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Neonatal Near infrared spectroscopy

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https://www.readbyqxmd.com/read/28280719/cerebral-tissue-oxygenation-during-immediate-neonatal-transition-and-resuscitation
#1
REVIEW
Gerhard Pichler, Georg M Schmölzer, Berndt Urlesberger
This article provides a review of cerebral tissue oxygenation during immediate transition after birth in human neonates. Recommended routine monitoring, especially if resuscitation is needed, during this period includes arterial oxygen saturation and heart rate measured by pulse oximetry and electrocardiogram. However, there is increasing interest to monitor in addition with near-infrared spectroscopy (NIRS) the oxygenation of the brain. There is a different pattern of increase between cerebral tissue oxygenation and arterial oxygen saturation during the immediate transition, with cerebral tissue oxygenation reaching a plateau faster than arterial oxygen saturation...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28278259/prognostic-value-of-cerebral-tissue-oxygen-saturation-during-neonatal-extracorporeal-membrane-oxygenation
#2
Marie-Philippine Clair, Jérôme Rambaud, Adrien Flahault, Romain Guedj, Julia Guilbert, Isabelle Guellec, Amélie Durandy, Maryne Demoulin, Sandrine Jean, Delphine Mitanchez, François Chalard, Chiara Sileo, Ricardo Carbajal, Sylvain Renolleau, Pierre-Louis Léger
OBJECTIVES: Extracorporeal membrane oxygenation support is indicated in severe and refractory respiratory or circulatory failures. Neurological complications are typically represented by acute ischemic or hemorrhagic lesions, which induce higher morbidity and mortality. The primary goal of this study was to assess the prognostic value of cerebral tissue oxygen saturation (StcO2) on mortality in neonates and young infants treated with ECMO. A secondary objective was to evaluate the association between StcO2 and the occurrence of cerebral lesions...
2017: PloS One
https://www.readbyqxmd.com/read/28276534/non-invasive-assessment-of-cerebral-blood-flow-and-oxygen-metabolism-in-neonates-during-hypothermic-cardiopulmonary-bypass-feasibility-and-clinical-implications
#3
Silvina L Ferradal, Koichi Yuki, Rutvi Vyas, Christopher G Ha, Francesca Yi, Christian Stopp, David Wypij, Henry H Cheng, Jane W Newburger, Aditya K Kaza, Maria A Franceschini, Barry D Kussman, P Ellen Grant
The neonatal brain is extremely vulnerable to injury during periods of hypoxia and/or ischemia. Risk of brain injury is increased during neonatal cardiac surgery, where pre-existing hemodynamic instability and metabolic abnormalities are combined with long periods of low cerebral blood flow and/or circulatory arrest. Our understanding of events associated with cerebral hypoxia-ischemia during cardiopulmonary bypass (CPB) remains limited, largely due to inadequate tools to quantify cerebral oxygen delivery and consumption non-invasively and in real-time...
March 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28196885/hemoglobin-phase-of-oxygenation-and-deoxygenation-in-early-brain-development-measured-using-fnirs
#4
Hama Watanabe, Yoshihiko Shitara, Yoshinori Aoki, Takanobu Inoue, Shinya Tsuchida, Naoto Takahashi, Gentaro Taga
A crucial issue in neonatal medicine is the impact of preterm birth on the developmental trajectory of the brain. Although a growing number of studies have shown alterations in the structure and function of the brain in preterm-born infants, we propose a method to detect subtle differences in neurovascular and metabolic functions in neonates and infants. Functional near-infrared spectroscopy (fNIRS) was used to obtain time-averaged phase differences between spontaneous low-frequency (less than 0.1 Hz) oscillatory changes in oxygenated hemoglobin (oxy-Hb) and those in deoxygenated hemoglobin (deoxy-Hb)...
February 28, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28190559/use-of-renal-near-infrared-spectroscopy-measurements-in-congenital-diaphragmatic-hernia-patients-on-ecmo
#5
Patricio E Lau, Stephanie Cruz, Joseph Garcia-Prats, Milenka Cuevas, Christopher Rhee, Darrell L Cass, Sarah E Horne, Timothy C Lee, Stephen E Welty, Oluyinka O Olutoye
INTRODUCTION: This study tests the hypothesis that renal tissue oxygen saturation as measured by Near Infrared Spectroscopy (NIRS) would correlate with urine output in neonates with congenital diaphragmatic hernia (CDH) on extracorporeal membrane oxygenation (ECMO). METHODS: Between 2012 and 2015, neonates with CDH were enrolled as part of a comprehensive study that provided renal/cerebral/abdominal NIRS monitoring for the duration of ECMO support. Continuous NIRS measurements, mean arterial pressure, and urine output were recorded...
