoplication durably and significantly palliates symptoms of gastroesophageal reflux disease. This trial promotes the application of laparoscopic Nissen fundoplication.