Single‐Beat Determination of Right Ventricular Function in Patients with Atrial Fibrillation

Abstract

RV FAC correlates positively with RRp/RRpp and single-beat determination of RV function is feasible and accurate in patients with chronic AF.

The right ventricle in patients with chronic heart failure and atrial fibrillation

“…Elongation of the cardiac cycle, thus lengthening the RV filling time results in diastolic volume increase and consequently in increase in RV ejection fraction (RVEF) [4]. Study in a small group of patients showed that in permanent AF the RV function presented as RVFAC is dependent on the RR interval preceding it and on the mean heart rate [37]. In another study in patients with paroxysmal and persistent AF RV end-systolic diameter was markedly larger than in individuals without the arrhythmia (20 ± 2 mm in AF group vs. 17 ± 2 mm in control group).…”

“…RV function in patients with AF is not well defined, although the importance of heart rhythm for the RV function is well known [4,37]. Elongation of the cardiac cycle, thus lengthening the RV filling time results in diastolic volume increase and consequently in increase in RV ejection fraction (RVEF) [4].…”

Catheter Ablation or Surgical Therapy in Moderate-Severe Tricuspid Regurgitation Caused by Long-standing Persistent Atrial Fibrillation. Propensity Score Analysis 

“…The importance of heart rhythm in RV functioning is well known. 20,21 The RV ejection fraction in patients with AF was deteriorated compared to healthy individuals. AF may lead to RV dysfunction and remodeling, which subsequently caused papillary muscle displacement, tethering of TV lea et, tricuspid annular dilation, and TR.…”

Atrial fibrillation and right ventricular failure: reply

“…Indeed, in addition to preload, afterload and muscle contractility, right ventricular (RV) function is determined by heart rhythm, RV filling time, RV systolic synchrony and interdependence between both ventricles. Currently, RV function in patients with atrial fibrillation (AF) is not well defined . However, elongation of the cardiac cycle, which lengthens RV filling time, results in a diastolic volume increase and consequently in an increase in RV ejection fraction (RVEF) .…”

“…However, elongation of the cardiac cycle, which lengthens RV filling time, results in a diastolic volume increase and consequently in an increase in RV ejection fraction (RVEF) . A study conducted in a small group of patients showed that in permanent AF, the RV function presented as RV fractional area change is dependent on the RR interval preceding it and on mean heart rate . In another study carried out in patients with paroxysmal and persistent AF, RV end‐systolic diameter was markedly larger than in individuals without the arrhythmia [mean ± standard deviation (SD) diameter: 20 ± 2 mm in the AF group vs. 17 ± 2 mm in the control group] .…”