Long-term angiographic prognosis of lesions dilated by coronary angioplasty.
BACKGROUND
To examine the long-term outcome of coronary angioplasty, lesions that remained patent after 3 to 12 months were monitored angiographically at 3-year intervals. There were 252 lesions successfully dilated (from 83% +/- 13% preprocedural stenosis to 19% +/- 14% residual stenosis) between 1983 and 1986 that remained patent on follow-up angiography (23% +/- 15% stenosis) and were monitored further at our outpatient department.


RESULTS
Repeat angiography was done for 186 lesions at 2 to 4 years and showed that 179 were patent (0% to 50% stenosis), one had mild stenosis (55% to 70% stenosis), and six had severe stenosis (75% to 100% stenosis). Angiography was repeated for 138 lesions at 5 to 7 years, showing that 127 were patent, four had mild stenosis, and seven had severe stenosis. Finally, angiography was performed for 78 lesions at 8 to 10 years, showing that 63 were patent, four had mild stenosis, and 11 had severe stenosis.


CONCLUSIONS
Although numerous lesions were lost to follow-up, most appeared to remain patent for 4 years, after which a significant number developed restenosis.
Kitazume
H
H
Department of Internal Medicine, Bokuto Hospital, Tokyo, Japan.
Kubo
I
I
Iwama
T
T
D015906:Angioplasty, Balloon, Coronary; D017023:Coronary Angiography; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D012008:Recurrence; D013997:Time Factors; D014654:Vascular Patency