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Related Experiment Video

Updated: May 14, 2026

Wireless Telemetry Device Implantation in a Fontan Ovine Model for Continuous and Long-Term Hemodynamic Monitoring
06:29

Wireless Telemetry Device Implantation in a Fontan Ovine Model for Continuous and Long-Term Hemodynamic Monitoring

Published on: May 2, 2025

Fontan Surgery in a Middle-Income Country: Outcomes and Modifiable Factors Potentially Associated with Risk - A

Renata Medina Dos Santos1, Marcelo Goulart Correia2, Andrey José de Oliveira Monteiro3

  • 1Instituto Nacional de Cardiologia Division of Research Rio de Janeiro Rio de Janeiro Brazil Division of Research, Instituto Nacional de Cardiologia, Rio de Janeiro, Rio de Janeiro, Brazil.

Brazilian Journal of Cardiovascular Surgery
|May 12, 2026
PubMed
Summary

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The Fontan procedure for functionally univentricular hearts in Brazil showed decreased mortality with increased surgical volume and extubation rates. Postoperative acute kidney injury significantly predicted in-hospital mortality.

Area of Science:

  • Cardiology
  • Pediatric Cardiac Surgery
  • Congenital Heart Disease

Background:

  • Functionally univentricular hearts affect nearly 10% of pediatric congenital heart defect cases.
  • The Fontan procedure is a critical intervention for these patients.
  • Data on Fontan procedure outcomes in middle-income countries are limited.

Purpose of the Study:

  • To evaluate outcomes of the Fontan procedure in a Brazilian pediatric cohort.
  • To identify factors influencing mortality and morbidity.
  • To assess trends in mortality over time.

Main Methods:

  • Retrospective observational study of pediatric patients undergoing the Fontan procedure from 2007-2020.
  • Data collected from medical records at a public cardiac surgery referral center in Brazil.
Keywords:
Brazil.Congenital Heart DefectsFontan ProcedureMortalityUniventricular Heart

Related Experiment Videos

Last Updated: May 14, 2026

Wireless Telemetry Device Implantation in a Fontan Ovine Model for Continuous and Long-Term Hemodynamic Monitoring
06:29

Wireless Telemetry Device Implantation in a Fontan Ovine Model for Continuous and Long-Term Hemodynamic Monitoring

Published on: May 2, 2025

  • Analysis included preoperative characteristics, surgical details, and postoperative outcomes.

    • Main Results:

    • 78 children underwent the Fontan procedure, predominantly for tricuspid atresia, at a mean age of 12.1 years.
    • Thirty-day mortality was 13.0%, decreasing significantly from 22.9% to 4.8% after 2015.
    • Increased surgical volume, operating-room extubation rates, and postoperative acute kidney injury were key findings.

    Conclusions:

    • Fontan procedure was performed at a relatively late age in this cohort.
    • Mortality reduction correlated with increased surgical volume and extubation rates.
    • Postoperative acute kidney injury is a strong predictor of in-hospital mortality, highlighting the importance of perioperative care.