[Wiktor stent in de novo lesions: immediate results in 100 consecutive patients].
BACKGROUND
Randomized trials which compare different stents are lacking and the studies to test the behavior of the Wiktor stent in de novo lesions have not been substantiated by large numbers and with consistent results.


METHODS
The lesions were predilated with a conventional balloon 1/2 mm smaller in diameter than the stent to be used. The overdilation was done with the same balloon in which the stent comes mounted. The quantitative coronary analysis was "off line" by the automatic edge detection method with the CMS system by Medis. The post implantation treatment was aspirin and ticlopidine in most of the patients and they were discharged 24-48 hours after the procedure.


RESULTS
In one hundred consecutive patients 112 Wiktor stents were attempted to treat 106 de novo lesions. All stents but one were successfully implanted. The quantitative coronary analysis of the treated lesions showed a pre-procedure minimal luminal diameter of 0.85 +/- 0.65 mm for a reference diameter of 3.18 +/- 0.49 mm. The minimal luminal diameter after stent implantation was 2.97 +/- 0.39 mm for a reference diameter of 3.42 +/- 0.46 mm. The diameter stenosis changed from 73 +/- 18% pre-procedure to 13 +/- 9% after stent implantation. One patient was sent to emergency surgery. Another patient was referred for a semiselective bypass surgery. There was no mortality. One patient suffered a non Q wave myocardial infarction. There were no important bleeding complications. There were no cases of subacute thrombosis. All the patients were contacted by telephone one month after the procedure.


CONCLUSIONS
In this study we have demonstrated that Wiktor stent implantation is associated with excellent immediate results. The new model makes stent implantation a rapid, safe and relatively easy procedure. If the angiographic result is good, there is no need for an stringent anticoagulation regimen. We have to wait for long term clinical and angiographic results to determine the role of Wiktor stent in novo lesions.
García
E
E
Departmento de Cardiología, Hospital General Universitario Gregorio Marañón, Madrid.
Botas
J
J
Elízaga
J
J
Pérez de Prado
A
A
Abeytua
M
M
Soriano
J
J
Bermejo
J
J
Fernández
A
A
Sarnago
F
F
Delcán
J L
JL
D003327:Coronary Disease / Q000601:surgery*; D004867:Equipment Design; D005260:Female; D006801:Humans; D008297:Male; D015607:Stents; D013997:Time Factors
Stent de Wiktor en lesiones de novo: resultados inmediatos en 100 pacientes consecutivos.