January 27, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28141793/sex-specific-associations-between-cerebrovascular-blood-pressure-autoregulation-and-cardiopulmonary-injury-in-neonatal-encephalopathy-and-therapeutic-hypothermia
#6
Raul Chavez-Valdez, Matthew O'Connor, Jamie Perin, Michael Reyes, Jillian Armstrong, Charlamaine Parkinson, Maureen Gilmore, Jacky Jennings, Frances J Northington, Jennifer K Lee
BACKGROUND: Cardiopulmonary injury is common in neonatal encephalopathy, but the link with cerebrovascular dysfunction is unknown. We hypothesized that cerebral autoregulation is associated with cardiopulmonary injury in neonates treated with therapeutic hypothermia (TH) for neonatal encephalopathy. METHODS: The cerebral hemoglobin volume index (HVx) from near-infrared spectroscopy was used to identify the mean arterial blood pressure (MAP) with optimal autoregulatory vasoreactivity (MAPOPT)...
January 31, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28130246/severe-hypercapnia-causes-reversible-depression-of-aeeg-background-activity-in-neonates-an-observational-study
#7
Lauren C Weeke, Laura M L Dix, Floris Groenendaal, Petra M A Lemmers, Koen P Dijkman, Peter Andriessen, Linda S de Vries, Mona C Toet
INTRODUCTION: Elevated carbon dioxide (CO2) blood levels have a depressant effect on the central nervous system and can lead to coma in adults. Less is known about the effect of CO2 on the neurological function of infants. OBJECTIVE: To describe the effect of acute severe hypercapnia (PaCO2 >70 mm Hg) on amplitude-integrated electroencephalography (aEEG) and cerebral oxygenation in newborn infants. STUDY DESIGN: Observational study of full-term and preterm infants with acute severe hypercapnia (identified by arterial blood gas measurements), monitored with aEEG...
January 27, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28113987/optical-characterization-of-tissue-phantoms-using-a-silicon-integrated-fdnirs-system-on-chip
#8
Chirag C Sthalekar, Yun Miao, Valencia Joyner Koomson
An interface circuit with signal processing and digitizing circuits for a high frequency, large area avalanche photodiode (APD) has been integrated in a 130 nm BiCMOS chip. The system enables the absolute oximetry of tissue using frequency domain Near Infrared Spectroscopy (fdNIRS). The system measures the light absorbed and scattered by the tissue by measuring the reduction in the amplitude of signal and phase shift introduced between the light source and detector which are placed a finite distance away from each other...
April 2017: IEEE Transactions on Biomedical Circuits and Systems
https://www.readbyqxmd.com/read/28102856/the-impact-of-integrated-evaluation-of-hemodynamics-using-targeted-neonatal-echocardiography-with-indices-of-tissue-oxygenation-a-new-approach
#9
Y N Elsayed, R Amer, M M Seshia
OBJECTIVE: To study the impact of integrated evaluation of hemodynamics (IEH) using targeted neonatal echocardiography, together with regional tissue oxygenation, fractional oxygen extraction using near-infrared spectroscopy on the management of infants with compromised hemodynamics. STUDY DESIGN: Retrospective cohort comparison of two groups of infants with compromised hemodynamics. EPOCH 1: did not undergo IEH (January 2012 to March 2014); EPOCH 2: underwent IEH (April 2014 to December 2015)...
January 19, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28099981/use-of-esophageal-hemoximetry-to-assess-the-effect-of-packed-red-blood-cell-transfusion-on-gastrointestinal-oxygenation-in-newborn-infants
#10
Farha M Vora, Judy Gates, Kimberley Gerard, Shawn Hanson, Richard L Applegate, Arlin B Blood
Objectives There are no widely accepted methods of continuously monitoring gut oxygenation in the newborn during packed red blood cell transfusion. We investigated the use of an orally inserted light spectroscopy probe to measure lower esophageal oxyhemoglobin saturations (eStO2) before, during, and after transfusion and made comparisons with abdominal near-infrared spectroscopy (NIRS) and superior mesenteric artery (SMA) flow. Study Design Thirteen neonates with corrected gestational ages ranging from 22 weeks, 0 day to 37 weeks, 5 days were enrolled...
