Copyright © 1989 by the European Society of Cardiology.
© 1989 The European Society of Cardiology
Percutaneous transluminal coronary angioplasty more than twice for the same coronary lesion
Catharina Hospital, Eindhoven The Netherlands
Correspondence to: Dr M. El Gamal, Department of Cardiology, Catharina Hospital, Michelangelolaan 2, 5623 EJ Eindhoven, The Netherlands
To determine outcome and predictors of restenosis after three or more PTC As for the same coronary lesion we studied 23 patients (17 patients three PTC As; five patients four PTC As; one patient six PTC As). The primary success rate was 100%. Myocardial infarction was seen in one patient; there was no emergency surgery or mortality. Duration of follow-up after the last PTC A was 11–58 months (mean 26 months). Restenosis occurred in 6 of 23 patients (26·1%) after the last PTCA. The symptom-free interval before the last PTCA was
5 months in five of these six patients, a larger balloon for the last PTCA was used in two patients. After the last PTCA 17 of the 23 patients (73·9%) were asymptomatic; repeat angiography in seven of them revealed no restenosis. The symptom-free interval before the last PTCA was <3 months in eight patients, and a larger balloon was used in six of these. In nine patients the interval was > 3 months, and a larger balloon was used in two. When the symptom-free interval before the last PTCA was
3 months, restenosis occurred in two of eight patients (25%) in whom a larger balloon was used, but in three of five patients (60%) in whom a larger balloon was not used. When the interval before the last PTCA was
5 months five of 13 patients (38·5%) developed restenosis, but when it was > 3 months only one of 10 patients did so.
Key Words: Repeat PTC A restenosis balloon size symptom-free interval
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