Enterotoxigenicity of E. coli isolates was tested in 136 cases of acute gastroenteritis. Heat labile toxin (LT) produced in-vitro was tested in rabbit ileal loop (RIL); vero cell line and Biktn plate. The results of live cultures were evaluated in RIL. The overall data of these four models were not statistically different. Elaboration of LT in these four models ranged from 14-21.4%. Out of the 20 LT producing strains 14 (70%) also revealed ST. Of the 6 positive reactors on vero cell line, appeared to produce vero toxin (VT) only. Out of 29 LT positive E. coli, 1 (3.45%) and 2 (6.89%) strains respectively revealed colonising factor antigen (CFA) I and II. The high incidence of ETEC showing both LT and ST has been highlighted in the age group 0-4 years, and its impact on nutritional status is discussed.

Arterio-venous fistula of Brescia was created in 112 consecutive patients during a five year period from May 1983 at King Fahd University Hospital of King Faisal University, Al-Khobar, Saudi Arabia. These fistulae were created for hemodialysis in patients with chronic renal failure. There were 67 males and 45 females. The youngest patient was 13 years and the oldest 75 years. Complications were negligible (0.85%), even-though 31% were diabetics and 24% had sickle cell hemoglobinopathy. The arteriovenous fistula failed in 6 patients and the patency rate was 94.6%. The minimum follow up was three months and the maximum fifty-two months. The end-to-side anastomosis gave better results. For long term dialysis arterio-venous fistula of Brescia should remain as the first choice.