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End-tidal carbon dioxide

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https://www.readbyqxmd.com/read/29321118/a-comparison-of-carotid-doppler-ultrasonography-and-capnography-in-evaluating-the-efficacy-of-cardiopulmonary-resuscitation-the-first-study
#1
Gökhan Yilmaz, Mustafa Silcan, Süha Serin, Bahadır Caglar, Özkan Erarslan, İsmet Parlak
INTRODUCTION AND PURPOSE: The end-tidal carbon dioxide (ETCO2) measurement is accepted as the gold standard method for assessing cardiopulmonary resuscitation (CPR) efficacy. In recent studies, the use of Carotid Doppler Ultrasonography has become widespread in showing CPR efficacy. In the present study, the carotid blood flow measurement was compared with ETCO2 measurement and an evaluation was made of whether this method could be used as an alternative method to capnography in the assessment of CPR efficacy...
January 6, 2018: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29296053/nonfatal-pulmonary-embolism-associated-with-the-use-of-compression-stockings-in-the-lithotomy-position-after-spinal-anesthesia
#2
I-Wen Chen, Cheuk-Kwan Sun, Jen-Yin Chen, Chien-Ming Lin, Kuo-Chuan Hung
A 73-year-old male (height, 156 cm; body weight, 51 kg), without a history of cardiovascular disease or thromboembolic events, was scheduled for transurethral resection of the prostate under spinal anesthesia. Spinal anesthesia was administered with hyperbaric bupivacaine, resulting in an upper anesthetic level of T6. Before surgery, compression stockings were applied to both lower limbs, and the patient was placed in the lithotomy position. Approximately 15 min later, he complained of intolerable chest tightness, followed by tachycardia (heart rate, 110 beats/min) and desaturation (oxygen saturation [SaO2], 90%)...
October 2017: Ci Ji Yi Xue za Zhi, Tzu-chi Medical Journal
https://www.readbyqxmd.com/read/29221302/the-society-for-translational-medicine-clinical-practice-guidelines-for-mechanical-ventilation-management-for-patients-undergoing-lobectomy
#3
REVIEW
Shugeng Gao, Zhongheng Zhang, Alessandro Brunelli, Chang Chen, Chun Chen, Gang Chen, Haiquan Chen, Jin-Shing Chen, Stephen Cassivi, Ying Chai, John B Downs, Wentao Fang, Xiangning Fu, Martínez I Garutti, Jianxing He, Jie He, Jian Hu, Yunchao Huang, Gening Jiang, Hongjing Jiang, Zhongmin Jiang, Danqing Li, Gaofeng Li, Hui Li, Qiang Li, Xiaofei Li, Yin Li, Zhijun Li, Chia-Chuan Liu, Deruo Liu, Lunxu Liu, Yongyi Liu, Haitao Ma, Weimin Mao, Yousheng Mao, Juwei Mou, Calvin Sze Hang Ng, René H Petersen, Guibin Qiao, Gaetano Rocco, Erico Ruffini, Lijie Tan, Qunyou Tan, Tang Tong, Haidong Wang, Qun Wang, Ruwen Wang, Shumin Wang, Deyao Xie, Qi Xue, Tao Xue, Lin Xu, Shidong Xu, Songtao Xu, Tiansheng Yan, Fenglei Yu, Zhentao Yu, Chunfang Zhang, Lanjun Zhang, Tao Zhang, Xun Zhang, Xiaojing Zhao, Xuewei Zhao, Xiuyi Zhi, Qinghua Zhou
Patients undergoing lobectomy are at significantly increased risk of lung injury. One-lung ventilation is the most commonly used technique to maintain ventilation and oxygenation during the operation. It is a challenge to choose an appropriate mechanical ventilation strategy to minimize the lung injury and other adverse clinical outcomes. In order to understand the available evidence, a systematic review was conducted including the following topics: (I) protective ventilation (PV); (II) mode of mechanical ventilation [e...
September 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29221300/comparison-of-continuous-compression-with-regular-ventilations-versus-30-2-compressions-ventilations-strategy-during-mechanical-cardiopulmonary-resuscitation-in-a-porcine-model-of-cardiac-arrest
#4
Zhengfei Yang, Qingyu Liu, Guanghui Zheng, Zhifeng Liu, Longyuan Jiang, Qing Lin, Rui Chen, Wanchun Tang
Background: A compression-ventilation (C:V) ratio of 30:2 is recommended for adult cardiopulmonary resuscitation (CPR) by the current American Heart Association (AHA) guidelines. However, continuous chest compression (CCC) is an alternative strategy for CPR that minimizes interruption especially when an advanced airway exists. In this study, we investigated the effects of 30:2 mechanical CPR when compared with CCC in combination with regular ventilation in a porcine model. Methods: Sixteen male domestic pigs weighing 39±2 kg were utilized...
