Energetic performance index improvement after Glenn and Damus-Kaye-Stansel procedure using vector flow mapping...

Area of Science:

• Cardiovascular Surgery
• Pediatric Cardiology
• Medical Imaging

Background:

• Echocardiography vector flow mapping (VFM) is crucial for assessing dynamic intracardiac flow in congenital heart disease (CHD) management.
• VFM aids in evaluating surgical efficacy by quantifying parameters like energy loss and kinetic energy.
• This study focuses on VFM application during Glenn and Damus-Kaye-Stansel procedures for CHD treatment.

Purpose of the Study:

• To evaluate the efficacy of Glenn and Damus-Kaye-Stansel procedures using echocardiography vector flow mapping.
• To assess intracardiac flow dynamics, energy loss, and left ventricular output kinetic energy.
• To determine the impact of these procedures on the energetic performance index and cardiac workload.

Main Methods:

• A 9-month-old patient with congenital heart disease underwent Glenn and Damus-Kaye-Stansel procedures.
• Vector flow mapping (VFM) was employed to analyze intracardiac flow and hemodynamic parameters.
• Measurements included energy loss, left ventricular output kinetic energy, and energetic performance index before and after surgical interventions.

Main Results:

• Energy loss decreased post-Glenn procedure, correlating with reduced left ventricular preload.
• Kinetic energy initially decreased post-Damus-Kaye-Stansel procedure, potentially due to preload dependency.
• An improved energetic performance index was observed post-surgery, indicating enhanced cardiac workload efficiency.

Conclusions:

• Vector flow mapping effectively demonstrated the efficiency of Glenn and Damus-Kaye-Stansel procedures in managing congenital heart disease.
• VFM provides valuable insights into hemodynamic changes and cardiac performance following complex CHD surgeries.
• The study highlights the utility of VFM in assessing surgical outcomes and optimizing cardiac function in pediatric patients.