Intermediate
Technical
IVT
venous cannulation
Placement of large-bore catheters into major veins to drain deoxygenated blood during cardiopulmonary bypass.
Full Definition
Venous cannulation involves the strategic placement of cannulas into the superior and/or inferior vena cavae or right atrium to divert venous blood away from the heart during cardiopulmonary bypass. Single or bicaval cannulation techniques may be used depending on the surgical procedure. Proper positioning and secure fixation are essential to prevent air entrainment and ensure adequate venous drainage for effective bypass support.
Usage
Usage note: Specify single vs. bicaval cannulation strategy in surgical documentation.
In Context
- "Bicaval venous cannulation was performed for optimal surgical exposure." — Operative report
- "Single right atrial venous cannulation provided adequate drainage throughout the procedure." — Perfusion record
Also known as
venous drainage
systemic venous cannulation
Contrasted with
arterial cannulation
decannulation
Don't confuse with
arterial cannulation
central line placement