September 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29217394/the-use-of-end-tidal-carbon-dioxide-etco2-measurement-to-guide-management-of-cardiac-arrest-a-systematic-review
#5
REVIEW
Edison F Paiva, James H Paxton, Brian J O'Neil
AIMS: To identify whether any level of end-tidal carbon dioxide (ETCO2) measured during cardiopulmonary resuscitation (CPR) correlates with return of spontaneous circulation (ROSC) or survival in adults experiencing cardiac arrest in any setting. METHODS: Systematic review. We included randomized controlled trials, cohort studies, and case-control studies of adult cardiac arrest in any setting that reported specific (rather than pooled) ETCO2 values and attempted to correlate those values with prognosis...
December 4, 2017: Resuscitation
https://www.readbyqxmd.com/read/29213205/hypercapnic-ventilatory-response-in-the-weaning-of-patients-with-prolonged-mechanical-ventilation
#6
Chung-Shu Lee, Ning-Hung Chen, Li-Pang Chuang, Chih-Hao Chang, Li-Fu Li, Shih-Wei Lin, Hsiung-Ying Huang
Objective: To investigate whether hypercapnic ventilatory response (defined as the ratio of the change in minute ventilation [[Formula: see text]] to the change in end-tidal partial pressure of carbon dioxide [ΔPETCO2 ]) is a predictor of successful weaning in patients with prolonged mechanical ventilation (PMV) and to determine a reference value for clinical use. Methods: A hypercapnic challenge test was performed on 32 PMV subjects (average age: 74.3 years ± 14...
2017: Canadian Respiratory Journal: Journal of the Canadian Thoracic Society
https://www.readbyqxmd.com/read/29212807/the-independent-and-interactive-effects-of-incremental-heat-strain-orthostatic-stress-and-mild-hypohydration-on-cerebral-perfusion
#7
Rebekah A I Lucas, Luke C Wilson, Philip N Ainslie, Jui-Lin Fan, Kate N Thomas, James D Cotter
The purpose of this study was to identify the dose-dependent effects of heat strain and orthostasis (via lower-body negative pressure; LBNP), with and without mild hypohydration, on systemic function and cerebral perfusion. Eleven males (Mean ±SD: 27 ±7 y; body mass 77 ±6 kg), resting supine in a water-perfused suit, underwent progressive passive heating [0.5°C increments in core temperature (Tc, oesophageal to +2.0°C)] whilst euhydrated (EUH) or hypohydrated (HYPO, 1.5-2% body mass deficit). At each thermal state, mean cerebral artery blood velocity (MCAvmean, Transcranial Doppler), partial pressure of end-tidal carbon dioxide (PETCO2), heart rate (HR) and mean arterial blood pressure (MAP, photoplethysmography) were measured continuously during LBNP (0, -15, -30, -45 mm Hg)...
December 6, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/29210902/insufflation-with-carbon-dioxide-during-pediatric-colonoscopy-for-control-of-postprocedure-pain
#8
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/29200828/fentanyl-induced-respiratory-depression-is-attenuated-in-pregnant-patients
#9
Xiaofei Cao, Shijiang Liu, Jie Sun, Min Yu, Yin Fang, Zhengnian Ding
Background: Respiratory depression is a complication of intravenous fentanyl administration. The effect of pregnancy on respiratory depression following opioid administration is unclear. This study investigated the effect of pregnancy on fentanyl-induced respiratory depression. Patients and methods: Female patients were divided into three groups (n=20 per group): control group (non-pregnant and scheduled for laparoscopic surgery), early pregnancy group (pregnant for 45-60 days and scheduled for abortion), and postpartum group (5-7 days postpartum scheduled for complete curettage of uterine cavity)...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/29200061/respiratory-gas-analysis-technical-aspects
#10
Michael B Jaffe
A technology-focused review of respiratory gas analysis, with an emphasis on carbon dioxide analysis, is presented. The measurement technologies deployed commercially are highlighted, and the basic principles and technical concerns of infrared spectroscopy and mainstream versus sidestream gas sampling are discussed. The specifications of particular interest to the clinician, accuracy and response time, and the related standard, with typical values for a capnometer, are presented. Representative time and volumetric capnograms are shown with the clinically relevant parameters described...
