Evaluation of subclinical left ventricular systolic dysfunction using two-dimensional speckle-tracking

M Swathi Poojary1, Jyothi Samanth1, Krishnananda Nayak1

  • 1Department of Cardiovascular Technology, Manipal College of Health Professions, Manipal Academy of Higher Education, Manipal, 576 104, India.

Insights

Cirrhosis patients (Child-Pugh A/B) show normal cardiac mechanics like longitudinal strain and torsion, but subtle diastolic dysfunction. Higher Model for End-Stage Liver Disease (MELD) scores may indicate a hyperdynamic state.

Area of Science:

  • Cardiology
  • Hepatology
  • Medical Imaging

Background:

  • Liver cirrhosis impacts cardiac hemodynamics, often presenting with functional alterations in end-stage disease.
  • Limited data exists on the relationship between cirrhosis progression, cardiac mechanics, and sub-clinical dysfunction.
  • This study investigates ventricular myocardial mechanics in early-stage cirrhosis (Child-Pugh A/B).

Purpose of the Study:

  • To assess ventricular myocardial mechanics in patients with Child-Pugh A and B cirrhosis.
  • To evaluate cardiac function using speckle tracking and deformation imaging.
  • To identify sub-clinical cardiac dysfunction in early-stage liver cirrhosis.

Main Methods:

  • Prospective evaluation of 70 cirrhosis patients (Child-Pugh A/B) and 62 healthy controls.
  • Standard conventional echocardiography and deformation imaging with rotational echocardiography were performed.
  • Clinical staging utilized Model for End-Stage Liver Disease (MELD) scores and Child-Turcotte-Pugh (CTP) classification.

Main Results:

  • Cirrhosis patients exhibited significantly higher left ventricular (LV) dimensions and volumes compared to controls.
  • Mean ejection fraction (EF) was higher in controls, while left atrial volume was greater in the cirrhosis group, indicating diastolic dysfunction.
  • Global longitudinal strain and torsion parameters showed no statistically significant difference between groups.

Conclusions:

  • Patients with Child-Pugh A and B cirrhosis have preserved longitudinal strain and normal torsion.
  • Subtle diastolic dysfunction is present in these patients.
  • Higher MELD scores may correlate with increased longitudinal strain, potentially due to a hyperdynamic state.
Abstract

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