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End tidal CO2

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https://www.readbyqxmd.com/read/28087235/hemodynamic-consequence-of-hand-ventilation-versus-machine-ventilation-during-transport-after-cardiac-surgery
#1
E Orestes O'Brien, Beverly J Newhouse, Brett Cronin, Kimberly Robbins, Albert P Nguyen, Swapnil Khoche, Ulrich Schmidt
OBJECTIVES: The hemodynamic consequences of ventilation of intubated patients during transport either by hand or using a transport ventilator have not been reported in patients after cardiac surgery. The authors hypothesized that bag-mask ventilation would alter end-tidal CO2 during transport and hemodynamic parameters in patients post-cardiac surgery. DESIGN: A prospective, randomized trial. SETTING: A university-affiliated tertiary care hospital...
November 9, 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28079815/morning-breathing-exercises-prolong-lifespan-by-improving-hyperventilation-in-people-living-with-respiratory-cancer
#2
Wei-Jie Wu, Shan-Huan Wang, Wei Ling, Li-Jun Geng, Xiao-Xi Zhang, Lan Yu, Jun Chen, Jiang-Xi Luo, Hai-Lu Zhao
Disturbance of oxygen-carbon dioxide homeostasis has an impact on cancer. Little is known about the effect of breath training on cancer patients. Here we report our 10-year experience with morning breathing exercises (MBE) in peer-support programs for cancer survivors.We performed a cohort study to investigate long-term surviving patients with lung cancer (LC) and nasopharyngeal cancer (NPC) who practiced MBE on a daily basis. End-tidal breath holding time (ETBHT) after MBE was measured to reflect improvement in alveolar O2 pressure and alveolar CO2 pressure capacity...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28074492/confirmation-of-resting-state-bold-fluctuations-in-the-human-brainstem-and-spinal-cord-after-identification-and-removal-of-physiological-noise
#3
Shreyas Harita, Patrick W Stroman
PURPOSE: Resting-state functional MRI (rs-fMRI) has been used to investigate networks within the cortex, but its use in the brainstem (BS) and spinal cord (SC) has been limited. This region presents challenges for fMRI, partly because of sources of physiological noise. This study aims to quantify noise contributions to rs-fMRI, and to obtain evidence of resting-state blood oxygenation level-dependent (BOLD) fluctuations. METHODS: Resting-state-fMRI data were obtained from the BS/SC in 16 participants, at 3 Tesla, with T2 -weighted single-shot fast spin-echo imaging...
January 11, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28066834/the-role-of-ventilation-mode-using-a-laryngeal-mask-airway-during-gynecological-laparoscopy-on-lung-mechanics-hemodynamic-response-and-blood-gas-analysis
#4
Mohammad Hossein Jarahzadeh, Iman Halvaei, Farshid Rahimi-Bashar, Shekoufeh Behdad, Rouhollah Abbasizadeh Nasrabady, Elahe Yasaei
BACKGROUND: There are two methods for ventilation in gynecological laparoscopy: volume-controlled ventilation (VCV) and pressure-controlled ventilation (PCV). OBJECTIVE: To compare the lung mechanics, hemodynamic response and arterial blood gas analysis and gas exchange of two modes of VCV and PCV using laryngeal mask airway (LMA) at different time intervals. MATERIALS AND METHODS: Sixty infertile women referred for diagnostic laparoscopy, based on ventilation mode, were randomly divided into two groups of VCV (tidal volume: 10 ml/kg) and PCV...
December 2016: International Journal of Reproductive Biomedicine (Yazd, Iran)
https://www.readbyqxmd.com/read/28043202/sex-specific-cardiopulmonary-exercise-testing-indices-related-to-hemodynamics-in-idiopathic-pulmonary-arterial-hypertension
#5
Ping Yuan, Tian-Xiang Chen, Bigyan Pudasaini, Jie Zhang, Jian Guo, Si-Jin Zhang, Lan Wang, Qin-Hua Zhao, Su-Gang Gong, Rong Jiang, Wen-Hui Wu, Jing He, Jin-Ming Liu, Qing-Hua Hu
BACKGROUND: Many studies have highlighted sex preponderance in idiopathic pulmonary arterial hypertension (IPAH). It is well established that there are differences in exercise capacities in the two sexes but how much of that difference reflects on disease severity or correlates to markers of severity in the two sexes is still not clear. Right heart catheterization (RHC) and cardiopulmonary exercise testing (CPET) have been widely used for assessing functional capacity, prognosis and treatment response in IPAH...
