Massive coronary gas embolism managed by retrograde coronary sinus perfusion.

A case of massive coronary air embolism occurred during cardiopulmonary bypass because the rotation of the pump suction line, which was connected to the aortic root vent needle, was mistakenly reversed. An embolism injured the heart and caused severe functional impairment. After completion of the procedure (double vein bypass graft), the patient could not be disconnected from bypass. However, successful management with temporary retrograde coronary sinus perfusion was quickly achieved.