Study Status: Not yet recruiting
Recruit Status: Not yet recruiting
Study Type: Observational
Official Title: Observational Study on Monitoring of Systemic or Organ Blood Circulation and Perfusion for Preterm Infants
Brief Summary: To investigate biomarker reflects systemic or specific organ perfusion well, we are going to the observational comparison study using several hemodynamic monitoring methods in the premature infants. It includes near-infrared spectroscopy (NIRS), pulse oximetry with perfusion index (PI) and pleth variability index (PVI) and functional echocardiography.