Related Experiment Video
Updated: Aug 11, 2026

Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots
Published on: May 21, 2017
Aortic valve replacement in patients with aortic stenosis. Effect on cardiac arrhythmias
Abstract:
Twenty-four hour ambulatory electrocardiography was performed on 28 patients with aortic stenosis without significant coronary artery disease or aortic regurgitation. Compared to a control group of subjects with normal hearts proven by noninvasive and invasive testing, patients with aortic stenosis had higher (p = 0.0001) frequency of premature ventricular contractions (PVC) (3144 +/- 1425 versus 17 +/- 46) per 24 hours and higher (p = 0.001) prevalence of PVC presence (27 of 28 patients versus 39 of 101 normal), and complexity (19 of 28 patients versus 4 of 101 normal). Weak correlations of complexity with left ventricular end-diastolic pressure (r = 0.30) and ejection fraction (r = -0.25) were noted. No correlation of ventricular ectopic activity with peak systolic gradient, aortic valve area, or peak left ventricular systolic pressure was noted. Repeat 24-hour ambulatory electrocardiography performed on 13 patients three months after successful aortic valve replacement did not show significant effect of aortic valve replacement on PVC frequency or complexity.
More Related Videos
Related Concept Videos
Disturbances in Heart Rhythm
Arrhythmias are categorized by their speed, rhythm, and origin. A slow heart...
Mitral Stenosis I: Introduction
Mitral Stenosis III: Medical Management
Mitral Stenosis IV: Nursing Management
Aortic Regurgitation I: Introduction
Aortic Regurgitation III: Medical Management

