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Neonatal Near infrared spectroscopy

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https://www.readbyqxmd.com/read/29649824/end-organ-saturation-differences-in-early-neonatal-transition-for-left-versus-right-sided-congenital-heart-disease
#1
Gabriel Altit, Shazia Bhombal, Theresa A Tacy, Valerie Y Chock
BACKGROUND: For neonates with congenital heart disease (CHD), left-sided (LL) and right-sided (RL) single ventricular physiologies (LL, hypoplastic left heart syndrome; RL, tricuspid atresia or pulmonary atresia with intact ventricular septum) may demonstrate distinct changes in tissue saturation in the first 72 h of life. Near-infrared spectroscopy (NIRS) can measure regional cerebral saturation (Csat) and renal saturation (Rsat) to clarify differences between LL and RL over time. OBJECTIVES: Our primary objective was to measure changes in Csat and Rsat in the first 72 h of life using NIRS between CHD infants with LL compared to RL...
April 12, 2018: Neonatology
https://www.readbyqxmd.com/read/29604486/effects-of-caffeine-on-the-preterm-brain-an-observational-study
#2
Laura M L Dix, Frank van Bel, Willem Baerts, Petra M A Lemmers
BACKGROUND AND AIM: Caffeine improves neurodevelopmental outcome of preterm infants. This study analyses the effects of caffeine on the neonatal brain. We hypothesized that caffeine has a neuroprotective effect through an increase in oxygen metabolism; reflected by increased cerebral oxygen extraction, electrical function, and perfusion. METHODS: Preterm infants <32 weeks gestation (GA) receiving their primary dose caffeine-base (10 mg/kg) were included. Ten minutes of stable monitoring were selected before, during, and every hour up to 6 h after caffeine...
March 28, 2018: Early Human Development
https://www.readbyqxmd.com/read/29539643/benchmarking-of-four-near-infrared-spectroscopy-devices-for-long-time-use-in-neonates
#3
Anna Schneider, Edda Hofstätter, Johannes Brandner, Angelika Moder, Silke Häusler, Martin Wald
BACKGROUND: Using near-infrared spectroscopy (NIRS) mixed tissue saturation can be calculated by measuring the oxygen saturation of oxygenated and deoxygenated erythrocytes in the tissue. Quality of the calculated value is not only dependent on the exposure of the measured values in the calculation, but also on external factors such as artifacts. Main object of this study was to determine whether and how the measurement quality of different devices varies in their long-term use in premature infants...
March 14, 2018: Klinische Pädiatrie
https://www.readbyqxmd.com/read/29538356/abdominal-near-infrared-spectroscopy-in-a-piglet-model-of-gastrointestinal-hypoxia-produced-by-graded-hypoxia-or-superior-mesenteric-artery-ligation
#4
May W Chen, Michael Reyes, Ewa Kulikowicz, Laura Martin, David J Hackam, Raymond C Koehler, Jennifer K Lee
BACKGROUND: Abdominal near-infrared spectroscopy (aNIRS) may detect gastrointestinal hypoxia before necrotizing enterocolitis develops. We sought to validate aNIRS during splanchnic hypoxia and hypoperfusion in neonatal piglets. METHODS: Anesthetized piglets underwent systemic hypoxia or 3-h superior mesenteric artery (SMA) ligation with aNIRS monitoring. RESULTS: During progressive hypoxia, gastrointestinal tissue oxyhemoglobin saturation measured by aNIRS decreased linearly with oxyhemoglobin saturation measured directly in the portal vein...
March 14, 2018: Pediatric Research
https://www.readbyqxmd.com/read/29519539/autonomic-dysfunction-in-neonates-with-hypoxic-ischemic-encephalopathy-undergoing-therapeutic-hypothermia-impairs-physiological-responses-to-routine-care-events
#5
Heather Campbell, Rathinaswamy B Govindan, Srinivas Kota, Tareq Al-Shargabi, Marina Metzler, Nickie Andescavage, Taeun Chang, Gilbert Vezina, Adre du Plessis, An N Massaro
OBJECTIVE: To evaluate whether infants with hypoxic-ischemic encephalopathy and evidence of autonomic dysfunction have aberrant physiological responses to care events that could contribute to evolving brain injury. STUDY DESIGN: Continuous tracings of heart rate (HR), blood pressure (BP), cerebral near infrared spectroscopy, and video electroencephalogram data were recorded from newborn infants with hypoxic-ischemic encephalopathy who were treated with hypothermia...
