Total pancreatectomy (TP) is a highly invasive procedure often performed in patients affected by anorexia, malabsorption, cachexia, and malnutrition, which are risk factors for bad surgical outcome and even may cause enhanced toxicity to chemo-radiotherapy. The role of nutritional therapies and the association between nutritional aspects and the outcome of patients who have undergone TP is described in some studies. The aim of this comprehensive review is to summarize the available recent evidence about the influence of nutritional factors in TP. Preoperative nutritional and metabolic assessment, but also intra-operative and post-operative nutritional therapies and their consequences, are analyzed in order to identify the aspects that can influence the outcome of patients undergoing TP. The results of this review show that preoperative nutritional status, sarcopenia, BMI and serum albumin are prognostic factors both in TP for pancreatic cancer to support chemotherapy, prevent recurrence and prolong survival, and in TP with islet auto-transplantation for chronic pancreatitis to improve postoperative glycemic control and obtain better outcomes. When it is possible, enteral nutrition is always preferable to parenteral nutrition, with the aim to prevent or reduce cachexia. Nowadays, the nutritional consequences of TP, including diabetes control, are improved and become more manageable.

α-Synuclein (α-syn) is a protein involved in neuronal degeneration. However, the family of synucleins has recently been demonstrated to be involved in the mechanisms of oncogenesis by selectively accelerating cellular processes leading to cancer. Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal human cancers, with a specifically high neurotropism. The molecular bases of this biological behavior are currently poorly understood. Here, α-synuclein was analyzed concerning the protein expression in PDAC and the potential association with PDAC neurotropism. Tumor (PDAC) and extra-tumor (extra-PDAC) samples from 20 patients affected by PDAC following pancreatic resections were collected at the General Surgery Unit, University of Pisa. All patients were affected by moderately or poorly differentiated PDAC. The amount of α-syn was compared between tumor and extra-tumor specimen (sampled from non-affected neighboring pancreatic areas) by using in situ immuno-staining with peroxidase anti-α-syn immunohistochemistry, α-syn detection by using Western blotting, and electron microscopy by using α-syn-conjugated immuno-gold particles. All the methods consistently indicate that each PDAC sample possesses a higher amount of α-syn compared with extra-PDAC tissue. Moreover, the expression of α-syn was much higher in those PDAC samples from tumors with perineural infiltration compared with tumors without perineural infiltration.

Laparoscopic cholecystectomy (LC) carried out within 3 days after an attack of non-severe acute gallstone pancreatitis (NSAGP) is recommended to reduce hospital stay and overall costs. Aim of the study was to evaluate factors that may delay a timely surgical management of NSAGP and the consequences of this deviation. We reviewed the charts of patients admitted for NSAGP and managed by LC during the last 14 years. A total number of 316 patients entered the study, 98 of whom underwent early LC. A comparison of pre-operative and outcome data from the group of patients undergone early LC and those who received a delayed LC (>3 days since the admission) was made. Only 31% of patients presenting with NSAGP were managed by early LC. Respect to these, patients who received a delayed LC were significantly older and had a greater occurrence of clinical signs suggesting common bile duct stones (CBDS). Stabilization of co-morbidities and need to investigate preoperatively the common duct were the main factors associated to the surgical delay. By comparing patients undergone early LC and those who received delayed LC, differences regarding conversion to open surgery (2% vs. 1.3%), need to explore the common bile duct (18.3% vs. 25.6%), CBDS clearance rates (94.4% vs. 94.6%), morbidity (8.1% vs. 8.7%), and postoperative hospital stay (3.9 vs. 3.2 days) were however statistically not significant. Several reasons could delay the 3-day recommendation for surgery in NSAGP. These include the need to achieve before surgery the control of age-related co morbidities, and the workup to investigate for common duct stones. A fast track program aiming to early surgery would be advisable for patients presenting with NSAGP. Compared to delayed LC, early LC appears to shorten overall hospitalization but it does not seem to have any clinical impact on the course.

Background: In Bismuth type III and IV Hilar Cholangiocarcinoma (III–IV HC), surgical resection is the only chance for long-term survival. As the surgical procedure is complex and Robotic-Assisted Surgery (RAS) may be particularly suitable in this setting, the aim of this study is to evaluate the potential benefits of RAS in III–IV HC in terms of post-operative outcomes. Methods: We conducted a systematic review using the PRISMA checklist for article selection. We searched the PubMed database and included only studies with clinical data about the treatment of III–IV HC using RAS. Results: A total of 12 papers involving 50 patients were included. All cases were Bismuth IIIa (n = 18), IIIb (n = 27) or IV type (n = 5) and underwent hepatectomy with biliary confluence resection and reconstruction. The mean operative time was 500 minutes with a conversion rate of 4%. The mean hospital stay was 12.2 days, and the morbidity and 30-day mortality rate were 61.9% and 2%, respectively. Over a mean follow up period of 10.1 months, 9/18 cases experienced recurrence (50%). Conclusions: RAS for III–IV HC is safe and feasible, at least if performed by experienced surgeons on selected cases. The oncological outcomes appear acceptable, given the aggressiveness of this pathology, but further studies are needed to fully elucidate the exact role of robotics in this setting.