Nose-close and Abdomen-compression in Pediatric Flexible Bronchoscopy

Infants with body weight (BW) \<5.0 kg and receiving nasal diagnostic or interventional FB were enrolled. Under NPO (0.5 L/kg/min), when infant's heart rate (HR) \<80 beats/min or oxygen saturation (SpO2) \<85% for more than 10 seconds, rescue NC-AC was initiated. It was performed by (1) increased NPO flow to 0.5-1.0 L/kg/min; (2) NC 1 second for inspiration; and (3) AC 1 second for expiration with simultaneously released nostrils. Repeat doing steps (2) and (3) at a rate of 30 cycles/min until HR, SpO2, and blood pressure (BP) returned to normal.