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https://www.readbyqxmd.com/read/29709397/prognosis-value-of-partial-arterial-oxygen-pressure-in-patients-with-septic-shock-subjected-to-pre-hospital-invasive-ventilation
#1
Romain Jouffroy, Anastasia Saade, Laure Castres Saint Martin, Pascal Philippe, Pierre Carli, Benoit Vivien
OBJECTIVE: Mechanical ventilation can help improve the prognosis of septic shock. While adequate delivery of oxygen to the tissue is crucial, hyperoxemia may be deleterious. Invasive out-of-hospital ventilation is often promptly performed in life-threatening emergencies. We propose to determine whether the arterial oxygen pressure (PaO2 ) at the intensive care unit (ICU) admission is associated with mortality in patients with septic shock subjected to pre-hospital mechanical ventilation...
April 24, 2018: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29694990/respiratory-instability-and-hypoxemia-episodes-in-preterm-infants
#2
Eduardo Bancalari, Nelson Claure
Oxygenation instability is a very common problem in the premature infant that manifests as intermittent hypoxemia episodes (HEs). These are particularly frequent in premature infants who are on mechanical ventilation beyond the first weeks after birth. However, they can also occur in spontaneously breathing infants. Some of these episodes are due to central apnea, but in ventilated infants, they are frequently due to contractions of the abdominal musculature that can splint the respiratory pump, resulting in periods of decreased lung volume and hypoventilation...
May 2018: American Journal of Perinatology
https://www.readbyqxmd.com/read/29605719/oxygen-management-in-mechanically-ventilated-patients-a-multicenter-prospective-observational-study
#3
Moritoki Egi, Jun Kataoka, Takashi Ito, Osamu Nishida, Hideto Yasuda, Hiroshi Okamaoto, Akira Shimoyama, Masayo Izawa, Shinsaku Matsumoto, Nana Furushima, Shigeki Yamashita, Koji Takada, Masahide Ohtsuka, Noritomo Fujisaki, Nobuaki Shime, Nobuhiro Inagaki, Yasuhiko Taira, Tomoaki Yatabe, Kenichi Nitta, Takeshi Yokoyama, Shigeki Kushimoto, Kentaro Tokunaga, Matsuyuki Doi, Takahiro Masuda, Yasuo Miki, Kenichi Matsuda, Takehiko Asaga, Keita Hazama, Hiroki Matsuyama, Masaji Nishimura, Satoshi Mizobuchi
PURPOSE: To observe arterial oxygen in relation to fraction of inspired oxygen (FI O2 ) during mechanical ventilation (MV). MATERIALS AND METHODS: In this multicenter prospective observational study, we included adult patients required MV for >48h during the period from March to May 2015. We obtained FI O2 , PaO2 and SaO2 from commencement of MV until the 7th day of MV in the ICU. RESULTS: We included 454 patients from 28 ICUs in this study...
March 21, 2018: Journal of Critical Care
https://www.readbyqxmd.com/read/29571932/optimal-target-range-of-closed-loop-inspired-oxygen-support-in-preterm-infants-a-randomized-cross-over-study
#4
Maria Elisabeth Nicoletta van den Heuvel, Henriette A van Zanten, Tom E Bachman, Arjan B Te Pas, Anton H van Kaam, Wes Onland
OBJECTIVE: To investigate the effect of different pulse oximetry (SpO2 ) target range settings during automated fraction of inspired oxygen control (A-FiO2 ) on time spent within a clinically set SpO2 alarm range in oxygen-dependent infants on noninvasive respiratory support. STUDY DESIGN: Forty-one preterm infants (gestational age [median] 26 weeks, age [median] 21 days) on FiO2  >0.21 receiving noninvasive respiratory support were subjected to A-FiO2 using 3 SpO2 target ranges (86%-94%, 88%-92%, or 89%-91%) in random order for 24 hours each...
