Institut Mutualiste Montsouris classification is associated with postoperative portal vein thrombosis in laparoscopic liver resection.

Background: Laparoscopic liver resection (LLR) is a surgical procedure with varying degrees of difficulty depending on tumor status and surgical technique. Therefore, we aimed to evaluate the relationship between surgical difficulty levels and outcomes of LLR, particularly portal vein thrombosis (PVT).

Methods: We performed LLRs in 214 patients between January 2009 and December 2022.

Long-term survival analysis based on tumor location in patients with pancreatic ductal adenocarcinoma who underwent pancreatectomy following neoadjuvant chemoradiotherapy.

Background: The study aimed at assessing whether long-term survival outcomes were different based on tumor location in pancreatic ductal adenocarcinoma (PDAC) patients who underwent pancreatectomy following neoadjuvant chemoradiotherapy (CRT).

Methods: Following CRT, resection rate was 60.5% (286/473) and the resected patients had pancreatic head (n = 218), body (n = 34) and tail (n = 34) tumors.

A Case of Robot-Assisted Pylorus-Preserving Pancreatoduodenectomy for Branch-Duct Intraductal Papillary Mucinous Neoplasms Complicated With an Annular Pancreas.

Annular pancreas is a rare congenital anatomical anomaly, in which the pancreatic parenchyma surrounds the descending duodenum. Generally, annular pancreas is diagnosed on the basis of symptoms associated with complications of peptic ulcer, pancreatitis, cholelithiasis, and rarely, malignant tumors. Herein, we report an 84-year-old man for whom, during hospitalization for a urinary tract infection, pancreatic cystic lesions and an annular pancreas were noted incidentally on computed tomography.

Distinct prognostic impacts of age-adjusted Charlson comorbidity index and geriatric nutritional risk index in patients with intraductal papillary mucinous neoplasm.

The optimal surgical indication for intraductal papillary mucinous neoplasms (IPMN) remains highly contentious. We aimed to determine the preoperative predictive factors of malignancy and independent prognostic factors in patients with IPMN who underwent curative-intent resection. In this study, 104 patients with a pathological diagnosis of IPMN who underwent curative-intent resection were included.

Tumor budding is an independent adverse prognostic factor of pancreatic ductal adenocarcinoma patients treated by resection after preoperative chemoradiotherapy.

Objectives: To examine the significance of tumor budding as a prognostic factor of resected pancreatic ductal adenocarcinoma (PDAC) specimens after preoperative chemoradiotherapy (CRT).

Methods: Among 162 PDAC patients who underwent pancreatectomy after gemcitabine and S1-based CRT from 2012 to 2019, 131 were evaluated for tumor budding. Tumor buds were counted at the invasive front, where the degree of budding was the greatest (hematoxylin and eosin staining, ×20 magnification).

Effect of Transpancreatic Mattress Suture With Polyglycolic Acid Sheet in Pancreatic Stump Closure for the Prevention of Postoperative Pancreatic Fistula in Robotic Distal Pancreatectomy.

Objective: Pancreatic stump closure in minimally invasive distal pancreatectomy (DP) commonly utilizes staplers due to its simplicity; however, postoperative pancreatic fistula (POPF) remains the most frequent complication. We have developed a novel stump closure technique using a transpancreatic mattress suture with a polyglycolic acid sheet (TP method) under robotic DP. This study aims to evaluate the efficacy of the TP method.

Prognostic significance of early and multiple recurrences after curative resection for hepatocellular carcinoma.

Background: In hepatocellular carcinoma (HCC), postoperative recurrence remains high. This study aimed to evaluate the recurrence patterns and prognosis of HCC after curative hepatectomy.

Methods: Among 352 patients with primary HCC who underwent initial hepatectomy between January 2002 and December 2022, 151 with recurrence were assessed for the relationship between recurrence pattern and prognosis.

Short-term surgical outcomes of open, laparoscopic, and robot-assisted pancreatoduodenectomy: A comparative, single-center, retrospective study.

