Femoropopliteal angioplasty. Factors influencing long-term success.
Prospective data was recorded on 217 percutaneous transluminal angioplasty (PTA) procedures performed in the superficial femoral and popliteal arteries over an 8-year period. After the initial procedure, patients were followed with serial noninvasive studies and, in 71 patients, repeat angiography. The mean follow-up period was 7 years (range, 2-11 years). Standard life-table survival analysis was used to assess the factors potentially affecting long-term outcome. Excluding an initial technical failure rate of 10%, overall patencies at 1, 3, and 5 years were 81%, 61%, and 58%, respectively. After the first year, the prognosis (i.e., failure rate) appears to be linear over the long term (i.e., up to 10 years). Factors negatively influencing long-term patency include the presence of diabetes mellitus, diffuse atherosclerotic cardiovascular disease, or threatened limb loss. Technical factors correlated with failure include lesion length, moderate eccentricity, and a poor post-PTA appearance.
Capek
P
P
Radiologic Associates, Sutter Hospitals, Sacramento, Calif.
McLean
G K
GK
Berkowitz
H D
HD
D000800:Angioplasty, Balloon; D001157:Arterial Occlusive Diseases / Q000628:therapy*; D005260:Female; D005263:Femoral Artery; D005500:Follow-Up Studies; D006801:Humans; D007383:Intermittent Claudication / Q000628:therapy; D015993:Life Tables; D008297:Male; D008875:Middle Aged; D011150:Popliteal Artery; D013997:Time Factors; D014654:Vascular Patency