The retrospective analysis of results of renewal by sinus rhythm different ways is conducted in 628 patients with atrial flutter (AF). Acute cardiac insufficiency (ACI) episodes arose up at first 12 o’clock after cardioversion (C) in 10 patients (1.59 %).
ACI arose up in 1 case after overdrive pacing, in two cases pharmacologically, in 1 case after renewal of rhythm by radiofrequency ablation and in 6 cases after transthoracic electrical cardioversion. Most cases of ACI developed in patients with long duration of arrhythmia and expressed organic pathology of myocardium.