The dynamics of left ventricular contraction was studied in 107 patients with cardiac fibrillation 1 and 6-8 days after restoration of sinus rhythm by electroimpulsive therapy. It has been found that contraction of the left ventricle improves markedly 24 hours after the sinus rhythm is restored and practically does not change by the 6th -8th day after that. On the grounds of such dynamics of left ventricular contraction it is concluded that it is quite sufficient to observe complete bedrest after successful defibrillation for 24 hours, since the risk of normalization embolisms and pulmonary edema sharply diminishes beginning 24 hours after the sinus rhythm has been restored. It is shown that the dynamics of myocardial contration following restoration of the sinus rhythm cannot serve for the prognostication of the remote results of electroimpulsive therapy.
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