Jáuregui RO, Palacios RJM, Cruz RO, Bazzoni RA, Reyes DS, Muñiz GA

Language: Spanish
References: 30
Page: 100-105
PDF size: 81.57 Kb.

ABSTRACT

Objective: To compare the implantation of stent with predilatation versus the direct stent technique, and to evaluate intrahospitalary outcomes and the 6 month follow up results. Methods: Seven hundred and forty six patients were included, the trial period was between January 2000 and September 2002, inclusion criteria were the following: age from 20 to 80 years old, 1 or 2 lesions susceptible to angioplasty, > 60% of stenosis, > 2.5 mm artery, exclusion criteria included the following: vessel tortuosity, complete occlusion (TIMI 0-1), excessive angulation in the coronary artery, restenosis, graft artery, native artery with graft and more of one lesion in the same coronary. Results: All the patients were included in two groups, 231 in direct stent group and 515 in the predilatation group, the demography characteristics were equal in both groups, the anterior descendent artery was the most frequently treated, (49.7% vs 60%), followed by the right coronary artery (24.6 vs 28.1), the acute gain was greater in the group with dilatation, (3.24 vs 3.19) and the residual stenosis in this group (7 ± 2% vs 3 ± 3%), the length of the implanted stent, impactation pressures, and number of treated vessels were equal in both groups, the predominant lesion was B1 (39.1% vs 33%), there was more acute thrombosis in the direct stent group (1.73% vs 1.55, RR 1.12 IC 0.2-5 p = 0.02), intrahospitalary angina was more frequent in the direct stent group (RR 1.23 IC 0.2-7 p = 0.01), in the 6 month of follow up there was a greater number of cardiac deaths (RR 1.76 IC 0-181 p = 0.02) in the direct stent group and more revascularization of treated vessels (RR 1.05 IC 0.6-1.6 p = 0.05). Conclusions: The clinical outcome in the 6 month follow up after the angioplasty with direct stent is better than the implantation with predilatation technique, with a smaller incidence of acute major cardiovascular events and a lesser need of treated coronary vessel revascularization.

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