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Heart rate variability infant

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https://www.readbyqxmd.com/read/28428900/asymptomatic-severe-vagal-and-sympathetic-cardiac-denervation-in-holmes-adie-s-syndrome
#1
B Estañol, R C Callejas-Rojas, S Cortés, R Martínez-Memije, O Infante-Vázquez, G Delgado-García
A 40-year-old woman was found to have bilateral Adie's pupils and generalized muscle stretch areflexia. She did not have orthostatic hypotension but, in an ECG strip in the office, she appeared to have an almost fixed heart rate. We thus studied the heart rate variability (HRV) and the systolic blood pressure variability (SBPV) in supine and standing position and also during rhythmic breathing. We found a decreased HRV in the time domain with very low standard deviation in supine and standing position and during rhythmic breathing...
2017: Case Reports in Neurological Medicine
https://www.readbyqxmd.com/read/28419639/differences-in-intraoperative-hemodynamics-between-spinal-and-general-anesthesia-in-infants-undergoing-pyloromyotomy
#2
Caleb Ing, Lena S Sun, Alexander F Friend, Minjae Kim, Mitchell F Berman, William Paganelli, Guohua Li, Robert K Williams
BACKGROUND: Hypotension and bradycardia are known side effects of spinal anesthesia in pregnant women undergoing cesarean section and adults undergoing other surgical procedures. Whether children experience similar hemodynamic changes is unclear. AIMS: The purpose of this study is to evaluate hemodynamic effects of spinal anesthesia compared to general anesthesia in a cohort of healthy infants. METHODS: The University of Vermont Medical Center almost exclusively used spinal anesthesia for infant pyloromyotomy surgery between 2008 and 2013, while Columbia University Medical Center relied on general anesthesia...
April 17, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28412852/transitional-hemodynamics-in-infants-of-diabetic-mothers-by-targeted-neonatal-echocardiography-electrocardiography-and-peripheral-flow-study
#3
Ingrid Anne Mandy Schierz, Giuseppa Pinello, Ettore Piro, Mario Giuffrè, Simona La Placa, Giovanni Corsello
OBJECTIVE: Metabolic alterations of intrauterine environment in diabetes mellitus (DM) lead to fetal cardiac dysfunctions that can persist after birth. The aim of the study was to assess the cardiovascular adaptation in infants born to diabetic mothers (IDM) with different degrees of glycometabolic control, in relation to revised guidelines for diagnosis of DM and quality improvements in neonatal care. MATERIALS AND METHODS: An observational case-control study was conducted on IDM with gestational, type 1, and type 2 DM...
April 16, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28410786/the-use-of-ecmo-for-gastroschisis-and-omphalocele-two-decades-of-experience
#4
Joanne E Baerg, Arul Thirumoorthi, Andrew O Hopper, Edward P Tagge
PURPOSE: The aim was to review the respiratory failure causes and outcomes of infants with omphalocele or gastroschisis receiving ECMO and reported to the Extracorporeal Life Support Organization (ELSO). METHODS: Gastroschisis and omphalocele infants supported with ECMO and reported to the ELSO Registry between 1992 and 2015 were retrospectively reviewed. Clinical variables, diagnosis of respiratory failure (pulmonary hypertension (PHN), congenital heart defects (CHD), congenital diaphragmatic hernia (CDH), and sepsis), and outcomes were recorded...
March 16, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28388597/fetal-growth-restricted-preterm-infants-display-compromised-autonomic-cardiovascular-control-on-the-first-postnatal-day-but-not-during-infancy
#5
Emily Cohen, Flora Y Wong, Euan M Wallace, Joanne C Mockler, Alexsandria Odoi, Samantha Hollis, Rosemary S C Horne, Stephanie R Yiallourou
BACKGROUND: Fetal growth restriction (FGR) is associated with increased perinatal mortality and long-term cardiovascular and neurodevelopmental sequelae. We hypothesized that FGR impacts on the development of autonomic heart rate and blood pressure control, contributing to unfavorable short- and long-term outcomes following FGR. METHODS: We studied 25 preterm FGR and 22 preterm and 19 term appropriate-for-gestational-age (AGA) infants. Preterm neonates were studied on postnatal Day 1 and all infants were studied at 1 and 6 months post-term age...
