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https://www.readbyqxmd.com/read/29161235/influence-of-ductus-arteriosus-on-peripheral-muscle-oxygenation-and-perfusion-in-neonates
#1
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/29158058/regional-cerebral-oxygen-saturation-level-predicts-30-day-mortality-rate-after-left-ventricular-assist-device-surgery
#2
Soutik Ghosal, Jaimin Trivedi, James Chen, Michael P Rogers, Allen Cheng, Mark S Slaughter, Maiying Kong, Jiapeng Huang
OBJECTIVE: Left ventricular assist device (LVAD) surgery is complex, high risk, and expensive. The authors' hypothesis is baseline regional cerebral oxygen saturation (rSO2) might be a predictor of postoperative clinical outcomes. DESIGN: Retrospective review of 210 consecutive continuous flow LVAD patients between 2008 and 2014. The primary measure is 30-day mortality rate and secondary measures include modified major adverse cardiocerebral events (MACE), length of stay (LOS), and intensive care unit (ICU) stay...
August 19, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29157051/cerebral-nirs-patterns-in-late-preterm-and-very-preterm-infants-becoming-late-preterm
#3
Alice Grometto, Benedetta Pizzo, Maria Chiara Strozzi, Francesca Gazzolo, Diego Gazzolo
BACKGROUND: Near Infrared Spectroscopy (NIRS) has been proposed as a useful, noninvasive monitoring technique providing reliable information about central nervous system (CNS) oximetry and function. Recently, brain damage has been reconsidered as a dynamic process evolving over the weeks of gestation. We therefore investigated NIRS cerebral pattern differences between healthy late preterm infants (LPTo) and very preterm infants becoming late preterm (LPT). METHODS: We conducted an observational study in 40 healthy late preterm infants, matched for gestational age at monitoring, of whom 20 where LPTo and 20 LPT...
November 20, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29152920/using-state-birth-defects-registries-to-evaluate-regional-critical-congenital-heart-disease-newborn-screening
#4
Amy Peterson Case, Stephanie D Miller, Monica R McClain
BACKGROUND: Most states have now passed legislation mandating pulse oximetry for all newborns, or have promulgated regulations or guidelines to encourage use of routine pulse oximetry. State-based birth defects registries may be well positioned to track and evaluate critical congenital heart disease (CCHD) screening coverage and outcomes. This purpose of this study was to determine: (1) the proportion of cases detected by screening, (2) health services use by children with CCHDs during the first year of life, and (3) mortality outcomes...
November 1, 2017: Birth defects research
https://www.readbyqxmd.com/read/29146420/extracorporeal-membrane-oxygenation-used-successfully-in-a-near-fatal-case-of-opioid-induced-acute-respiratory-distress-syndrome
#5
Karen Greenberg, Benjamin Kohl
Acute Respiratory Distress Syndrome (ARDS) was first recognized during the 1960s. It is a distinct type of hypoxemic respiratory failure characterized by acute abnormality of both lungs. Extracorporeal membrane oxygenation (ECMO) is being increasingly used for patients with severe ARDS refractory to otherwise conventional management. A 29year old male arrived with Emergency Medical Services (EMS) status post presumed heroin overdose. He was administered Naloxone 2mg intravenously prior to arrival in the emergency department...
November 8, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29145300/cost-effectiveness-analysis-of-neonatal-screening-of-critical-congenital-heart-defects-in-china
#6
Ruoyan Gai Tobe, Gerard R Martin, Fuhai Li, Akinori Moriichi, Bin Wu, Rintaro Mori
BACKGROUND: Pulse oximetry screening is a highly accurate tool for the early detection of critical congenital heart disease (CCHD) in newborn infants. As the technique is simple, noninvasive, and inexpensive, it has potentially significant benefits for developing countries. The aim of this study is to provide information for future clinical and health policy decisions by assessing the cost-effectiveness of CCHD screening in China. METHODS AND FINDINGS: We developed a cohort model to evaluate the cost-effectiveness of screening all Chinese newborns annually using 3 possible screening options compared to no intervention: pulse oximetry alone, clinical assessment alone, and pulse oximetry as an adjunct to clinical assessment...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145041/transradial-access-for-cerebrovascular-angiography-evaluation-of-palmar-collateral-circulation-with-hand-angiography-and-its-correlation-with-allen-test
#7
Woo-Keun Kwon, Wonki Yoon, Taek-Hyun Kwon, Jong Hyun Kim, Heung-Sub Jung, Jaegeun Ahn, Hanyong Huh, Choel Ji
OBJECTIVES: Transradial cerebral angiography (TRCA) has been introduced as an alternative technique for the transfemoral access, and its use is becoming more common in the field. In this study, we retrospectively analyzed a group of patients who received TRCA, and investigated peri-procedural measurements indicating actual hand circulation, and studied their correlation with the Allen test. PATIENTS AND METHODS: A retrospective review of 168 patients whom underwent TRCA between 2015 July and 2016 July, were included in this study...