January 1, 2017: Therapeutic Advances in Respiratory Disease
https://www.readbyqxmd.com/read/28038898/demographic-and-systemic-hemodynamic-influences-in-mechanisms-of-cerebrovascular-regulation-in-healthy-adults
#6
João Madureira, Pedro Castro, Elsa Azevedo
OBJECTIVES: A competent cerebrovascular regulation maintains an adequate cerebral blood flow by 3 major mechanisms: cerebral autoregulation (CA), vasomotor reactivity (VMR), namely to CO2, and neurovascular coupling (NVC). However, most studies generalize their results based on a response to a single parameter. Using a full battery of neurovascular stress tests, our study aims to evaluate the relationships among grades of CA, VMR, and NVC, and how their interplay is influenced by demographic and systemic hemodynamic factors...
December 27, 2016: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28032265/using-continuous-quantitative-capnography-for-emergency-department-procedural-sedation-a-systematic-review-and-cost-effectiveness-analysis
#7
Nicholas Matthew Mohr, Andrew Stoltze, Azeemuddin Ahmed, Elizabeth Kiscaden, Dan Shane
End-tidal CO2 has been advocated to improve safety of emergency department (ED) procedural sedation by decreasing hypoxia and catastrophic outcomes. This study aimed to estimate the cost-effectiveness of routine use of continuous waveform quantitative end-tidal CO2 monitoring for ED procedural sedation in prevention of catastrophic events. Markov modeling was used to perform cost-effectiveness analysis to estimate societal costs per prevented catastrophic event (death or hypoxic brain injury) during routine ED procedural sedation...
December 28, 2016: Internal and Emergency Medicine
https://www.readbyqxmd.com/read/28029370/pneumoperitoneum-and-hemodynamic-stability-during-pediatric-laparoscopic-appendectomy
#8
Go Miyano, Hiroki Nakamura, Shogo Seo, Ryo Sueyoshi, Manabu Okawada, Takashi Doi, Hiroyuki Koga, Geoffrey J Lane, Atsuyuki Yamataka
BACKGROUND: Conventional pneumoperitoneum (CP) and automatically maintained pneumoperitoneum using AirSeal Intelligent Flow System (AiFS) were compared during pediatric laparoscopic appendectomy (LA) using intraperitoneal pressure (IPP) and hemodynamic parameters. METHODS: A prospective review of 39 children aged 3-14years who had standard 3-trocar LA was performed. Pneumoperitoneum was either AiFS (n=18) or CP (n=21) according to the surgeon's preference. IPP during insertion of trocars in all subjects was initially 8-10mmHg, which was reduced to 5mmHg then maintained until LA was completed...
September 15, 2016: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28028530/acid-base-and-hemodynamic-status-of-patients-with-intraoperative-hemorrhage-using-two-solution-types-crystalloid-ringer-lactate-and-1-3-sodium-bicarbonate-in-half-normal-saline-solution
#9
Sayed Jalal Hashemi, Sayed Morteza Heidari, Ahmad Yaraghi, Reza Seirafi
BACKGROUND: Intraoperative hemorrhage is one of the problems during surgery and, if it happens in a high volume without an immediate action to control, it can be fatal. Nowadays, various injectable solutions are used. The aim of this study was to compare the acid-base and hemodynamic status of the patient using two solutions, Ringer lactate and 1.3% sodium bicarbonate, in half saline solution. MATERIALS AND METHODS: This clinical trial was performed at the Al-Zahra Hospital in 2013 on 66 patients who were randomly selected and put in two studied groups at the onset of hemorrhage...
2016: Advanced Biomedical Research
https://www.readbyqxmd.com/read/28003557/comparing-the-effects-of-two-different-levels-of-hyperoxygenation-on-gas-exchange-during-open-endotracheal-suctioning-a-randomized-crossover-study
#10
Jacqueline Rodrigues de Freitas Vianna, Valéria Amorim Pires Di Lorenzo, Miléa Mara Lourenço da Silva Simões, Maurício Jamami
BACKGROUND: Endotracheal suctioning is required for mechanically ventilated patients to maintain a patent airway. Studies show that open endotracheal suctioning affects respiratory mechanics and gas exchange. The aim of this study was to compare the effectiveness of hyperoxygenation with FIO2 + 0.20 above baseline and hyperoxygenation with FIO2 1.0 in preventing hypoxemia, and to determine the impact of open endotracheal suctioning on the pulmonary ventilation of critical subjects receiving mechanical ventilatory support...
