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Assessment of breath sounds at birth using digital stethoscope technology

10$
ARTICLE DOWNLOAD

Assessment of breath sounds at birth using digital stethoscope technology

10$

Ashwin Ramanathan, Faezeh Marzbanrad, Kenneth Tan, Fatema-Tuz Zohra, Mathieu Acchiardi, Robert Roseby, Ajay Kevat & Atul Malhotra 

Abstract

Newborn transition is a phase of complex change involving lung fluid clearance and lung aeration. We aimed to use a digital stethoscope (DS) to assess the change in breath sound characteristics over the first 2 h of life and its relationship to mode of delivery. A commercially available DS was used to record breath sounds of term newborns at 1-min and 2-h post-delivery via normal vaginal delivery (NVD) or elective caesarean section (CS). Sound analysis was conducted, and two comparisons were carried out: change in frequency profiles over 2 h, and effect of delivery mode. There was a significant drop in the frequency profile of breath sounds from 1 min to 2 h with mean (SD) frequency decreasing from 333.74 (35.42) to 302.71 (47.19) Hz, p < 0.001, and proportion of power (SD) in the lowest frequency band increasing from 0.27 (0.11) to 0.37 (0.15), p < 0.001. At 1 min, NVD infants had slightly higher frequency than CS but no difference at 2 h.

Conclusion: We were able to use DS technology in the transitioning infant to depict significant changes to breath sound characteristics over the first 2 h of life, reflecting the process of lung aeration.

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Year 2020
Language English
Format PDF
DOI 10.1007/s00431-019-03565-8