The effects of FC on hemodynamic parameters were assessed using a paired Student's t-test for normally distributed variables or a nonparametric Wilcoxon Signed Rank test for non-normally distributed variables. The comparison of hemodynamic parameters between both groups at baseline and after FC was assessed using a two sample Student's t-test or a nonparametric Mann-Whitney U test. Results were expressed as mean values±SD or median (25-75 percentiles).