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https://www.readbyqxmd.com/read/29346577/improved-success-rate-of-arterial-puncture-for-blood-gas-analysis-through-standardization
#1
Phillip R Jensen, Boaz A Markewitz
Background: Arterial puncture for blood gas analysis is a common procedure in hospitals. The aim of the study is to determine if standardizing technique elements of the arterial puncture process could improve the success rate of technicians through the full scope of an academic medical center. Methods: The study is conducted by the Blood Gas Laboratory at University of Utah Health's main campus. During the baseline period, technicians tallied whether arterial puncture attempts were successful or unsuccessful from December 2014 through February 2015...
January 13, 2018: Laboratory Medicine
https://www.readbyqxmd.com/read/29346176/rapid-response-to-scan-or-not-to-scan-the-utility-of-noncontrast-ct-head-for-altered-mental-status
#2
Purujit J Thacker, Mansha Sethi, Jonathan Sternlieb, Doron Schneider, Mary Naglak, Rajeshkumar R Patel
OBJECTIVES: The aims of the study were the following: (1) to determine how often computed tomography (CT) scans of the head are obtained on rapid responses called for altered mental status (AMS), (2) to determine whether CT imaging of the head is required during all rapid responses called for AMS, (3) to determine which patients would benefit from CT scans of the head in this setting, (4) to note whether an adequate neurologic exam was documented, (5) to determine the cost of CT scans that did not change management, and (6) to examine the role of medications leading to AMS...
January 17, 2018: Journal of Patient Safety
https://www.readbyqxmd.com/read/29343950/examining-30-day-copd-readmissions-through-the-emergency-department
#3
Michael E Rezaee, Charlotte E Ward, Bonita Nuanez, Daniel A Rezaee, Jeffrey Ditkoff, Alexandra Halalau
Background: Thirty-day readmission in COPD is common and costly, but potentially preventable. The emergency department (ED) may be a setting for COPD readmission reduction efforts. Objective: To better understand COPD readmission through the ED, ascertain factors associated with 30-day readmission through the ED, and identify subgroups of patients with COPD for readmission reduction interventions. Patients and methods: A retrospective cohort study was conducted from January 2009 to September 2015 in patients with COPD of age ≥18 years...
2018: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29343034/-a-study-on-the-effects-and-safety-of-sequential-humidified-high-flow-nasal-cannula-oxygenation-therapy-on-the-copd-patients-after-extubation
#4
J C Zhang, F X Wu, L L Meng, C Y Zeng, Y Q Lu
Objective: To investigate and compare the effect and safety of nasal high-flow oxygen therapy (HFNCO) and noninvasive ventilation (NIV) therapy after extubation in patients with chronic obstructive pulmonary disease (COPD). Methods: All COPD patients subjected to mechanical ventilation in the Emergency Intensive Unit of the First Affiliated Hospital of Zhejiang University during January 2015 to June 2016 were included in the study. The patients were divided into two groups after extubation and HFNCO and NIV were adopted on each group respectively...
January 9, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29342854/impact-of-prolonged-blood-incubation-and-extended-serum-storage-at-room-temperature-on-the-human-serum-metabolome
#5
Beate Kamlage, Sebastian Neuber, Bianca Bethan, Sandra González Maldonado, Antje Wagner-Golbs, Erik Peter, Oliver Schmitz, Philipp Schatz
Metabolomics is a powerful technology with broad applications in life science that, like other -omics approaches, requires high-quality samples to achieve reliable results and ensure reproducibility. Therefore, along with quality assurance, methods to assess sample quality regarding pre-analytical confounders are urgently needed. In this study, we analyzed the response of the human serum metabolome to pre-analytical variations comprising prolonged blood incubation and extended serum storage at room temperature by using gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-tandem mass spectrometry (LC-MS/MS) -based metabolomics...