March 6, 2018: Journal of Pediatrics
https://www.readbyqxmd.com/read/29472709/splanchnic-nirs-monitoring-in-neonatal-care-rationale-current-applications-and-future-perspectives
#6
REVIEW
Silvia Martini, Luigi Corvaglia
Near infrared spectroscopy (NIRS) provides a non-invasive, continuous monitoring of regional tissue oxygenation. NIRS assessment of neonatal splanchnic oxygenation (SrSO2 ) has gained increasing interest over the last decade, as local hypoxia and ischemia underlie the most feared gut complications in neonates. Current literature provides encouraging evidence in support of SrSO2 reliability in detecting mesenteric hemodynamic changes related to various physiological and pathological conditions in-term and preterm infants...
February 22, 2018: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/29450194/avoiding-arterial-hypotension-in-preterm-neonates-ahip-a-single-center-randomised-controlled-study-investigating-simultaneous-near-infrared-spectroscopy-measurements-of-cerebral-and-peripheral-regional-tissue-oxygenation-and-dedicated-interventions
#7
Gerhard Pichler, Nina Höller, Nariae Baik-Schneditz, Bernhard Schwaberger, Lukas Mileder, Jasmin Stadler, Alexander Avian, Jasmin Pansy, Berndt Urlesberger
Introduction: Up to 50% of preterm infants admitted to intensive care units require cardiocirculatory support. The aim of the present study was to assess whether simultaneous monitoring of cerebral tissue oxygenation index (cTOI) and peripheral tissue oxygenation index (pTOI) using near-infrared spectroscopy (NIRS) in combination with dedicated intervention guidelines may help avoiding arterial hypotension and catecholamine administration in preterm neonates. Study design: Preterm neonates <37 weeks of gestation were included in a single center randomized controlled study...
2018: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/29430749/patterns-of-use-of-near-infrared-spectroscopy-in-neonatal-intensive-care-units-international-usage-survey
#8
Carol Lu Hunter, Ju Lee Oei, Keiji Suzuki, Kei Lui, Timothy Schindler
AIM: To assess uptake and applications of near-infrared spectroscopy (NIRS) by neonatal intensive care units (NICUs). METHODS: A pre-piloted online questionnaire was distributed in May 2015 to 12 perinatal societies in Asia, Europe, Australasia, North America and Middle East for dissemination to NICUs. Questions surveyed demographics, NIRS research/clinical applications, usage frequency, training approaches and target infant populations. RESULTS: In total, 255 responses from 235 NICUs were obtained...
February 11, 2018: Acta Paediatrica
https://www.readbyqxmd.com/read/29410542/utility-of-prenatal-doppler-ultrasound-to-predict-neonatal-impaired-cerebral-autoregulation
#9
Sruthi R Polavarapu, Garrett D Fitzgerald, Stephen Contag, Suma B Hoffman
OBJECTIVE: Determine if abnormal prenatal Doppler ultrasound indices are predictive of postnatal impaired cerebral autoregulation. STUDY DESIGN: Prospective cohort study of 46 subjects, 240 -296 weeks' gestation. Utilizing near-infrared spectroscopy and receiver-operating characteristic analysis, impaired cerebral autoregulation was defined as >16.5% time spent in a dysregulated state within 96 h of life. Normal and abnormal Doppler indices were compared for perinatal outcomes...
February 6, 2018: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/29369068/applications-of-near-infrared-spectroscopy-in-the-neonate
#10
Aisling A Garvey, Eugene M Dempsey
PURPOSE OF REVIEW: There has been a significant increase in the utilization of NIRS in neonatal care over the last few years, with some centers now routinely utilizing this monitoring technique for direct intervention at the bedside. In this review, we provide a summary of the most up-to-date evidence on near infrared spectroscopy utilization, with particular emphasis on measurement of cerebral oxygenation in preterm infants. RECENT FINDINGS: There have been significant advances in the technology, leading to an increase in the number of available devices and in the use of this monitoring tool to reduce cerebral injury in preterm infants...
