NIRS Monitoring
Neonatal sensors were applied to the right or left forehead and to the lower left abdominal quadrant for the first week of life and then reapplied for 48 hours during subsequent RBC transfusions to monitor Csat and Msat with NIRS (INVOS 5100C [Medtronic]). A Mepitel (Molnycke) skin dressing was used for skin protection under the sensors and has previously been shown not to interfere with validity of NIRS measurements.