conduit
A tubular graft used to establish blood flow between cardiac chambers or vessels during congenital heart surgery.
Full Definition
In cardiothoracic surgery, a conduit refers to a tubular graft that creates a pathway for blood flow between cardiac structures. Conduits are commonly used in congenital heart surgery, particularly for procedures like the Fontan circulation or in cases where direct anatomical repair is not possible. They can be made from various materials including synthetic materials (Dacron, PTFE), biological tissues (homografts), or the patient's own vessels. The choice of conduit depends on patient size, expected growth, and the specific anatomical requirements of the repair. Conduit durability and potential for growth are critical considerations in pediatric applications.
Usage
Usage note: Specify material and size when documenting conduit placement.
In Context
- "A 20-mm Dacron conduit was used to establish continuity between the right ventricle and pulmonary artery." — Operative report