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"End tidal CO2"

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https://www.readbyqxmd.com/read/29320309/isocapnic-buffering-phase-a-useful-indicator-of-exercise-endurance-and-prognosis-in-patients-with-coronary-artery-disease
#1
Yun-Shan Yen, Daniel Chiung Jui Su, Kuo-Shu Yuan, Po-Wei Chen, Julie Chi Chow, Willy Chou
OBJECTIVES: The significance of the isocapnic buffering (IB) phase - the period between the first ventilatory threshold (1stVT) and respiratory compensation point (RCP) - has not been adequately established in patients. This study aimed to determine the clinical significance of the IB phase in coronary artery disease (CAD) patients. METHODS: This retrospective study included data of sixty-two CAD patients after coronary artery bypass graft (CABG) or percutaneous coronary intervention (PCI) performed in a single medical center between 2010-2014...
January 10, 2018: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/29261563/pediatric-in-hospital-cardiac-arrest-secondary-to-acute-pulmonary-embolism
#2
Ryan W Morgan, Hannah R Stinson, Heather Wolfe, Robert B Lindell, Alexis A Topjian, Vinay M Nadkarni, Robert M Sutton, Robert A Berg, Todd J Kilbaugh
OBJECTIVES: Pulmonary embolism is a rarely reported and potentially treatable cause of cardiac arrest in children and adolescents. The objective of this case series is to describe the course of five adolescent patients with in-hospital cardiac arrest secondary to pulmonary embolism. DESIGN: Case series. SETTING: Single, large academic children's hospital. PATIENTS: All patients under the age of 18 years (n = 5) who experienced an in-hospital cardiac arrest due to apparent pulmonary embolism from August 1, 2013, to July 31, 2017...
December 19, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/29239696/compression-garments-and-cerebral-blood-flow-influence-on-cognitive-and-exercise-performance
#3
Brittany A Smale, Joseph M Northey, Disa J Smee, Nathan G Versey, Ben Rattray
This study aimed to describe the effect of compression garments on middle cerebral artery blood flow velocity (MCAv) in relation to cognitive and exercise performance whilst cycling. In a randomised-controlled-cross-over design, 15 well-trained male cyclists were recruited to participate in three identical trials wearing loose fitting shorts (control), low-grade, or medium-grade compression garments. The protocol involved four 8 min increments of cycling at 30%, 50%, 70%, and 85% maximal power output and a 4 km time-trial...
December 14, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/29210902/insufflation-with-carbon-dioxide-during-pediatric-colonoscopy-for-control-of-postprocedure-pain
#4
Chad Thornhill, Fernando Navarro, Baraa Alabd Alrazzak, S Shahrukh Hashmi, Ashish N DebRoy, Jon M Rhoads, Essam Imseis
GOALS: To determine if carbon dioxide (CO2) insufflation in children would improve postprocedure pain following colonoscopy in children. BACKGROUND: CO2 insufflation during colonoscopy has been found to reduce postcolonoscopy pain in the adult population, but limited data exist in pediatrics. MATERIALS AND METHODS: We conducted a prospective study with 40 pediatric patients scheduled for outpatient colonoscopy. Patients were enrolled continuously and were randomized to receive CO2 or air insufflation...
November 28, 2017: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/29190801/comparison-between-manual-and-mechanical-chest-compressions-during-resuscitation-in-a-pediatric-animal-model-of-asphyxial-cardiac-arrest
#5
COMPARATIVE STUDY
Jorge López, Sarah N Fernández, Rafael González, María J Solana, Javier Urbano, Blanca Toledo, Jesús López-Herce
AIMS: Chest compressions (CC) during cardiopulmonary resuscitation are not sufficiently effective in many circumstances. Mechanical CC could be more effective than manual CC, but there are no studies comparing both techniques in children. The objective of this study was to compare the effectiveness of manual and mechanical chest compressions with Thumper device in a pediatric cardiac arrest animal model. MATERIAL AND METHODS: An experimental model of asphyxial cardiac arrest (CA) in 50 piglets (mean weight 9...
2017: PloS One
https://www.readbyqxmd.com/read/29189669/measurement-of-dead-space-fraction-upon-icu-admission-predicts-length-of-stay-and-clinical-outcomes-following-bidirectional-cavopulmonary-anastomosis
#6
Claire L Cigarroa, Sarah J van den Bosch, Xiaoqi Tang, Kimberlee Gauvreau, Christopher W Baird, James A DiNardo, John Nagi Kheir
OBJECTIVES: Increased alveolar dead space fraction has been associated with prolonged mechanical ventilation and increased mortality in pediatric patients with respiratory failure. The association of alveolar dead space fraction with clinical outcomes in patients undergoing bidirectional cavopulmonary anastomosis for single ventricle congenital heart disease has not been reported. We describe an association of alveolar dead space fraction with postoperative outcomes in patients undergoing bidirectional cavopulmonary anastomosis...