January 18, 2017: American Journal of Perinatology
https://www.readbyqxmd.com/read/28096239/skin-to-skin-care-in-preterm-infants-receiving-respiratory-support-does-not-lead-to-physiological-instability
#11
Laila Lorenz, Jennifer A Dawson, Hannah Jones, Susan E Jacobs, Jeanie L Cheong, Susan M Donath, Peter G Davis, C Omar F Kamlin
OBJECTIVE: Providing skin-to-skin care (SSC) to preterm infants is standard practice in many neonatal intensive care units. There are conflicting reports on the stability of oxygen saturation (SpO2) during SSC, which may create a barrier to a wider implementation of SSC to infants receiving respiratory support. Regional cerebral oxygenation (rcO2) measured using near-infrared spectroscopy can serve as a surrogate parameter for cerebral oxygen delivery and consumption. We hypothesised that rcO2 during SSC would be similar to standard care in preterm infants receiving respiratory support...
January 17, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28086963/near-infrared-spectroscopy-for-body-fat-sensing-in-neonates-quantitative-analysis-by-gamos-simulations
#12
Fatin Hamimi Mustafa, Peter W Jones, Alistair L McEwan
BACKGROUND: Under-nutrition in neonates is closely linked to low body fat percentage. Undernourished neonates are exposed to immediate mortality as well as unwanted health impacts in their later life including obesity and hypertension. One potential low cost approach for obtaining direct measurements of body fat is near-infrared (NIR) interactance. The aims of this study were to model the effect of varying volume fractions of melanin and water in skin over NIR spectra, and to define sensitivity of NIR reflection on changes of thickness of subcutaneous fat...
January 11, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28067688/perioperative-near-infrared-spectroscopy-monitoring-in-neonates-with-congenital-heart-disease-relationship-of-cerebral-tissue-oxygenation-index-variability-with-neurodevelopmental-outcome
#13
Michael C Spaeder, Darren Klugman, Kami Skurow-Todd, Penny Glass, Richard A Jonas, Mary T Donofrio
OBJECTIVES: To evaluate the value of perioperative cerebral near-infrared spectroscopy monitoring using variability analysis in the prediction of neurodevelopmental outcomes in neonates undergoing surgery for congenital heart disease. DESIGN: Retrospective cohort study. SETTING: Urban, academic, tertiary-care children's hospital. PATIENTS: Neonates undergoing surgery with cardiopulmonary bypass for congenital heart disease...
March 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/27978510/optimizing-cerebral-autoregulation-may-decrease-neonatal-regional-hypoxic-ischemic-brain-injury
#14
Jennifer K Lee, Andrea Poretti, Jamie Perin, Thierry A G M Huisman, Charlamaine Parkinson, Raul Chavez-Valdez, Matthew O'Connor, Michael Reyes, Jillian Armstrong, Jacky M Jennings, Maureen M Gilmore, Raymond C Koehler, Frances J Northington, Aylin Tekes
BACKGROUND: Therapeutic hypothermia provides incomplete neuroprotection for neonatal hypoxic-ischemic encephalopathy (HIE). We examined whether hemodynamic goals that support autoregulation are associated with decreased brain injury and whether these relationships are affected by birth asphyxia or vary by anatomic region. METHODS: Neonates cooled for HIE received near-infrared spectroscopy autoregulation monitoring to identify the mean arterial blood pressure with optimized autoregulatory function (MAPOPT)...
December 16, 2016: Developmental Neuroscience
https://www.readbyqxmd.com/read/27877133/decomposition-of-near-infrared-spectroscopy-signals-using-oblique-subspace-projections-applications-in-brain-hemodynamic-monitoring
#15
Alexander Caicedo, Carolina Varon, Borbala Hunyadi, Maria Papademetriou, Ilias Tachtsidis, Sabine Van Huffel
Clinical data is comprised by a large number of synchronously collected biomedical signals that are measured at different locations. Deciphering the interrelationships of these signals can yield important information about their dependence providing some useful clinical diagnostic data. For instance, by computing the coupling between Near-Infrared Spectroscopy signals (NIRS) and systemic variables the status of the hemodynamic regulation mechanisms can be assessed. In this paper we introduce an algorithm for the decomposition of NIRS signals into additive components...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27862979/cerebral-tissue-oxygenation-index-and-lactate-at-24-hours-postoperative-predict-survival-and-neurodevelopmental-outcome-after-neonatal-cardiac-surgery
#16
Safwat A Aly, David Zurakowski, Penny Glass, Kami Skurow-Todd, Richard A Jonas, Mary T Donofrio
IMPORTANCE: There are no well-established noninvasive biomarkers for identifying patients at risk for poor outcome after surgery for congenital heart disease. Few studies have assessed prognostic accuracy of cerebral tissue oxygenation index (cTOI) measured by near infrared spectroscopy (NIRS). OBJECTIVE: To assess the utility of noninvasive NIRS monitoring as a predictor of outcomes after neonatal cardiac surgery through measurement of cTOI. To examine the utility of noninvasive NIRS monitoring in combination with lactate concentration and inotropic score in prediction of outcomes after neonatal cardiac surgery...