January 13, 2018: Metabolites
https://www.readbyqxmd.com/read/29342464/risk-factors-for-intraoperative-hypocapnia-in-pediatric-neurosurgical-patients-a-retrospective-cohort-study
#6
In-Kyung Song, Soolyoen Choi, Seohee Lee, Eun-Hee Kim, Ji-Hyun Lee, Hee-Soo Kim, Jin-Tae Kim
BACKGROUND: Hypocapnia has been associated with an increased risk and adverse outcomes in the injured brain. This study aimed to identify risk factors of intraoperative hypocapnia in pediatric neurosurgical patients when tidal volumes and respiratory rates were determined based on their weight and age, respectively. METHODS: Electronic medical records of pediatric patients (≤18 years) who underwent neurosurgery from December 2014 to January 2016 were retrospectively reviewed...
January 18, 2018: Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29339078/analytical-and-pre-analytical-performance-characteristics-of-a-novel-cartridge-type-blood-gas-analyzer-for-point-of-care-and-laboratory-testing
#7
Matthijs Oyaert, Tom Van Maerken, Silke Bridts, Silvi Van Loon, Heleen Laverge, Veronique Stove
BACKGROUND: Point-of-care blood gas test results may benefit therapeutic decision making by their immediate impact on patient care. We evaluated the (pre-)analytical performance of a novel cartridge-type blood gas analyzer, the GEM Premier 5000 (Werfen), for the determination of pH, partial carbon dioxide pressure (pCO2), partial oxygen pressure (pO2), sodium (Na+), potassium (K+), chloride (Cl-), ionized calcium (iCa2+), glucose, lactate, and total hemoglobin (tHb). METHODS: Total imprecision was estimated according to the CLSI EP5-A2 protocol...
January 12, 2018: Clinical Biochemistry
https://www.readbyqxmd.com/read/29337687/comparison-of-the-solid-phase-and-liquid-liquid-extraction-methods-for-methadone-determination-in-human-serum-and-whole-blood-samples-using-gas-chromatography-mass-spectrometry
#8
Maja Veršić Bratinčević, Tanja Visković, Davorka Sutlović
The aim of this study was to determine the optimal biological sample and the optimal extraction technique for monitoring methadone concentrations in biological samples. We analysed methadone in serum and whole blood samples using gas chromatography/mass spectrometry (GC/MS). Before analysis, we compared five solid-phase extraction (SPE) and two liquid-liquid extraction (LLE) methods and determined that SPE with Supelco LC-18 in serum yielded the best extraction efficiency. The limit of detection was 10 ng mL-1 and the limit of quantification 25 ng mL-1...
December 20, 2017: Arhiv za Higijenu Rada i Toksikologiju
https://www.readbyqxmd.com/read/29336990/failure-of-intracardiac-pacing-after-fatal-propafenone-overdose-a-case-report
#9
Ivan Zeljković, Nikola Bulj, Matea Kolačević, Vedran Čabrilo, Diana Delić Brkljačić, Šime Manola
BACKGROUND: Propafenone is a sodium-channel blocker, class IC antiarrhythmic drug, frequently used to manage supraventricular dysrhythmias, especially atrial fibrillation. We report a self mono-intoxication with propafenone. CASE REPORT: A 68-year-old woman presented with a decreased level of consciousness, hypotension, and electrocardiogram showing QRS widening with atrial asystole and extreme bradycardia < 20 beats/min. After initial stabilization with transcutaneous pacing, laboratory findings detected normal electrolyte ranges and metabolic acidosis, and her medical history revealed availability of propafenone due to paroxysmal atrial fibrillation and depressive syndrome, which led to the suspicion of intoxication...
January 11, 2018: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29330799/hypoxia-signaling-and-placental-adaptations
#10
Damayanti Chakraborty, Regan L Scott, Michael J Soares
Oxygen is an essential nutrient for cells. Oxygen is delivered to tissues via red blood cells through the vasculature. Molecular mechanisms mediating cellular responses to low oxygen tension have been identified. Hypoxia-inducible factors (HIFs) are activated by low oxygen and promote transcriptional regulation of downstream effector genes, which lead to cellular adaptations. Controlled hypoxia exposure is utilized as an experimental tool to investigate biological processes, regulating cellular adaptations...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29330687/evaluation-of-the-mitochondria-related-redox-and-bioenergetics-effects-of-gastrodin-in-sh-sy5y-cells-exposed-to-hydrogen-peroxide
#11
Marcos Roberto de Oliveira, Flávia Bittencourt Brasil, Cristina Ribas Fürstenau
Mitochondrion is the main site of ATP production in animal cells and also orchestrates signaling pathways associated with cell survival and death. Mitochondrial dysfunction has been linked to bioenergetics and redox impairment in human diseases, such as neurodegeneration and cardiovascular disease. Protective agents able to attenuate mitochondrial impairment are of pharmacological interest. Gastrodin (GAS; 4-hydroxybenzyl alcohol 4-O-beta-D-glucoside) is a phenolic glucoside obtained from the Chinese herbal medicine Gastrodia elata Blume and exhibits antioxidant, anti-inflammatory, and antiapoptotic effects in several cell types...
