The application of nasal synchronized intermittent mandatory ventilation in primary apnea of prematurity.

We aimed to evaluate the efficacy of nasal synchronized intermittent mandatory ventilation (nSIMV) in preterm infants with primary apnea of prematurity (AOP). Forty-four preterm infants with AOP were divided into the nSIMV group or nasal continuous positive airway pressure (nCPAP) group. Clinical symptoms, signs and blood gas results following nSIMV or nCPAP were compared between the two groups.