March 21, 2018: Journal of Pediatrics
https://www.readbyqxmd.com/read/29553985/current-ventilator-and-oxygen-management-during-general-anesthesia-a-multicenter-cross-sectional-observational-study
#5
Satoshi Suzuki, Yuko Mihara, Yukiko Hikasa, Shuji Okahara, Takuma Ishihara, Ayumi Shintani, Hiroshi Morimatsu, Akiko Sato, Sachio Kusume, Hidekuni Hidaka, Hidehiko Yatsuzuka, Masahiro Okawa, Makoto Takatori, Shinsei Saeki, Takeshi Samuta, Hiroaki Tokioka, Toshiaki Kurasako, Masato Maeda, Mamoru Takeuchi, Akihito Hirasaki, Michio Kitaura, Hideki Kajiki, Osamu Kobayashi, Hiroshi Katayama, Hideki Nakatsuka, Satoshi Mizobuchi, Seiji Sugimoto, Masataka Yokoyama, Kazuhito Kusudo, Kensuke Shiraishi, Toshio Iwaki, Tatsuhiko Komatsu, Yasuo Hirai, Tetsufumi Sato, Masakazu Kimura, Takeshi Yasukawa, Motonobu Kimura, Masahiro Taniguchi, Yutaka Shimoda, Yoji Kobayashi, Mitsunori Tsukioki, Nobuki Manabe, Eiji Ando, Makoto Kosaka, Takashi Tsukiji, Chika Tokura, Yasuhiro Asao, Masatoshi Sugiyama, Kozo Seto
BACKGROUND: Intraoperative oxygen management is poorly understood. It was hypothesized that potentially preventable hyperoxemia and substantial oxygen exposure would be common during general anesthesia. METHODS: A multicenter, cross-sectional study was conducted to describe current ventilator management, particularly oxygen management, during general anesthesia in Japan. All adult patients (16 yr old or older) who received general anesthesia over 5 consecutive days in 2015 at 43 participating hospitals were identified...
March 19, 2018: Anesthesiology
https://www.readbyqxmd.com/read/29464691/a-pilot-study-of-hyperoxemia-on-neurological-injury-inflammation-and-oxidative-stress
#6
M Lång, M B Skrifvars, J Siironen, P Tanskanen, M Ala-Peijari, T Koivisto, S Djafarzadeh, S Bendel
BACKGROUND: Normobaric hyperoxia is used to alleviate secondary brain ischaemia in patients with traumatic brain injury (TBI), but clinical evidence is limited and hyperoxia may cause adverse events. METHODS: An open label, randomised controlled pilot study comparing blood concentrations of reactive oxygen species (ROS), interleukin 6 (IL-6) and neuron-specific enolase (NSE) between two different fractions of inspired oxygen in severe TBI patients on mechanical ventilation...
February 20, 2018: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/29380954/mechanical-ventilation-strategies-alter-cardiovascular-biomarkers-in-an-infant-rat-model
#7
Philipp Baumann, Susanne Wiegert, Francesco Greco, Sven Wellmann, Pietro L'Abate, Vincenzo Cannizzaro
Mechanical ventilation (MV) is routinely used in pediatric general anesthesia and critical care, but may adversely affect the cardiocirculatory system. Biomarkers are increasingly measured to assess cardiovascular status and improve clinical treatment decision-making. As the impact of mechanical ventilation strategies on cardiovascular biomarkers in ventilated infants is largely unknown, we conducted this retrospective study in a healthy in vivo infant rat ventilation model using 14-days old Wistar rats. We hypothesized that 2 h of mechanical ventilation with high and low positive end-expiratory pressure (PEEP), hyperoxemia, hypoxemia, hypercapnia, and hypocapnia would significantly impact B-type natriuretic peptide (BNP), vascular endothelial growth factor (VEGF), and endothelin-1 (ET-1)...
January 2018: Physiological Reports
https://www.readbyqxmd.com/read/29337748/avoidance-of-hyperoxemia-during-cardiopulmonary-bypass-why-does-pathophysiology-not-always-translate-into-clinical-outcome
#8
Hilary P Grocott, David Faraoni
No abstract text is available yet for this article.