January 12, 2018: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/29330637/assessment-of-the-permeability-properties-of-cryopreservation-outer-bags-used-in-nhsbt
#12
P Hogg, P Rooney, R Lomas, J N Kearney
This study was carried out to investigate leakage/transport across the bag material of six outer cryopreservation bags in common use within NHS Blood and Transplant. In order to do this two different leak testing procedures; coloured dye and hydrogen tracer gas, were used. The data obtained show that a coloured dye cannot permeate through the materials both at room temperature and following storage at liquid nitrogen temperature (- 196 °C). In addition, when filled with the smallest elemental molecule, hydrogen, in the form of a tracer gas, all of the bags only allowed trace amounts of hydrogen to escape, either through the seal or the bag material...
January 12, 2018: Cell and Tissue Banking
https://www.readbyqxmd.com/read/29328031/metabolic-profile-of-serum-fatty-acids-in-patients-with-comorbidity-of-chro-nic-obstructive-pulmonary-disease-and-chronic-pancreatitis
#13
N Zhelezniakova, L Pasiyeshvili, T Bocharova, T Pasiieshvili, O Zhelezniakov
Objective - study of blood serum fatty acid metabolic profile in patients with comorbidity of COPD and chronic pancreatitis. 238 patients were examined, of them 131 with combined COPD and chronic pancreatitis and 107 with isolated COPD run. In study of fatty acid spectrum biological materials were prepared and gas chromatography analysis of blood serum lipid fatty acid spectrum performed according to methodology by L.V.Sazonenko et al. The study showed that COPD exacerbation was accompanied with by changes in contents of particular fatty acids both in patients with isolated COPD and in patients with comorbidity in comparison with almost healthy patients...
December 2017: Georgian Medical News
https://www.readbyqxmd.com/read/29325586/high-frequency-percussive-ventilation-increases-alveolar-recruitment-in-early-acute-respiratory-distress-syndrome-an-experimental-physiological-and-ct-scan-study
#14
Thomas Godet, Matthieu Jabaudon, Raïko Blondonnet, Aymeric Tremblay, Jules Audard, Benjamin Rieu, Bruno Pereira, Jean-Marc Garcier, Emmanuel Futier, Jean-Michel Constantin
BACKGROUND: High frequency percussive ventilation (HFPV) combines diffusive (high frequency mini-bursts) and convective ventilation patterns. Benefits include enhanced oxygenation and hemodynamics, and alveolar recruitment, while providing hypothetic lung-protective ventilation. No study has investigated HFPV-induced changes in lung aeration in patients with early acute respiratory distress syndrome (ARDS). METHODS: Eight patients with early non-focal ARDS were enrolled and five swine with early non-focal ARDS were studied in prospective computed tomography (CT) scan and animal studies, in a university-hospital tertiary ICU and an animal laboratory...
January 11, 2018: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/29325304/-the-chinese-experts-consensus-on-the-evaluation-and-management-of-asthma-exacerbation
#15
(no author information available yet)
Asthma exacerbations can do a lot of harm to the patients and consume large amounts of medical resources. This consensus is based on the domestic and foreign guidelines and literatures to standardize the evaluation and management of asthma exacerbations in China. Asthma exacerbations are characterized by a progressive increase in symptoms of shortness of breath, cough, wheezing or chest tightness and progressive decrease in lung function, and usually require modification of treatment. Recognizing risk factors and triggering factors of asthma exacerbations is helpful for the prevention and long-term management...
