[Phase analysis of the normal and postectopic left ventricular contractions in nonejection click-telesystolic apical murmur syndrome].
ECG, PCG, CSG and ACG were synchronously recorded in 25 patient with non-expulsion click syndrome -- telesystolic murmur as well as in 62 cardiac healthy subjects. With the investigation of the systolic and diastolic intervals, a prolongation of the transformation period was established (Q--1 = 72 +/- 12 msec) and a shortening of the isovolumetric relaxation (A2--0 = 63 +/- 10 msec). The ratio PPE/LVET (period prior to expulsion/left venticular expulsion time) is normal in patients with nonexpulsion click -- telesystolic apical murmur but the comparison of PPE/LVET with a normal contraction with that of the first post extrasystolic contraction shows a statistically significant shortening. The ratio PPE/LVET in prolapse of the mitral valve prior to extrasystole is 0.39 +/- 0.02, and during the first contraction with intensified stroke after a compensatory pause is 0.31 +/- 0.03 (p less than 0.02). The possibility for explanation of the changes in phase analysis are discussed and a conclusion is drawn that they reflect the existence of deviation in the left ventricular mechanics and hemodynamics in case of mitral valve prolapse.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002339:Carotid Arteries / Q000503:physiopathology; D003971:Diastole; D004562:Electrocardiography; D005260:Female; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D007702:Kinetocardiography; D008297:Male; D008875:Middle Aged; D008945:Mitral Valve Prolapse / Q000503:physiopathology*; D009200:Myocardial Contraction; D010701:Phonocardiography; D011674:Pulse; D013599:Systole
Fazov analiz na normalni i postektopichni liavokamerni sukrashteniia pri sindroma na neizgonvasht klik-telesistolen apikalen shum.