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Aortic Regurgitation I: Introduction

Aortic Regurgitation I: Introduction

IntroductionAortic regurgitation is characterized by the backward flow of blood from the aorta into the left ventricle during diastole and arises from the improper closure of the aortic valve. This condition results in left ventricular volume overload and can stem from both acute and chronic etiologies, each contributing uniquely to the disease's progression and symptomatology.Acute and Chronic CausesAcute aortic regurgitation often results from events that suddenly impair the integrity of the...

Aortic Regurgitation III: Medical Management

Aortic Regurgitation III: Medical Management

Aortic regurgitation (AR) is when the aortic valve does not close or seal properly, leading to backward blood circulation from the aorta into the left ventricle during diastole. Common causes of AR include rheumatic heart disease, congenital valve defects, and aortic root dilation. Managing AR requires a multifaceted approach to alleviate symptoms, preserve left ventricular function, and address the underlying cause of the regurgitation. Patients with symptomatic AR or significant left...

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Related Experiment Video

Updated: May 7, 2026

Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots

Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots

Published on: May 21, 2017

Sutureless aortic valves: timing, technique, and evidence.

Shubh K Patel¹, Syed M Ali Hassan², Nitish K Dhingra²

¹Temerty Faculty of Medicine, University of Toronto.

Current Opinion in Cardiology

|February 17, 2026

Summary

This summary is machine-generated.

Sutureless aortic valve replacement (SuAVR) offers significant benefits, including reduced procedure times and improved outcomes, especially for elderly patients and complex cases. Further research is needed to confirm long-term efficacy and optimize pacemaker avoidance.

Keywords:

aortic stenosis perceval valve surgical aortic valve replacement surgical technique sutureless aortic valve replacement

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Technique and Patient Selection Criteria of Right Anterior Mini-Thoracotomy for Minimal Access Aortic Valve Replacement

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Published on: March 26, 2018

Area of Science:

Cardiovascular Surgery
Minimally Invasive Cardiac Surgery
Aortic Valve Disease

Background:

Sutureless aortic valve replacement (SuAVR) is an evolving technique in cardiac surgery.
Understanding its role relative to conventional surgical aortic valve replacement (SAVR) and transcatheter aortic valve implantation (TAVI) is crucial.

Purpose of the Study:

To synthesize current evidence on SuAVR, focusing on indications, sizing, technique, outcomes, and complications.
To determine where SuAVR offers advantages over SAVR and TAVI.

Main Methods:

Review of contemporary studies on SuAVR.
Analysis of data regarding operative times, valve performance, and complication rates.
Evaluation of mid-term durability and reintervention rates.

Main Results:

SuAVR significantly reduces cardiopulmonary bypass and cross-clamp times (25-50%).
It yields low gradients, large effective orifice areas, and is beneficial in specific patient groups (elderly, small annuli, redo surgery).
Paravalvular leak and permanent pacemaker implantation rates are low (single digits) with optimized techniques.

Conclusions:

SuAVR is a valuable surgical option, expanding candidacy for minimally invasive and complex procedures when selected by a Heart Team with standardized protocols.
Long-term randomized trials and standardized pacemaker-avoidance strategies are necessary for widespread adoption.