January 2018: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/29187557/the-assessment-of-neurovascular-coupling-with-the-addenbrooke-s-cognitive-examination-a-functional-transcranial-doppler-ultrasonographic-study
#7
Lucy C Beishon, Claire A L Williams, Ronney B Panerai, Thompson G Robinson, Victoria Joanna Haunton
Cerebrovascular dysfunction occurs early in dementia and can be identified by Transcranial Doppler ultrasonography (TCD). Few studies have examined cerebral blood flow velocity (CBFv) responses to a detailed cognitive battery. This study aimed to characterise all CBFv responses, and the effect of hemispheric dominance, to the Addenbrooke's Cognitive Examination (ACE-III) in healthy volunteers. Forty volunteers underwent continuous bilateral TCD, beat-to-beat blood pressure (MAP) (Finapres), heart rate (HR) (electrocardiogram), and end-tidal CO2 (ETCO2) (capnography) monitoring...
November 29, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/29181255/development-of-a-screening-protocol-to-identify-individuals-with-dysfunctional-breathing
#8
Kyle Kiesel, Tonya Rhodes, Jacob Mueller, Alyssa Waninger, Robert Butler
Introduction: Dysfunctional breathing (DB) has been linked to health conditions including low back pain and neck pain and adversely effects the musculoskeletal system. Individuals with DB often have decreased pain thresholds and impaired motor control, balance, and movement. No single test or screen identifies DB, which is multi-dimensional, and includes biochemical, biomechanical, and psychophysiological components. Several tools assess and test for DB, but no screen exists to determine whether additional testing and assessment are indicated...
October 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/29171661/a-randomised-controlled-trial-comparing-high-flow-nasal-oxygen-with-standard-management-for-conscious-sedation-during-bronchoscopy
#9
N Douglas, I Ng, F Nazeem, K Lee, P Mezzavia, R Krieser, D Steinfort, L Irving, R Segal
Traditional conscious sedation for endobronchial ultrasound procedures places patients at risk of desaturation, and high-flow nasal oxygen may reduce the risk. We designed a parallel-group randomised controlled trial of high-flow nasal oxygen at a flow rate of 30-70 l.min(-1) via nasal cannulae, compared with standard oxygen therapy at 10 l.min(-1) via a bite block in adults planned for conscious sedation for endobronchial ultrasound. The primary outcome was the proportion of patients experiencing desaturation (defined as SpO2 < 90%)...
November 24, 2017: Anaesthesia
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/29126709/corrigendum-to-mapping-the-end-tidal-co2-response-function-in-the-resting-state-bold-fmri-signal-spatial-specificity-test-retest-reliability-and-effect-of-fmri-sampling-rate
#11
A M Golestani, C Chang, J B Kwinta, Y B Khatamian, J J Chen
No abstract text is available yet for this article.
November 7, 2017: NeuroImage
https://www.readbyqxmd.com/read/29123389/alveolar-capillary-reserve-during-exercise-in-patients-with-chronic-obstructive-pulmonary-disease
#12
Mehrdad Behnia, Courtney M Wheatley, Alberto Avolio, Bruce D Johnson
Background: Factors limiting exercise in patients with COPD are complex. With evidence for accelerated pulmonary vascular aging, destruction of alveolar-capillary bed, and hypoxic pulmonary vasoconstriction, the ability to functionally expand surface area during exercise may become a primary limitation. Purpose: To quantify measures of alveolar-capillary recruitment during exercise and the relationship to exercise capacity in a cohort of COPD patients. Methods: Thirty-two subjects gave consent (53% male, with mean ± standard deviation age 66±9 years, smoking 35±29 pack-years, and Global Initiative for Chronic Obstructive Lung Disease (GOLD) classification of 0-4: 2...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29103148/cerebrovascular-co2-reactivity-during-isoflurane-nitrous-oxide-anesthesia-in-patients-with-chronic-renal-failure
#13
Kazuyoshi Ishida, Masato Uchida, Kohji Utada, Atsuo Yamashita, Satoshi Yamashita, Shiro Fukuda, Mishiya Matsumoto, Takefumi Sakabe
PURPOSE: We assessed the cerebrovascular CO2 reactivity (CO2R) in chronic renal failure (CRF) patients without diabetes mellitus (DM), uncontrolled hypertension, peripheral vascular disease, or neurological disease under isoflurane-nitrous oxide anesthesia. METHODS: Forty-nine patients undergoing surgery, including 36 CRF patients (30 receiving dialysis and six pre-dialysis patients) and 13 patients without CRF (controls). Middle cerebral artery flow velocity (VMCA) was measured by transcranial Doppler ultrasonography at an end-tidal CO2 of 35 to 45 mmHg...
