Immediate Effect on Cardiac Output of Reversion to Sinus Rhythm from Rapid Arrhythmias
- 8 August 1970
- Vol. 3 (5718) , 315-318
- https://doi.org/10.1136/bmj.3.5718.315
Abstract
Cardiac output was estimated immediately before and after conversion to sinus rhythm in nine patients with rapid arrhythmias. Conversion was by synchronized direct-current shock in eight patients, and by direct atrial wall stimulation in the other. In seven patients there was an immediate increase in cardiac output after restoration of sinus rhythm. The percentage increase in output was directly proportional to the rate of the arrhythmia immediately before conversion (r=0·91, P<0·01). The critical heart rate, above which an immediate increase in cardiac output might be expected on conversion to sinus rhythm, appeared in these patients to be about 160 beats per minute.Keywords
This publication has 23 references indexed in Scilit:
- Alterations in Cardiac Function Immediately Following Electrical Conversion of Atrial Fibrillation to Normal Sinus RhythmCirculation, 1968
- Left atrial function after electrical conversion to sinus rhythm.Heart, 1968
- Natural history and clinical significance of arrhythmias after acute cardiac infarction.Heart, 1967
- Cardiac Hemodynamics During Stimulation of the Right Atrium, Right Ventricle, and Left Ventricle in Normal and Abnormal HeartsCirculation, 1966
- Hemodynamic consequences of atrial and ventricular arrhythmias in manAmerican Heart Journal, 1965
- Effects of Changing Heart Rate in Man by Electrical Stimulation of the Right AtriumCirculation, 1965
- Acute Effects of Countershock Conversion of Atrial Fibrillation upon Right and Left Heart HemodynamicsCirculation, 1965
- The Changes in Cardiac Output with Reversion of Atrial Fibrillation to Sinus RhythmCirculation, 1965
- BEHAVIOR OF STROKE VOLUME AT REST AND DURING EXERCISE IN HUMAN BEINGS *Journal of Clinical Investigation, 1960
- Catheter Replacement of the Needle in Percutaneous Arteriography: A new techniqueActa Radiologica, 1953