April 7, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28383534/the-effect-of-therapeutic-hypothermia-on-heart-rate-variability
#6
Z A Vesoulis, R Rao, S B Trivedi, A M Mathur
OBJECTIVE: Heart rate variability (HRV) reflects integrity of the autonomic nervous system. However, no study has investigated the impact of therapeutic hypothermia (TH) on HRV measures in infants with hypoxic-ischemic encephalopathy (HIE). In this study, we evaluate the influence of temperature on measures of HRV for a group of infants with favorable outcomes, as compared with a control group of infants with unfavorable outcomes. STUDY DESIGN: Term-born infants with moderate-severe HIE underwent standard TH treatment and prospective electroencephalography (EEG) and electrocardiogram (ECG) recording...
April 6, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28376079/pattern-of-brain-injury-and-depressed-heart-rate-variability-in-newborns-with-hypoxic-ischemic-encephalopathy
#7
Marina Metzler, Rathinaswamy Govindan, Tareq Al-Shargabi, Gilbert Vezina, Nickie Andescavage, Yunfei Wang, Adre du Plessis, An N Massaro
BACKGROUND: Decreased heart rate variability (HRV) is a measure of autonomic dysfunction and brain injury in newborns with hypoxic ischemic encephalopathy (HIE). This study aimed to characterize the relationship between HRV and brain injury pattern by MRI in newborns with HIE undergoing therapeutic hypothermia. METHODS: HRV metrics were quantified in the time domain (αS, αL, and root mean square at short [RMSS] and long [RMSL] time scales) and frequency domain (relative low-[LF] and high-frequency [HF] power) during the time period 24-27 h of life...
April 4, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28331972/safe-sleeping-positions-practice-and-policy-for-babies-with-cleft-palate
#8
Karen Davies, Iain A Bruce, Patricia Bannister, Peter Callery
Guidance recommends 'back to sleep' positioning for infants from birth in order to reduce the risk of sudden infant death. Exceptions have been made for babies with severe respiratory difficulties where lateral positioning may be recommended, although uncertainty exists for other conditions affecting the upper airway structures, such as cleft palate. This paper presents research of (i) current advice on sleep positioning provided to parents of infants with cleft palate in the UK; and (ii) decision making by clinical nurse specialists when advising parents of infants with cleft palate...
March 22, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28323349/maternal-depression-during-pregnancy-is-associated-with-increased-birth-weight-in-term-infants
#9
Lisa Ecklund-Flores, Michael M Myers, Catherine Monk, Albany Perez, Hein J Odendaal, William P Fifer
Previous research of maternal depression during pregnancy suggests an association with low birth weight in newborns. Review of these studies reveals predominant comorbidity with premature birth. This current study examines antenatal depression and birth weight in term, medically low-risk pregnancies. Maternal physiological and demographic measures were collected as well. In total, 227 pregnant women were recruited to participate in four experimental protocols at Columbia University Medical Center. Results indicate that depressed pregnant women who carry to term had significantly higher heart rates, lower heart rate variability, and gave birth to heavier babies than those of pregnant women who were not depressed...
April 2017: Developmental Psychobiology
https://www.readbyqxmd.com/read/28321913/heart-rate-variability-can-be-used-to-evaluate-wellbeing-in-preterm-infants
#10
K Kaar, J Brandner, B Minnich, J Hilberath, C Weisser, M Wald
Preterm infants are exposed to various potentially stressful procedures during intensive care, which have been shown to compromise development. We explored the potential stress caused by echocardiograph and the correlation between the duration of the investigation and the amplitude of the alteration. The usefulness of the Newborn Infant Parasympathetic Evaluation (NIPE) monitor (Mdoloris Medical Systems, Loos, France) for assessing acute distress during daily routines, based on heart rate variability, was also investigated...
