Related Experiment Video

Updated: Jan 27, 2026

Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
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Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement

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Counterintuitively Crossing a Critically Stenosed Aortic Valve is a Diastolic Phenomenon

Amer Hawatmeh, Mohammad Thawabi, Nasir Asif

  • 1Department of Cardiology, Newark Beth Israel Medical Center, 201 Lyons Avenue, Newark, NJ 07112 USA. Najam.wasty@RWJBH.org.

The Journal of Invasive Cardiology
|March 31, 2019
PubMed

Insights

Crossing a narrowed aortic valve during cardiac catheterization is crucial. This study hypothesizes and demonstrates that this critical step is best performed during diastole, not systole.

Area of Science:

  • Cardiovascular Medicine
  • Interventional Cardiology
  • Cardiac Physiology

Background:

  • Aortic valve stenosis (AS) crossing is essential for diagnostic and interventional cardiac procedures.
  • Accurate transvalvular gradient measurement is vital, particularly with conflicting clinical and echocardiographic data.
  • Current literature lacks data on the optimal timing (systole vs. diastole) for aortic valve crossing.

Purpose of the Study:

  • To investigate the hypothesis that aortic valve crossing is predominantly a diastolic event.
  • To describe a technique for successfully crossing critically stenosed aortic valves.

Main Methods:

  • The study proposes a specific technique for navigating critically stenosed aortic valves.
  • The technique focuses on performing the crossing maneuver during the diastolic phase of the cardiac cycle.

Main Results:

  • The study hypothesizes that aortic valve crossing occurs during diastole.
  • A technique for crossing stenosed aortic valves is described, implying successful execution during diastole.

Conclusions:

  • Aortic valve crossing in critically stenosed valves is proposed to be a diastolic phenomenon.
  • The described technique facilitates successful aortic valve crossing, aiding in accurate gradient measurement and interventions.

Keywords:
aortic stenosisaortic valve crossingdiastole

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