Effect of Ventricular Extrasystoles on Closure of Mitral Valve

摘要: Mitral valve function was assessed by roentgen videodensitometry. reflux rare when single ventricular ectopic systoles were produced electronic stimulation of the right or left ventricle at various times in cardiac cycle. It also during compensatory pause after systole with following postectopic systole. Recurrent interposed once per cycle associated minor introduced mid-cycle. Such extrasystoles occurred late enough for to relax primary and mitral open before extrasystole. The extrasystolic contractions were, however, weak incapable opening aortic valve. When early cycle, potentiation contraction occurred, no minimal observed.