October 31, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29143987/effect-of-body-temperature-on-the-pharmacokinetics-of-a-triarylmethyl-type-paramagnetic-contrast-agent-used-in-epr-oximetry
#8
Ken-Ichiro Matsumoto, Fuminori Hyodo, James B Mitchell, Murali C Krishna
PURPOSE: Pharmacokinetics of the tri[8-carboxy-2,2,6,6-tetrakis(2-hydroxymethyl)benzo[1,2-d:4,5-d']bis(1,3)dithio-4-yl]methyl radical (Oxo63) after a single bolus and/or continuous intravenous infusion was investigated in tumor-bearing C3H mice with or without body temperature control while under anesthesia. METHOD: The in vivo time course of Oxo63 in blood was measured using X-band electron paramagnetic resonance spectroscopy. Distribution of Oxo63 in normal muscle and tumor tissues was obtained using a surface coil resonator and a 700-MHz electron paramagnetic resonance spectrometer...
November 16, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29141527/decreases-in-mixed-venous-blood-o2-saturation-in-cardiac-surgery-patients-following-extubation
#9
Jeffrey Williams, Anna McLean, Jalil Ahari, Arun Jose, Georges Al-Helou, Italo Ibi, Farzad Najam Md, Guillermo Gutierrez
BACKGROUND: Decreases in mixed venous O2 saturation (SvO2) have been reported to occur in postcardiac surgery patients during weaning from mechanical ventilation. Our aim was to establish whether the physiological mechanism responsible for this phenomenon was a decrease in systemic O2 delivery (DO2) or an increase in global O2 consumption ([Formula: see text]O2). METHODS: We studied 21 mechanically ventilated, postoperative cardiac patients for 30 minutes before and 60 minutes after extubation...
January 1, 2017: Journal of Intensive Care Medicine
https://www.readbyqxmd.com/read/29141525/hyperacute-hemodynamic-effects-of-bipap-noninvasive-ventilation-in-patients-with-acute-heart-failure-and-left-ventricular-systolic-dysfunction-in-emergency-department
#10
Cinzia Moret Iurilli, Natale Daniele Brunetti, Paola Rita Di Corato, Giuseppe Salvemini, Matteo Di Biase, Marco Matteo Ciccone, Vito Procacci
BACKGROUND: Acute heart failure (AHF) is one of the leading causes of admission to emergency department (ED); severe hypoxemic AHF may be treated with noninvasive ventilation (NIV). Despite the demonstrated clinical efficacy of NIV in relieving symptoms of AHF, less is known about the hyperacute effects of bilevel positive airway pressure (BiPAP) ventilation on hemodynamics of patients admitted to ED for AHF. We therefore aimed to assess the effect of BiPAP ventilation on principal hemodynamic, respiratory, pulse oximetry, and microcirculation indexes in patients admitted to ED for AHF, needing NIV...
January 1, 2017: Journal of Intensive Care Medicine
https://www.readbyqxmd.com/read/29140931/hemispheric-cerebral-oximetry-monitoring-during-pediatric-seizure-activity-in-a-pediatric-emergency-department
#11
Thomas J Abramo, Shane McKinney, James Moore, Richard Jacobs, Gregory Albert, Mark Meredith, Nicholas Hobart Porter, Elizabeth Storm, Errin Willis, Cruz Velasco Gonzalez, Hailey Hargrave, Brad Schneider, Gergory Sharp
BACKGROUND: Sustained neuronal activity during seizures causes cellular perturbations, alterations in cerebral physiology, and potentially neurological injury, a neurological emergency. With variable clinical manifestations of seizures, frequent failure of seizure recognition by providers in pediatric and developmentally challenged patients can increase seizure complications. Neuroresuscitation should include rapid cerebral physiology assessment for increased seizure recognition and optimal neurological outcomes...
November 15, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/29134158/a-quick-evaluation-of-tram-flap-viability-using-fingerstall-type-tissue-oximetry
#12
Itaru Tsuge, Tatsuki Enoshiri, Susumu Saito, Shigehiko Suzuki
Supplemental Digital Content is available in the text.
September 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/29131520/near-infrared-human-finger-measurements-based-on-self-calibration-point-simulation-and-in-vivo-experiments
#13
Hamootal Duadi, Idit Feder, Dror Fixler
Near-infrared light allows measuring tissue oxygenation. These measurements relay on oxygenation dependent absorption spectral changes. However, the tissue scattering, which is also spectral dependent, introduces an intrinsic error. Most methods focus on the volume reflectance from a semi-infinite sample. We have proposed examining the full scattering profile (FSP), which is the angular intensity distribution. A point was found, i.e. the iso-pathlength (IPL) point, which is not dependent on the tissue scattering, and can serve for self-calibration...
November 13, 2017: Journal of Biophotonics
https://www.readbyqxmd.com/read/29130334/pulsed-epr-imaging-applications-in-the-studies-of-tumor-physiology
#14
Shun Kishimoto, Ken-Ichiro Matsumoto, Keita Saito, Ayano Enomoto, Shingo Matsumoto, James Mitchell, Nallathamby Devasahayam, Murali C Krishna
SIGNIFICANCE: Electron Paramagnetic Resonance imaging (EPRI) is a powerful technique capable of generating images of tissue oxygenation using exogenous paramagnetic probes such as trityl radicals or nitroxyl radicals. Using principles similar to Magnetic Resonance Imaging (MRI) with field gradients, the spatial distribution of the paramagnetic probecan be generatedand,from its spectral features, spatial maps of oxygen can be obtained from live objects. In this review, two methods of signal acquisition, image formation/reconstruction will be described...
