RT Journal Article
SR Electronic
T1 Early remodelling of coronary stenoses after thrombolytic treatment in patients with acute myocardial infarction.
JF British Heart Journal
JO Heart
FD BMJ Publishing Group Ltd and British Cardiovascular Society
SP 229
OP 234
DO 10.1136/hrt.74.3.229
VO 74
IS 3
A1 D. Tousoulis
A1 F. Andreotti
A1 D. Hackett
A1 A. W. Haider
A1 A. Maseri
A1 G. Davies
YR 1995
UL http://heart.bmj.com/content/74/3/229.abstract
AB OBJECTIVE--To assess the frequency of early remodelling of coronary stenosis morphology after thrombolytic treatment in patients with acute myocardial infarction. DESIGN--Coronary angiograms were analysed by a computerised edge detection analysis system. Coronary stenosis severity was measured and morphology classified as smooth or complex. PATIENTS--Coronary arteriograms were obtained approximately 90 min and 24 h after thrombolytic treatment from 40 patients with acute myocardial infarction. MAIN RESULTS--Stenosis morphology was complex in 22 patients (65%) and smooth in 11 (32%) 90 min after thrombolysis. The morphology of 11 (50%) complex coronary stenoses and three (27%) smooth stenoses had changed at 24 h (P < 0.05). The transition from complex to smooth was associated with a reduction in stenosis severity from 65 (4)% to 51 (5)% (P < 0.05). The stenosis severity was 63 (4)% and 60 (5)% in those with persistently complex morphology, and 56 (7)% and 50 (5)% in those with persistently smooth morphology at 90 min and 24 h respectively (NS). CONCLUSIONS--Transition of morphology from complex to smooth within 24 h is common. This transition is associated with a reduction in stenosis severity of a degree greater than that found in persistently smooth stenoses over the same interval. 50% of stenoses are smooth at 24 h.