January 2017: Respiratory Care
https://www.readbyqxmd.com/read/28003556/a-comparison-of-different-techniques-for-interfacing-capnography-with-adult-and-pediatric-supplemental-oxygen-masks
#11
Justin S Phillips, Lance P Pangilinan, Earl R E Mangalindan, Joseph L Booze, Richard H Kallet
BACKGROUND: Accurately measuring the partial pressure of end-tidal CO2 (PETCO2 ) in non-intubated patients is problematic due to dilution of expired CO2 at high O2 flows and mask designs that may either cause CO2 rebreathing or inadequately capture expired CO2. We evaluated the performance of 2 capnographic O2 masks (Cap-ONE and OxyMask) against a clinically expedient method using a standard O2 mask with a flow-directed nasal cannula used for capnography (CapnoLine) in a spontaneous breathing model of an adult and child under conditions of normal ventilation, hypoventilation, and hyperventilation...
January 2017: Respiratory Care
https://www.readbyqxmd.com/read/28003555/redesign-of-an-open-system-oxygen-face-mask-with-mainstream-capnometer-for-children
#12
Natalie Napolitano, Akira Nishisaki, Hayley S Buffman, Jessica Leffelman, Matthew R Maltese, Vinay M Nadkarni
BACKGROUND: Partial pressure of end-tidal carbon dioxide (PETCO2 ) monitoring in children is important to detect apnea or hypopnea early to intervene before hypoxemia develops. Monitoring PETCO2 in children without a tracheal tube is challenging. To improve PETCO2 measurement accuracy in a commercially available mask with a mainstream CO2 detector, we implemented design changes with deform-and-hold shaping technology and anterior-posterior adjustment of the expiratory gas flow cup. METHODS: Two sizes of redesigned face masks (small for 7-20 kg, medium for 10-40 kg) were evaluated...
January 2017: Respiratory Care
https://www.readbyqxmd.com/read/27997805/physiologic-effects-of-high-flow-nasal-cannula-in-acute-hypoxemic-respiratory-failure
#13
Tommaso Mauri, Cecilia Turrini, Nilde Eronia, Giacomo Grasselli, Carlo Alberto Volta, Giacomo Bellani, Antonio Pesenti
RATIONALE: High-flow nasal cannula (HFNC) improves the clinical outcomes of non-intubated acute hypoxemic respiratory failure (AHRF) patients. OBJECTIVES: To assess the effects of HFNC on gas exchange, inspiratory effort, minute ventilation, end-expiratory lung volume, dynamic compliance and ventilation homogeneity in AHRF patients. METHODS: This was a prospective randomized cross-over study in non-intubated AHRF patients with PaO2/setFiO2 ≤300 mmHg admitted to the Intensive Care Unit...
December 20, 2016: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/27993294/the-effect-of-habitual-waterpipe-tobacco-smoking-on-pulmonary-function-and-exercise-capacity-in-young-healthy-males-a-pilot-study
#14
F I Hawari, N A Obeidat, I M Ghonimat, H S Ayub, S S Dawahreh
BACKGROUND: Evidence regarding the health effects of habitual waterpipe smoking is limited, particularly in young smokers. Respiratory health and cardiopulmonary exercise tests were compared in young male habitual waterpipe smokers (WPS) versus non-smokers. METHODS: 69 WPS (≥3 times/week for three years) and 69 non-smokers were studied. Respiratory health was assessed through the American Thoracic Society and the Division of Lung Diseases (ATS-DLD-78) adult questionnaire...
January 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/27986366/end-tidal-co2-relates-to-seasickness-susceptibility-a-study-in-antarctic-voyages
#15
Tatsuhisa Hasegawa, Hirofumi Oe, Masakatsu Taki, Hirofumi Sakaguchi, Shigeru Hirano, Yoshiro Wada
OBJECTIVE: To investigate the relationship between end-tidal CO2 (EtCO2) and seasickness (motion sickness at sea) during an Antarctic voyage. METHODS: In this study, we measured EtCO2 and severity of seasickness using the subjective symptoms of motion sickness (SSMS). We sampled EtCO2 and SSMS every 3-4h for 3 days from the date of sail in 16 healthy subjects. This experiment was performed on an icebreaker (standard displacement: 12,650t). RESULTS: Since 2 subjects dropped out because of severe motion sickness, available data were collected from 14 subjects...
