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Oxygen saturation targeting

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https://www.readbyqxmd.com/read/28990205/developing-a-protocol-for-normothermic-ex-situ-limb-perfusion
#1
Eliana F R Duraes, Maria Madajka, Russell Frautschi, Basem Soliman, Cagri Cakmakoglu, Addison Barnett, Kashyap Tadisina, Qiang Liu, Patrick Grady, Cristiano Quintini, Toshihiro Okamoto, Francis Papay, Antonio Rampazzo, Bahar Bassiri Gharb
BACKGROUND: Ischemia time represents a significant limitation for successful extremity transplantation because of the rapid deterioration of ischemic muscle. Normothermic ex-situ preservation is an emergent method to prolong the organ viability following procurement, by replicating the physiologic conditions. The aim of this study was to develop an ex-situ normothermic limb perfusion system to preserve the viability and function of porcine limbs for 12 hours following procurement. METHODS: A total of 18 swine limbs were perfused...
October 9, 2017: Microsurgery
https://www.readbyqxmd.com/read/28988158/outcomes-of-oxygen-saturation-targeting-during-delivery-room-stabilisation-of-preterm-infants
#2
Ju Lee Oei, Neil N Finer, Ola Didrik Saugstad, Ian M Wright, Yacov Rabi, William Tarnow-Mordi, Wade Rich, Vishal Kapadia, Denise Rook, John P Smyth, Kei Lui, Maximo Vento
OBJECTIVE: To determine the association between SpO2 at 5 min and preterm infant outcomes. DESIGN: Data from 768 infants <32 weeks gestation from 8 randomised controlled trials (RCTs) of lower (≤0.3) versus higher (≥0.6) initial inspiratory fractions of oxygen (FiO2) for resuscitation, were examined. SETTING: Individual patient analysis of 8 RCTs INTERVENTIONS: Lower (≤0.3) versus higher (≥0.6) oxygen resuscitation strategies targeted to specific predefined SpO2 before 10 min of age...
October 7, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28984090/bispectral-index-monitored-sevoflurane-requirement-might-be-decreased-in-individuals-with-major-depressive-disorder
#3
Veysel Erden, Cihan Güler, Seda Seven, Sevda Bağ, Ali G Kara, Şenay Kirgezen
BACKGROUND: GABA (γ-aminobutyric acid) is the primary inhibitory neurotransmitter in the CNS and well-known target for general anesthetics. In addition, the dysregulation of GABA could be involved in the etiology of MDD. In this study, we aimed to determine whether MDD has any effect on anesthetic requirement measured by bispectral index (BIS). METHODS: This study was designed as a prospective, observational study, registered ANZCTR (ACTRN12616001295437), with institutional review board approval and written informed consent...
October 4, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28977202/effect-of-different-levels-of-peep-on-oxygenation-during-non-invasive-ventilation-in-patients-submitted-to-cabg-surgery-randomized-clinical-trial
#4
André Luiz Lisboa Cordeiro, Caroline Aparecida Gruska, Pâmella Ysla, Amanda Queiroz, Sarah Carvalho de Oliveira Nogueira, Maria Clara Leite, Bruno Freitas, André Raimundo Guimarães
INTRODUCTION: During and after coronary artery bypass grafting, a decline in multifactor lung function is observed. Due to this fact, some patients may benefit from non-invasive ventilation after extubation targeting lung expansion and consequently improved oxygenation. OBJECTIVE: To test the hypothesis that higher levels of positive end expiration pressure during non-invasive ventilation improves oxygenation in patients undergoing coronary artery bypass grafting...
July 2017: Brazilian Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28973227/effect-of-an-early-resuscitation-protocol-on-in-hospital-mortality-among-adults-with-sepsis-and-hypotension-a-randomized-clinical-trial
#5
RANDOMIZED CONTROLLED TRIAL
Ben Andrews, Matthew W Semler, Levy Muchemwa, Paul Kelly, Shabir Lakhi, Douglas C Heimburger, Chileshe Mabula, Mwango Bwalya, Gordon R Bernard
Importance: The effect of an early resuscitation protocol on sepsis outcomes in developing countries remains unknown. Objective: To determine whether an early resuscitation protocol with administration of intravenous fluids, vasopressors, and blood transfusion decreases mortality among Zambian adults with sepsis and hypotension compared with usual care. Design, Setting, and Participants: Randomized clinical trial of 212 adults with sepsis (suspected infection plus ≥2 systemic inflammatory response syndrome criteria) and hypotension (systolic blood pressure ≤90 mm Hg or mean arterial pressure ≤65 mm Hg) presenting to the emergency department at a 1500-bed referral hospital in Zambia between October 22, 2012, and November 11, 2013...
