Journal of perinatology : official journal of the California Perinatal Association · 2026
Association between ambient noise and physiologic changes in neonates with single-ventricle physiology after the Norwood procedure.
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McGetrick Molly E, Sattari Sulimon, Pande Chetna K, Elhoff Justin J, Savorgnan Fabio
Аннотация
OBJECTIVE: To characterize ambient noise and acute physiologic changes in neonates after Stage 1 Norwood palliation.
STUDY DESIGN: We retrospectively analyzed synchronized sound and physiologic data from 12 neonates >36 weeks' gestation with a Sano or modified Blalock-Taussig-Thomas shunt during the first 48 postoperative hs.
RESULT: Among 1,014,403 audio observations, 25th percentile ambient sound levels were 69.05, 70.35, and 70.75 dBA during postoperative hs 0-12, 12-24, and 24-48, respectively, exceeding published recommendations. Overall, 3936 noisy events were identified. Time in the noisy range increased from 47 min during hs 0-12 to 266 min during hs 24-48. Noisy events were associated with small heart rate increases, somatic near-infrared spectroscopy decreases, and epoch-dependent changes in mean arterial blood pressure.
CONCLUSION: Noisy events were common after Norwood palliation and associated with small physiologic changes consistent with altered systemic perfusion. Prospective studies should evaluate whether noise reduction improves physiologic stability.
STUDY DESIGN: We retrospectively analyzed synchronized sound and physiologic data from 12 neonates >36 weeks' gestation with a Sano or modified Blalock-Taussig-Thomas shunt during the first 48 postoperative hs.
RESULT: Among 1,014,403 audio observations, 25th percentile ambient sound levels were 69.05, 70.35, and 70.75 dBA during postoperative hs 0-12, 12-24, and 24-48, respectively, exceeding published recommendations. Overall, 3936 noisy events were identified. Time in the noisy range increased from 47 min during hs 0-12 to 266 min during hs 24-48. Noisy events were associated with small heart rate increases, somatic near-infrared spectroscopy decreases, and epoch-dependent changes in mean arterial blood pressure.
CONCLUSION: Noisy events were common after Norwood palliation and associated with small physiologic changes consistent with altered systemic perfusion. Prospective studies should evaluate whether noise reduction improves physiologic stability.