Evaluation of left ventricular function in patients with heart failure after myocardial infarction by real-time

Yanling Miao1, Xiaoning Kang1

  • 1Department II of Ultrasound, Cangzhou Central Hospital Cangzhou, China.

Insights

Serum biomarkers cardiac troponin I (cTnI) and heart-type fatty acid-binding protein (H-FABP) correlate with left ventricular function in heart failure patients post-myocardial infarction, aiding early diagnosis.

Area of Science:

  • Cardiology
  • Biomarkers
  • Echocardiography

Background:

  • Heart failure (HF) post-myocardial infarction (MI) significantly impacts left ventricular (LV) function.
  • Early and accurate assessment of LV function is crucial for managing HF patients.

Purpose of the Study:

  • To evaluate LV function in HF patients post-MI using real-time three-dimensional transesophageal echocardiography (RT-3D-TEE).
  • To explore the correlation between LV function parameters and serum levels of cardiac troponin I (cTnI) and heart-type fatty acid-binding protein (H-FABP).

Main Methods:

  • Retrospective analysis of 60 HF patients post-MI and 50 healthy controls.
  • Measurements included left atrial diameter, septal and posterior wall thickness, LV volumes, and ejection fraction (LVEF) via RT-3D-TEE.
  • Serum cTnI and H-FABP levels were determined using ELISA.

Main Results:

  • HF patients exhibited impaired LV structure and function, with elevated serum cTnI and H-FABP compared to controls.
  • Cardiac function grade correlated positively with LV end-diastolic volume (LVEDV), LV end-systolic volume (LVESV), cTnI, and H-FABP, and negatively with LVEF.
  • Serum cTnI and H-FABP levels correlated with LV volumes and LVEF, with both identified as risk factors for HF, while LVEF was protective.

Conclusions:

  • Serum cTnI and H-FABP levels are closely related to LV function parameters in HF patients.
  • Combining RT-3D-TEE with serum biomarker analysis (cTnI, H-FABP) offers significant clinical value for the early diagnosis of HF.
Abstract

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