Author + information
- Received January 10, 1986
- Revision received April 2, 1986
- Accepted April 16, 1986
- Published online September 1, 1986.
- Michel E. Bertrand, MD, FACC*,1,
- Jean M. LaBlanche, MD1,
- François A. Thieuleux, MD1,
- Jean L. Fourrier, MD1,
- Gilles Traisnel, MD1 and
- Philippe Asseman, MD1
- ↵*Address for reprints: Michel E. Bertrand, MD, Service de Cardiologie B et hémodynamique, Hopital Cardiologique, 59037 Lille Cedex, France.
This study compares the results of percutaneous transluminal coronary angioplasty in a group of 132 patients (group A) with fixed atherosclerotic narrowing (no spontaneous or ergonovine-provoked spasm) and in a group of 97 patients (group B) with dynamic coronary stenosis (spasm superimposed on the stenosis). All these patients underwent complete follow-up angiography. The rate of restenosis (defined as a loss of 50% of the initial gain) was significantly higher in patients in group B (dynamic coronary stenosis) than in group A (fixed narrowing) (35 versus 22%, p < 0.05). Despite treatment with a calcium antagonist, coronary artery spasm persisted in 44% of the patients in group B and was detected for the first time in 15% of the patients in group A.
Thus, in patients with dynamic coronary stenosis, the results of coronary angioplasty were less satisfactory than in patients with fixed narrowing, and in both groups coronary artery spasm was frequently (64%) superimposed on the restenosis.
- Received January 10, 1986.
- Revision received April 2, 1986.
- Accepted April 16, 1986.
- American College of Cardiology Foundation