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Respiratory acidosis

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https://www.readbyqxmd.com/read/28443953/flexible-bronchoscopy-and-mechanical-ventilation-in-managing-mounier-kuhn-syndrome-a-case-report
#1
Aslihan Gürün Kaya, Aydin Çiledağ, Çetin Atasoy, Demet Karnak
CONTEXT: Mounier-Kuhn syndrome is a rare congenital condition with distinct dilatation and diverticulation of the tracheal wall. The symptoms may vary and the treatment usually consists of support. CASE REPORT: The patient was a 60-year-old male with recurrent hospital admission. He was admitted in this case due to dyspnea, cough and sputum production. An arterial blood sample revealed decompensated respiratory acidosis with moderate hypoxemia. A chest computed tomography (CT) scan showed dilatation of the trachea and bronchi, tracheal diverticula and bronchiectasis...
April 20, 2017: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/28433476/patient-with-multiple-acyl-coa-dehydrogenation-deficiency-disease-and-flad1-mutations-benefits-from-riboflavin-therapy
#2
M Auranen, A Paetau, P Piirilä, A Pohju, T Salmi, A Lamminen, M Löfberg, S Mosegaard, R K Olsen, T Tyni
Multiple acyl-CoA dehydrogenation deficiency is genetically heterogenous metabolic disease with mutations in genes involved in electron transfer to the mitochondrial respiratory chain. Disease symptoms vary from severe neonatal form to late-onset presentation with metabolic acidosis, lethargy, vomiting, muscle pain and weakness. Riboflavin therapy has been shown to ameliorate diseases symptoms in some of these patients. Recently, mutations in FAD synthase have been described to cause multiple acyl-CoA dehydrogenation deficiency...
March 9, 2017: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/28416929/role-of-coma-acidosis-malaria-score-in-patients-with-severe-malaria-among-indian-population-a-tertiary-care-center-experience
#3
Hari Krishan Aggarwal, Deepak Jain, Avinash Rao, Rajinish Kalra
OBJECTIVE: Malaria is a prime public health threat in developing countries like India. There is an unmet need of a simplified methodology for the purpose of triage and provision of intensive care to the severely infected patients in these areas. MATERIALS AND METHODS: We did a prospective study in patients (n=60) admitted with severe malaria in a single tertiary care center in the state of Haryana, India. We assessed the role of coma acidosis malaria (CAM) score in these patients when predicting mortality and morbidity events...
February 2017: Eurasian Journal of Medicine
https://www.readbyqxmd.com/read/28412161/the-effect-of-the-apneic-period-on-the-respiratory-physiology-of-patients-undergoing-intubation-in-the-emergency-department
#4
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...
April 2, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28407675/-extracorporeal-co2-elimination-ecco2r-for-hypercapnic-respiratory-failure-from-pathophysiology-to-clinical-application
#5
C Karagiannidis, A Philipp, S Strassmann, S Schäfer, M Merten, W Windisch
Extracorporeal CO2 removal (ECCO2R) is becoming an increasingly established treatment option for patients with acute severe hypercapnic respiratory failure. Technically, pumpless arterio-venous systems using the natural arterio-venous pressure gradient and also pump-driven veno-venous systems are available. Here, veno-venous ECCO2R has become the preferred technique, as settings for arterio-venous ECCO2R are restricted and side effects are more common with arterio-venous ECCO2R. Using veno-venous ECCO2R with blood flow rates up to 450 ml/min 60 to 80 ml CO2 can be removed per minute corresponding to 20 to 30 % of the total amount of CO2 production...
April 2017: Pneumologie
https://www.readbyqxmd.com/read/28407445/lethal-bentazone-intoxication-a-report-of-two-cases
#6
Petar Škavić, Zijad Duraković, Marina Nestić
This study presents two cases of lethal bentazone poisonings, their clinical presentation, the course of the disease and the autopsy findings. The first is a 50-year-old male who had sprayed corn with a solution of bentazone and was admitted to the hospital with sweating, fever, nausea, vomiting of aqueous and hemorrhagic content, and bloody, watery stools. He was treated according to the symptoms including extracorporeal hemodialysis, but eventually suffered from multiorgan failure (acute respiratory failure, acute liver failure, coagulopathy, acute renal failure, metabolic acidosis, and gastrointestinal bleeding) and died 11...
