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H F Allison

Publications and source records attributed to H F Allison.

4 recordsLinked to original sources

Axillofemoral bypass. A 2-decade experience reviewed.

A retrospective study of axillofemoral bypass performed at Groote Schuur Hospital over a period of 2 decades was undertaken to analyse the results and to re-examine current criteria for patient selection. During this period 109 patients underwent surgery. The primary indication was critical ischaemia (in 88% of cases). Operative mortality was 6,4%. Graft thrombosis and sepsis were identified as the major reasons for graft failure. Overall graft patency at 3 years was 43% and at 5 years 30%. Successful graft thrombectomy improved the overall cumulative patency rate at 5 years to 43%, and patient survival in the same period was 56%. Modern advances in the assessment of anaesthetic risk together with improved postoperative intensive care have allowed more patients who in the past would have been considered candidates for axillofemoral bypass to undergo direct aortic reconstruction. While the results of axillofemoral bypass are inferior to those of aortic grafts, the technique remains a valuable method of limb salvage for the poor-risk patient and a life-saving treatment for aortic graft sepsis.

Adult↗

Pyogenic liver abscess caused by Streptococcus milleri. Case reports.

In recent years Streptococcus milleri has emerged as an important cause of pyogenic liver abscess. Whether this represents a changing epidemiological pattern or merely reflects the more widespread application of routine anaerobic bacterial culture techniques is unclear. The isolation of Strept. milleri on culture of a blood specimen from a patient presenting with a pyrexial illness should alert the clinician to the possibility of an underlying liver abscess. Although it is isolated anaerobically this organism should not be mistaken for an obligate anaerobe, especially since it is resistant to metronidazole. Two cases of primary pyogenic liver abscess caused by this organism are reported.

Female↗

An ischemic basis for biliary strictures.

Three case reports reflecting a probable ischemic basis for biliary strictures are presented. A stricture occurring after biliary-enteric anastomosis following low division of the bile duct and another after relatively low division of the bile duct are explained on the basis of the tenuous blood supply to the supraduodenal bile duct from above. It is postulated that these strictures could have been avoided had the bile duct been divided at a higher level originally and had adequate back-bleeding from the transected upper bile duct been checked prior to performing the anastomosis. The stricture in the third patient probably occurred because the damaged duct segment was used for the anastomosis. The stricture could probably also have been avoided by higher transection of the duct.

Adult↗