Metataxonomic Analysis Demonstrates a Shift in Duodenal Microbiota in Patients with Obstructive Jaundice.

The human gastrointestinal tract (GIT) is home to an abundance of diverse microorganisms, and the balance of this microbiome plays a vital role in maintaining a healthy GIT. The obstruction of the flow of bile into the duodenum, resulting in obstructive jaundice (OJ), has a major impact on the health of the affected individual. This study sought to identify changes in the duodenal microbiota in South African patients with OJ compared to those without this disorder.

Endoscopic capacity in West Africa.

Background: Levels of endoscopic demand and capacity in West Africa are unclear.

Objectives: This paper aims to: 1. describe the current labor and endoscopic capacity, 2.

Antibiotic prophylaxis for patients undergoing elective endoscopic retrograde cholangiopancreatography.

Background: The use of prophylactic antibiotics before endoscopic retrograde cholangiopancreatography (ERCP) is recommended by all major international gastroenterological societies, especially in the presence of an obstructed biliary system. Their use is intended to decrease or eliminate the incidence of complications following the procedure, namely cholangitis, cholecystitis, septicaemia, and pancreatitis.

Objectives: To assess the benefits and harms of antibiotics before elective ERCP in patients without evidence of acute or chronic cholecystitis, or acute or chronic cholangitis, or severe acute pancreatitis.

Antibiotic prophylaxis for patients undergoing elective endoscopic retrograde cholangiopancreatography. A survey of South African endoscopists and review of the literature.

Background: Antibiotic prophylaxis for endoscopic retrograde cholangiopancreatography (ERCP) is controversial. We set out to assess the current antibiotic prescribing practice among South African endoscopists who perform ERCPs, and then reviewed international guidelines and relevant studies.

Methods: Our audit of South African endoscopists who perform ERCPs took the form of a questionnaire.

Preliminary report on the effect of brachytherapy on expression of p53, bc1-2 and apoptosis in squamous cell carcinoma of the oesophagus.

Pre-brachytherapy biopsies and post-brachytherapy oesophagectomy specimens of 10 patients with early squamous cell carcinoma of the middle third of the oesophagus were examined for the expression of p53, bcl-2 and apoptosis using immunohistochemical markers. There was no expression of p53 in one patient in both pre- and post-brachytherapy specimens. In 8 patients, p53 staining was strongly positive (3+) with approximately 50% or more cells, and with diffuse and no specific pattern in the pre-brachytherapy biopsies.