November 10, 2016: Congenital Heart Disease
https://www.readbyqxmd.com/read/27824061/length-free-near-infrared-measurement-of-newborn-malnutrition
#17
Fatin Hamimi Mustafa, Emily J Bek, Jacqueline Huvanandana, Peter W Jones, Angela E Carberry, Heather E Jeffery, Craig T Jin, Alistair L McEwan
Under-nutrition in neonates can cause immediate mortality, impaired cognitive development and early onset adult disease. Body fat percentage measured using air-displacement-plethysmography has been found to better indicate under-nutrition than conventional birth weight percentiles. However, air-displacement-plethysmography equipment is expensive and non-portable, so is not suited for use in developing communities where the burden is often the greatest. We proposed a new body fat measurement technique using a length-free model with near-infrared spectroscopy measurements on a single site of the body - the thigh...
November 8, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27756065/reduction-in-cerebral-oxygenation-due-to-patent-ductus-arteriosus-is-pronounced-in-small-for-gestational-age-neonates
#18
Emily Cohen, Laura Dix, Willem Baerts, Thomas Alderliesten, Petra Lemmers, Frank van Bel
BACKGROUND: A haemodynamically significant patent ductus arteriosus (hsPDA) reduces cerebral oxygenation in appropriate-for-gestational-age (AGA) preterm neonates. Reduced cerebral oxygenation has been associated with brain injury. Preterm small-for-gestational-age (SGA) neonates show higher cerebral oxygenation than AGA peers throughout the first postnatal days. To date, no studies have investigated the effect of hsPDA on cerebral oxygenation in preterm SGA neonates. OBJECTIVE: We aimed to assess the effect of hsPDA on cerebral oxygenation in preterm SGA neonates compared to AGA peers...
2017: Neonatology
https://www.readbyqxmd.com/read/27627794/evaluation-of-cerebral-oxygenation-in-neonates-with-sepsis-with-near-infrared-spectroscopy
#19
Dimitrios Rallis, Paraskevi Karagianni, Eleni Milona, Paraskevi Pratsiou, Nikolaos Nikolaidis, Christos Tsakalidis
Objective Neonates with sepsis have increased risk of cerebral injury. Our aim was to evaluate cerebral oxygenation in septic neonates using near-infrared spectroscopy. Study Design A prospective study was designed enrolling neonates with sepsis, as defined by the International Consensus Conference of Pediatric Sepsis criteria and matched controls. Three cerebral half-hourly measurements were performed during the first, third, and seventh day of the episode and the values of tissue oxygenation index (TOI) and fractional tissue oxygen extraction (FTOE) were compared between the two groups...
April 2017: American Journal of Perinatology
https://www.readbyqxmd.com/read/27603543/near-infrared-spectroscopy-monitoring-superior-vena-cava-flow-and-neurodevelopmental-outcome-at-2-years-in-a-cohort-of-very-low-birth-weight-infants
#20
Rosa Maria Cerbo, Simona Orcesi, Luigia Scudeller, Martina Borellini, Carolina Croci, Claudia Ravelli, Giulia Masa, Piermichele Paolillo, Paolo Manzoni, Umberto Balottin, Mauro Stronati
Objective We aimed at assessing the association between superior vena cava flow (SVCf), regional (cerebral) tissue oxygen saturation (rSO2), and cerebral fractional oxygen extraction (CFOE) during the first 48 hours of life and 2-years neurodevelopmental outcome of very low-birth-weight infants (VLBW). Methods We prospectively studied 60 VLBW infants admitted to our neonatal intensive care unit; rSO2 was continuously monitored with near-infrared spectroscopy during the first 48 hours of life, SVCf was measured at 4 to 6, 12, 24, and 48 hours, and CFOE was calculated...
September 2016: American Journal of Perinatology
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