February 2018: Anesthesiology
https://www.readbyqxmd.com/read/29334496/oxygen-in-the-critically-ill-friend-or-foe
#9
Elisa Damiani, Abele Donati, Massimo Girardis
PURPOSE OF REVIEW: To examine the potential harmful effects of hyperoxia and summarize the results of most recent clinical studies evaluating oxygen therapy in critically ill patients. RECENT FINDINGS: Excessive oxygen supplementation may have detrimental pulmonary and systemic effects because of enhanced oxidative stress and inflammation. Hyperoxia-induced lung injury includes altered surfactant protein composition, reduced mucociliary clearance and histological damage, resulting in atelectasis, reduced lung compliance and increased risk of infections...
April 2018: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/29205980/retinopathy-of-prematurity-from-recognition-of-risk-factors-to-treatment-recommendations
#10
REVIEW
Reija Fagerholm, Eija Vesti
Retinopathy of prematurity is a proliferative retinal disorder diagnosed exclusively in prematurely born infants. In retinopathy of prematurity, growth of the retinal vasculature is disturbed, leading to hypoxia-induced pathological changes typical of retinopathy of prematurity, in the worst case resulting in retinal detachment. The most typical risk factors predisposing to the disease include hyperoxemia, low levels of insulin-like growth factor 1 (IGF-I), and low birth weight in relation to weeks of pregnancy...
2017: Duodecim; Lääketieteellinen Aikakauskirja
https://www.readbyqxmd.com/read/29084407/hypoxemia-episodes-during-day-and-night-and-their-impact-on-oxygen-saturation-targeting-in-mechanically-ventilated-preterm-infants
#11
Deepak Jain, Carmen D'Ugard, Jose Bello, Eduardo Bancalari, Nelson Claure
BACKGROUND: Hypoxemia episodes (HE) occur frequently in ventilated preterm infants and hinder the achievement of arterial oxygen saturation (SpO2) targets. These episodes may increase the risk for retinopathy of prematurity and neurodevelopmental disability. There are no data on the variation in HE and SpO2 targeting between day and night. OBJECTIVE: The aim of this study was to evaluate the difference between day and night on the frequency and severity of HE and achievement of SpO2 targets...
2018: Neonatology
https://www.readbyqxmd.com/read/28915219/intrabronchial-catheter-resuscitation-for-respiratory-and-cardiorespiratory-arrest
#12
Jeffrey S Wolf, Andrea Hebert, Pablo Sanchez, Marniker Wijesinha, Scott Shapiro, Robert Morales, Aldo T Iacono
INTRODUCTION: We sought to determine whether intrabronchial oxygenation would provide adequate gas exchange during both anesthesia induced apneic and cardiopulmonary arrest and cardiac massage (CPR). METHODS: Ten pigs underwent general anesthesia with mechanical ventilation. Blood gases were measured in each animal at 4 min intervals for up to 28 min. An intrabronchial catheter (4 L/min O2) was inserted through an endotracheal tube after respirator cessation. Group A animals (6) were resuscitated with the catheter but without CPR...
September 14, 2017: Shock
https://www.readbyqxmd.com/read/28870720/post-resuscitation-arterial-oxygen-and-carbon-dioxide-and-outcomes-after-out-of-hospital-cardiac-arrest
#13
Henry E Wang, David K Prince, Ian R Drennan, Brian Grunau, David J Carlbom, Nicholas Johnson, Matthew Hansen, Jonathan Elmer, Jim Christenson, Peter Kudenchuk, Tom Aufderheide, Myron Weisfeldt, Ahamed Idris, Stephen Trzeciak, Michael Kurz, Jon C Rittenberger, Denise Griffiths, Jamie Jasti, Susanne May
OBJECTIVE: To determine if arterial oxygen and carbon dioxide abnormalities in the first 24h after return of spontaneous circulation (ROSC) are associated with increased mortality in adult out-of-hospital cardiac arrest (OHCA). METHODS: We used data from the Resuscitation Outcomes Consortium (ROC), including adult OHCA with sustained ROSC ≥1h after Emergency Department arrival and at least one arterial blood gas (ABG) measurement. Among ABGs measured during the first 24h of hospitalization, we identified the presence of hyperoxemia (PaO2≥300mmHg), hypoxemia (PaO2<60mmHg), hypercarbia (PaCO2>50mmHg) and hypocarbia (PaCO2<30mmHg)...
