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Published on: March 28, 2025
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Off-pump bidirectional Glenn through right anterior thoracotomy.
Maximo Guida1, Andrea Lo Cascio1, Gustavo Guida1
1Fundacardio Foundation, Valencia, Venezuela.
Summary
The Glenn operation, a palliative surgery for cyanotic heart disease, can be performed without cardiopulmonary bypass. This study explores its use with an off-pump technique in Latin America, where it has not been previously reported.
Area of Science:
- Cardiovascular Surgery
- Pediatric Cardiology
- Congenital Heart Disease
Background:
- The Glenn operation is a palliative surgical procedure for cyanotic congenital heart diseases, including single ventricle physiology.
- The classic Glenn procedure utilizes median sternotomy and cardiopulmonary bypass.
- The benefits of performing the Glenn operation without cardiopulmonary bypass remain a subject of mixed reports in existing literature.
Observation:
- This study investigates the application of the Glenn operation using an off-pump technique.
- The research focuses on the use of this combined approach in Latin America.
- Cases combining the Glenn operation with an off-pump technique in Latin America have not been previously documented in scientific literature.
Findings:
- The study examines the outcomes and feasibility of the Glenn operation performed without cardiopulmonary bypass in the Latin American context.
- Analysis of cases using the off-pump technique for the Glenn procedure in this region is presented.
- This represents the first report of the Glenn operation combined with an off-pump technique in Latin America.
Implications:
- This research may provide valuable insights into alternative surgical strategies for congenital heart defects in resource-limited settings.
- The findings could encourage further investigation into the benefits and challenges of off-pump Glenn operations globally.
- This study contributes to the scientific literature by documenting a novel application of a known surgical procedure in a specific geographic region.

