Continuous Infusion Versus Bolus Dosing for Pain Control After Pediatric Cardiothoracic Surgery

Inclusion Criteria: * Age 3 months - 4 years (48 months) * Anticipated cardiothoracic surgery with midline sternotomy incision * Planned early extubation (e.g. within 3 hours post surgery) Exclusion Criteria: * Presence of renal insufficiency defined as a creatinine greater than 0.8mg/dL on the standard basic metabolic profile sent after surgery or history of chronic renal failure. * Significant development delay that the bedside nurse or treating physician judges would make pain scoring difficult (Down syndrome is not excluded) * History of bleeding disorder or gastrointestinal bleed within the past 2 months. * Presence of chronic hepatic disease or elevation of AST or ALT greater than 250 U/L before or after surgery. * More than 3 previous surgeries with a sternotomy incision (this may alter pain perception). * Children on immunosuppressants