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https://www.readbyqxmd.com/read/29628590/comparison-of-arterial-oxygenation-and-acid-base-balance-with-the-use-of-transnasal-humidified-rapid-insufflation-ventilatory-exchange-versus-tidal-volume-breathing-with-continuous-positive-airway-pressure-for-preoxygenation-and-apneic-ventilation
#1
Nandhini Joseph, Sunil Rajan, Pulak Tosh, Dilesh Kadapamannil, Lakshmi Kumar
Background: Preoxygenation and apneic ventilation prolong apnea time without desaturation. Aims: The primary objective of this study is to compare arterial oxygenation during the periods of apnea following preoxygenation and apneic ventilation with tidal volume breathing for 3 min with continuous positive airway pressure (CPAP) versus with transnasal humidified rapid-insufflation ventilatory exchange (THRIVE). Settings and Designs: This prospective randomized study was conducted in 20 adult patients at a tertiary care institution...
January 2018: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29571233/blood-lactate-accumulation-during-competitive-freediving-and-synchronized-swimming
#2
Lara RodrÍguez-Zamora, Harald K Engan, Angelica Lodin-Sundström, Fanny Schagatay, Xavier Iglesias, Ferran A Rodríguez, Erika Schagatay
A number of competitive water sports are performed while breath-holding (apnea). Such performances put large demands on the anaerobic system, but the study of lactate accumulation in apneic sports is limited. We therefore aimed to determine and compare the net lactate accumulation (NLA) during competition events in six disciplines of competitive freediving (FD) and three disciplines of synchronized swimming (SSW). The FD disciplines were: static apnea (STA; n = 14); dynamic apnea (DYN; n = 19); dynamic apnea no fins (DNF; n = 16); constant weight (CWT; n = 12); constant weight no fins (CNF; n = 8); free immersion (FIM; n =10)...
January 2018: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
https://www.readbyqxmd.com/read/29530653/implementation-of-a-clinical-bundle-to-reduce-out-of-hospital-peri-intubation-hypoxia
#3
Jeffrey L Jarvis, John Gonzales, Danny Johns, Lauren Sager
STUDY OBJECTIVE: Peri-intubation hypoxia is an important adverse event of out-of-hospital rapid sequence intubation. The aim of this project is to determine whether a clinical bundle encompassing positioning, apneic oxygenation, delayed sequence intubation, and goal-directed preoxygenation is associated with decreased peri-intubation hypoxia compared with standard out-of-hospital rapid sequence intubation. METHODS: We conducted a retrospective, before-after study using data from a suburban emergency medical services (EMS) system in central Texas...
March 9, 2018: Annals of Emergency Medicine
https://www.readbyqxmd.com/read/29464303/brief-ethanol-exposure-and-stress-related-factors-disorganize-neonatal-breathing-plasticity-during-the-brain-growth-spurt-period-in-the-rat
#4
A F Macchione, F Anunziata, B O Haymal, P Abate, J C Molina
RATIONALE: The effects of early ethanol exposure upon neonatal respiratory plasticity have received progressive attention given a multifactorial perspective related with sudden infant death syndrome or hypoxia-associated syndromes. The present preclinical study was performed in 3-9-day-old pups, a stage in development characterized by a brain growth spurt that partially overlaps with the 3rd human gestational trimester. METHODS: Breathing frequencies and apneas were examined in pups receiving vehicle or a relatively moderate ethanol dose (2...
February 21, 2018: Psychopharmacology
https://www.readbyqxmd.com/read/29357505/chemoreflex-mediated-arrhythmia-during-apnea-at-5050m-in-low-but-not-high-altitude-natives
#5
Stephen A Busch, Hannah E Davies, Sean Van Diepen, Lydia L Simpson, Frances Sobierajski, Laurel Riske, Mike Stembridge, Philip N Ainslie, Christopher K Willie, Ryan L Hoiland, Jonathan P Moore, Craig D Steinback
Peripheral chemoreflex mediated increases in both parasympathetic and sympathetic drive under chronic hypoxia may evoke brady-arrhythmias during apneic periods. We determined if: a) voluntary apnea unmasks arrhythmia at sea level and altitude (5050m), b) if high altitude natives (Nepalese Sherpa) exhibit similar cardiovagal responses at altitude; and c) if brady-arrhythmias at altitude are partially chemoreflex mediated. Participants were grouped as Lowlanders (n=14; age=27{plus minus}6yrs) and Nepalese Sherpa (n=8; age=32{plus minus}11yrs)...