Purpose: Although laparoscopic pancreaticoduodenectomy (LPD) and robot-assisted pancreaticoduodenectomy (RPD) are gradually gaining popularity, their advantages over open pancreaticoduodenectomy (OPD) remain controversial. This study aimed to compare the short-term outcomes of OPD, LPD, and RPD to elucidate the advantages and disadvantages of each procedure.

Methods: We retrospectively analyzed 16 LPD, 43 RPD, and 36 OPD procedures performed at a single center between April 2020 and May 2024.

Peritoneal washing cytology status as a crucial prognostic determinant in patients with localized pancreatic ductal adenocarcinoma who underwent curative-intent resection following preoperative chemoradiotherapy.

Background: Prognostic implications of peritoneal washing cytology (CY) in patients with localized pancreatic ductal adenocarcinoma (PDAC) undergoing surgical resection following preoperative chemoradiotherapy (CRT) remain unclear. This study aimed to elucidate the prognostic significance and predictors of a positive CY status (CY+) after preoperative CRT.

Methods: Clinical data from 141 patients with localized PDAC who underwent curative-intent resection after preoperative CRT were retrospectively analyzed to examine the association between CY+ and clinicopathological factors and survival.

A comparison of pancreatojejunostomy using the modified Blumgart anastomosis with or without a four-needle three-loop suture device and continuous sutures for duct-to-mucosa anastomosis in robotic pancreaticoduodenectomy.

Purpose: Despite descriptions of different pancreatojejunostomy procedures using robotic pancreaticoduodenectomy (RPD), a standardized procedure has not yet been established. No prior report has described pancreatojejunostomy by RPD combined with modified Blumgart anastomosis with continuous suturing for duct-to-mucosa anastomosis. This study investigated this surgical technique and evaluated the short-term outcomes of the simplified pancreatojejunostomy procedure.

Hepatopancreatoduodenectomy with delayed division of the pancreatic parenchyma when utilizing a right lateral approach to the superior mesenteric artery.

Background: Hepatopancreatoduodenectomy (HPD) is a high-risk surgical procedure. Delayed division of the pancreatic parenchyma (DDPP) was reported as a novel technique in HPD for reducing postoperative pancreatic fistula. However, it is often difficult to dissect the pancreatic head nerve plexus while leaving the pancreatic parenchyma intact, particularly in patients with a bulky tumor with vascular invasion.

Laparoscopic Warshaw procedure in pediatric solid pseudopapillary neoplasm of the pancreas: Technical feasibility and oncological outcomes.

Achieving margin-negative resection is crucial in treatment of solid pseudopapillary neoplasm (SPN) of the pancreas, while preserving the spleen during distal pancreatectomy is highly desirable in pediatric cases. Laparoscopic Warshaw procedure (Lap-WT) is invaluable when tumor involvement in splenic vessels complicates preservation. However, the feasibility of Lap-WT in pediatric patients remains contentious.

Radiomics-based prediction of nonalcoholic fatty liver disease following pancreatoduodenectomy.

Purpose: Predicting nonalcoholic fatty liver disease (NAFLD) following pancreaticoduodenectomy (PD) is challenging, which delays therapeutic intervention and makes its prevention difficult. We conducted this study to assess the potential application of preoperative computed tomography (CT) radiomics for predicting NAFLD.

Methods: The subjects of this retrospective study were 186 patients with PD from a single institution.

Impact of radiological and pathological splenic vein involvement in patients with resectable pancreatic body or tail cancer.

Purpose: Several studies have reported a negative impact on survival associated with splenic vessel involvement, especially splenic artery (SpA) involvement, in patients diagnosed with pancreatic body or tail cancer. However, there is limited research on splenic vein (SpV) involvement. Therefore, we aimed to elucidate the significance of splenic vessel involvement, especially SpV involvement, in patients with resectable pancreatic body or tail cancer.

