Does the Overall Survival of the Resectable Periampullary Carcinomas Correlate with High Expression of p53 and ki67?

Introduction: Periampullary carcinomas represent a group of tumors that develop in a complex area, implying different anatomical structures. The most common histological type of periampullary carcinomas is the adenocarcinoma. The pancreatic type of periampullary adenocarcinomas has the worst prognosis. Immunohistochemical markers, such as ki-67 and p53, can be used in predicting survival. Material and method: we selected the patients with periampullary adenocarcinomas, intestinal or biliopancreatic type, with resectable tumors, and we performed immunohistochemical stains for ki-67 and p53 markers. The overall survival was analyzed according to the expression of immunohistochemical markers, TNM staging, tumor grade and perineural invasion. Results: Sixty-seven patients were included in the study. The median overall survival for the whole cohort was 12 months, with a 2-year survival rate of 25%. High rate of tumor proliferation (ki67 more than 80%) was significantly associated with shorter overall survival (median survival 3 months compared with 17 months for the group with ki67 index less than 80%). A high expression of p53 protein has been associated with low overall survival. The low survival was associated with poorly differentiated tumor grade and lymph node status. Conclusion: Both immunohistochemical expression of ki67 and p53 can be used as prognostic and predictive factors for overall survival of patients with resectable periampullary adenocarcinomas.

Challenges and Solutions in the Management of Hepatocellular Carcinoma Associated with Non-Alcoholic Fatty Liver Disease.

Non-alcoholic fatty liver disease (NAFLD) has gained attention in the last few years due to its increasing prevalence worldwide becoming a global epidemic. The increasing incidence of NAFLD and the concurrent increase in the number of hepatocellular carcinoma (HCC) cases at a global level is a matter of concern. HCC has several risk factors, of which NAFLD and its associated metabolic disturbances-type 2 diabetes mellitus, obesity, and dyslipidemia-are of great interest due to their accelerating rise in incidence worldwide. There is a high amount of data derived from basic and clinical studies that reveal the molecular pathways that drive NAFLD-associated HCC. Based on these findings, new prevention, surveillance, and treatment strategies are emerging. However, current data on treatment modalities in NAFLD-associated HCC are still scarce, though the results from non-NAFLD HCC studies are promising and could provide a basis for a future research agenda to address NAFLD/NASH patients. Clinicians should carefully assess all the clinical and radiological parameters and establish a prognosis based on the Barcelona Clinic Liver Cancer classification and discuss in a multidisciplinary team the treatment strategy. The specific factors associated with NAFLD-associated HCC which can have a negative impact on survival even in patients with early HCC, such as cardiovascular disease, type 2 diabetes, and obesity, should be taken into consideration. This review aims to discuss the latest recommendations regarding the diagnosis and treatment of NAFLD-associated HCC and the remaining challenges.

Pancreaticoduodenectomy In Patients With Hepatic Artery, Anatomic Variants: Tailoring, Perioperative Care and Surgical Outcomes.

Introduction: Pancreaticoduodenectomy (PD) is the procedure of choice in patients with tumors of pancreatic head or periampullary region. Hepatic artery anatomic variants (HAav) are frequently encountered during PD. Aim: To evaluate the incidence of HAav in a series of PDs and their consequence on technical tailoring and outcome. Material and Methods: Forty-five patients with HAav were identified in a consecutive series of 140 PDs for periampullary and pancreatic head tumors performed between January 1, 2007 and December 31, 2015. The groups with or without HAav were compared in terms of operative approach, complications and survival. Results: All patients underwent Whipple procedure, with right posterior approach for those having HAav. HAav was spared without damage in 41 cases. Four patients in whom the HAav were either sacrificed (2) or damaged (2) required arterial reconstruction. Conclusions: HAav are frequently encountered during PD. Its safeguarding is mandatory but in malignancy it can be damaged or sacrificed, hence arterial reconstruction is required. HAav have no negative impact on surgical morbidity and outcome.