December 13, 2016: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/27976450/studying-the-safety-and-performance-of-rapid-sequence-intubation-data-collection-method-matters
#16
Andrea S Rinderknecht, Jenna R Dyas, Benjamin T Kerrey, Gary L Geis, Mona H Ho, Matthew R Mittiga
OBJECTIVE: We sought to describe and compare chart and video review as data collection sources for the study of Emergency Department (ED) Rapid Sequence Intubation (RSI). METHODS: This retrospective cohort study compares the availability and content of key RSI outcome and process data from two sources: chart and video data from 12 months of pediatric ED RSI. Key outcomes included adverse effects (oxyhemoglobin desaturation, physiologic changes, inadequate paralysis, vomiting), process components (number of laryngoscopy attempts, end-tidal CO2 detection), and timing data (duration of pre-oxygenation and laryngoscopy attempts)...
December 15, 2016: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/27966284/increased-ventilatory-response-to-exercise-in-symptomatic-and-asymptomatic-lmna-mutation-carriers-a-follow-up-study
#17
Laura Ollila, Tiina Heliö, Anssi Sovijärvi, Mikko Jalanko, Maija Kaartinen, Johanna Kuusisto, Satu Kärkkäinen, Raija Jurkko, Eeva Reissell, Eeva Palojoki, Päivi Piirilä
BACKGROUND: LMNA mutations are an important cause of cardiomyopathy often leading to cardiac arrhythmias, heart failure and even heart transplantation. An increasing number of asymptomatic mutation carriers are identified, as family members of the index patients are screened. Our aim was to study the disease progression in asymptomatic LMNA mutation carriers and in patients with symptomatic cardiolaminopathy by repeated spiroergometric testing in a prospective clinical follow-up study...
January 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/27960095/low-pre-treatment-end-tidal-co2-predicts-dropout-from-cognitive-behavioral-therapy-for-anxiety-and-related-disorders
#18
David F Tolin, Amber L Billingsley, Lauren S Hallion, Gretchen J Diefenbach
Recent clinical trial research suggests that baseline low end-tidal CO2 (ETCO2, the biological marker of hyperventilation) may predict poorer response to cognitive-behavioral therapy (CBT) for anxiety-related disorders. The present study examined the predictive value of baseline ETCO2 among patients treated for such disorders in a naturalistic clinical setting. Sixty-nine adults with a primary diagnosis of a DSM-5 anxiety disorder, obsessive-compulsive disorder, or posttraumatic stress disorder completed a 4-min assessment of resting ETCO2, and respiration rate (the first minute was analyzed)...
December 8, 2016: Behaviour Research and Therapy
https://www.readbyqxmd.com/read/27939108/a-randomized-controlled-trial-of-end-tidal-carbon-dioxide-detection-of-preterm-infants-in-the-delivery-room
#19
Gavin A Hawkes, Daragh Finn, Mmoloki Kenosi, Vicki Livingstone, John M O'Toole, Geraldine B Boylan, Ken D O'Halloran, Anthony C Ryan, Eugene M Dempsey
OBJECTIVE: To compare the ability of qualitative versus quantitative methods of end-tidal carbon dioxide (EtCO2) detection to maintain normocarbia during face mask ventilation (FMV) of preterm infants (<32 weeks) in the delivery room. STUDY DESIGN: Preterm infants <32 weeks were randomly assigned to the use of a disposable PediCap EtCO2 detector (Covidien, Dublin, Ireland) (qualitative) or a Microstream side stream capnography device (Covidien) (quantitative) for FMV in the delivery room, via a NeoPuff T-piece resuscitator (Fisher and Paykel, Auckland, New Zealand)...
December 9, 2016: Journal of Pediatrics
https://www.readbyqxmd.com/read/27933398/ecmo-for-intractable-status-asthmaticus-following-atracurium
#20
Vittorio Scaravilli, Giacomo Grasselli, Annalisa Benini, Michela Bombino, Daniele Ceriani, Uta Emmig, Alberto Zanella, Nicolò Patroniti, Antonio Pesenti
Intraoperative allergic reactions are rare but serious events associated with increased morbidity and mortality. We report the salvage of intraoperative anaphylaxis leading to extreme hypercapnic respiratory failure by veno-venous extracorporeal membrane oxygenation (ECMO). A 38-year-old woman undergoing thyroidectomy developed intractable bronchospasm after administration of atracurium, leading to extreme hypercapnic respiratory failure (PaCO2 > 250 mmHg, pH 6.773). After the failure of conventional medical therapy and ventilatory optimization, the patient was connected to a veno-venous ECMO circuit...
December 8, 2016: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
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