OBJECTIVES: To correlate the permeability and clinical evolution of single and multilateral patients, bearers of obstructive atherosclerosis heart disease in the proximal third of the anterior descending coronary artery (DA), who were submitted to myocardial revascularization using the left internal mammary or underwent a drug eluting stent procedure. METHOD: This a case history cohort study in which two centers participated. Three hundred patients were retrospectively analyzed, whose lesions were treated at the proximal one third of the DA: in the G-1 group, 150 patients, underwent myocardial revascularization surgery and, the G-2 group, 150 patients, received drug eluting stents, 95 of them received paclitaxel and 55 received sirolimus. All major adverse cardiovascular events were registered during the period (MACE) during the period between the two procedures and the angiographic restudy. Deaths were not included in these MACE, since all patients were restudied through coronariography. There were clinical and angiographic demographic differences between the two groups: the G-1 patients showed a higher incidence of diabetes (29.3% versus 20.0%, p<0.05) and three artery atherosclerosis disease 50% versus 30.6%, p<0.05) with a lower incidence of one artery (13.3% versus 30.6%, p<0.001). RESULTS: The permeability of the two procedures was quite high in both groups. Those patients free of MACE in G-1 and G-2 were distributed in the following way: in 12 months, 98% versus 97% (NS); in 24 months, 93% versus 94% (NS); and in 32 months, 89% versus 91% (NS). CONCLUSION: Both myocardial revascularization techniques for the treatment of DA showed excellent results, in permeability as well as clinical evolution of the patients.
Myocardial revascularization; Stents; Sirolimus; Paclitaxel; Drug implants
