In pediatric cardiac patients with shunt dependent pulmonary circulation, Qp/Qs ratio is a important parameter indicating the balance of pulmonaty and systemic circulation. This study will calculate Qp/Qs using variables measured using non-invasive monitors (cerebral oximeter and pulse oximeter). This value will be compared with Qp/Qs calculated using variables obtained from blood sample.
Blood sampling will be performed in both arterial and central venous lines.
Study Type
OBSERVATIONAL
Enrollment
29
Op/Qs -monitor will be calculated using SpO2 and cerebral oximetry Op/Qs -blood will be calculated using ABGA and VBGA
Seoul National University Hospital
Seoul, South Korea
the difference between Qp/Qs-monitor and Qp/Qs-blood
the difference between Qp/Qs-monitor (measure by pulse oximeter and NIRS) and Qp/Qs-blood (measured by blood gas analysis)
Time frame: within 1 week after surgery
the difference between SpO2 and SaO2
the difference between SpO2 (measure by pulse oximeter)and SaO2 (measured by blood gas analysis)
Time frame: within 1 week after surgery
the difference between cerebral oximeter score and and SmvO2
the difference between cerebral oximeter (measure by NIRS)and SmvO2 (measured by blood gas analysis)
Time frame: within 1 week after surgery
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