BT shunt
Also written as: BT — Blalock-Taussig
Abbreviated form of Blalock-Taussig shunt, a systemic-to-pulmonary artery connection.
Full Definition
BT shunt is the commonly used abbreviation for Blalock-Taussig shunt, a surgical connection between a systemic artery and pulmonary artery to increase pulmonary blood flow in cyanotic heart disease. The modified BT shunt uses a synthetic tube graft between the subclavian and pulmonary arteries, while the classic BT shunt involves direct anastomosis. This procedure serves as palliation in complex congenital heart disease requiring staged surgical approach.
Usage
Usage note: Spell out as Blalock-Taussig shunt on first use in formal documents.
In Context
- "The newborn underwent BT shunt placement for severe tetralogy of Fallot." — operative summary
- "Angiography showed good flow through the left BT shunt with adequate pulmonary artery growth." — cardiac catheterization report