Choledochocele with hyperplastic epithelium in a patient who developed severe acute pancreatitis and underwent subtotal stomach-preserving pancreatoduodenectomy: a case report.

Choledochocele is defined as a congenital dilatation of the distal intramural part of the common bile duct protruding into the wall of the descending duodenum, typically without pancreaticobiliary maljunction. However, some cases present with a similar pathophysiology to pancreaticobiliary maljunction, including reciprocal reflux of pancreatic juices and bile, leading to protein plugs, pancreatitis, and biliary tract carcinogenesis. Choledochocele is relatively rare and its anatomy, physiology, pathology, and clinical features are thus not well known.

Spleen volume is a predictor of posthepatectomy liver failure and short-term mortality for hepatocellular carcinoma.

Background: The study aimed at retrospectively assessing the impact of spleen volume (SpV) on the development of posthepatectomy liver failure (PHLF) in patients who underwent hepatectomy for hepatocellular carcinoma (HCC).

Methods: 152 patients with primary HCC who underwent hepatectomy (sectionectomy or more) were classified into PHLF and non-PHLF groups, and then the relationship between PHLF and SpV was assessed. SpV (cm) was obtained from preoperative CT and standardized based on the patient's body surface area (BSA, m).

Inverted Y-shaped technique for complex superior mesenteric / portal vein reconstruction in pancreatoduodenectomy for locally advanced pancreatic head ductal adenocarcinoma.

Most pancreatoduodenectomy (PD) procedures for locally advanced pancreatic head adenocarcinoma (PDAC) require superior mesenteric/portal vein (SMV/PV) axis resection and reconstruction. Here we describe the inverted Y-shaped as a new technique for complex SMV/PV reconstruction and aimed at evaluating its safety and effectiveness. Among 287 patients who underwent PD for locally advanced PDAC from April, 2007 to December, 2020 at our hospital, 11 patients (3.

Clinical Significance of Plasma Tenascin-C Levels in Recipients With Prolonged Jaundice After Living Donor Liver Transplantation.

Background: Focusing on tenascin-C (TNC), whose expression is enhanced during the tissue remodeling process, the present study aimed to clarify whether plasma TNC levels after living donor liver transplantation (LDLT) could be a predictor of irreversible liver damage in the recipients with prolonged jaundice (PJ).

Methods: Among 123 adult recipients who underwent LDLT between March 2002 and December 2016, the subjects were 79 recipients in whom we could measure plasma TNC levels preoperatively (pre-) and on postoperative days 1 to 14 (POD1 to POD14). Prolonged jaundice was defined as serum total bilirubin level >10 mg/dL on POD14, and 79 recipients were divided into 2 groups: 56 in the non-PJ (NJ) group and 23 in the PJ group.

Anterior versus posterior radical antegrade modular pancreatosplenectomy for pancreatic body and tail cancer: an inverse probability of treatment weighting with survival analysis.

Purpose: Radical antegrade modular pancreatosplenectomy (RAMPS) is a standard procedure for patients with pancreatic body and tail cancer. There are two types of RAMPS: anterior and posterior, but their indications and surgical outcomes remain unclear. We compared the surgical outcomes, postoperative course, and prognosis between anterior and posterior RAMPS.

Efficacy of Reinforced Stapler Versus Hand-sewn Closure of the Pancreatic Stump During Pure Laparoscopic Distal Pancreatectomy to Reduce Pancreatic Fistula.

Background: Laparoscopic distal pancreatectomy (L-DP) is the standard procedure for treating left-sided pancreatic tumors. Stapler closure of the pancreas is the preferred method for L-DP; however, postoperative pancreatic fistula (POPF) remains a challenging problem. The present study aimed to compare the surgical outcomes of staple closure using a reinforcing stapler (RS) and transection using an ultrasonic dissector followed by hand-sewn (HS) closure in a fish-mouth manner in pure L-DP and to determine independent perioperative risk factors for clinically relevant postoperative pancreatic fistula (CR-POPF).