Investigation of left ventricular changes according to valve type in patients with surgical replacement due to isolated aortic stenosis

Mean age was 64.4 ± 13.0 years, while the gender distribution was 41.7% women and 58.3% men. Of the valves used in patients, 39.2% were mechanical, 18.1% were porcine, 8.5% were bovine pericardial and 34.2% were sutureless valves. Analysis independent of the valve groups observed LVEDD, LVESD, maximum gradient, mean gradient, PAP, LVM and LVMI values reduced significantly postoperatively (<i>p</i> < 0.001). EF was observed to increase by 2.1% (<i>p</i> = 0.008). Comparisons of the four valve groups revealed that LVEDD, LVESD, maximum gradient, mean gradient, LVM and LVMI significantly decreased in all groups. EF significantly increased only in the sutureless valve group (<i>p</i> = 0.006). Analysis of PPM groups showed that LVESD, maximum gradient, mean gradient, PAP, LVM and LVMI were significantly reduced in all groups. In the normal PPM group, there was an improvement in EF, which was significantly different to the other groups (<i>p</i> = 0.001), while in the severe PPM group, EF appeared to be reduced ( <i>p</i> = 0.19).