A comparative evaluation of portable Doppler ultrasound versus electrocardiogram in heart-rate accuracy and acquisition time immediately after delivery: a multicenter observational study

Agrawal, Gopal; Kumar, Anil; Wazir, Sanjay; Kumar, Nalin; Shah, Piyush; Nigade, Amit; Nagar, Nandini; Kumar, Surender; Kumar, Kishore

doi:10.1080/14767058.2019.1656193

Cited by 7 publications

(9 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Agrawal et al and Kayama et al included a range of both healthy and asphyxiated neonates at term or preterm [5,7]. Zanardo et al [3], Shimabukuro et al [4], and Goenka et al [6].…”

Section: Resultsmentioning

confidence: 99%

The Use of Foetal Doppler Ultrasound to Determine the Neonatal Heart Rate Immediately after Birth: A Systematic Review

Hutchon

2022

Children

View full text Add to dashboard Cite

Determining the neonatal heart rate immediately after birth is unsatisfactory. Auscultation is inaccurate and provides no documented results. The use of foetal Doppler ultrasound has been recognised as a possible method of determining the neonatal heart rate after birth over the last nine years. This review includes all published studies of this approach, looking at accuracy, speed of results, and practical application of the approach. Precordial Doppler ultrasound has been shown to be as accurate as ECG and more accurate than oximetry for the neonatal heart rate, and provides quicker results than either ECG or oximetry. There is the potential for a much improved determination and documentation of the neonatal heart rate using this approach.

show abstract

“…Agrawal et al and Kayama et al included a range of both healthy and asphyxiated neonates at term or preterm [5,7]. Zanardo et al [3], Shimabukuro et al [4], and Goenka et al [6].…”

Section: Resultsmentioning

confidence: 99%

The Use of Foetal Doppler Ultrasound to Determine the Neonatal Heart Rate Immediately after Birth: A Systematic Review

Hutchon

2022

Children

View full text Add to dashboard Cite

show abstract

“…Doppler ultrasound has been used to acquire HR during resuscitation and found to have similar accuracy to the ECG method while acquiring the signals faster, although the quality of signal during infant's movement and crying was a limitation. 7,8 The focus of amplification of heartbeat is not to acquire more accurate reading of the HR compared with other methods but to provide early and equal access to all members of the team about the most important information about the status of the infant (HR). The major advantage of our method (amplification) was the ability for all participants involved in the resuscitation to be aware of the HR of the infant, which we strongly believe made documentation and preparing for the next intervention by the team much easier.…”

Section: Discussionmentioning

confidence: 99%

“…Our study was unique for applying a new method of amplification of the heartbeat sounds and testing for recognition of rapid HR changes. Doppler ultrasound has been used to acquire HR during resuscitation and found to have similar accuracy to the ECG method while acquiring the signals faster although the quality of signal during infant's movement and crying was a limitation [8,9]. The focus of amplification of heartbeat is not to acquire more accurate reading of the HR compared to other methods but to provide early and equal access to all members of the team about the most important information about the status of the infant (HR).…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Amplification of Heart Sounds Using Digital Stethoscope in Simulation-Based Neonatal Resuscitation

Das,

Adams,

Stoicoiu

et al. 2023

Am J Perinatol

View full text Add to dashboard Cite

Objective: The accuracy, timeliness, and reliability of the current methods of Heart rate (HR) determination in neonatal resuscitation are debatable, each having its own limitations. We aim to compare three methods of HR assessment: a) Traditional stethoscope, b) Electrocardiogram and traditional stethoscope, and c) digital stethoscope with loudspeaker amplification of heart sounds. Study Design: This was a simulated crossover experiment using a high-fidelity manikin. Each team with a physician, a nurse and a respiratory therapist performed the resuscitations using the three methods (3 different scenarios) in different order. The person controlling the HR via manikin controller was blinded but the single recorder and the providers were not. Results: Eighteen resuscitations were completed (6 teams of 3 methods each). The time to first HR recording (p<0.001), total number of HR recorded (p<0.001) and time to recognize dips in HR was significantly improved in the digital stethoscope group (p=0.009). Conclusion: Use of digital stethoscope with amplification improved documentation of HR and earlier recognition of HR changes.