November 12, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/29126675/combined-somatic-and-cerebral-oximetry-monitoring-in-liver-transplantation-a-novel-approach-to-clinical-diagnosis
#15
EDITORIAL
Kristen K Burton, Elizabeth A Valentine
No abstract text is available yet for this article.
September 1, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29123430/the-use-of-invos%C3%A2-somatic-oximetry-to-measure-variations-in-placental-tissue-oxygenation-in-laboring-healthy-term-parturients-with-epidural-analgesia-an-observational-study
#16
Christian Loubert, Mélissa Ouellette, Valérie Zaphiratos, Issam Tanoubi
Purpose: Near-infrared spectroscopy provides a non-invasive continuous real-time monitoring of tissue oxygen saturation. As uterine contractions during labor may be associated with a transient uteroplacental hypoperfusion, this prospective, observational study investigates the ability of near-infrared spectroscopy to detect variation in uteroplacental oximetry during uterine contractions. Patients and methods: Four Invos™ oximetry probes (Medtronic(®), Minneapolis, MN, USA) per subjects were applied on the placental surface (PLA), the abdomen (MYO), the forearm (ARM) and the leg (LEG), of twenty healthy laboring parturients with epidural analgesia...
2017: Medical Devices: Evidence and Research
https://www.readbyqxmd.com/read/29121971/cmr-based-blood-oximetry-via-multi-parametric-estimation-using-multiple-t2-measurements
#17
Juliet Varghese, Lee C Potter, Richard LaFountain, Xueliang Pan, Subha V Raman, Rizwan Ahmad, Orlando P Simonetti
BACKGROUND: Measurement of blood oxygen saturation (O2 saturation) is of great importance for evaluation of patients with many cardiovascular diseases, but currently there are no established non-invasive methods to measure blood O2 saturation in the heart. While T2-based CMR oximetry methods have been previously described, these approaches rely on technique-specific calibration factors that may not generalize across patient populations and are impractical to obtain in individual patients...
November 9, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29120929/risk-factors-for-opioid-induced-respiratory-depression-and-failure-to-rescue-a-review
#18
Kapil Gupta, Arun Prasad, Mahesh Nagappa, Jean Wong, Lusine Abrahamyan, Frances Chung
PURPOSE OF REVIEW: The primary objective of this review is to identify the risk factors for opioid-induced respiratory depression (OIRD) in the postoperative period. RECENT FINDINGS: In the postoperative period, OIRD has often been reported resulting in morbidity and mortality. The risk factors which predispose surgical patients to increased risk of OIRD are not clearly defined. A literature search was performed for adult surgical patients who were prescribed opioids during their hospital stay and any available reports on postoperative respiratory depression/respiratory events...
November 7, 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/29118365/impaired-development-of-the-cerebral-cortex-in-infants-with-congenital-heart-disease-is-correlated-to-reduced-cerebral-oxygen-delivery
#19
Christopher J Kelly, Antonios Makropoulos, Lucilio Cordero-Grande, Jana Hutter, Anthony Price, Emer Hughes, Maria Murgasova, Rui Pedro A G Teixeira, Johannes K Steinweg, Sagar Kulkarni, Loay Rahman, Hui Zhang, Daniel C Alexander, Kuberan Pushparajah, Daniel Rueckert, Joseph V Hajnal, John Simpson, A David Edwards, Mary A Rutherford, Serena J Counsell
Neurodevelopmental impairment is the most common comorbidity associated with complex congenital heart disease (CHD), while the underlying biological mechanism remains unclear. We hypothesised that impaired cerebral oxygen delivery in infants with CHD is a cause of impaired cortical development, and predicted that cardiac lesions most associated with reduced cerebral oxygen delivery would demonstrate the greatest impairment of cortical development. We compared 30 newborns with complex CHD prior to surgery and 30 age-matched healthy controls using brain MRI...
November 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29117964/clinical-characteristics-of-children-evaluated-for-suspected-pulmonary-embolism-with-d-dimer-testing
#20
Jessica Kanis, Jonathan Pike, Cassandra L Hall, Jeffrey A Kline
BACKGROUND: We sought to determine clinical variables in children tested for suspected pulmonary embolism (PE) that predict PE+ outcome for the development of paediatric PE prediction rule. METHODS: Data were collected by query of a laboratory database for D-dimer from January 2004 to December 2014 for a large multicentre hospital system and the radiology database for pulmonary vascular imaging in children aged 5-17. Using explicit, predefined methods, trained abstractors, determined if D-dimer was sent in the evaluation of PE and then recorded predictor data which was tested for association with PE+ outcome using univariate techniques...
November 8, 2017: Archives of Disease in Childhood
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