April 13, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28400704/effects-of-dystocia-on-blood-gas-parameters-acid-base-balance-and-serum-lactate-concentration-in-heavy-draft-newborn-foals
#7
Yuki Kimura, Takahiro Aoki, Akiko Chiba, Yasuo Nambo
Dystocia is often lethal for neonatal foals; however, its clinicopathological features remain largely unknown. We investigated the effect of dystocia on the foal blood profile. Venous blood samples were collected from 35 foals (5 Percheron and 30 crossbreds between Percheron, Belgian, and Breton heavy draft horses) at 0 hr, 1 hr, 12 hr and 1 day after birth. Dystocia was defined as prolonged labor >30 min with strong fetal traction with or without fetal displacement. The dystocia group (n=13) showed lower mean values for pH (P<0...
2017: Journal of Equine Science
https://www.readbyqxmd.com/read/28399089/-the-topical-problems-of-the-application-of-the-taser-electroshock-devices
#8
I V Kondratova, K Yu Kulinkovich
The objective of the present study was the analysis of publications in the foreign medical literature concerning the problems of safety, clinical diagnostics, pathological morphology, and treatment of the patients subjected to the impact by various models of the TASER electroshock devices. The materials for this article were borrowed from the available Internet resources and libraries. The methods of scientific analysis were employed to follow up the dynamics of publication and to determine the number of publications on the issues of interest...
2017: Sudebno-meditsinskaia Ekspertiza
https://www.readbyqxmd.com/read/28398947/acidosis-but-not-alkalosis-affects-anaerobic-metabolism-and-performance-in-a-4-km-time-trial
#9
Carlos Rafaell Correia-Oliveira, João Paulo Lopes-Silva, Romulo Bertuzzi, Glenn K McConell, David John Bishop, Adriano Eduardo Lima-Silva, Maria Augusta Peduti Dal'Molin Kiss
PURPOSE: To determine the effect of pre-exercise metabolic acidosis and alkalosis on power output (PO) and aerobic and anaerobic energy expenditure during a 4-km cycling time trial (TT). METHODS: Eleven recreationally trained cyclists (VO2peak 54.1 ± 9.3 mL·kg·min) performed a 4-km TT 100 min after ingesting in a double-blind matter 0.15 g·kg of body mass of ammonium chloride (NH4Cl, acidosis), 0.3 g·kg of sodium bicarbonate (NaHCO3, alkalosis) or 0.15 g·kg of CaCO3 (placebo)...
April 11, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28396201/pharmacological-but-not-genetic-alteration-of-neural-epo-modifies-the-co2-h-central-chemosensitivity-in-postnatal-mice
#10
Sofien Laouafa, Anne-Sophie Perrin-Terrin, Florine Jeton, Elizabeth Elliot-Portal, Rose Tam, Laurence Bodineau, Nicolas Voituron, Jorge Soliz
Cerebral erythropoietin (Epo) plays a crucial role for respiratory control in newborn rodents. We showed previously that soluble Epo receptor (sEpoR: an Epo antagonist) reduces basal ventilation and hypoxic hyperventilation at postnatal day 10 (P10) and in adult mice. However, at these ages (P10 and adulthood), Epo had no effect on central chemosensitivity. Nevertheless, it is known that the sensitivity to CO2/H(+) during the mammalian respiratory network maturation process is age-dependent. Accordingly, in this study we wanted to test the hypothesis that cerebral Epo is involved in the breathing stimulation induced by the activation of central CO2/H(+) chemoreceptors at earlier postnatal ages...
