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Distal Anastomotic Hyperplasia in Superficial Femoral-Popliteal Vein Femoropopliteal Bypass Grafts

Department of Surgery, State University of New York at Stony Brook, New York

Mohan Rao Badhey

Department of Surgery, State University of New York at Stony Brook, New York

Lee G. Schulman

Vascular Diagnostic Laboratory, Great Neck, New York

Alfonso M. Lledo-Perez

Deepdale General Hospital, Little Neck, New York, St. Francis Hospital, Roslyn, New York

The incidence of distal anastomotic hyperplasia (DAH) in superficial femoral- popliteal veins (SF-PVs) used as femoropopliteal bypass (FPB) grafts was inves tigated, with particular reference to the form of distal anastomotic construction. Seventy-seven SF-PV grafts that met specific angiographic follow-up criteria quali fied as "studied" grafts. DAH was identified in 13 (17%). Cobra head anastomoses, 2 cm or less in length, were used in 21 grafts and yielded 6 in stances of DAH (29%). When 8 sharply tapered 3 cm (swordfish) anastomoses were constructed, 3 grafts (37.5%) developed DAH. With 3 cm moderately ta pered (fishmouth) anastomoses in 48 grafts, DAH was seen 4 times (8%). Be cause the distal 1 cm of the swordfish configuration was very narrow, the swordfish and cobra head constructions were functionally equivalent and were grouped together as "short" anastomoses. The difference in the incidence of DAH with long and short anastomoses, 8% vs 31%, was statistically significant (p = .016).

In the 48 "studied" grafts with fishmouth anastomoses, the occurrence of all 4 DAHs among the 15 female diabetic limbs was also significant (p = .019).

Constructing 3 cm moderately tapered anastomoses significantly reduced the incidence of DAH, the leading cause of graft failure, in SF-PV FPB grafts. The achievement of primary and assisted patency rates of 84% and 91% at both three and five years in the 93 SF-PVs placed as primary FPB grafts since October, 1982, was largely due to the reduction in DAH that resulted from anastomotic modification.

Vascular and Endovascular Surgery, Vol. 25, No. 8, 618-627 (1991)
DOI: 10.1177/153857449102500804


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