[Long-term prognosis of coronary angioplasty: angiographic follow-up after three years].
Long-term angiographic follow-up was performed 3 years after percutaneous transluminal coronary angioplasty (PTCA) between 1983 and 1986. Among 294 arteries with initially successful dilatation, in which diameter was reduced by more than 20% and residual stenosis was less than 50%, 192 lesions were angiographically patent (50% or less stenosis) in the 6 month follow-up. Three years later, angiography was again performed for 81 lesions. There was no difference between these 81 cases with angiography and the remaining 111 cases in other clinical manifestations except for a higher frequency of diabetes mellitus observed in the angiography group (33% vs 19%). Progressive deterioration of the disease (more than 50% diameter stenosis) was noted in 5 cases, all of which already had relatively severe stenosis (40% or more) in the 6 month follow-up. It was concluded that dilated coronary artery lesions by PTCA can be expected to have good long-term prognosis once they are proven to be patent in the 6 month follow-up angiography.
Kitazume
H
H
Department of Internal Medicine, Bokuto Hospital, Tokyo.
Kubo
I
I
Iwama
T
T
Ageishi
Y
Y
Kanazawa
N
N
Sasaki
T
T
D000328:Adult; D000368:Aged; D000787:Angina Pectoris / Q000000981:diagnostic imaging / Q000628:therapy; D015906:Angioplasty, Balloon, Coronary; D017023:Coronary Angiography; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D013997:Time Factors