April 2018: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/29366495/cerebral-oximetry-monitoring-in-the-management-of-severe-hypoxaemia-associated-with-transposition-of-the-great-arteries-with-balloon-atrial-septostomy
#11
J C Pérez Moreno, D C Nájera Losada, P Sanabria Carretero, Á Paredes Lacave, F Benito Bartolomé
Transposition of the great arteries (D-TGA) is one of the most common congenital heart diseases requiring neonatal surgical intervention. In the desperately ill neonate with TGA and the resultant hypoxaemia, acidemia, and congestive heart failure, improvement is often obtained with balloon atrial septostomy (BAS). Current methods employed to evaluate oxygen delivery and tissue consumption are frequently nonspecific. Near infrared spectroscopy (NIRS) allows a continuous non-invasive measurement of tissue oxygenation which reflects perfusion status in real time...
January 21, 2018: Revista Española de Anestesiología y Reanimación
https://www.readbyqxmd.com/read/29359089/comparison-of-tissue-oximeters-on-a-liquid-phantom-with-adjustable-optical-properties-an-extension
#12
S Kleiser, D Ostojic, B Andresen, N Nasseri, H Isler, F Scholkmann, T Karen, G Greisen, M Wolf
Cerebral near-infrared spectroscopy (NIRS) oximetry may help clinicians to improve patient treatment. However, the application of NIRS oximeters is increasingly causing confusion to the users due to the inconsistency of tissue oxygen haemoglobin saturation (StO2 ) readings provided by different oximeters. To establish a comparability of oximeters, in our study we performed simultaneous measurements on the liquid phantom mimicking properties of neonatal heads and compared the tested device to a reference NIRS oximeter (OxiplexTS)...
January 1, 2018: Biomedical Optics Express
https://www.readbyqxmd.com/read/29328980/consequence-of-intraventricular-hemorrhage-on-neurovascular-coupling-evoked-by-speech-syllables-in-preterm-neonates
#13
Mahdi Mahmoudzadeh, Ghislaine Dehaene-Lambertz, Guy Kongolo, Marc Fournier, Sabrina Goudjil, Fabrice Wallois
Intraventricular Hemorrhage (IVH) is the leading cause of neurological and cognitive impairment in preterm neonates with an incidence that increases with increasing prematurity. In the present study, we tested how preterm neonates with IVH react to external stimulation (i.e. speech syllables). We compared their neural responses measured by electroencephalography (EEG), and hemodynamic responses measured by functional near-infrared spectroscopy (fNIRS), with those of healthy preterms. A neural response to syllables was observed in these infants, but did not induce a vascular response in contrast with healthy neonates...
January 5, 2018: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/29317764/cerebral-oxygenation-during-umbilical-arterial-blood-sampling-in-very-low-birth-weight-neonates
#14
Jonathan P Mintzer, Catherine Messina
OBJECTIVE: Umbilical arterial blood sampling (UABS) has been associated with cerebral oxygen saturation (CrSO2 ) decrements in very low birth weight (VLBW) neonates. We sought to determine patient- and UABS procedure-related factors contributing to this effect. STUDY DESIGN: In this prospective cohort study, cerebral near-infrared spectroscopy was performed during UABS procedures in VLBW neonates. Analyses were conducted to determine subject- and procedure-related factors correlating with CrSO2 decrements...
January 9, 2018: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/29317758/speech-prosodies-of-different-emotional-categories-activate-different-brain-regions-in-adult-cortex-an-fnirs-study
#15
Dandan Zhang, Yu Zhou, Jiajin Yuan
Emotional expressions of others embedded in speech prosodies are important for social interactions. This study used functional near-infrared spectroscopy to investigate how speech prosodies of different emotional categories are processed in the cortex. The results demonstrated several cerebral areas critical for emotional prosody processing. We confirmed that the superior temporal cortex, especially the right middle and posterior parts of superior temporal gyrus (BA 22/42), primarily works to discriminate between emotional and neutral prosodies...
January 9, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29287010/electrogastrography-near-infrared-spectroscopy-and-acoustics-to-measure-gastrointestinal-development-in-preterm-babies
#16
Eric B Ortigoza, Jackson Cagle, Jui-Hong Chien, Sungho Oh, L Steven Brown, Josef Neu
OBJECTIVES: To obtain objective measures indicative of gastrointestinal maturity using three non-invasive technologies. METHODS: Electrogastrography (EGG), abdominal near-infrared spectroscopy (NIRS), and bowel sound/acoustics (AC) monitoring were used simultaneously to obtain physiologic measures of the gastrointestinal system of 18 preterm and 5 term neonates who were tolerating enteral feedings.Measures of EGG slow wave voltage (EGG dominant power) and AC signal amplitude (AC dominant power) were obtained after spectral density analysis...