January 1, 2018: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/29323933/cardioventilatory-control-in-preterm-born-children-and-the-risk-of-obstructive-sleep-apnea
#16
Keren Armoni Domany, Md Monir Hossain, Leonardo Nava-Guerra, Michael C Khoo, Keith McConnell, John L Carroll, Yuanfang Xu, Mark DiFrancesco, Raouf S Amin
Rationale The contribution of ventilatory control to the pathogenesis of obstructive sleep apnea (OSA) in preterm born children is unknown. Objectives To characterize phenotypes of ventilatory control that are associated with the presence of OSA in preterm born children during early childhood. Methods Preterm and term born children without comorbid conditions were enrolled. They were categorized into OSA group and non-OSA group based on polysomnography. Measurements Loop gain, controller gain and plant gain, reflecting ventilatory instability, chemoreceptor sensitivity and blood gas response to a change in ventilation, respectively, were estimated from spontaneous sighs identified during polysomnography...
January 11, 2018: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29322217/-functional-diagnostics-in-pneumology
#17
REVIEW
M Held, S Baron, B Jany
Alongside imaging techniques, pulmonary function testing helps in the diagnosis of underlying disorders such as asthma and chronic obstructive pulmonary disease (COPD) or fibrosing lung disease. However, disease severity grading is also important, as well as disease follow-up under therapy. The value of spirometry as a first-line diagnostic test, whole-body plethysmography in advanced diagnostics, the measurement of transfer factor, as well as blood gas analysis are outlined. The importance of spiroergometry, echocardiography, and right-heart catheterization, particularly in the functional assessment of pulmonary vascular disorders, is described...
January 10, 2018: Der Internist
https://www.readbyqxmd.com/read/29321805/simultaneous-measurement-of-formic-acid-methanol-and-ethanol-in-vitreous-and-blood-samples-of-postmortem-by-headspace-gc-fid
#18
Hamideh Ghorbani, Alireza Nezami, Behjat Sheikholeslami, Arya Hedjazi, Mahnaz Ahmadimanesh
Background: Formic acid (formate) is the main reason for toxicity and death through methanol poisoning. The simultaneous determination of methanol, ethanol, and formate in the body can help to discover the cause of death and is useful in the diagnosis of acute methanol poisoning. The measurement of formate is not yet available in Iran. With regard to the increasing rate of methanol poisoning and its related mortality in Iran, as well as the main role of formate in methanol poisoning, this study was designed to set up an analytical method for the concurrent determination of ethanol, methanol, and formate...
2018: Journal of Occupational Medicine and Toxicology
https://www.readbyqxmd.com/read/29319029/clinical-and-pulmonary-functions-profiling-of-patients-with-chronic-obstructive-pulmonary-disease-experiencing-frequent-acute-exacerbations
#19
Prem Parkash Gupta, Manjunath B Govidagoudar, Rohtas Yadav, Dipti Agarwal
PURPOSE: The present study aimed at clinical and pulmonary functions profiling of patients with chronic obstructive pulmonary disease (COPD) to anticipate future exacerbations. METHODS: The study included 80 COPD patients; 40 patients had ≥2 acute exacerbations during preceding 1 year (frequent exacerbation [FECOPD] group) and 40 patients had <2 acute exacerbations during preceding 1 year (infrequent exacerbation [I-FECOPD] group). Clinical profile, sputum microbiology, blood gas analysis, spirometric indices, and diffusion capacity (transfer test) variables were assessed...
January 2018: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/29316765/-analysis-of-clinical-features-in-patients-with-pneumoconiosis-complicated-with-pulmonary-emphysema
#20
X Li, W R Dai, L Li, W F Liu, Z X Yang, L Xie
Objective: To investigate the clinical features of pneumoconiosis complicated with pulmo-nary emphysema. Methods: selected 868 patients with pneumoconiosis were selected from December 2015 to December 2016 in Hunan occupational disease prevention and treatment hospital. Collected the results of high-resolution spiral CT, arterial blood gas, ECG, pulmonary function and MRC score. The subjects were divided into pneumoconiosis complicated with pulmonary emphysema group and simple pneumoconiosis group accord-ing to the results of HRCT...
November 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
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