November 30, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29181526/cortical-structures-associated-with-human-blood-pressure-control
#11
Nuria Lacuey, Johnson P Hampson, Wanchat Theeranaew, Bilal Zonjy, Ajay Vithala, Norma J Hupp, Kenneth A Loparo, Jonathan P Miller, Samden D Lhatoo
Importance: A better understanding of the role of cortical structures in blood pressure control may help us understand cardiovascular collapse that may lead to sudden unexpected death in epilepsy (SUDEP). Objective: To identify cortical control sites for human blood pressure regulation. Design, Setting, and Participants: Patients with intractable epilepsy undergoing intracranial electrode implantation as a prelude to epilepsy surgery in the Epilepsy Monitoring Unit at University Hospitals Cleveland Medical Center were potential candidates for this study...
November 27, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/29179773/sustained-inflations-versus-uk-standard-inflations-during-initial-resuscitation-of-prematurely-born-infants-in-the-delivery-room-a-study-protocol-for-a-randomised-controlled-trial
#12
Katie A Hunt, Kamal Ali, Theodore Dassios, Anthony D Milner, Anne Greenough
BACKGROUND: Many infants born at less than 34 weeks of gestational age will require resuscitation in the delivery suite. Yet, different resuscitation techniques are specified in different national guidelines, likely reflecting a limited evidence base. One difference is the length of mechanical inflation initially delivered to infants either via a facemask or endotracheal tube. Some guidelines specify short inflations delivered at rates of 40-60/min, others recommend initial inflations lasting 2-3 s or sustained inflations lasting for ≥ 5 s for initial resuscitation...
November 28, 2017: Trials
https://www.readbyqxmd.com/read/29175355/an-assessment-of-ventilation-and-perfusion-markers-in-out-of-hospital-cardiac-arrest-patients-receiving-mechanical-cpr-with-endotracheal-or-supraglottic-airways
#13
Torben K Becker, Aric W Berning, Arjun Prabhu, Clifton W Callaway, Francis X Guyette, Christian Martin-Gill
AIM OF THE STUDY: Mechanical chest compression (MCPR) devices are considered equivalent to manual compressions in patient outcomes in out-of-hospital cardiac arrest (OHCA). However, recent data suggest possible harm in patients with a supraglottic airway device (SGA) during MCPR. The aim of this study was to evaluate differences in direct and indirect markers of ventilation and perfusion in patients with cardiac arrest receiving MCPR and who had their airway managed with an endotracheal tube (ETT) or SGA...
January 2018: Resuscitation
https://www.readbyqxmd.com/read/29174453/correlation-of-high-flow-nasal-cannula-outlet-area-with-gas-clearance-and-pressure-in-adult-upper-airway-replicas
#14
REVIEW
Charles P Moore, Ira M Katz, Georges Caillibotte, Warren H Finlay, Andrew R Martin
BACKGROUND: Primary benefits of high flow nasal cannula therapy include washout of carbon dioxide rich exhaled gas and increased airway pressures during tidal breathing. This work reports on the influence of high flow nasal cannula outlet area on upper airways gas clearance and tracheal pressures using measurements in five realistic adult nose-throat airway replicas. METHODS: Two commercial high flow nasal cannulas and one generic nasal cannula of varying size were compared...
November 11, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/29169839/cardiopulmonary-effects-of-anaesthesia-maintained-by-propofol-infusion-versus-isoflurane-inhalation-in-cheetahs-acinonyx-jubatus
#15
Roxanne K Buck, Adrian Sw Tordiffe, Gareth E Zeiler
OBJECTIVE: To compare the cardiopulmonary effects of propofol total intravenous anaesthesia (TIVA) with isoflurane in cheetahs (Acinonyx jubatus) to evaluate feasibility for field use. STUDY DESIGN: Prospective clinical study. ANIMALS: A group of 24 adult cheetahs, 12 per group. METHODS: Cheetahs were immobilized with zolazepam/tiletamine (1.2 mg kg-1) and medetomidine [40 μg kg-1, both intramuscular (IM)] by darting...
