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. 2004 Aug;42(3):81-5.

Femoro-distal bypass surgery at Groote Schuur hospital--4-year retrospective study

B P Mwipatayi  1 , P C Jeffery, P Motale, P J Matley, E J Immelman, D Kahn, C J Welman
Affiliations
  • PMID: 15532614

Femoro-distal bypass surgery at Groote Schuur hospital--4-year retrospective study

B P Mwipatayi et al. S Afr J Surg. 2004 Aug.

Abstract

An analysis of the demographics and outcome of femoro-distal bypass in patients presenting with defined critical limb ischaemia at Groote Schuur Hospital, Cape Town, is presented.

Materials and methods: A retrospective review was conducted between January 1998 and December 2001. During this period, 65 patients underwent femoro-distal bypass. Of these, 57 patients were analysed and 8 patients were excluded from the study because of incomplete medical records

Results: The median age of the patients in this study was 62 years, with a male-to-female ratio of 34:23. Twenty-eight patients (49%) were diabetic. An overall 2-year mortality of 19.2% was recorded. Reversed saphenous vein graft (RSVG) was used in 29 legs (50.9%) and in situ vein graft (ISVG) in 19 legs (33.3%). There was no statistically significant difference in the graft patency between the two methods (p = 0.39); the 2-year cumulative patency was 40% for the RSVG and 39% for the ISVG. In our unit only 2 factors influenced the outcome of femoro-distal bypass--local sepsis in the foot and an increased early postoperative ankle-brachial index (p < 0.05). Diabetes mellitus, gender, age and race had no influence on the outcome. This study showed that the site of the distal anastomosis had no effect on graft patency or limb salvage. At 2 years, the cumulative patency and limb salvage rates were 40% and 56% respectively. Of the 11 grafts with stenotic lesions requiring intervention, 6 were detected between 18 and 24 months.

Conclusion: Management of critical limb ischaemia is a major part of the workload in our unit, with most patients undergoing primary amputation. The surgical outcome of femoro-distal bypass was largely influenced by local sepsis and early postoperative ABI. We found that more than half the stenotic lesions detected during graft surveillance occurred beyond 18 months postoperatively. This suggests that a graft surveillance programme should continue beyond 18 months.

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