1983
DOI: 10.1016/0002-8703(83)90194-1
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The hemodynamic consequences of cardiac arrhythmias: Evaluation of the relative roles of abnormal atrioventricular sequencing, irregularity of ventricular rhythm and atrial fibrillation in a canine model

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Cited by 205 publications
(107 citation statements)
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“…Hemodynamic impairment due to variation in R-R intervals during AF has been demonstrated in a canine model with complete heart block, in which cardiac output fell by approximately 9% during irregular ventricular pacing at the same mean cycle length as a regularly paced rhythm. 182 In patients undergoing AV nodal ablation, irregular right ventricular (RV) pacing at the same rate as regular ventricular pacing resulted in a 15% reduction in cardiac output. 183 Myocardial contractility is not constant during AF because of force-interval relationships associated with variations in cycle length.…”
Section: Myocardial and Hemodynamic Consequences Of Atrial Fibrillationmentioning
confidence: 99%
“…Hemodynamic impairment due to variation in R-R intervals during AF has been demonstrated in a canine model with complete heart block, in which cardiac output fell by approximately 9% during irregular ventricular pacing at the same mean cycle length as a regularly paced rhythm. 182 In patients undergoing AV nodal ablation, irregular right ventricular (RV) pacing at the same rate as regular ventricular pacing resulted in a 15% reduction in cardiac output. 183 Myocardial contractility is not constant during AF because of force-interval relationships associated with variations in cycle length.…”
Section: Myocardial and Hemodynamic Consequences Of Atrial Fibrillationmentioning
confidence: 99%
“…AF contributes to decline of left ventricular systolic and diastolic function over time (32,33), which may promote progression of CKD through altered cardiac hemodynamics (33,34). Animal studies have also suggested that AF may directly and adversely affect renal hemodynamics.…”
Section: Discussionmentioning
confidence: 99%
“…Multiple mechanisms are responsible for the detrimental hemodynamic consequences during AF. These include the increase in heart rate, the loss of atrial contribution to ventricular filling, the reduced interval for passive diastolic filling, and the irregular ventricular rhythm (3,7,9,15,24,26,33,35,40). Clinically, VR slowing is considered to be the first therapeutic step in a majority of patients with both acute and chronic AF (16).…”
Section: Discussionmentioning
confidence: 99%