bicaval cannulation
A technique for venous drainage during cardiopulmonary bypass using separate cannulas in both venae cavae.
Full Definition
Bicaval cannulation is a method of establishing venous drainage for cardiopulmonary bypass by placing separate cannulas in the superior and inferior venae cavae. This technique allows for complete isolation of the right heart and prevents venous return, which is essential for procedures requiring a dry surgical field such as tricuspid valve surgery, atrial septal defect repair, or complex congenital heart procedures. The approach contrasts with single atrial cannulation and provides better decompression of the right ventricle. Proper terminology distinguishes this from other cannulation strategies in operative reports.
Usage
Usage note: Hyphenate as compound modifier; distinguish from other cannulation techniques.
In Context
- "Bicaval cannulation was performed to facilitate tricuspid valve inspection." — operative report
- "The procedure required bicaval cannulation for complete venous isolation." — surgical description