April 8, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28395030/clinical-features-molecular-heterogeneity-and-prognostic-implications-in-yars2-related-mitochondrial-myopathy
#11
Ewen W Sommerville, Yi Shiau Ng, Charlotte L Alston, Cristina Dallabona, Micol Gilberti, Langping He, Charlotte Knowles, Sophie L Chin, Andrew M Schaefer, Gavin Falkous, David Murdoch, Cheryl Longman, Marianne de Visser, Laurence A Bindoff, John M Rawles, John C S Dean, Richard K Petty, Maria E Farrugia, Tobias B Haack, Holger Prokisch, Robert McFarland, Douglass M Turnbull, Claudia Donnini, Robert W Taylor, Gráinne S Gorman
Importance: YARS2 mutations have been associated with a clinical triad of myopathy, lactic acidosis, and sideroblastic anemia in predominantly Middle Eastern populations. However, the identification of new patients expands the clinical and molecular spectrum of mitochondrial disorders. Objectives: To review the clinical, molecular, and genetic features of YARS2-related mitochondrial disease and to demonstrate a new Scottish founder variant. Design, Setting, and Participants: An observational case series study was conducted at a national diagnostic center for mitochondrial disease in Newcastle upon Tyne, England, and review of cases published in the literature...
April 10, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28392039/effect-of-arterial-puncture-on-ventilation
#12
Ashima Synghal Sahni, Hemil Gonzalez, Aiman Tulaimat
BACKGROUND: Clinicians frequently assume that during arterial puncture for measuring arterial blood gases patients hyperventilate from pain and anxiety. This assumption leads clinicians to falsely interpret a PaCO2 and pH near the upper limit of normal as a chronic respiratory acidosis corrected by an acute respiratory alkalosis. OBJECTIVE: Determine if participants hyperventilate during arterial puncture from pain and anxiety. METHODS: We recruited participants from a pulmonary function laboratory referred for arterial blood gas measurement...
April 6, 2017: Heart & Lung: the Journal of Critical Care
https://www.readbyqxmd.com/read/28391155/an-approach-to-clarify-the-effect-mechanism-of-glyphosate-on-body-malformations-during-embryonic-development-of-zebrafish-daino-rerio
#13
Ekrem Sulukan, Mine Köktürk, Hamid Ceylan, Şükrü Beydemir, Mesut Işik, Muhammed Atamanalp, Saltuk Buğrahan Ceyhun
In this study, it has been investigated that the effects of glyphosate, which is a herbicide within organophosphate and unselective widely used in agriculture on enzyme activity of carbonic anhydrase, production of reactive oxygen species, cell apoptosis and body morphology during the embryonic development of zebrafish. To this end, it has been treated embryo with 1, 5, 10 and 100 mg/L gyphosate at 96 h. The embryos treated with glyphosate from 4 hpf were evaluated by considering the survival rates, hatching rates, body malformations under the stereo microscope in 24, 48, 72 and 96th hours...
April 5, 2017: Chemosphere
https://www.readbyqxmd.com/read/28390055/extracorporeal-co2-removal-by-hemodialysis-in-vitro-model-and-feasibility
#14
Alexandra G May, Ayan Sen, Matthew E Cove, John A Kellum, William J Federspiel
BACKGROUND: Critically ill patients with acute respiratory distress syndrome and acute exacerbations of chronic obstructive pulmonary disease often develop hypercapnia and require mechanical ventilation. Extracorporeal carbon dioxide removal can manage hypercarbia by removing carbon dioxide directly from the bloodstream. Respiratory hemodialysis uses traditional hemodialysis to remove CO2 from the blood, mainly as bicarbonate. In this study, Stewart's approach to acid-base chemistry was used to create a dialysate that would maintain blood pH while removing CO2 as well as determine the blood and dialysate flow rates necessary to remove clinically relevant CO2 volumes...
December 2017: Intensive Care Medicine Experimental
https://www.readbyqxmd.com/read/28385813/acidosis-increases-the-susceptibility-of-respiratory-epithelial-cells-to-pseudomonas-aeruginosa-induced-cytotoxicity
#15
Iviana M Torres, Sally Demirdjian, Jennifer Vargas, Britton C Goodale, Brent L Berwin
Bacterial infection can lead to acidosis of the local microenvironment. While this is believed to exacerbate disease pathogenesis, the mechanisms by which changes in pH alter disease progression are poorly understood. In this report we test the hypothesis that acidosis enhances respiratory epithelial cell death in response to infection with Pseudomonas aeruginosa. Our findings support that acidosis in the context of P. aeruginosa infection results in increased epithelial cell cytotoxicity due to ExoU intoxication...