March 21, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28282664/the-impact-of-surgical-patent-ductus-arteriosus-closure-on-autonomic-function-in-premature-infants
#11
Nickie N Andescavage, Marina Metzler, Vedavalli Govindan, Tareq Al-Shargabi, Dilip S Nath, Anita Krishnan, An Massaro, Yunfei Wang, Adre J duPlessis, R B Govindan
Background Patent ductus arteriosus (PDA) is a common complication of prematurity and a risk factor for poor outcome. Infants undergoing surgical PDA ligation are at highest risk for neurodevelopmental injury. Autonomic dysfunction has been described in premature infants with PDA. Aim To interrogate the autonomic nervous system by analysis of advanced heart rate variability (HRV) metrics before and after surgical closure of the PDA. Study Design Prospective, observational study. Subjects Twenty-seven infants born before 28 weeks' gestation were included in this study...
March 10, 2017: American Journal of Perinatology
https://www.readbyqxmd.com/read/28268480/lomb-algorithm-versus-fast-fourier-transform-in-heart-rate-variability-analyses-of-pain-in-premature-infants
#12
Anas Delane, Jorge Bohorquez, Subhanshu Gupta, Martin Schiavenato
Heart rate variability analysis is a promising method for measuring pain in premature infants. The Lomb algorithm was adapted and compared with fast Fourier transform (FFT) for the purposes of PSD estimation. Both FFT and the Lomb algorithm had similar low frequency (LF) estimation error rates. However, the Lomb algorithm had a significant smaller error rate than FFT when estimating high frequency (HF). In addition, the ECG signals of two premature infants in the newborn intensive care unit were analyzed while undergoing a routine heel stick, a common painful procedure...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268474/improving-heart-rate-estimation-in-preterm-infants-with-bivariate-point-process-analysis-of-heart-rate-and-respiration
#13
Alan H Gee, Riccardo Barbieri, David Paydarfar, Premananda Indic
Accurate estimation of heart rate dynamics in preterm infants is important for predicting recurrent episodes of severe bradycardia. We hypothesize that estimation of heart rate can be improved by including respiration as a state variable, based on mechanisms that underlie cardio-respiratory coherence. For ten preterm infants, we demonstrate that including respiration as a covariate improves estimation accuracy by an average of 11% across bradycardia severity, and reduces the maximum error by 8%. We also find that cardio-respiratory coherence increases in low frequency content just prior to severe bradycardia...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226653/lomb-algorithm-versus-fast-fourier-transform-in-heart-rate-variability-analyses-of-pain-in-premature-infants
#14
Anas Delane, Jorge Bohorquez, Subhanshu Gupta, Martin Schiavenato, Anas Delane, Jorge Bohorquez, Subhanshu Gupta, Martin Schiavenato, Martin Schiavenato, Jorge Bohorquez, Subhanshu Gupta, Anas Delane
Heart rate variability analysis is a promising method for measuring pain in premature infants. The Lomb algorithm was adapted and compared with fast Fourier transform (FFT) for the purposes of PSD estimation. Both FFT and the Lomb algorithm had similar low frequency (LF) estimation error rates. However, the Lomb algorithm had a significant smaller error rate than FFT when estimating high frequency (HF). In addition, the ECG signals of two premature infants in the newborn intensive care unit were analyzed while undergoing a routine heel stick, a common painful procedure...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226647/improving-heart-rate-estimation-in-preterm-infants-with-bivariate-point-process-analysis-of-heart-rate-and-respiration
#15
Alan H Gee, Riccardo Barbieri, David Paydarfar, Premananda Indic, Alan H Gee, Riccardo Barbieri, David Paydarfar, Premananda Indic, David Paydarfar, Riccardo Barbieri, Alan H Gee, Premananda Indic
Accurate estimation of heart rate dynamics in preterm infants is important for predicting recurrent episodes of severe bradycardia. We hypothesize that estimation of heart rate can be improved by including respiration as a state variable, based on mechanisms that underlie cardio-respiratory coherence. For ten preterm infants, we demonstrate that including respiration as a covariate improves estimation accuracy by an average of 11% across bradycardia severity, and reduces the maximum error by 8%. We also find that cardio-respiratory coherence increases in low frequency content just prior to severe bradycardia...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28220475/dyadic-flexibility-mediates-the-relation-between-parent-conflict-and-infants-vagal-reactivity-during-the-face-to-face-still-face
#16
Alex Busuito, Ginger A Moore
Parent conflict is related to attenuated infant vagal reactivity, suggesting less effective regulation. Because infants' self-regulation develops in the context of coregulation, the current study examined a novel measure, flexibility, purported to reflect dyadic reorganization in response to contextual demands. Flexibility was expected to mediate the relation between greater conflict and lesser vagal reactivity during the reunion episode of the Face-to-Face Still-Face (FFSF). Six-month-old infants' and their mothers' (N = 53) affective behaviors were observed during the FFSF and heart rate data were collected for infants...
