Heart rate monitoring in Neonatal Intensive Care using Markov models

Author(s):  
Aleksandar Jeremic ◽  
Kenneth Tan
Sensors ◽  
2021 ◽  
Vol 21 (3) ◽  
pp. 999
Author(s):  
Henry Dore ◽  
Rodrigo Aviles-Espinosa ◽  
Zhenhua Luo ◽  
Oana Anton ◽  
Heike Rabe ◽  
...  

Heart rate monitoring is the predominant quantitative health indicator of a newborn in the delivery room. A rapid and accurate heart rate measurement is vital during the first minutes after birth. Clinical recommendations suggest that electrocardiogram (ECG) monitoring should be widely adopted in the neonatal intensive care unit to reduce infant mortality and improve long term health outcomes in births that require intervention. Novel non-contact electrocardiogram sensors can reduce the time from birth to heart rate reading as well as providing unobtrusive and continuous monitoring during intervention. In this work we report the design and development of a solution to provide high resolution, real time electrocardiogram data to the clinicians within the delivery room using non-contact electric potential sensors embedded in a neonatal intensive care unit mattress. A real-time high-resolution electrocardiogram acquisition solution based on a low power embedded system was developed and textile embedded electrodes were fabricated and characterised. Proof of concept tests were carried out on simulated and human cardiac signals, producing electrocardiograms suitable for the calculation of heart rate having an accuracy within ±1 beat per minute using a test ECG signal, ECG recordings from a human volunteer with a correlation coefficient of ~ 87% proved accurate beat to beat morphology reproduction of the waveform without morphological alterations and a time from application to heart rate display below 6 s. This provides evidence that flexible non-contact textile-based electrodes can be embedded in wearable devices for assisting births through heart rate monitoring and serves as a proof of concept for a complete neonate electrocardiogram monitoring system.


2013 ◽  
Vol 89 (12) ◽  
pp. 943-948 ◽  
Author(s):  
Lonneke A.M. Aarts ◽  
Vincent Jeanne ◽  
John P. Cleary ◽  
C. Lieber ◽  
J. Stuart Nelson ◽  
...  

PEDIATRICS ◽  
1995 ◽  
Vol 95 (2) ◽  
pp. 231-237
Author(s):  
Steven F. Glotzbach ◽  
Dale M. Edgar ◽  
Ronald L. Ariagno

Objective. The study of biological rhythms and the influence of environmental factors in the timing and synchronization of different rhythmic events have important implications for neonatal health. Preterm infants in the neonatal intensive care unit (NICU) are deprived of the patterned influences of maternal sleep, temperature, heart rate, and hormonal cycles. The impact of the NICU and nursing interventions on the development of the circadian system was studied in 17 stable preterm infants in the Intermediate Intensive Care Nursery at Stanford University for three consecutive days at about 35 weeks postconceptional age. Outcome measurements. Rectal temperature, abdominal skin temperature, heart rate, and activity were simultaneously recorded at 2-minute intervals during each 3-day study by a small microcomputer (Vitalog). Results. Very low amplitude circadian rhythms were found for rectal and skin temperatures (maximum range 36.8 to 37.0°C); population mean values for heart rate (158 bpm) and activity (3.5 counts per 2-min bin) did not differ significantly as a function of time of day. Rectal temperature, averaged in 6-hour bins over the 24-hour day as a function of both postconceptional age and postnatal age, was significantly higher during the first part of the circadian cycle. In all infants, rhythmicity in each variable was dominated by ultradian periodicities that were coincident with feedings and related interventions; moreover, several physiological variables charted during feeding differed significantly from values obtained during periods in which caregiving interventions did not occur. Conclusion. Quantitative data on the preterm infant circadian system may facilitate evaluation of factors that improve therapeutic responses, recovery, and outcome of neonatal intensive care patients.


2021 ◽  
Vol 11 (4) ◽  
Author(s):  
Yndiara Kássia Da Cunha Soares ◽  
Paula Oliveira Santos

Objetivo: analisar na literatura as evidências científicas disponíveis sobre o posicionamento do recém-nascido prematuro (RNPT) em unidade de terapia intensiva neonatal. Método: revisão integrativa da literatura realizada nas bases de dados MEDLINE/PubMed, CINAHL, LILACS E BDENF no mês de fevereiro de 2020 sem delimitação temporal. Resultados: foram incluídos 27 artigos, com predomínio de estudos experimentais. Constatou-se que o posicionamento pode melhorar os parâmetros fisiológicos do RNPT como respiração, frequência cardíaca, fluxo cerebral, nutrição. Além de benefícios nas respostas comportamentais com destaque para diminuição da dor, conforto, postura e sono. Conclusão: o posicionamento adequado pode contribuir para a melhora das respostas fisiológicos e comportamentais de RNPT e deve ser uma prática incorporada pela equipe de saúde.Descritores: Recém-Nascido Prematuro; Posicionamento do paciente; Unidades de Terapia Intensiva Neonatal.POSITIONING OF PREMATURE NEWBORN IN NEONATAL INTENSIVE CARE UNITObjective: to analyze in the literature the scientific evidence available on the position of the premature newborn (PTNB) in a neonatal intensive care unit. Method: integrative literature review carried out in the MEDLINE / PubMed, CINAHL, LILACS AND BDENF databases in February 2020 without time delimitation. Results: 27 articles were included, with a predominance of experimental studies. It was found that positioning can improve the physiological parameters of PTNB such as breathing, heart rate, brain flow, nutrition. In addition to benefits in behavioral responses with emphasis on decreasing pain, comfort, posture and sleep. Conclusion: proper positioning can contribute to improving the physiological and behavioral responses of PTNB and should be a practice incorporated by the health team.Descriptors: Infant, Premature; Patient Positioning; Intensive Care Units, Neonatal. POSICIONAMIENTO DEL RECIÉN NACIDO PREMATURO EN UNIDAD DE CUIDADO INTENSIVO NEONATALObjetivo: analizar en la literatura la evidencia científica disponible sobre la posición del recién nacido prematuro (PTNB) en una unidad de cuidados intensivos neonatales. Método: revisión integral de la literatura realizada en las bases de datos MEDLINE / PubMed, CINAHL, LILACS Y BDENF en febrero de 2020 sin delimitación del tiempo. Resultados: se incluyeron 27 artículos, con predominio de estudios experimentales. Se descubrió que el posicionamiento puede mejorar los parámetros fisiológicos de PTNB, como la respiración, la frecuencia cardíaca, el flujo cerebral y la nutrición. Además de los beneficios en las respuestas conductuales con énfasis en la disminución del dolor, la comodidad, la postura y el sueño. Conclusión: el posicionamiento adecuado puede contribuir a la mejora de las respuestas fisiológicas y conductuales de PTNB y debe ser una práctica incorporada por el equipo de salud.Descriptores: Recien Nacido Prematuro; Posicionamiento del Paciente; Unidades de Cuidado Intensivo Neonatal. 


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