November 2017: Resuscitation
https://www.readbyqxmd.com/read/28771211/the-fetus-can-teach-us-oxygen-and-the-pulmonary-vasculature
#14
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/28682957/the-new-world-health-organization-recommendations-on-perioperative-administration-of-oxygen-to-prevent-surgical-site-infections-a-dangerous-reductionist-approach
#15
Manuel Wenk, Hugo Van Aken, Alexander Zarbock
In October 2016, the World Health Organization (WHO) published recommendations for preventing surgical site infections (SSIs). Among those measures is a recommendation to administer oxygen at an inspired fraction of 80% intra- and postoperatively for up to 6 hours. SSIs have been identified as a global health problem, and the WHO should be commended for their efforts. However, this recommendation focuses only on the patient's "wound," ignores other organ systems potentially affected by hyperoxia, and may ultimately worsen patient outcomes...
August 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28396202/newborn-blood-gas-derangements-of-children-born-extremely-preterm-and-neurocognitive-dysfunctions-at-age-10-years
#16
Alan Leviton, Elizabeth N Allred, Robert M Joseph, T Michael O'Shea, Karl C K Kuban
Among 740 children born extremely preterm, we evaluated the relationship between the highest and lowest quartiles of the distributions of PaO2 and PaCO2, as well as the lowest quartile of pH on one day, and separately on two days, and the risk of neurocognitive, language, and behavioral dysfunctions at age 10 years. Children who had hypoxemia, hyperoxemia, hypocapnia, hypercapnia, and acidemia, sometimes on only one day, and sometimes on two or more days, were more likely than others to have a high illness severity score (within the first 12 postnatal hours), and 10 years later to have multiple dysfunctions...
August 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28327970/in-reply-early-moderate-hyperoxemia-does-not-predict-outcome-after-aneurysmal-subarachnoid-hemorrhage
#17
Maarit Lång, Rahul Raj, Markus Benedikt Skrifvars, Matti Reinikainen, Stepani Bendel
No abstract text is available yet for this article.
May 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28327929/letter-early-moderate-hyperoxemia-does-not-predict-outcome-after-aneurysmal-subarachnoid-hemorrhage
#18
Kailei Du, Yanfei Shen
No abstract text is available yet for this article.
May 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28277364/intrauterine-hyperoxemia-and-risk-of-neonatal-morbidity
#19
Nandini Raghuraman, Lorene A Temming, Molly J Stout, George A Macones, Alison G Cahill, Methodius G Tuuli
OBJECTIVE: To test the hypothesis that intrauterine hyperoxemia is associated with an increased risk of neonatal morbidity. METHODS: This was a secondary analysis of a prospective study of singleton, nonanomalous deliveries at or beyond 37 weeks of gestation at an institution with a universal umbilical cord gas policy from 2010 to 2014. The primary outcome was a composite of neonatal morbidity including neonatal death, meconium aspiration syndrome, intubation, mechanical ventilation, hypoxic-ischemic encephalopathy, and hypothermic therapy...
April 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27992386/applying-computer-models-to-realize-closed-loop-neonatal-oxygen-therapy
#20
COMPARATIVE STUDY
Edmund Morozoff, John A Smyth, Mehrdad Saif
BACKGROUND: Within the context of automating neonatal oxygen therapy, this article describes the transformation of an idea verified by a computer model into a device actuated by a computer model. Computer modeling of an entire neonatal oxygen therapy system can facilitate the development of closed-loop control algorithms by providing a verification platform and speeding up algorithm development. METHODS: In this article, we present a method of mathematically modeling the system's components: the oxygen transport within the patient, the oxygen blender, the controller, and the pulse oximeter...
January 2017: Anesthesia and Analgesia
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