Clonidine for major vascular surgery in hypertensive patients: a double-blind, controlled, randomized study.

The utility of clonidine for hypertensive patients presenting for major vascular procedures remains debatable. Twenty-one hypertensive patients presenting for aortic surgery were given clonidine (n = 11) or placebo (n = 10) in a double-blind, randomized manner. Clonidine was administered 6 micrograms/kg per os 120 min before induction of anesthesia and 3 micrograms/kg intravenously (i.

The embolic type of popliteal entrapment syndrome.

The authors describe their experience with two patients who presented with clinical extremes of popliteal entrapment syndrome. One patient presented with acute ischemia and the second patient presented with a chronic Buergerian-like syndrome. The common denominator for both of them was embolic phenomena originating at the site of entrapment.

Extracorporeal repair of renal artery branch lesions.

Complex renal artery lesions which formerly would have been treated by nephrectomy may now be reconstructed by extracorporeal surgery and autotransplantation. Our experience in 15 patients (17 operations) with renal artery lesions extending into its branches or confined to them is described. Two patients underwent separate operations on both sides.