December 28, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/29161235/influence-of-ductus-arteriosus-on-peripheral-muscle-oxygenation-and-perfusion-in-neonates
#17
Lukas Peter Mileder, Tessa Mueller, Nariae Baik-Schneditz, Jasmin Pansy, Bernhard Schwaberger, Corinna Binder-Heschl, Berndt Urlesberger, Gerhard Pichler
In neonates, a patent ductus arteriosus (DA) may be associated with severe complications. We used near-infrared spectroscopy (NIRS) with venous occlusion to investigate the influence of an open DA on peripheral muscle oxygenation/perfusion in preterm neonates. Approach: We analyzed secondary outcome parameters collected as part of prospective observational studies. NIRS measurements were performed between the first and third day of life. Arterial oxygen saturation (SaO2) and heart rate (HR) were monitored by pulse oximetry on the ipsilateral foot...
November 21, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/29150648/shedding-light-on-the-neonatal-brain-probing-cerebral-hemodynamics-by-diffuse-optical-spectroscopic-methods
#18
Parisa Farzam, Erin M Buckley, Pei-Yi Lin, Katherine Hagan, P Ellen Grant, Terrie Eleanor Inder, Stefan A Carp, Maria Angela Franceschini
Investigating the cerebral physiology of healthy term newborns' brains is important for better understanding perinatal brain injuries, of which the most common etiologies are hypoxia and ischemia. Hence, cerebral blood flow and cerebral oxygenation are important biomarkers of brain health. In this study, we employed a hybrid diffuse optical system consisting of diffuse correlation spectroscopy (DCS) and frequency-domain near infrared spectroscopy (FDNIRS) to measure hemoglobin concentration, oxygen saturation, and indices of cerebral blood flow and metabolism...
November 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29137806/a-novel-multimodal-computational-system-using-near-infrared-spectroscopy-predicts-the-need-for-ecmo-initiation-in-neonates-with-congenital-diaphragmatic-hernia
#19
Stephanie M Cruz, Patricio E Lau, Craig G Rusin, Candace C Style, Darrell L Cass, Caraciolo J Fernandes, Timothy C Lee, Christopher J Rhee, Sundeep Keswani, Rodrigo Ruano, Stephen E Welty, Oluyinka O Olutoye
BACKGROUND/PURPOSE: The purpose of this study was to develop a computational algorithm that would predict the need for ECMO in neonates with congenital diaphragmatic hernia (CDH). METHODS: CDH patients from August 2010 to 2016 were enrolled in a study to continuously measure cerebral tissue oxygen saturation (cStO2) of left and right cerebral hemispheres. NIRS devices utilized were FORE-SIGHT, CASMED and INVOS 5100, Somanetics. Using MATLAB©, a data randomization function was used to deidentify and blindly group patient's data files as follows: 12 for the computational model development phase (6 ECMO and 6 non-ECMO) and the remaining patients for the validation phase...
October 12, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/29131125/splanchnic-cerebral-oxygenation-ratio-decreases-during-enteral-feedings-in-anemic-preterm-infants-observations-under-near-infrared-spectroscopy
#20
Katherine Braski, Kimberlee Weaver-Lewis, Manndi Loertscher, Qian Ding, Xiaoming Sheng, Mariana Baserga
BACKGROUND: Anemia is common in premature infants. Due to risks with red blood cell transfusions, many anemic infants are not transfused. The implications of this pathophysiologic status, especially at times of increased metabolic demand (enteral feedings), is not well understood. Near-infrared spectroscopy (NIRS) allows for the noninvasive determination of regional oxygen saturations (rSO2) in tissues such as the brain and mesentery, giving insight into their oxygen sufficiency. OBJECTIVE: We tested the hypothesis that during enteral feedings very low birth weight (VLBW) infants with a hematocrit ≤28% will experience a decrease in splanchnic rSO2 and splanchnic-cerebral oxygenation ratio (SCOR)...
2018: Neonatology
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