October 3, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28970321/effect-of-a-smaller-target-range-on-the-compliance-in-targeting-and-distribution-of-oxygen-saturation-in-preterm-infants
#6
Henriëtte Anje van Zanten, Steffen C Pauws, Ben J Stenson, Frans J Walther, Enrico Lopriore, Arjan B Te Pas
BACKGROUND: Following recent recommendations, the oxygen saturation (SpO2) target range for preterm infants in our nursery was narrowed towards the higher end from 85%-95% to 90%-95%. We determined the effect of narrowing the SpO2 target range on the compliance in target range and distribution of SpO2 in preterm infants. METHODS: Before and after changing the target range from 85%-95% to 90%-95%, infants <30 weeks of gestation receiving oxygen were compared during their admission on the neonatal intensive care unit...
September 26, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28953054/a-review-of-oxygen-physiology-and-appropriate-management-of-oxygen-levels-in-premature-neonates
#7
Allyson Kayton, Paula Timoney, Lyn Vargo, Jose A Perez
BACKGROUND: Although oxygen is the most widely used therapeutic agent in neonatal care, optimal oxygen management remains uncertain. PURPOSE: We reviewed oxygen physiology and balance, key studies evaluating oxygen saturation targets, and strategies for oxygen use in the neonatal intensive care unit. RESULTS: Oxygen is a potent vasodilator involved in the transition at birth to breathing. Supplemental oxygen is administered to reverse/prevent hypoxia; however, excessive oxygen can be toxic owing to the formation of reactive oxygen species...
September 25, 2017: Advances in Neonatal Care: Official Journal of the National Association of Neonatal Nurses
https://www.readbyqxmd.com/read/28884388/circulating-c3-and-glucose-metabolism-abnormalities-in-patients-with-osahs
#8
Xiaoxia Lu, Xiao Wang, Ting Xu, Yuan Feng, Yufeng Wang, Zechuan Cai, Bing Cao, Taoping Li
PURPOSE: Obstructive sleep apnea hypopnea syndrome (OSAHS) is a common breathing disorder during sleep characterized by multiple disease roots, including disorders of complement and glycometabolism. And the main purpose of the present study is to make clear the effect of complement C3 on glucose metabolism abnormalities in patients with OSAHS. METHODS: This was a cross-sectional study. Two hundred six patients, mean age 44.58 ± 11.84 years and 26 female patients (26/206), had been suspected with OSAHS and underwent overnight polysomnography...
September 7, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28879332/anesthetic-management-for-simultaneous-drug-induced-sleep-endoscopy-and-maxillomandibular-advancement-in-a-patient-with-obstructive-sleep-apnea
#9
Tae Seong Kuk, Eunsun So, Myong-Hwan Karm, Jimin Kim, Seong In Chi, Hyun Jeong Kim, Kwang-Suk Seo, Sung Woon On, Jin-Young Choi
Drug-induced sleep endoscopy (DISE) is used to identify areas of upper airway obstruction, which occurs when patients with obstructive sleep apnea (OSA) snore. DISE enables effective diagnosis and appropriate treatment of the obstruction site. Among surgical treatment methods for OSA, maxillomandibular advancement surgery (MMA) is performed to move a jaw forward; the surgery has a high success rate for OSA treatment. In DISE, anesthetics such as propofol and midazolam must be administered to induce snoring while the patient is deeply sedated for an accurate diagnosis to be made...
March 2017: J Dent Anesth Pain Med
https://www.readbyqxmd.com/read/28877030/radiation-mitigating-properties-of-intranasally-administered-kl4-surfactant-in-a-murine-model-of-radiation-induced-lung-damage
#10
Melpo Christofidou-Solomidou, Ralph A Pietrofesa, Evguenia Arguiri, Constantinos Koumenis, Robert Segal
The threat of exposure to ionizing radiation from a nuclear reactor accident or deliberate terrorist actions is a significant public health concern. The lung is particularly susceptible to radiation-induced injury from external sources or inhalation of radioactive particles from radioactive fallout. Radiation-induced lung disease can manifest with an acute radiation pneumonitis and/or delayed effects leading to pulmonary fibrosis. As prior warning of radiation exposure is unlikely, medical countermeasures (MCMs) to mitigate radiation-induced lung disease that can be given in mass-casualty situations many hours or days postirradiation are needed to prevent both early and late lung damage...
