الفهرس 
Example of PVCsOnly 14 pages are availabe for public view
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Abstract
a control group (50 persons) with PVCs burden ≤ 1% and a study group (50 persons) with PVCs burden >1%. Both groups were age and gender matched and nearly had equal risk factors such as diabetes mellitus, hypertension, dyslipidemia and coronary artery disease.
Our results showed that the mean LVEDV and LVESV were significantly higher among cases than controls (p= 0.019 and 0.023, respectively). Moreover, the mean E/E` was significantly higher among cases than controls (p=0.044). The correlation analysis showed statistically significant correlation between PVC% and LVEDD, LVESV, and E/E’. Although our results showed that there was no significant difference between the two study groups in the terms of LVEF measured by biplane planimetry, there was a statistically significant inverse correlation between PVC% and LVEF by Biplane. Moreover, the mean PVC% was found to be significantly higher among subjects with mid-range ejection fraction than preserved subjects (p<0.001). The logistic regression showed that the PVCs% was an independent predictor of LVEF. Notably, all subjects with mid-range LVEF were males (p<0.001) and had higher incidence of ischemic heart diseases than normal subjects (p=0.025).