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Author Spotlight: Exercise Test for Evaluation of the Functional Efficacy of the Pig Cardiovascular System
Published on: May 12, 2023
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Utility of Exercise Testing to Assess Aortic Recoarctation
Thomas M Zellers1, David J Driscoll1
1Mayo Clinic and Mayo Foundation, Section of Pediatric Cardiology, 200 First Street S.W., Rochester, MN 55905, USA.
Pediatric Exercise Science
|February 2, 2023
Summary
Exercise testing is frequently used by pediatric cardiologists to evaluate patients post-coarctation repair. Key hemodynamic measures like arm-leg gradient and maximal exercise systolic blood pressure help identify recurrent coarctation.
Area of Science:
- Pediatric Cardiology
- Cardiovascular Physiology
- Clinical Exercise Testing
Background:
- Coarctation of the aorta repair requires ongoing monitoring for recurrence or persistence.
- The role and uniformity of exercise testing in post-coarctation evaluation are not well-established.
Purpose of the Study:
- To determine the frequency of exercise testing (ET) in evaluating patients after coarctation repair.
- To identify hemodynamic measures from ET indicative of significant persistent or recurrent coarctation.
Main Methods:
- A questionnaire survey was distributed to 80 randomly selected pediatric cardiologists.
- 49 completed questionnaires were analyzed to assess ET practices and indicator interpretation.
Main Results:
- Approximately 50% of respondents used ET for all post-coarctation repair patients; 75% tested at least half.
- Supervisors of exercise laboratories utilized ET more frequently.
- Rest arm-leg gradient, maximal exercise systolic blood pressure, and postexercise arm-leg gradient were prioritized indicators.
Conclusions:
- Exercise testing is a commonly employed tool in the post-coarctation repair follow-up.
- Clinicians rely on specific hemodynamic parameters during ET to assess for recoarctation, aligning with existing guidelines.
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