December 21, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29315158/increased-incidence-of-obstructive-sleep-apnea-in-hospitalized-children-following-enterovirus-infection-a-nationwide-population-based-cohort-study
#6
Vincent Chin-Hung Chen, Yao-Hsu Yang, Ting-Yu Kuo, Kuo-You Huang, Yin-Cheng Huang, Yena Lee, Roger S McIntyre, Yu-Shu Huang, Chung-Yao Hsu
BACKGROUND: We report the first nationwide population-based cohort study using Taiwan's National Health Insurance Research Database on the association between enterovirus infection and the incidence of sleep disorders in a pediatric population. METHODS: Two matched groups of children under 18 years of age were included in the analyses for non-apneic sleep disorder and obstructive sleep apnea (OSA). Among them, 316 subjects were diagnosed with OSA during the surveillance period, including 182 in the EV infection group and 134 in the non-EV infection group...
January 8, 2018: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29208322/face-mask-leak-with-nasal-cannula-during-noninvasive-positive-pressure-ventilation-a-randomized-crossover-trial
#7
Derek J Brown, Stephen M Carroll, Michael D April
BACKGROUND: Nasal cannula can achieve apneic oxygenation during emergency intubation. However, pre-procedure nasal cannula placement may be difficult in patients undergoing non-invasive positive pressure ventilation (NPPV) prior to intubation. Our objective was to compare mask leak during NPPV with versus without simultaneous application of nasal cannula. We hypothesized mask leak would be no worse with concomitant use of nasal cannula (non-inferiority design). METHODS: We performed a randomized crossover non-inferiority study of healthy volunteers...
December 2, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29198304/neurobehavioral-impairment-and-cpap-treatment-response-in-mild-moderate-obstructive-sleep-apneas
#8
Melinda L Jackson, R Doug McEvoy, Siobhan Banks, Maree Barnes
STUDY OBJECTIVES: The degree of neurobehavioral impairment and treatment response in mild-moderate obstructive sleep apnea (OSA) compared to that of an appropriate control group are unclear. This study compared neurobehavioral function and response to continuous positive airway pressure (CPAP) treatment in patients with mild to moderate OSA with those of a non-sleep apneic community sample of similar demography. METHODS: One hundred ten patients with OSA and 31 asymptomatic community dwellers underwent overnight polysomnography and neurobehavioral testing...
January 15, 2018: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/29151335/comparison-of-tidal-volume-and-deep-breath-preoxygenation-techniquesundergoing-coronary-artery-bypass-graft-surgery-effects-of-hemodynamicresponse-and-arterial-oxygenation
#9
Zafer Taş, Tülay Hoşten, Alparslan Kuş, Sevim Cesur, Neşe Türkyılmaz, Ahmet Arıkan, Zeynep Mine Solak
Background/aim: Different techniques exist for the preoxygenation of patients that will be operated on under general anesthesia. Preoxygenation with the deep breath (DB) method may affect cardiovascular stability, which is crucial for coronary artery bypass graft (CABG) patients. In this study, we aimed to compare the effects of the 3 min TVB preoxygenation technique and 1 min 8DBs technique on hemodynamic response and arterial oxygenation in patients with normal ejection fraction that were scheduled for elective CABG surgery...
November 13, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29120450/apnea-bradycardia-and-desaturation-spells-in-premature-infants-impact-of-a-protocol-for-the-duration-of-spell-free-observation-on-interprovider-variability-and-readmission-rates
#10
P Chandrasekharan, M Rawat, A M Reynolds, K Phillips, S Lakshminrusimha
OBJECTIVE: To study the impact of implementing a protocol to standardize the duration of observation in preterm infants with apnea/bradycardia/desaturation spells before hospital discharge on length of stay (LOS) and readmission rates. STUDY DESIGN: A protocol to standardize the duration of in-hospital observation for preterm infants with apnea, bradycardia and desaturation spells who were otherwise ready for discharge was implemented in December 2013. We evaluated the impact of this protocol on the LOS and readmission rates of very low birth weight infants (VLBW)...
