Smart Graft Monitoring After the Fontan Operation

Area of Science:

• Pediatric Cardiology
• Biomedical Engineering
• Surgical Innovation

Background:

• The Fontan operation creates a unique physiology with elevated venous pressure and low cardiac output in children with congenital heart disease.
• Current monitoring requires invasive cardiac catheterization in a specialized lab setting, limiting real-world data.
• Accurate, noninvasive pressure monitoring is needed for optimal Fontan patient management.

Observation:

• The CardioMEMS sensor, typically used for heart failure management, was sutured into the Fontan conduit during the operation.
• This placement aimed to enable direct measurement of Fontan pathway pressures.
• The goal was to assess the feasibility of noninvasive pressure retrieval.

Findings:

• The study hypothesizes that the implanted CardioMEMS sensor can accurately measure Fontan pressures noninvasively.
• This method would provide continuous, real-world hemodynamic data outside the catheterization lab.
• Successful implantation and data retrieval are anticipated.

Implications:

• This innovation could revolutionize Fontan patient follow-up, enabling proactive management.
• Noninvasive monitoring may lead to earlier detection of complications and improved long-term outcomes.
• It offers a less burdensome and more comprehensive approach to assessing Fontan physiology.