February 21, 2017: Developmental Psychobiology
https://www.readbyqxmd.com/read/28211121/relationship-between-qt-and-jt-peak-interval-variability-in-prepubertal-children
#17
Yuka Takeuchi, Yumi Omeki, Kayo Horio, Miki Nishio, Rina Nagata, Shota Oikawa, Yuri Mizutani, Arisa Nagatani, Yuri Funamoto, Hidetoshi Uchida, Masayuki Fujino, Yoshihiko Eryu, Hiroko Boda, Masafumi Miyata, Tadayoshi Hata
BACKGROUND: The QT variability index (QTVI) is a noninvasive index of repolarization lability that has been applied to subjects with cardiovascular disease. QTVI provides a ratio of normalized QT variability to normalized heart rate variability, and therefore includes an assessment of autonomic nervous activity. However, measurement of QT time is particularly difficult in children, who exhibit physiologically high heart rates compared with adults. In this study, we developed a set of standard values of J-point to Tpeak interval (JTp) for infants by age, and assessed the correlation of QTVI with the JTp variability index (JTpVI)...
February 17, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28205208/skin-to-skin-care-for-procedural-pain-in-neonates
#18
REVIEW
Celeste Johnston, Marsha Campbell-Yeo, Timothy Disher, Britney Benoit, Ananda Fernandes, David Streiner, Darlene Inglis, Rebekah Zee
BACKGROUND: Skin-to-skin care (SSC), often referred to as 'kangaroo care' (KC) due to its similarity with marsupial behaviour of ventral maternal-infant contact, is one non-pharmacological intervention for pain control in infants. OBJECTIVES: The primary objectives were to determine the effect of SSC alone on pain from medical or nursing procedures in neonates compared to no intervention, sucrose or other analgesics, or additions to simple SSC such as rocking; and to determine the effects of the amount of SSC (duration in minutes), method of administration (e...
February 16, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28198757/effect-of-temperature-on-heart-rate-variability-in-neonatal-icu-patients-with-hypoxic-ischemic-encephalopathy
#19
An N Massaro, Heather E Campbell, Marina Metzler, Tareq Al-Shargabi, Yunfei Wang, Adre du Plessis, Rathinaswamy B Govindan
OBJECTIVE: To determine whether measures of heart rate variability are related to changes in temperature during rewarming after therapeutic hypothermia for hypoxic-ischemic encephalopathy. DESIGN: Prospective observational study. SETTING: Level 4 neonatal ICU in a free-standing academic children's hospital. PATIENTS: Forty-four infants with moderate to severe hypoxic-ischemic encephalopathy treated with therapeutic hypothermia...
April 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28196284/early-onset-neonatal-sepsis-is-associated-with-a-high-heart-rate-during-automatically-selected-stationary-periods
#20
Nga Nguyen, Laurent Vandenbroucke, Alfredo Hernández, Tu Pham, Alain Beuchée, Patrick Pladys
AIM: This study examined the heart rate variability characteristics associated with early-onset neonatal sepsis in a prospective, observational controlled study. METHODS: Eligible patients were full-term neonates hospitalised with clinical signs that suggested early-onset sepsis and a C-reactive protein of >10 mg/L. Sepsis was considered proven in cases of symptomatic septicaemia, meningitis, pneumonia or enterocolitis. Heart rate variability parameters (n = 16) were assessed from five-, 15- and 30-minute stationary sequences automatically selected from electrocardiographic recordings performed at admission and compared with a control group using the U-test with post hoc Benjamini-Yekutieli correction...
February 14, 2017: Acta Paediatrica
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