Relationship Between Parameters of VOT Using NIRS and Clinical Outcomes in Pediatric Cardiac Surgery

Pediatric SomaSensor for INVOS 5100C is attached at calf muscle and non-invasive blood pressure cuff is applied to ipsilateral thigh. VOT is performed as: after baseline oxygen saturation value is recorded, cuff pressure is rapidly increased to 30 mmHg over than systolic blood pressure. After 3 minutes of ischemic time, cuff pressure is rapidly decreased. It is performed at 3 time periods : before start of operation, during cardiopulmonary bypass, and after weaning from cardiopulmonary bypass.