January 2018: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28894372/frequent-respiratory-events-in-postoperative-patients-aged-60-years-and-above
#11
Suzanne Jl Broens, Xuan He, Rachel Evley, Erik Olofsen, Marieke Niesters, Ravi P Mahajan, Albert Dahan, Monique van Velzen
There is limited information on the occurrence of respiratory events in postoperative patients after discharge from the postanesthesia care unit. We studied the respiratory rate (RR) of 68 patients aged 60 years and above during the first 6 hours following elective surgery under general anesthesia to assess the frequency of respiratory events in the care unit and on the ward. RR was derived from the continuous RR counter RespiR8, measuring RR by quantifying the humidity of exhaled air. One-minute-averaged RRs were collected and analyzed to assess the frequency of postoperative bradypnea (RR 1-6 breaths/minute) and apnea (cessation of inspiratory flow ≥60 seconds)...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28879899/hyperekplexia-a-forgotten-diagnosis-clinched-by-next-generation-sequencing
#12
Meenakshi Lallar, Anukool Srivastava, Shubha R Phadke
Hyperekplexia is a rare early neonatal onset, potentially treatable, neurological disorder, characterized by a triad of immediate neonatal-onset stiffness, an exaggerated startle reflex in response to tactile or auditory stimuli followed by short periodical generalized stiffness. It is a monogenic genetically heterogeneous condition which can be potentially life threatening due to apneic episodes and is usually misdiagnosed as seizures. Here, we report two female siblings with hyperekplexia who were being treated by multiple antiepileptic medications for seizure-like episodes...
September 2017: Neurology India
https://www.readbyqxmd.com/read/28791755/emergency-department-use-of-apneic-oxygenation-versus-usual-care-during-rapid-sequence-intubation-a-randomized-controlled-trial-the-endao-trial
#13
RANDOMIZED CONTROLLED TRIAL
Nicholas Caputo, Ben Azan, Rui Domingues, Lee Donner, Mark Fenig, Douglas Fields, Robert Fraser, Karlene Hosford, Richard Iuorio, Marc Kanter, Moira McCarty, Thomas Parry, Andaleeb Raja, Mary Ryan, Blaine Williams, Hemlata Sharma, Daniel Singer, Chris Shields, Sandra Scott, Jason R West
OBJECTIVES: Desaturation leading to hypoxemia may occur during rapid sequence intubation (RSI). Apneic oxygenation (AO) was developed to prevent the occurrence of oxygen desaturation during the apnea period. The purpose of this study was to determine if the application of AO increases the average lowest oxygen saturation during RSI when compared to usual care (UC) in the emergency setting. METHODS: A randomized controlled trial was conducted at an academic, urban, Level I trauma center...
November 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/28775068/active-sleep-unmasks-apnea-and-delayed-arousal-in-infant-rat-pups-lacking-central-serotonin
#14
Jacob O Young, Aron Geurts, Matthew R Hodges, Kevin J Cummings
Sudden infant death syndrome (SIDS), occurring during sleep periods, is highly associated with abnormalities within serotonin (5-HT) neurons, including reduced 5-HT. There is evidence that future SIDS cases experience more apnea and have abnormal arousal from sleep. In rodents, a loss of 5-HT neurons is associated with apnea in early life and, in adulthood, delayed arousal. As the activity of 5-HT neurons changes with vigilance state, we hypothesized that the degree of apnea and delayed arousal displayed by rat pups specifically lacking central 5-HT varies with state...
October 1, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28464406/sustained-apnea-induces-endothelial-activation
#15
Lars Eichhorn, Ramona Dolscheid-Pommerich, Felix Erdfelder, Muhammad Ajmal Ayub, Theresa Schmitz, Nikos Werner, Felix Jansen
BACKGROUND: Apnea diving has gained worldwide popularity, even though the pathophysiological consequences of this challenging sport on the human body are poorly investigated and understood. This study aims to assess the influence of sustained apnea in healthy volunteers on circulating microparticles (MPs) and microRNAs (miRs), which are established biomarkers reflecting vascular function. HYPOTHESIS: Short intermittent hypoxia due to voluntary breath-holding affects circulating levels of endothelial cell-derived MPs (EMPs) and endothelial cell-derived miRs...
