Digestive Surgery最新文献

Introduction: Although several clinical applications have reported the usefulness of the radical antegrade modular pancreatosplenectomy (RAMPS) procedure for left-sided pancreatic ductal adenocarcinoma, few studies have reported the advantages of RAMPS with respect to the local recurrence (LR) rate.

Methods: As of 2018, 68 and 62 patients underwent RAMPS and standard retrograde pancreatosplenectomy (SRPS). The first recurrence and all subsequent recurrence sites observed on images during a follow-up period and/or chemotherapy. The clinical variables are collected retrospectively.

Results: LR only was found in 5 patients in the RAMPS group (5/68, 7.3%) and in 15 patients in the SRPS group (15/62, 24.2%; p = 0.008) as the first recurrence site. Any chemotherapies were not a risk factor for the incidence of LR. The 5-year cumulative LR rate was significantly lower in patients in the RAMPS group compared with those in the SRPS group (23.6% vs. 49.6%; p = 0.019). The 5-year overall survival was 42.2% in the RAMPS group and 33.0% in the SRPS group (p = 0.251).

Conclusion: The RAMPS procedure for left-sided pancreatic ductal adenocarcinoma may reduce the LR, cumulative LR rates.

Minimally invasive spleen-preserving distal pancreatectomy (SPDP) is technically challenging, and only a few reports have described surgical approaches for minimally invasive SPDP. This report demonstrates our novel gastrohepatic ligament approach in robotic SPDP with preservation of the splenic vessels (the superior window approach in the Kimura technique). Our gastrohepatic ligament approach for robotic SPDP included four steps. First, the gastrohepatic ligament was divided extensively, and the pancreas was confirmed (step 1). In this step, we did not lift the stomach, nor did we divide the gastrocolic ligament. Next, the superior and inferior borders of the pancreas were dissected, and the tunneling of the pancreas on the superior mesenteric vein was performed (step 2). Following the division of the pancreas (step 3), the pancreatic body and tail were dissected from the medial to the lateral side with preservation of the splenic vessels (step 4). Using this approach, the pancreas can be directly accessed via the gastrohepatic ligament route and dissected without division of the gastrocolic ligament or retraction of the stomach. The present approach for robotic SPDP preserves splenic vessels, facilitating easy access to the pancreas with minimal dissection, and may be optional in selected patients, including those with low body mass index.

Introduction: The impact of surgery on nutritional status, pancreatic function, and symptoms of patients affected by chronic pancreatitis (CP) has not been unequivocally determined. This study aimed to evaluate clinical follow-up after surgery for CP in an Italian-Austrian population.

Materials and methods: Patients operated for CP at two high-volume centers between 2000 and 2018 were analyzed. The following parameters were compared between the pre- and postoperative period: nutritional status, endocrine and exocrine pancreatic functions, and chronic pain.

Results: Overall, 186 patients underwent surgery for CP. Among these, 68 (40%) answered a specific follow-up questionnaire. The body mass index showed a significant increase between pre- and postoperative assessments (21.1 vs. 22.5 p = 0.003). Furthermore, a 60% decrease in the prevalence of chronic pain (81 vs. 21%, p < 0.001) was observed. On the contrary, both exocrine and endocrine pancreatic functions pointed toward a worsening after surgery, with consistent higher rates of patients presenting with diabetes mellitus, as well as patients requiring insulin therapy and oral intake of pancreatic enzymes. The analysis of body composition performed on 40 (24%) patients with a complete imaging pack revealed no significant change in the nutritional status after surgery.

Discussion/conclusion: Despite the good results observed in terms of pain relief, the surgical approach led to a consistent worsening of the global pancreatic function. No significant influence of surgery on the nutritional status of patients was detected.

Introduction: Most hepato-pancreato-biliary (HPB) procedures are still performed through open approach. Incisional hernia (IH) is one of the most common complications after open surgery. To date, published data on IH after HPB surgery are scarce; therefore, the aim of this study was to assess the current evidence regarding incidence, risk factors, and prevention.

Methods: Medline/PubMed (1946-2020), EMBASE (1947-2020), and the Cochrane library (1995-2020) were searched for studies on IH in open HPB surgery. Animal studies, editorials, letters, reviews, comments, short case series and liver transplant, laparoscopic, or robotic procedures were excluded. The protocol was registered with PROSPERO (CRD42020163296).

Results: A total of 5,079 articles were retrieved. Eight studies were finally included for the analysis. The incidence of IH after HPB surgery ranges from 7.7% to 38.8%. The identified risk factors were body mass index, surgical site infection, ascites, Mercedes or reversed T incisions, and previous IH. Prophylactic mesh might be safe and effective.

Conclusions: IH after open HPB surgery is still an important matter. Some of the risk factors are specific for the HPB operations and the incision type should be carefully considered. Randomized controlled trials are required to confirm the role of prophylactic mesh after HPB operations.

