Donor Left Ventricular Function Assessed by Echocardiographic Strain is a Novel Predictor of Primary Graft Failure

Hemamalini Palani1, Govini Balasubramani2

  • 1Institute of Heart and Lung Transplantation, Gleneagles Global Health City, Chennai, India.

Insights

Assessing donor left ventricular global longitudinal strain (LV GLS) using echocardiography can predict primary graft failure (PGF) after heart transplantation (HT). Impaired donor LV GLS is an independent predictor of PGF, aiding in better patient outcomes.

Area of Science:

  • Cardiology
  • Transplantation Medicine
  • Echocardiography

Background:

  • Primary graft failure (PGF) is a significant complication following orthotopic heart transplantation (HT).
  • Accurate prediction of PGF is crucial for improving patient outcomes and donor selection.
  • Donor cardiac function assessment is vital in predicting post-transplant graft survival.

Purpose of the Study:

  • To evaluate the utility of donor left ventricular global longitudinal strain (LV GLS) by echocardiography in predicting PGF after HT.
  • To identify independent predictors of PGF in adult patients undergoing isolated HT.

Main Methods:

  • Retrospective observational study of 100 adult patients undergoing isolated HT.
  • Collected demographic, clinical, and echocardiographic data, including donor LV GLS derived from 2D speckle-tracking echocardiography.
  • Analyzed donor variables and procedural factors for association with PGF using univariate and multivariate Cox regression analyses.

Main Results:

  • PGF occurred in 40% of patients.
  • Donor LV GLS, along with RADIAL score, emerged as significant independent predictors of PGF in multivariate analysis (p < 0.001).
  • LV GLS at -11.5% demonstrated high predictive accuracy for PGF (AUC = 0.889, sensitivity 92.5%, specificity 65%).

Conclusions:

  • Impaired donor LV GLS is an independent predictor of PGF after orthotopic heart transplantation.
  • Echocardiographic assessment of donor LV GLS can enhance risk stratification for PGF.
  • This finding supports the integration of LV GLS into donor evaluation protocols for HT.
Abstract

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