Rinshu Shimabukuro1,2, Kozo Takase2, Sachiko Ohde3, Isao Kusakawa1. 1. Department of Pediatrics, St Luke's International Hospital, Tokyo, Japan. 2. Department of Research Development, Division of Public Health, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan. 3. Center for Clinical Epidemiology, Graduate School of Public Health Planning Office, St Luke's International University, Tokyo, Japan.
Abstract
BACKGROUND: The use of neonatal three-lead electrocardiograms (Neo-ECG) is suggested for the assessment of heart rate (HR) in neonatal resuscitation, but primary childbirth facilities (i.e. maternity clinics or maternity homes) are not sufficiently equipped for this. The aim of this study was to therefore to confirm the potential of a handheld fetal Doppler device (FDD), widely used to assess HR in labor room resuscitation, and to compare its equivalency to Neo-ECG. METHODS: In low-risk full-term infants, HR was measured five times per minute in minutes 1-5 after delivery using the FDD and Neo-ECG, and their equivalence compared. The equivalence margin was set at a HR difference of <±5 beats/min and <±5%. Moreover, the times at which HR was displayed were measured for both methods. RESULTS: FDD and Neo-ECG HR correlated strongly (r = 0.977) in 155 measurements in 33 cases. The mean HR difference was -0.123 beats/min (95%CI: -0.594 to +0.345), and the logarithmic transformation of the HR ratio was -0.0003 (95%CI: -0.0020 to +0.0015). The mean HR difference and HR ratio were within the equivalence margin. For HR assessment using the FDD, 155 of 165 measurements (93.9%) could be obtained in <10 s. CONCLUSIONS: In HR assessment, FDD is a valid substitute for Neo-ECG in primary childbirth facilities that are not sufficiently equipped for Neo-ECG.
BACKGROUND: The use of neonatal three-lead electrocardiograms (Neo-ECG) is suggested for the assessment of heart rate (HR) in neonatal resuscitation, but primary childbirth facilities (i.e. maternity clinics or maternity homes) are not sufficiently equipped for this. The aim of this study was to therefore to confirm the potential of a handheld fetal Doppler device (FDD), widely used to assess HR in labor room resuscitation, and to compare its equivalency to Neo-ECG. METHODS: In low-risk full-term infants, HR was measured five times per minute in minutes 1-5 after delivery using the FDD and Neo-ECG, and their equivalence compared. The equivalence margin was set at a HR difference of <±5 beats/min and <±5%. Moreover, the times at which HR was displayed were measured for both methods. RESULTS:FDD and Neo-ECG HR correlated strongly (r = 0.977) in 155 measurements in 33 cases. The mean HR difference was -0.123 beats/min (95%CI: -0.594 to +0.345), and the logarithmic transformation of the HR ratio was -0.0003 (95%CI: -0.0020 to +0.0015). The mean HR difference and HR ratio were within the equivalence margin. For HR assessment using the FDD, 155 of 165 measurements (93.9%) could be obtained in <10 s. CONCLUSIONS: In HR assessment, FDD is a valid substitute for Neo-ECG in primary childbirth facilities that are not sufficiently equipped for Neo-ECG.
Authors: Nicolò Morina; Peter A Johnson; Megan O'Reilly; Tze-Fun Lee; Maryna Yaskina; Po-Yin Cheung; Georg M Schmölzer Journal: Front Pediatr Date: 2020-01-31 Impact factor: 3.418