SUMMARYFive patients with volvulus of the sigmoid colon complicated by gangrene are reported, in none of whom was a Mikulicz exteriorization resection possible due to the extent of the gangrene. T h e pathogenesis of gangrene in this condition is discussed and the literature reviewed. It is concluded that the procedure of choice is Hartmann's operation, that primary resection with anastomosis is permissible under optimal conditions, and that the Mikulicz exteriorization resection is best avoided.VOLVULUS of the sigmoid colon is a rare surgical emergency in Western countries and few British surgeons have much practical experience of the management of this condition; major British hospitals admit an average of only I case a year (Bolt, 1956). In other parts of the world sigmoid volvulus is one of the more common causes of large-bowel obstruction and in the Middle East it is about four times as common as in Western countries (Nay and West, 1967). Other parts of Africa have an even higher incidence and recent reports from East Africa (Shepherd, J. J., 1968,1969) have discussed thoroughly the management of the early case. However, there is still some doubt as to the best way of dealing with the volvulus complicated by gangrene (Shepherd, J. J., 1968) and, although personal experience will be slow to accumulate, the condition occurs with sufficient frequency to merit a clear policy of management (Hughes, 1969). I t would therefore seem appropriate to report the experience with 5 such patients seen recently in Libya, and review the problem.Libya is a country of about 700,000 square miles, which are largely desert, with the population mainly scattered along a narrow coastal fringe. Communication with the interior is by air but, even so, patients from a distance may not reach a major hospital until several days after the onset of their illness. T h e largest hospital in the country is the Central Government Hospital in the capital, Tripoli, where the reported patients were seen. This hospital has facilities for major emergency surgery but blood for transfusion is in extremely short supply. Owing to the language barrier an accurate history was difficult to obtain and the preoperative diagnosis was made largely from the clinical examination. Sigmoidoscopy was not performed on any of the reported patients as it was considered that their abdominal signs necessitated laparotomy.T h e operations were carried out by two surgeons:Dr. Bertrando Fochi, who had responsibility for the female patients, and the author, who looked after the male patients.
CASE REPORTSCase x.-G. N., a man of 65 years, was admitted to hospital as an emergency with a 5-day history of colicky abdominal pain and absolute constipation. Over the 2 days preceding admission he had been vomiting repeatedly and had become oliguric. As far as could be ascertained, he had been in previously good health without anv abdominal symptoms.On examination he was severely shocked with cold, clammy extremities, a pulse-rate of 120 per minute, and a systolic blood-pressure of...