Copyright © 1993 by the European Society of Cardiology.
© 1993 The European Society of Cardiology
Repeat percutaneous coronary angioplasty; clinical and angiographic follow-up in patients with stable or unstable angina pectoris
Service de Cardiologie B et Hémodynamique, Hôpital Cardiologique, Boulevard du Professeur J Leclercq 59037 Lille Cedex, France
Received 19 December 1991; revised 10 July 1992; .
Correspondence: Prof M. E. Bertrand, Service de Cardiologie B et Hémodynamique, Hôpital cardiologique, Boulevard du Professeur J Leclercq, 59037 Lille Cedex France
Abstract
This study analyses the immediate outcome and the risk of recurrent restenosis in patients who, at the time of repeat coronary angioplasty for a first restenosis, had unstable (n = 50), 19%) or stable (n = 218, 81%) angina. Successful angioplasty was accomplished in 250 (93%) patients, 222 (89%) of whom hadfollow-up angiography. Mean time from initial to repeat angioplasty was shorter (P = 0.0002) and angiographic evidence of thrombus was commoner (P = 0.0001) in the unstable group. Major complications (coronary artery bypass grafting or myocardial infarction) were morefrequent (P <0.01) in the unstable group (6% vs 0.5%); no procedure-related deaths occurred. The angiographic rate of restenosis was significantly higher in the unstable group (61% vs 43%, P <0.05). Despite this high rate of recurrent restenosis, most of the patients in both groups were either asymptomatic or had atypical chest pain at follow-up.
Repeat coronary angioplasty, in patients with unstable angina, has a high primary success rate but a higher risk of acute complications than in patients with stable angina. The angiographic rate of restenosis was significantly higher in unstable than in stable patients, however, the clinical status of most patients was improved at follow-up.
Key Words: Coronary angioplasty • unstable angina • restenosis
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