cardiotomy reservoir
Component of the cardiopulmonary bypass circuit that collects and filters blood aspirated from the surgical field before returning it to the patient.
Full Definition
A specialized reservoir within the cardiopulmonary bypass circuit designed to collect blood suctioned from the operative field (cardiotomy suction) and other sources such as vents and drainage. The cardiotomy reservoir typically includes filters and defoaming chambers to remove air, debris, and embolic material before the blood is processed and returned to the patient's circulation. This component is crucial for blood conservation during cardiac surgery, as it allows salvage and reuse of blood that would otherwise be lost. Modern cardiotomy reservoirs often incorporate leucocyte depletion filters and may be integrated with cell salvage systems to improve blood quality and reduce inflammatory response.
Usage
Usage note: Distinguish from venous reservoir, which collects systemic venous return.
In Context
- "Blood from the cardiotomy reservoir was filtered before being returned to the bypass circuit." — perfusion note
- "The cardiotomy reservoir level was monitored throughout the procedure to ensure adequate blood salvage." — operative report