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Updated: May 1, 2026

Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots
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Early Surgery for Patients With Asymptomatic Severe Aortic Stenosis: A Meta-Analysis of Randomized Controlled Trials

Yousif Ahmad1, James P Howard2, Henry Seligman2

  • 1Section of Cardiovascular Medicine, Yale School of Medicine, Yale University, New Haven, Connecticut.

Journal of the Society for Cardiovascular Angiography & Interventions
|August 12, 2024
PubMed

Insights

Early surgical aortic valve replacement (SAVR) significantly reduces mortality and heart failure hospitalizations in patients with asymptomatic severe aortic stenosis (AS). This finding challenges current watchful waiting guidelines for this patient group.

Area of Science:

  • Cardiology
  • Cardiac Surgery
  • Clinical Trials

Background:

  • Current guidelines recommend watchful waiting for asymptomatic severe aortic stenosis (AS).
  • This approach is based on historical nonrandomized data.
  • Randomized controlled trials (RCTs) now provide evidence on early surgical aortic valve replacement (SAVR).

Purpose of the Study:

  • To perform a meta-analysis of RCTs comparing early SAVR to watchful waiting in asymptomatic severe AS.
  • To focus on the individual endpoints of death and heart failure (HF) hospitalization.

Main Methods:

  • Systematic identification of all RCTs comparing early SAVR versus watchful waiting in asymptomatic severe AS.
  • Data synthesis using a random-effects meta-analysis.
  • Primary endpoint: all-cause mortality.

Main Results:

  • Two trials with 302 patients were included.
  • Early SAVR showed a 55% reduction in all-cause mortality (HR, 0.45; P=.014).
  • Early SAVR demonstrated a 79% reduction in HF hospitalization (HR, 0.21; P=.044).

Conclusions:

  • Early SAVR reduces death and HF hospitalization in severe asymptomatic AS with normal ejection fraction.
  • This challenges current treatment standards and guidelines for AS management.
  • Findings have significant implications for clinical care and future guideline development.
Abstract

Keywords:
Meta-analysisrandomized controlled trialssevere aortic stenosis

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