Clinical meaning of uncomplicated coronary dissections after stent implantation (original) (raw)

2004, Arquivos brasileiros de cardiologia

To assess the influence of uncomplicated coronary dissections in the incidence of target vessel revascularization and cardiovascular events after 1 year. Patients treated from June 1996 to December 2000, with data prospectively collected and uncomplicated dissections (G1, n=36), were compared with those patients without dissections (G2, n=871). Data were assessed with SPSS 8.0 statistical software, the outcomes were compared with the Kaplan-Meier curve, and the significance level was assessed using the log-rank test. Clinical features were similar in both groups: G1 had lower mean reference diameters (P<0.0001), a greater number of patients with type C lesions (P=0.01), a lower final lumen diameter at the end of the procedure (P=0.003), and a greater balloon/artery ratio (P<0.0001). In the multivariate analysis, only the reference diameter and the artery/balloon ratio were independently associated with the presence of residual dissections. No statistically significant differen...

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