show abstract

“…Studies examining Doppler-US for HR assessment suggest it is feasible, reliable, accurate, and fast in obtaining HR (14)(15)(16)(17), however no previous study has evaluated Doppler-US in asphyxiated infants requiring resuscitation. Although, we observed similar HR with Doppler-US, ECG, or CBF, there was a greater agreement range observed for HR measurements.…”

Section: Discussionmentioning

confidence: 99%

“…It is routinely used to assess fetal HR, among other fetal cardiac function parameters, throughout pregnancy and in the delivery room (13,14). Furthermore, Doppler-US has previously been described to assess HR in the Neonatal Intensive Care Unit and the delivery room (14)(15)(16)(17). However, the current evidence for its use for HR assessment during neonatal resuscitation remains scarce.…”

Section: Introductionmentioning

confidence: 99%

Doppler Ultrasound for Heart Rate Assessment in a Porcine Model of Neonatal Asphyxia

et al. 2020

View full text Add to dashboard Cite

Objectives: Approximately 10% of newborn infants require resuscitation at birth. Accurate heart rate (HR) assessment guides resuscitation interventions, thereby reducing morbidities and mortality. While existing HR assessment methods have several limitations, the Doppler ultrasound (Doppler-US) might be a promising alternative. We aimed to evaluate accuracy and optimal use of Doppler-US for HR assessments during neonatal asphyxia in a pre-clinical model. Design: HR assessments were performed in 16 term newborn piglets that were anesthetized, intubated, and instrumented. Study I evaluated optimal transducer position, Study II compared aortic (AV) and pulmonary (PV) examination modes, and Study III examined accuracy during asphyxia, for HR assessment.Setting: Experimental setting.Subjects: Asphyxia-induced piglets.Interventions: Study I: Doppler-US (USCOM ® 1A) HR was assessed on upper (A), middle (B), and lower (C) third of the sternum; study II: Doppler-US HR was assessed using AV and PV examination modes; study III: HR was assessed during asphyxia. Comparisons were made between Doppler-US and the clinical gold standard for HR assessments, electrocardiography (ECG).Measurements and Main Results: Study I: Mean (SD) Doppler-US HR at position A, B, and C showed no difference when compared to ECG HR. Study II: The mean (SD) Doppler-US HR using AV and PV modes also showed no difference when compared to ECG HR. Study III: Bland-Altman analysis revealed a mean difference (95% limits of agreement) between Doppler-US and ECG HR of 1.5 (−16 to 19) bpm. Additionally, motion artifacts produced false peaks and peak size was seen to decrease as bradycardia progressed.Conclusions: HR assessment using Doppler-US during asphyxia is accurate but has limitations and must be further evaluated prior to clinical use. Doppler-US can be positioned along the sternum and use either AV or PV mode for accurate assessments in a piglet model of neonatal asphyxia.

show abstract

A comparative evaluation of portable Doppler ultrasound versus electrocardiogram in heart-rate accuracy and acquisition time immediately after delivery: a multicenter observational study

Cited by 7 publications

References 7 publications

The Use of Foetal Doppler Ultrasound to Determine the Neonatal Heart Rate Immediately after Birth: A Systematic Review

The Use of Foetal Doppler Ultrasound to Determine the Neonatal Heart Rate Immediately after Birth: A Systematic Review

Amplification of Heart Sounds Using Digital Stethoscope in Simulation-Based Neonatal Resuscitation

Doppler Ultrasound for Heart Rate Assessment in a Porcine Model of Neonatal Asphyxia

Contact Info

Product

Resources

About