Retained stone retrieval basket causing chronic pancreatitis: a case report.

Background: Endoscopic retrograde cholangiopancreatography is a common procedure performed for choledocholithiasis and gallstone pancreatitis. Although a relatively low risk procedure, it is not without its complications. Cases of impacted Dormia baskets during stone retrieval have been reported, but these are usually retrieved surgically during the same setting.

Safely Implementing a Program of Pure Laparoscopic Donor Right Hepatectomy: The Experience From a Southeast Asian Center.

Unlabelled: Laparoscopic donor right hepatectomy (LDRH) is a technically challenging procedure. There is increasing evidence demonstrating the safety of LDRH in high-volume expert centers. We report our center's experience in implementing an LDRH program in a small- to medium-sized transplantation program.

Locally invasive recurrence or metastasis of pheochromocytoma into the liver?-clinicopathological challenges.

Pheochromocytomas (PCC) are rare and functional neuroendocrine tumors developing from adrenal chromaffin cells. Predicting malignant behavior especially in the absence of metastasis can be quite challenging even in the era of improved understanding of the molecular mechanisms involved in PCCs. Currently, two histopathological grading systems Pheochromocytoma of the Adrenal Gland Scaled Score (PASS) and Grading of Adrenal Pheochromocytoma and Paraganglioma (GAPP) score are used in clinical practice, but these are subject to significant interobserver variability.

Impact of donor age on recipient morbidity and mortality after living donor liver transplantation.

Background: Evidence for use of graft from older donors in living donor liver transplantation (LDLT) has been conflicting. This study aims to clarify the impact of donor age on recipient morbidity and mortality after adult LDLT.

Methods: A total of 90 live liver donors and recipients who underwent primary adult-to-adult LDLT were divided into three groups according to donor age: donors in 20s (D-20s) group, donors in 30s and 40s (D-30s and 40s) group and donors in 50s & 60s (D-50s and 60s) group.

Pan-cancer pervasive upregulation of 3' UTR splicing drives tumourigenesis.

Most mammalian genes generate messenger RNAs with variable untranslated regions (UTRs) that are important post-transcriptional regulators. In cancer, shortening at 3' UTR ends via alternative polyadenylation can activate oncogenes. However, internal 3' UTR splicing remains poorly understood as splicing studies have traditionally focused on protein-coding alterations.

Multimodal prehabilitation before major abdominal surgery: A retrospective study.

Introduction: Prehabilitation may benefit older patients undergoing major surgeries. Currently, its efficacy has not been conclusively proven. This is a retrospective review of a multimodal prehabilitation programme.

Evaluation of Adult Living Donor Liver Transplantation in Largest Southeast Asian Transplantation Center: Benchmarking With Adult-to-Adult Living Donor Liver Transplantation (A2ALL) Experience.

Background: The volume-outcome relation for complex surgical procedures such as living donor liver transplantation (LDLT) generally favors high volume (HV) centers. It is important for low to medium volume (MV) centers to evaluate their centers' performance against HV centers to allow early detection and correction of potential systemic issues. There is a dearth of national and international comprehensive registries for LDLT that may allow reasonable risk-adjusted comparisons for benchmarking.

Living donor hepatectomy in medium volume liver transplant centre has comparable outcomes to high volume centres: validation of donabedian quality assurance framework.

Background: Given the complexity of living donor hepatectomy, it is expected that high hospital volume will better outcomes. This study aims to evaluate post-operative outcomes for living donor hepatectomy in a medium volume liver transplant centre and compare to outcomes in high volume centres. Also, it serves as a validation tool for framework of structure-process-outcome model for safe living donor hepatectomy program.

Impact of COVID-19 on Liver Transplantation in Hong Kong and Singapore: A Modelling Study.

Background: Liver transplantation (LT) activities during the COVID-19 pandemic have been curtailed in many countries. The impact of various policies restricting LT on outcomes of potential LT candidates is unclear.

Methods: We studied all patients on the nationwide LT waitlists in Hong Kong and Singapore between January 2016 and May 2020.

Liver transplantation for non-resectable colorectal liver metastases: the International Hepato-Pancreato-Biliary Association consensus guidelines.

Colorectal cancer is a prevalent disease worldwide, with more than 50% of patients developing metastases to the liver. Despite advances in improving resectability, most patients present with non-resectable colorectal liver metastases requiring palliative systemic therapy and locoregional disease control strategies. There is a growing interest in the use of liver transplantation to treat non-resectable colorectal liver metastases in well selected patients, leading to a surge in the number of studies and prospective trials worldwide, thereby fuelling the emerging field of transplant oncology.

Teaching Medical Research to Medical Students: a Systematic Review.

