bidirectional Glenn
Palliative cardiac surgery connecting the superior vena cava directly to the pulmonary arteries.
Full Definition
The bidirectional Glenn procedure, also known as the bidirectional cavopulmonary anastomosis, is a palliative cardiac surgery performed as an intermediate stage in single ventricle heart disease management. The operation involves dividing the superior vena cava and connecting it end-to-side to the right pulmonary artery, allowing venous blood from the upper body to flow passively to both lungs. This procedure typically serves as a bridge between initial palliation and eventual Fontan completion.
Usage
Usage note: Distinguish from 'classic Glenn' which connects SVC to right PA only; 'bidirectional' indicates flow to both PAs.
In Context
- "The patient underwent bidirectional Glenn at six months of age for hypoplastic left heart syndrome." — Surgical history
- "Oxygen saturation improved to 85% following the bidirectional Glenn procedure." — Postoperative note