Radiology, Vol 186, 207-212, Copyright © 1993 by Radiological Society of North America

ARTICLES

Iliac arteries: reanalysis of results of balloon angioplasty

KW Johnston
Department of Surgery, University of Toronto, Ontario, Canada.

In this reanalysis of the 667 percutaneous transluminal balloon angioplasties (PTAs) of the iliac arteries, the variables that are predictive of early and late success were identified. For 82 iliac occlusions, the success rate at 1 month was 75.6% +/- 4.7 (mean +/- standard error). With exclusion of the 15 technical failures that were associated with one complication, the success rate at 1 month was 91.0% +/- 3.5 and at 3 years, 58.8% +/- 7.1. For PTA of an iliac occlusion at one site, the predicted 3-year success rate was 66%, whereas for PTA of an iliac occlusion with a tandem lesion, the success rate was 17%. For the 313 common iliac PTAs, the success rate at 1 month was 97.1% +/- 0.9; at 1 year, 81.1% +/- 2.3; at 2 years, 70.6% +/- 2.9; at 3 years, 67.8% +/- 3.0; at 4 years, 64.9% +/- 3.3; at 5 years, 60.2% +/- 4.0; and at 6 years, 52.0% +/- 5.7. There were no variables that were statistically predictive of late results. For the 209 external iliac PTAs, the predicted 3-year success rate was 57% for men and 34% for women. For 58 PTAs of both common and external iliac stenoses, the predicted 3-year success rate was 73% for patients with good runoff and 30% for those with poor runoff. Serious complications were recorded in 3.9% (26 of 667): Death occurred in 0.3%, operation was necessary in 1.0%, and hospital discharge was delayed in 2.6%.

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