September 6, 2017: Radiation Research
https://www.readbyqxmd.com/read/28872709/implementing-higher-oxygen-saturation-targets-reduced-the-impact-of-poor-weight-gain-as-a-predictor-for-retinopathy-of-prematurity
#11
Pia Lundgren, Anna-Lena Hård, Åsa Wilde, Chatarina Löfqvist, Lois E H Smith, Ann Hellström
AIM: This study evaluated poor weight gain as a risk factor for infants who required treatment for retinopathy of prematurity (ROP), by comparing those born before and after the implementation of higher oxygen saturation (SpO2 ) targets at the Queen Silvia Children's Hospital, Gothenburg, Sweden. METHODS: We compared infants born at less than 31 weeks, who were screened and, or, treated for ROP: 127 in 2011-2012 when SpO2 targets were 88-92% and 142 in 2015-2016 when they were 91-95%...
September 5, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28869712/acute-oxygen-therapy-an-audit-of-prescribing-and-delivery-practices-in-a-tertiary-hospital-in-perth-western-australia
#12
Anam Kamran, Elisa Chia, Claire Tobin
BACKGROUND: Oxygen is a widely used drug in the hospital setting. However, international audits suggest that oxygen administration practices are often not compliant with prescribed standards. This can place patients at risk and cause serious adverse events. AIM: To analyse data related to recent practices of oxygen prescription and administration at Royal Perth Hospital (RPH), Western Australia. The results of this audit aim to guide further research on possible interventional studies implementing key solutions...
September 4, 2017: Internal Medicine Journal
https://www.readbyqxmd.com/read/28853509/-comparison-between-propofol-and-propofol-remifentanil-sedation-under-target-controlled-infusion-for-impacted-supernumerary-teeth-extraction-surgery-for-children
#13
Zhang Hao, Hou Yali, Li Xiangjun, Dong Fusheng, Lin Ruihua
Objective The aim of this study is to compare sedation titrated under target-controlled infusion of propofol and propofol-remifentanil for impacted supernumerary teeth extraction surgery for children. Methods A total of 60 children with anterior maxillary region impacted supernumerary teeth extraction surgery were divided randomly into two groups, namely, propofol group (group P, n=30) and propofol-remifentanil group (group PR, n=30). In group P, a titrated infusion of propofol was started until the modified observer's assessment of alertness/sedation (OAA/S) scale reached level 3 before the actual surgery...
August 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28839100/platelet-clec-2-protects-against-lung-injury-via-effects-of-its-ligand-podoplanin-on-inflammatory-alveolar-macrophages-in-the-mouse
#14
Sian Lax, Julie Rayes, Surasak Wichaiyo, Elizabeth J Haining, Kate Lowe, Beata Grygielska, Ryan Laloo, Per Flodby, Zea Borok, Edward D Crandall, David Thickett, Steve P Watson
There is no therapeutic intervention proven to prevent the acute respiratory syndrome (ARDS). Novel mechanistic insights into the pathophysiology of ARDS are therefore required. Platelets are implicated in regulating many of the pathogenic processes which occur during ARDS, however the mechanisms remain elusive. The platelet receptor C-type lectin-like 2 (CLEC-2) has been shown to regulate vascular integrity at sites of acute inflammation. Therefore, the purpose of this study was to establish the role of CLEC-2 and its ligand podoplanin in a mouse model of ARDS...
August 24, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28836743/hydrography-shapes-amoa-containing-thaumarcheota-in-the-coastal-waters-off-central-chile
#15
Anthony D Bertagnolli, Osvaldo Ulloa
Thaumarchaea are often abundant in low oxygen marine environments, and recent kinetic studies indicate a capacity for aerobic ammonia oxidation at vanishingly low oxygen levels (nM). However, molecular diversity surveys targeting this group to high sequencing coverage are limited, and how these populations are coupled to changes in dissolved oxygen remains unknown. In this study, the ammonia monooxygenase subunit A (amoA) gene was sequenced from samples collected in the Chilean coast (36.5 °S), a system prone to recurrent seasonal hypoxia and anoxia, at several depths over one year, to read depths that saturated coverage statistics...