June 23, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/29146451/effect-of-rate-of-administration-of-propofol-or-alfaxalone-on-induction-dose-requirements-and-occurrence-of-apnea-in-dogs
#16
Sarah E Bigby, Thierry Beths, Sébastien Bauquier, Jennifer E Carter
OBJECTIVE: To evaluate the effect of rate of administration of propofol or alfaxalone on induction dose requirements and incidence of postinduction apnea (PIA) in dogs following premedication with methadone and dexmedetomidine. STUDY DESIGN: Prospective, randomized clinical trial. ANIMALS: Thirty-two healthy American Society of Anesthesiologists class I client-owned dogs (seven females, 25 males), aged between 5 and 54 months, weighing between 2...
May 2, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/29140968/end-tidal-carbon-dioxide-use-for-tracheal-intubation-analysis-from-the-national-emergency-airway-registry-for-children-near4kids-registry
#17
Melissa L Langhan, Beth L Emerson, Sholeen Nett, Matthew Pinto, Ilana Harwayne-Gidansky, Kyle J Rehder, Conrad Krawiec, Keith Meyer, John S Giuliano, Erin B Owen, Keiko M Tarquinio, Ron C Sanders, Michael Shepherd, Gokul Kris Bysani, Asha N Shenoi, Natalie Napolitano, Sandeep Gangadharan, Simon J Parsons, Dennis W Simon, Vinay M Nadkarni, Akira Nishisaki
OBJECTIVE: Waveform capnography use has been incorporated into guidelines for the confirmation of tracheal intubation. We aim to describe the trend in waveform capnography use in emergency departments and PICUs and assess the association between waveform capnography use and adverse tracheal intubation-associated events. DESIGN: A multicenter retrospective cohort study. SETTING: Thirty-four hospitals (34 ICUs and nine emergency departments) in the National Emergency Airway Registry for Children quality improvement initiative...
November 14, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/29132458/-efficacy-of-analgesic-and-sedative-treatments-in-children-with-mechanical-ventilation-in-the-pediatric-intensive-care-unit
#18
Xiao-Fang Cai, Fu-Rong Zhang, Long Zhang, Ji-Min Sun, Wen-Bin Li
OBJECTIVE: To compare the efficacy and safety of different analgesic and sedative treatments in children with mechanical ventilation in the pediatric intensive care unit (PICU). METHODS: Eighty children with mechanical ventilation in the PICU who needed analgesic and sedative treatments were equally and randomly divided into midazolam group and remifentanil+midazolam group. The sedative and analgesic effects were assessed using the Ramsay Scale and the Face, Legs, Activity, Cry and Consolability (FLACC) Scale...
November 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/29125380/breathing-pattern-recordings-using-respiratory-inductive-plethysmography-before-and-after-a-physiotherapy-breathing-retraining-program-for-asthma-a-case-report
#19
Rokhsaneh Tehrany, Ruth DeVos, Anne Bruton
Breathing retraining (BR) improves symptoms, psychological well-being and quality of life in adults with asthma; but there remains uncertainty as to mechanism of effect. One of the intuitively logical theories is that BR works through altering breathing pattern. There is currently no evidence, however, that BR does result in measurable changes in breathing pattern. In this case report we describe the effects of physiotherapy BR on a 57-year-old female with a 10-year history of asthma. Data were collected before and after a physiotherapy BR program comprising three sessions over 18 weeks: breathing pattern (respiratory inductive plethysmography (RIP); physiology (end tidal carbon dioxide (ETCO2), heart rate, oxygen saturations, spirometric lung function); questionnaires (Asthma Control Questionnaire (ACQ), Hospital Anxiety and Depression Score, Nijmegen Questionnaire); and medication usage...
November 10, 2017: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/29110581/outcomes-of-drug-induced-sleep-endoscopy-directed-surgery-for-pediatric-obstructive-sleep-apnea
#20
Shan He, Nithin S Peddireddy, David F Smith, Angela L Duggins, Christine Heubi, Sally R Shott, Stacey L Ishman
Objectives To determine the effectiveness of pediatric drug-induced sleep endoscopy (DISE)-directed surgery for children with infant obstructive sleep apnea (OSA) or OSA after adenotonsillectomy. Study Design Case series with chart review. Setting Tertiary care pediatric hospital. Subjects and Methods We included 56 children undergoing DISE from October 2013 to September 2015 who underwent subsequent surgery to address OSA. The primary outcome was successful response to DISE-directed surgery based on the postoperative obstructive Apnea-Hypopnea Index (oAHI)...
November 1, 2017: Otolaryngology—Head and Neck Surgery
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