[Multicenter study of intracoronary stent implantation in Rio de Janeiro].
OBJECTIVE
To evaluate retrospectively stent implantation (SI) in patients with coronary artery disease (CAD) performed in 7 hospitals in Rio de Janeiro.


METHODS
From June/94 to December/96 2,220 procedures were performed among which we analyzed 783 SI in 660 (29.7%) patients using coronary angiography without digital subtraction. Several types of stents were used: Palmaz-Schatz (40.9%), Gianturco-Roubin (29.1%) e NIR (22.0%). Indications for SI: 1--de novo lesion (67.9%); 2) restenotic lesion (16.0%); 3) sub-optimal results after PTCA (8.2%); 4) abrupt or threatened closure after PTCA (4.9%); 5) chronic occlusion (3.0%). All stents were implanted using high pressure balloon inflation without intracoronary ultrasound guidance. Sub-acute stent thrombosis prevention, in the majority of patients (87.8%) was done with ticlopidine and aspirin.


RESULTS
Early outcome: a) the success rate of SI in 770 lesions was 98.0% in 646 (97.9%) patients; b) the clinical success rate in 634 patients was 96.0%; c) the major complications were acute myocardial infarction (1.1%); coronary artery bypass graft (1.4%) and death (0.8%); d) vascular complications with surgical correction and/or bleeding occurred in 3.0%. Late outcome: a) the clinical follow-up of 399 (60.4%) and the coronary angiographies of 121 patients (30.3%) showed in-stent lesion in 79 (19.8%); b) other event rates: myocardial infarction (1.5%); coronary bypass (2.3%); death: 1.0% and other PTCA or similar procedure (12.5%).


CONCLUSIONS
This multicentric study showed that SI for CAD can be performed with safety, high early success rate, few complications and low rate of cardiac events during the late follow-up.
Romão
N
N
Prontocor (Prontocine Serviço de Hemodinâmica), São Lucas, Rio de Janeiro.
Ferreira
E
E
Feldman
C A
CA
Vilella
R
R
Costa
N
N
Rodrigues
C V
CV
Pessanha
A
A
Fuks
V
V
Leandro
S M
SM
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001938:Brazil; D003327:Coronary Disease / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D015607:Stents
Estudo multicêntrico do implante de stent intracoronário no Rio de Janeiro.