Arterial aneurysms have only recently been associated with the human immunodeficiency virus (HIV). The clinical and pathological features of 10 HIV-positive patients with arterial aneurysms were retrospectively evaluated. These aneurysms were unusual in that they affected young black patients, occurred in atypical sites, and tended toward multiplicity. Surgery was performed in eight patients. Acute and chronic inflammatory changes were revealed by means of histologic examination of the aneurysm walls, with occlusion of the vasa vasora by inflammatory infiltrate or edema being a prominent feature. Culture of the aneurysm wall or thrombus yielded positive results in two patients. The association between HIV and aneurysms may be coincidental, caused by direct viral action or by bacterial infection resulting from immunosuppression. Implications for therapy are discussed, and the need for further study is highlighted.

A prospective study of 111 patients with low velocity gunshot wounds of the abdomen was conducted to determine whether a policy of selective conservative management based on repeated physical examination is a safe form of treatment. Laparotomy was undertaken in 89 patients (80 per cent), seven of which were negative. Of the patients 22 (20 per cent), eight of whom were considered to have peritoneal penetration, underwent conservative management. None required delayed laparotomy. Eight patients (7 per cent) died, all deaths occurring in the positive laparotomy group. The incidence of significant intra-abdominal injury if the peritoneal cavity had been penetrated was 89 per cent. Selective conservative management may be applied safely to a limited group of patients with gunshot wounds of the abdomen.

Civilian popliteal gunshot injuries are attended by a high amputation rate. Prompt resuscitation and revascularization appear to be the only correctable factors that may improve limb salvage rates.

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