Bidirectional Glenn procedure
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# Bidirectional Glenn Procedure
The Bidirectional Glenn Procedure is a type of heart surgery used primarily in the treatment of congenital heart defects. It is a palliative procedure that is often performed as part of a staged surgical approach to managing complex heart conditions, particularly those involving single ventricle physiology.
History[edit | edit source]
The Bidirectional Glenn Procedure was developed as an evolution of the original Glenn shunt, which was first described by Dr. William Glenn in 1958. The original procedure involved creating a direct connection between the superior vena cava and the right pulmonary artery, allowing for passive blood flow to the lungs. The bidirectional modification allows blood to flow to both lungs, improving oxygenation and reducing the workload on the heart.
Indications[edit | edit source]
The procedure is typically indicated for patients with congenital heart defects that result in a single functional ventricle. These conditions include:
Procedure[edit | edit source]
The Bidirectional Glenn Procedure involves the following steps:
1. Preparation: The patient is placed under general anesthesia, and the chest is opened via a median sternotomy. 2. Isolation of the Superior Vena Cava: The superior vena cava is isolated and divided. 3. Anastomosis: The superior vena cava is then anastomosed to the right pulmonary artery, allowing venous blood to flow directly into the pulmonary circulation. 4. Closure: The chest is closed, and the patient is monitored in the intensive care unit.
Outcomes[edit | edit source]
The Bidirectional Glenn Procedure is generally well-tolerated and can significantly improve the quality of life for patients with single ventricle physiology. It reduces the volume load on the heart and improves oxygenation. However, it is not a curative procedure and is often followed by the Fontan Procedure as part of a staged surgical approach.
Complications[edit | edit source]
Potential complications of the Bidirectional Glenn Procedure include:
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Contributors: Prab R. Tumpati, MD
