Adenocarcinoma of the gastroesophageal junction after bariatric surgery.

Background: The development of upper gastrointestinal malignancies after bariatric surgery has not been well characterized. Our objective was to review the experience of patients with distal esophageal cancer that was diagnosed after bariatric surgery.

Methods: A retrospective review was conducted to identify patients who had undergone bariatric surgery (1999 to 2006) and who later developed high-grade dysplasia or adenocarcinoma of the distal esophagus.

Hemic micronutrients following vertical banded gastroplasty.

Serum iron, folate, B12 and total iron binding capacity (TIBC) were obtained preoperatively and at 6-month intervals in 40 morbidly obese patients who underwent VGB. Deficiencies of hemic micronutrients rarely occurred following VBG. Hemoglobin and hematocrit levels were within normal limits at all times.

Idiosyncracies of the Hollander test in the obese patient.

The Hollander test of gastric secretion in response to acute hypoglycemia is a time-honored method of evaluating vagal integrity. In the course of performing gastric bypass procedures in 19 morbidity obese patients who were twice their weight for height, Hollander tests were included in the preoperative evaluation. Infusion of a standard dose of 20 units of regular insulin failed to produce a hypoglycemia of 35 mg/dl in 13 patients (68%).