[The clinical, angiographic and procedural predictors of thrombosis and restenosis in Micro stent II (AVE) coronary stents].
The aim of the study was to assess the incidence and the predictors of thrombosis and restenosis in Micro stent II AVE. In a sample of 197 stents successfully implanted in 181 consecutive patients, the incidence of thrombosis was 4.1%. The multivariate analysis showed the minimum lumen diameter post-stenting to be the only independent predictor of overall thrombosis. In fact, we found that the risk of thrombosis increases as the minimal lumen diameter decreases. Angiographic follow-up was available in 74% of the stents at 6.8 +/- 4.1 months and stent restenosis occurred in 26.2% of cases. Independent predictors of restenosis (multivariate linear discriminant analysis) were: 1) nominal stent diameter (the risk of restenosis decreases as the stent diameter increases); 2) the ratio between the diameter of the balloon carrying the stent measured at the maximum pressure/nominal stent diameter (the risk increases as the ratio decreases); 3) stented vessel (the risk increases in the following order: right coronary < circumflex < left anterior descending); 4) the American Heart Association classification of lesion morphology (the risk increases in the order A < B < C); 5) a lower risk was found in the absence of diabetes mellitus.
Parma
A
A
Dipartimento di Cardioscienze, Azienda Ospedaliera San Camillo-Forlanini, Roma.
Lioy
E
E
Loschiavo
P
P
Salati
A
A
Pucci
E
E
Prati
F
F
Magliocchetti
N
N
Santoboni
A
A
D000368:Aged; D015906:Angioplasty, Balloon, Coronary / Q000706:statistics & numerical data; D015331:Cohort Studies; D017023:Coronary Angiography / Q000706:statistics & numerical data; D003327:Coronary Disease / Q000000981:diagnostic imaging* / Q000628:therapy; D003328:Coronary Thrombosis / Q000000981:diagnostic imaging* / Q000628:therapy; D016002:Discriminant Analysis; D004867:Equipment Design; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D011379:Prognosis; D011446:Prospective Studies; D012008:Recurrence; D012189:Retrospective Studies; D012307:Risk Factors; D015607:Stents / Q000009:adverse effects* / Q000706:statistics & numerical data; D013997:Time Factors
Predittori clinici, angiografici e procedurali di trombosi e di restenosi in stent coronarici Micro stent II (AVE).