The Accuracy of Noninvasive and Continuous Hemoglobin Measurement by Pulse CO-Oximetry™ in Children Undergoing Volume Expansion

Measuring total hemoglobin(tHb) is a precious step to decide to start or to stop transfusion during operation. The newly developed instrument pulse CO-Cooximetry (Masimo) makes noninvasive monitoring of venous hemoglobin level (SpHb).

The objective of this study

• to compare the simultaneous level of tHb and SpHb during operation and after volume expansion in children
• to assess the accuracy of amount of acute change of SpHb on Masimo and tHb

Inclusion Criteria: children under 10 years old how are diagnosed as

• brain tumor
• intraabdominal tumor
• intrathoracic tumor
• craniosynostosis
• scoliosis

Exclusion Criteria:

• cardiopulmonary disease
• preoperative infection
• genetic disease
• hematologic disease