Simple technique to verify CO(2) diffusion with the CarbonAid™ device.

It has become common practice in cardiac surgery to flood the operative field with CO2 to facilitate deairing of the heart. However, CO2 delivery is variable and verification of CO2 delivery can be challenging. We report a simple, reliable method to confirm CO2 delivery. This technique ensures that the benefits of CO2 delivery are provided to the patient during the operation.