LV Function Mostly Preserved After ASO - Summary - MDSpire

LV Function Mostly Preserved After ASO

CMR findings were largely reassuring in most patients, although late gadolinium enhancement was identified in a minority.

  • By

  • Andrea Surnit

  • May 13, 2026

  • 4 min

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Objective:

To assess left ventricular function in patients with d-transposition of the great arteries after arterial switch operation using cardiac magnetic resonance imaging.

Key Findings:
  • Most patients had preserved left ventricular function post-ASO.
  • Median left ventricular ejection fraction (LVEF) was 60%; 17% had reduced LVEF.
  • Neoaortic regurgitation was generally mild, with one case of severe regurgitation.
  • Late gadolinium enhancement (LGE) was present in 9.6% of patients, indicating potential myocardial scar tissue.
Interpretation:

The findings suggest that CMR assessment of LV function is reassuring for most patients post-ASO, with a need for long-term surveillance as patients age.

Limitations:
  • Retrospective, single-center design.
  • Small sample size and exclusion of some studies due to inadequate imaging.
  • Lack of longitudinal follow-up and variability assessment.
Conclusion:

CMR is valuable for assessing LV function and detecting scar tissue in patients post-ASO, highlighting the importance of ongoing monitoring as patients transition to adulthood.

Original Source(s)

LV Function Mostly Preserved After ASO

  • by Andrea Surnit

  • May 13, 2026

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