August 24, 2017: Environmental Microbiology Reports
https://www.readbyqxmd.com/read/28795375/evolutionary-significance-of-selected-edar-variants-in-tibetan-high-altitude-adaptations
#16
Jianming Shao, Muhammad Sohail Raza, Basang Zhuoma, Changqing Zeng
Humans have been exposed to many environmental challenges since their evolutionary origins in Africa and subsequent migrations to the rest of the world. A severe environmental challenge to human migrants was hypoxia caused by low barometric oxygen pressure at high altitudes. Several genome-wide scans have elucidated the genetic basis of human high-altitude adaptations. However, the dearth of functional variant information has led to the successful association of only a few candidate genes. In the present study, we employed a candidate gene approach and re-sequenced the EDAR locus in 45 Tibetan individuals to identify mutations involved in hypoxia adaptation...
August 8, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28774636/sleep-as-a-new-target-for-improving-outcomes-in-idiopathic-pulmonary-fibrosis
#17
REVIEW
Charalampos Mermigkis, Izolde Bouloukaki, Sophia E Schiza
Idiopathic pulmonary fibrosis (IPF) is the most common type of interstitial pneumonia but remains a disease with a poor outcome. Two drugs, pirfenidone and nintedanib, have shown promising results at stalling disease progression; however, the interplay of sleep disruption or sleep disorders overall and in relation to medication effectiveness remains understudied. In the past, there was limited interest in the role of sleep in patients with IPF. Treating physicians tended to address only the daily disabling symptoms while disregarding the possible significant role of sleep alterations or coexisting sleep disorders...
August 1, 2017: Chest
https://www.readbyqxmd.com/read/28771211/the-fetus-can-teach-us-oxygen-and-the-pulmonary-vasculature
#18
REVIEW
Payam Vali, Satyan Lakshminrusimha
Neonates suffering from pulmonary hypertension of the newborn (PPHN) continue to represent an important proportion of patients requiring intensive neonatal care, and have an increased risk of morbidity and mortality. The human fetus has evolved to maintain a high pulmonary vascular resistance (PVR) in utero to allow the majority of the fetal circulation to bypass the lungs, which do not participate in gas exchange, towards the low resistance placenta. At birth, oxygen plays a major role in decreasing PVR to enhance pulmonary blood flow and establish the lungs as the organ of gas exchange...
August 3, 2017: Children
https://www.readbyqxmd.com/read/28763941/assessment-of-biodegradation-potential-at-a-site-contaminated-by-a-mixture-of-btex-chlorinated-pollutants-and-pharmaceuticals-using-passive-sampling-methods-case-study
#19
Ondřej Lhotský, Eva Krákorová, Lucie Linhartová, Zdena Křesinová, Jana Steinová, Lukáš Dvořák, Torgeir Rodsand, Alena Filipová, Kristýna Kroupová, Lenka Wimmerová, Jan Kukačka, Tomáš Cajthaml
The present study describes a pilot remediation test of a co-mingled plume containing BTEX, chlorinated pollutants and pharmaceuticals. Remediation was attempted using a combination of various approaches, including a pump and treat system applying an advanced oxidation process and targeted direct push injections of calcium peroxide. The remediation process was monitored intensively and extensively throughout the pilot test using various conventional and passive sampling methods, including next-generation amplicon sequencing...
December 31, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28762916/-predictors-of-electrical-myocardial-instability-in-men-with-arterial-hypertension-and-obstructive-sleep-apnea-hypopnea-syndrome
#20
O V Lyshova, N V Borodin, I I Kostenko
OBJECTIVE: To access the detectability of corrected QT interval (QTc) prolongation ( more or equal 450 ms) and increased QT dispersion (QTd more or equal 60 ms) in men with obstructive sleep apnea-hypopnea syndrome (OSAS) and newly diagnosed arterial hypertension (AH). MATERIAL AND METHODS: We included in this study 138 men (mean age 40.5+/-6.9 years, body mass index 34.5+/-4.7 kg/m2, all with more or equal 3 risk factors of AH development, 34% with subclinical target organs damage)...
May 2017: Kardiologiia
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