Exogenous noise has deleterious effects on the developing fetus and infant. The aim of this quality improvement project was to lower the mean ambient noise level within a level IV neonatal intensive care unit (NICU) by 10% from the baseline in one year. Multiple noise reduction strategies were tested through Plan-Do-Study-Act cycles based on the Institute for Healthcare Improvement model for improvement. Strategies targeted environmental and behavioral modifications. Noise levels were recorded continuously; means and peaks were calculated. The mean noise level decreased from 62.4 dB to 56.1 dB, and peak noise level decreased from 115 dB to 76 dB within 12 months. Day shift noise level decreased by 7.7 dB; night shift noise level decreased by 4.9 dB from baseline. Targeted education, behavioral, and environmental modifications decreased the noise level in the NICU as per the study aim. To create a change in culture, constant dialogue between the project champions and the NICU staff is necessary.

Older GA, male gender and higher platelet count at time of treatment of hemodynamically significant PDA are predictors of successful ductal closure with indomethacin.

Infants with AREDF are sicker at birth and have more feeding difficulties; after adjusting for BW and GA, Doppler flow was no longer a significant predictor of feeding intolerance.

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