Phenomenon: Research literacy remains important for equipping clinicians with the analytical skills to tackle an ever-evolving medical landscape and maintain an evidence-based approach when treating patients. While the role of research in medical education has been justified and established, the nuances involving modes of instruction and relevant outcomes for students have yet to be analyzed. Institutions acknowledge an increasing need to dedicate time and resources towards educating medical undergraduates on research but have individually implemented different pedagogies over differing lengths of time.

The unspoken reality of gender bias in surgery: A qualitative systematic review.

Objective: This study was conducted to better understand the pervasive gender barriers obstructing the progression of women in surgery by synthesising the perspectives of both female surgical trainees and surgeons.

Methods: Five electronic databases, including Medline, Embase, PsycINFO, CINAHL and Web of Science Core Collection, were searched for relevant articles. Following a full-text review by three authors, qualitative data was synthesized thematically according to the Thomas and Harden methodology and quality assessment was conducted by two authors reaching a consensus.

An international multicenter study of protocols for liver transplantation during a pandemic: A case for quadripartite equipoise.

Background & Aims: The outbreak of COVID-19 has vastly increased the operational burden on healthcare systems worldwide. For patients with end-stage liver failure, liver transplantation is the only option. However, the strain on intensive care facilities caused by the pandemic is a major concern.

Clinical management and outcomes of acute pancreatitis: Identifying areas for quality improvement in a tertiary Asian setting.

Background: This study aims to review the clinical management of patients with acute pancreatitis in a tertiary institute in Singapore, and to identify areas qualiy improvement based on validation against the recommendations in the IAP/APA and the Japanese guidelines.

Methods: 391 patients from a prospective electronic database were included and reviewed for compliance to the International Association of Pancreatology (IAP)/American Pancreatic Association (APA) guidelines (2013) and the Japanase Guidelines (2015).

Results: The 90 day mortality was 8.

Intravenous maintenance fluid tonicity and hyponatremia after major surgery- a cohort study.

Background: Intravenous maintenance fluid (IMF) tonicity and composition influence plasma electrolyte balance.

Objective: To determine if hypotonic IMF therapy contributes to post-surgical hyponatremia.

Setting: Single-center tertiary institution.

Does persistent anti-HBc positivity influence the prognosis of HBsAg-negative hepatocellular carcinoma? comparative outcomes of anti-Hbc positive versus anti-Hbc negative non-B non-C HCC.

Background: To compare the presentations and outcomes of anti-HBc seropositive Hepatocellular Carcinoma (HBc-HCC) with anti-HBc seronegative (NHBc-HCC) patients in HBsAg negative Non-HBV Non-HCV (NBNC-HCC) HCC population.

Methods: 515 newly diagnosed HCC patients from January 2011 to September 2016 were retrospectively reviewed. 145 (66.

Bridging therapies to liver transplantation for hepatocellular carcinoma: A bridge to nowhere?

Backgrounds/aims: Liver Transplantation (LT) is a recognized treatment for Hepatocellular Carcinoma (HCC). The role of Bridging Therapies (BT) remains controversial.

Methods: From January 2001 to October 2012, 192 patients were referred to the National University Hospital, Singapore for consideration of LT for HCC.

ALPPS for Hepatocellular Carcinoma Is Associated with Decreased Liver Remnant Growth.

Background: Associating liver partition and portal vein ligation for staged hepatectomy (ALPPS) has been widely described for colorectal liver metastases with insufficient future liver remnant (FLR). However, its role in hepatocellular carcinoma (HCC) remains poorly defined and not widely accepted.

Methods: A retrospective comparison of clinical data, liver volumetry, histological characteristics, and surgical outcomes between nine HCC and four non-HCC patients who underwent ALPPS was performed.

A predictive nomogram to identify factors influencing the success of a concomitant laparoscopic cholecystectomy with common bile duct exploration for choledocholithiasis.

Background: Single-staged laparoscopic common bile duct exploration (LCBDE) offers clear benefits in terms of cost and shorter hospitalization stays. However, a failed LCBDE requiring conversion to open surgery is associated with increased morbidity. This study reviewed the factors determining success of LCBDE, and created a predictive nomogram to stratify patients for the procedure.

Greater hypertrophy can be achieved with associating liver partition with portal vein ligation for staged hepatectomy compared to conventional staged hepatectomy, but with a higher price to pay?

Background: Associating liver partition with portal vein ligation for staged hepatectomy (ALPPS) and conventional staged hepatectomy (CSH) are options for patients with unresectable liver tumors due to insufficient future liver remnant (FLR).

Methods: A retrospective comparison of clinical data, liver volumetry and surgical outcomes between 10 ALPPS and 29 CSH patients was performed.

Results: Patient demographics and disease characteristics were similar between both groups.