November 4, 2017: Journal of Anesthesia
https://www.readbyqxmd.com/read/29082571/the-role-of-peripheral-vasopressin-1a-and-oxytocin-receptors-on-the-subcutaneous-vasopressin-antinociceptive-effects
#14
A Manzano-García, A González-Hernández, I A Tello-García, G Martínez-Lorenzana, M Condés-Lara
BACKGROUND: Vasopressin (AVP) seems to play a role as an antinociceptive neurohormone, but little is known about the peripheral site of action of its antinociceptive effects. Moreover, AVP can produce motor impairment that could be confused with behavioural antinociception. Finally, it is not clear which receptor is involved in the peripheral antinociceptive AVP effects. METHODS: In anaesthetized rats with end-tidal CO2 monitoring, extracellular unitary recordings were performed, measuring the evoked activity mediated by Aβ-, Aδ-, C-fibres and post-discharge...
October 30, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/29077178/ocular-blood-flow-in-steep-trendelenburg-positioning-during-robotic-assisted-radical-prostatectomy
#15
Christian L Demasi, Francesco Porpiglia, Augusto Tempia, Savino D'Amelio
PURPOSE: Several ischemic optic neuropathies that occurred during robotic-assisted laparoscopic radical prostatectomy (RALRP) have been reported to be due to the Trendelenburg position, which lowers ocular perfusion pressure (OPP). We examined changes in pulsatile ocular blood flow (POBF) and its correlation with OPP during RALRP in the steep Trendelenburg position. METHODS: Pulsatile ocular blood flow and intraocular pressure (IOP) were measured in 50 patients by the OBF Langham System 5 times during RALRP...
October 25, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/29076947/left-versus-biventricular-assist-devices-in-cardiac-arrest
#16
Erik J S Packer, Grete Slettom, Atle Solholm, Arve Mongstad, Rune Haaverstad, Vegard Tuseth, Ketil Grong, Jan Erik Nordrehaug
Maintaining adequate organ perfusion during cardiac arrest remains a challenge, and various assist techniques have been evaluated. We assessed whether a right ventricular impeller assist device (RVAD) in adjunct to a left ventricular impeller assist device (LVAD) is beneficial. Twenty anesthetized pigs were randomized to maximized circulatory support by percutaneously implanted left- or biventricular assist device(s) during 30 minutes of electrically induced ventricular fibrillation followed by three attempts of cardioversion...
October 20, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29069009/oxygen-embolism-caused-by-accidental-subcutaneous-injection-of-hydrogen-peroxide-during-orthopedic-surgery-a-case-report
#17
Jinhun Chung, Minyoung Jeong
INTRODUCTION: We report a 39-year-old male patient with a fracture of the right acetabulum undergoing open reduction and internal fixation with a plate under general anesthesia. At closure, the surgeons injected 0.75% ropivacaine into the subcutaneous tissue of the incision wound for postoperative analgesia. Soon after injection, subcutaneous emphysema at the injection site and a sudden decrease in end-tidal CO2 tension with crude oscillatory ripples during the alveolar plateau phase were observed...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29065963/neurodevelopmental-outcomes-at-two-years-of-age-for-premature-infants-diagnosed-with-neonatal-obstructive-sleep-apnea
#18
Anuja Bandyopadhyay, Heidi Harmon, James E Slaven, Ameet S Daftary
STUDY OBJECTIVES: Neurocognitive deficits have been shown in school-aged children with sleep apnea. The effect of obstructive sleep apnea (OSA) on the neurodevelopmental outcome of preterm infants is unknown. METHODS: A retrospective chart review was performed for all preterm infants (< 37 weeks) who had neonatal polysomnography (PSG) and completed neurodevelopmental assessment with the Bayley Scales of Infant and Toddler Development, 3rd Edition, between 2006 to 2015 at Riley Hospital...
November 15, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/29060706/development-of-respiratory-function-monitor-for-neonates
#19
Fumihiko Takatori, Shinichiro Inoue, Satoru Togo, Shinji Yamamori
Approximately, 10 million babies do not breathe immediately at birth and some of them require positive pressure ventilation. However, inappropriate and excessive tidal volume delivery could lead to lung injury in neonatal patients. We developed a respiratory function monitor which can monitor mask leak, expiratory tidal volume, respiratory rate, peak inspiratory pressure, and end-tidal CO2 on a real-time basis. A neonatal flow sensor was specially designed and was integrated with a small mainstream capnometer, cap-ONE...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29059881/statistical-analysis-of-the-age-dependence-of-the-normal-capnogram
#20
Rebecca J Mieloszyk, Baruch S Krauss, Diana Montagu, Gary Andolfatto, Egidio Barbi, George C Verghese, Thomas Heldt
The age dependence of the time-based capnogram from normal, healthy subjects has not been quantitatively characterized. The existence of age dependence would impact the development and operation of automated quantitative capnographic tools. Here, we quantitatively assess the relationship between normal capnogram shape and age. Capnograms were collected from healthy subjects, and physiologically-based features (exhalation duration, end-tidal CO2 and time spent at this value, normalized time spent at end-tidal CO2, end-exhalation slope, and instantaneous respiratory rate) were computationally extracted...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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