September 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28460803/an-unexpected-presentation-of-sick-sinus-syndrome-isolated-ventricular-asystole
#16
Harun Gunes, Feruza Turan Sonmez, Halit Berk Canga, Ayhan Saritas
Sick sinus syndrome is a disorder of sinus node function characterized by various dysrhythmias such as sinus bradycardia or pause, paroxysmal regular or irregular atrial tachycardia, tachycardiabradycardia attacks or atrial fibrillation with slow ventricular response. Ventricular asystole with preserved atrial electrical activity is a rarely seen presenting rhythm in the ED and an extremely rare cause of syncope. A 67-year-old male having a syncope attack was admitted to the emergency department. His Glasgow coma scale score was 15 on admission...
August 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28412161/the-effect-of-the-apneic-period-on-the-respiratory-physiology-of-patients-undergoing-intubation-in-the-ed
#17
Jason R West, Anthony Scoccimarro, Cody Kramer, Nicholas D Caputo
OBJECTIVES: We sought to examine the physiological impact the apneic period has on the respiratory physiology of patients undergoing intubation in the emergency department and whether DAO, the delivery of 15L oxygen by nasal cannula during apnea, can affect the development of respiratory acidosis. METHODS: This was a prospective observational cohort study conducted at an urban academic level 1 trauma center. A convenience sample of 100 patients was taken. Timed data collection forms were completed during the periintubation period...
September 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28325525/clinical-heterogeneity-of-glycine-encephalopathy-in-three-palestinian-siblings-a-novel-mutation-in-the-glycine-decarboxylase-gldc-gene
#18
Waseem Khraim, Bassam Abu-Libdeh, Suhail Ayesh, Imad Dweikat
INTRODUCTION: Glycine encephalopathy (GE), also known as non-ketotic hyperglycinemia (NKH), is a rare inborn error of glycine metabolism caused by a defect in glycine cleavage system, a multi-enzyme complex located in mitochondrial membrane. This defect results in elevated glycine concentration in plasma and cerebrospinal fluid (CSF). Clinical manifestations vary from severe lethargy, hypoactivity and apneic episodes in the neonatal form, mild or moderate psychomotor delay and seizures in the infantile form, and abnormal behaviors, ataxia and choreoathetoid movements in late onset form...
March 18, 2017: Brain & Development
https://www.readbyqxmd.com/read/28153424/seizure-associated-central-apnea-in-a-rat-model-evidence-for-resetting-the-respiratory-rhythm-and-activation-of-the-diving-reflex
#19
S M Villiere, K Nakase, R Kollmar, J Silverman, K Sundaram, M Stewart
Respiratory derangements, including irregular, tachypnic breathing and central or obstructive apnea can be consequences of seizure activity in epilepsy patients and animal models. Periods of seizure-associated central apnea, defined as periods >1s with rapid onset and offset of no airflow during plethysmography, suggest that seizures spread to brainstem respiratory regions to disrupt breathing. We sought to characterize seizure-associated central apneic episodes as an indicator of seizure impact on the respiratory rhythm in rats anesthetized with urethane and given parenteral kainic acid to induce recurring seizures...
May 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28091857/lack-of-heart-rate-variability-during-sleep-related-apnea-in-patients-with-temporal-lobe-epilepsy-tle-an-indirect-marker-of-sudep
#20
C S Nayak, S Sinha, M Nagappa, K Thennarasu, A B Taly
PURPOSE: Apneas occurring during sleep may precipitate autonomic instability in epilepsy patients making them susceptible to sudden death (SUDEP). Literature on heart rate variability (HRV) during apnea among patients with temporal lobe epilepsy (TLE) is sparse. The aim of this study was to characterize the HRV during the peri-apneic period in patients with TLE and compare with HRV of matched healthy individuals during the overnight polysomnographic (PSG) recording. Further, the role of carbamazepine (CBZ) in modulating peri-apneic HRV in the above cohort was also assessed...
March 2017: Sleep & Breathing, Schlaf & Atmung
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