Long stenting in native coronary arteries: relation between vessel size and outcome.
Procedural and 6-mo clinical outcomes were evaluated in 34 consecutive patients who had stenting (<40 mm) of a long segment of coronary artery. Procedural success was achieved in 32 (96%) patients. Before stenting, 32 (96%) patients had Canadian Cardiovascular Society Class 3 or 4 angina compared to 7 (21%) at 6-mo follow-up (P<0.001). Eleven patients (32%) suffered either acute/subacute stent thrombosis (n=4) or restenosis (n=7). On logistic regression distal reference diameter <2.5 mm (odds ratio 26, P<0.01) and previous cardiac intervention (odds ratio 9.0, P<0.01) were independent predictors of a major adverse event during follow-up. There was no significant association between outcome and indication for stenting, type of stent, or use of ticlopidine and aspirin. These results indicate that distal vessel diameter <2.5 mm is a powerful predictor of subacute thrombosis or restenosis after long coronary artery stenting.
Kerr
A J
AJ
Department of Cardiology, Dunedin Hospital, New Zealand.
Stewart
R A
RA
Low
C J
CJ
Restieaux
N J
NJ
Wilkins
G T
GT
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015906:Angioplasty, Balloon, Coronary; D017023:Coronary Angiography; D001026:Coronary Artery Bypass; D003327:Coronary Disease / Q000000981:diagnostic imaging / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000175:diagnosis / Q000601:surgery; D011446:Prospective Studies; D012008:Recurrence; D012086:Reoperation; D015607:Stents / Q000009:adverse effects; D016896:Treatment Outcome