Five years of angiographic and clinical follow-up after successful percutaneous transluminal coronary angioplasty.
The first 67 consecutive patients (77 lesions) who underwent successful coronary angioplasty (PTCA) at our hospital were clinically followed with serial exercise testing over a 5-year (4 to 7) observation period. Two sequential angiographic controls were performed 6.9 +/- 4.6 (64 patients) and 49.5 +/- 21.6 (42 patients) months after PTCA. The 5-year risk of cardiac death was 8%, of myocardial infarction 2%, or coronary artery bypass grafting 16% and of repeat PTCA 8%. At 5 years, 67% of the patients remain asymptomatic. Restenosis greater than or equal to 70% diameter was observed within the first year after PTCA in 30% of the patients. Progression of coronary artery disease (CAD) was observed in 13 patients (20%). In the first angiographic control, CAD progression was 4% (3/77) in dilated and 3% (3/115) in non-dilated arteries (ns). In the second angiographic control, it was 7% (3/45) and 10% (8/81), respectively (ns). Thus good clinical and angiographic results are still observed after 5 years. Restenosis is an early, self-limited, time-restricted phenomenon that occurs in 30% of patients. Angioplasty does not appear to accelerate CAD progression.
Guiteras
P
P
Department of Hemodynamics, Hospital de la Santa Creu and Sant Pau, Barcelona, Spain.
Tomas
L
L
Varas
C
C
Augé
J M
JM
Masotti
M
M
Crexells
C
C
Oriol
A
A
D000787:Angina Pectoris / Q000000981:diagnostic imaging / Q000628:therapy; D015906:Angioplasty, Balloon, Coronary; D017023:Coronary Angiography; D003327:Coronary Disease / Q000000981:diagnostic imaging / Q000628:therapy*; D004562:Electrocardiography; D005080:Exercise Test; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D012008:Recurrence