Long-term angiographic follow-up results in patients undergoing percutaneous transluminal coronary angioplasty.
Long-term effects following percutaneous transluminal coronary angioplasty (PTCA) were examined using follow-up coronary angiography (CAG) in 49 lesions in cases in which the procedure was considered to be successful. Follow-up CAG was performed 2-5 times (average, 2.7 times) per patient during a period of 1 year to 3 years and 7 months (average, 1 year and 10 months). The luminal diameter of the PTCA sites was expressed as the percentage of the value immediately after the procedure. Narrowing by 10% or more was observed in 17 lesions 3-8 months after PTCA but in only 4 lesions on the final CAG. The luminal diameter of the PTCA site was significantly greater (p less than 0.05) 2 years after PTCA in comparison to the findings after 1 year. These results suggest excellent long-term effects at the PTCA site.
Mikuriya
Y
Y
Second Department of Internal Medicine, Midical College of Oita, Japan.
Wakayama
K
K
Kadota
M
M
Matsumoto
Y
Y
Tamura
A
A
Yano
S
S
Kanzaki
K
K
Kataoka
H
H
D015906:Angioplasty, Balloon, Coronary; D017023:Coronary Angiography; D003331:Coronary Vessels / Q000473:pathology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male