[The motion characteristics of the interventricular septum and their effect on cardiac hemodynamics in patients with an implanted pacer].
The paper presents echocardiographic findings of 91 patients with implantable pacemaker. Ventricular septal motion was found to be abnormal in 59 out of 65 patients with endocardial stimulation. Moreover, they had early systolic motion and paradoxal septal contraction. Three types of abnormal septal motion were identified. In these patients, ECG recorded a picture of left bundle branch block. With myocardial stimulation, ventricular septal motion was normal. In abnormal septal motion, left ventricular ejection fraction was much lower than that in normal septal motion. Endocardial stimulation of the right ventricle is hemodynamically inferior to myocardial stimulation of the left ventricle. Abnormal ventricular septal motion associated with abnormal asynchronism in ventricular performance is one of the cause of the above phenomenon.
Tatarchenko
I P
IP
Iskenderov
B G
BG
D002908:Chronic Disease; D004452:Echocardiography / Q000187:drug effects; D004562:Electrocardiography / Q000187:drug effects; D005260:Female; D006321:Heart / Q000187:drug effects / Q000503:physiopathology*; D006346:Heart Septum / Q000187:drug effects / Q000503:physiopathology*; D006439:Hemodynamics / Q000187:drug effects; D006801:Humans; D006973:Hypertension / Q000175:diagnosis / Q000503:physiopathology / Q000628:therapy; D008297:Male; D008875:Middle Aged; D009068:Movement / Q000187:drug effects; D017202:Myocardial Ischemia / Q000175:diagnosis / Q000503:physiopathology / Q000628:therapy; D010138:Pacemaker, Artificial; D013328:Strophanthins
D013328:Strophanthins; C029082:strophanthin K
Osobennosti dvizheniia mezhzheludochkovoĭ peregorodki i ikh vliianie na kardiogemodinamiku u bol'nykh s implantirovannym kardiostimuliatorom.