aortic root vent

Full Definition

An aortic root vent is a thin catheter inserted into the ascending aorta or aortic root to continuously aspirate air bubbles and residual blood during cardiac surgery. This venting prevents air embolism and maintains a dry surgical field when the heart is opened. The vent is typically connected to suction and remains active throughout the procedure until adequate de-airing is achieved. Proper vent placement and function are critical for preventing systemic air embolism, particularly to the coronary and cerebral circulations.

Usage

Usage note: Distinguish from aortic cannula used for arterial return from bypass circuit.

In Context

• "The aortic root vent was functioning well with continuous aspiration of air and blood." — operative report
• "Placement of the aortic root vent preceded opening of the left ventricle." — surgical procedure note