Introduction: Despite progressive improvements in technical skills and instruments that have facilitated surgeons performing intracorporeal gastro-jejunal and jejuno-jejunal anastomoses, one of the big challenging tasks is handsewn knot tying. We analysed the better way to fashion a handsewn intracorporeal enterotomy closure after a stapled anastomosis.

Methods: All 579 consecutive patients from January 2009 to December 2019 who underwent minimally invasive partial gastrectomy for gastric cancer were retrospectively analysed. Different ways to fashion intracorporeal anastomoses were investigated: robotic versus laparoscopic approach; laparoscopic high definition versus three-dimensional versus 4K technology; single-layer versus double-layer enterotomies. Double-layer enterotomies were analysed layer by layer, comparing running versus interrupted suture; the presence versus absence of deep corner suture; and type of suture thread.

Results: Significantly lower rates of bleeding (p = 0.011) and leakage (p = 0.048) from gastro-jejunal anastomosis were recorded in the double-layer group. Barbed suture thread was significantly associated with reduced intraluminal bleeding and leakage rates both in the first (p = 0.042 and p = 0.010) and second layer (p = 0.002 and p = 0.029).

Conclusions: Double-layer sutures using barbed suture thread both in first and second layer to fashion enterotomy closure result in lower intraluminal bleeding and anastomotic leak rates.

Introduction: Given that doubling time is an indicator of tumor growth, we assessed the usefulness of carcinoembryonic antigen doubling time (CEA-DT) in prognosis prediction after curative resection for locally recurrent rectal cancer.

Methods: During January 1986-December 2016, 33 patients with locally recurrent rectal cancer who underwent curative resection at our hospital were retrospectively reviewed. The primary endpoint was the 3-year recurrence-free survival (RFS) rate. The Kaplan-Meier method was used to compare RFS rates and evaluate univariate and multivariate analyses for factors associated with oncologic outcomes, including CEA-DT. CEA-DT was classified into 2 groups: the short and long CEA-DT groups.

Results: The 3-year overall survival and RFS rates were 62.6% and 42.4%, respectively. In multivariate analyses, CEA-DT was an independent risk factor for poor RFS. The 3-year RFS rate was significantly better in the long CEA-DT group than in the short CEA-DT group (58.8% vs. 25.0%, p = 0.0063).

Conclusion: CEA-DT is a useful prognostic factor that can be assessed before surgery for locally recurrent rectal cancer. Long CEA-DT may indicate a favorable prognosis. Contrarily, short CEA-DT is associated with poor prognosis; therefore, further treatment intervention is necessary for patients with short CEA-DT.

Background/objectives: Sarcopenia in pancreatic cancer may increase the risk of chemotherapy-related toxicity and post-operative morbidity. This systematic review and meta-analysis aimed to quantify the prevalence of sarcopenia in early stage pancreatic cancer.

Methods: Relevant studies were identified using Ovid Medline and Elsevier Embase. Pooled estimates of prevalence rates (percentages) and corresponding 95% confidence interval (CI) were computed using a random-effects model to allow for heterogeneity between studies.

Results: The majority of the 33 studies (n = 5,593 patients) included in this meta-analysis utilized computed tomography (CT)-derived measures for body composition assessment in patients undergoing pancreatic resection. Reported prevalence of sarcopenia varied between 14 and 74%, and the pooled prevalence was 39% (95% CI: 38-40%) Heterogeneity was considerable, however, (I2 = 93%) and did not improve significantly when controlling for assessment method, and use of pre-defined cut-offs for sarcopenia, limiting potential to evaluate the true impact of sarcopenia.

Conclusion: The ready availability of sequential CT offers a valuable opportunity for body composition assessment, but the quality of assessment and interpretation must improve before the impact of body composition on treatment-related outcomes and survival can be assessed. We suggest recommendations for the assessment of body composition for the design of future studies.

Background: Nowadays, minimally invasive intervention (MII) has largely replaced delayed open surgery in acute necrotizing pancreatitis (ANP). However, the timing of MII remains unclear. The present study investigated the effect of early versus delayed MII on complications in ANP.

Methods: Studies evaluating the impact of the timing of MII on complications in ANP patients were thoroughly searched on PubMed, Embase, Cochrane Library, and Web of Science from inception to June 2022. The primary outcome of interest was mortality. Secondary outcomes were the incidence of complications.

Results: Nine studies reporting 870 patients undergoing MII for ANP were included. No significant difference was found in mortality between the early and delayed intervention groups. In addition, the timing of MII was not associated with the incidence of new-onset respiratory failure, new-onset cardiovascular failure, new-onset renal failure, new-onset multiple organ failure, gastrointestinal fistula or perforation, pancreatic fistula, stent migration, bleeding, venous thrombosis, and new-onset pancreatic endocrine insufficiency. Notably, in the subgroup analysis of biliary and Asian ANP patients, early intervention was associated with a significantly higher risk of new-onset renal failure than delayed intervention.

Conclusions: Early intervention is safe and recommended only for patients with indications for intervention, such as infection.