April 6, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28378831/carbon-dioxide-induced-plasticity-of-branchial-acid-base-pathways-in-an-estuarine-teleost
#16
Elizabeth B Allmon, Andrew J Esbaugh
Anthropogenic CO2 is expected to drive ocean pCO2 above 1,000 μatm by 2100 - inducing respiratory acidosis in fish that must be corrected through branchial ion transport. This study examined the time course and plasticity of branchial metabolic compensation in response to varying levels of CO2 in an estuarine fish, the red drum, which regularly encounters elevated CO2 and may therefore have intrinsic resilience. Under control conditions fish exhibited net base excretion; however, CO2 exposure resulted in a dose dependent increase in acid excretion during the initial 2 h...
April 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28374410/intrapartum-and-neonatal-outcomes-in-singleton-pregnancies-following-conception-by-assisted-reproduction-techniques
#17
Kellie M Rozdarz, Christopher J Flatley, Sailesh Kumar
BACKGROUND: To characterise maternal demographics and ascertain whether clinically important differences exist in the intrapartum and neonatal outcomes associated with assisted reproductive technology (ART). MATERIALS AND METHODS: A retrospective study was undertaken between January 2007 and December 2013 of all singleton pregnancies conceived via ART at a major tertiary unit in Brisbane, Australia. Intrapartum outcomes were mode of delivery and indication for emergency caesarean...
April 3, 2017: Australian & New Zealand Journal of Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/28373245/an-east-asian-common-variant-vinculin-p-asp841his-was-associated-with-sudden-unexplained-nocturnal-death-syndrome-in-the-chinese-han-population
#18
Jianding Cheng, John W Kyle, Di Lang, Brandi Wiedmeyer, Jian Guo, Kun Yin, Lei Huang, Ravi Vaidyanathan, Terry Su, Jonathan C Makielski
BACKGROUND: We have identified the cardiomyopathy-susceptibility gene vinculin (VCL) mutation M94I may account for a sudden unexplained nocturnal death syndrome (SUNDS) case. We addressed whether VCL common variant D841H is associated with SUNDS. METHODS AND RESULTS: In 8 of 120 SUNDS cases, we detected an East Asian common VCL variant p.Asp841His (D841H). Comparing the H841 allele frequency of the general population in the local database (15 of 1818) with SUNDS victims (10 of 240) gives an odds ratio for SUNDS of 5...
April 3, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28367294/decrease-in-spectral-entropy-by-low-tidal-volume-ventilation-associated-severe-hypercapnia-a-case-report
#19
Junggun Ann, Sung Mee Jung, Sang-Jin Park
Severe hypercapnia can be predicted by a decrease in cerebral electrical activity. The authors describe a sudden decrease in spectral entropy due to severe hypercapnia-induced respiratory acidosis in a patient with chronic pulmonary obstructive disease during lung resection. After two and a half hours of low tidal volume ventilation in the lateral position, the state entropy suddenly dropped from 45 to 7, without any changes in the effect-site concentration of propofol, end-tidal carbon dioxide (CO2) tension, oxygen saturation, or arterial pressure...
April 2017: Korean Journal of Anesthesiology
https://www.readbyqxmd.com/read/28358634/effects-of-alfaxalone-administered-intravenously-to-healthy-yearling-loggerhead-sea-turtles-caretta-caretta-at-three-different-doses
#20
Brianne E Phillips, Lysa P Posner, Gregory A Lewbart, Emily F Christiansen, Craig A Harms
OBJECTIVE To compare physiologic and anesthetic effects of alfaxalone administered IV to yearling loggerhead sea turtles (Caretta caretta) at 3 different doses. DESIGN Randomized crossover study. ANIMALS 9 healthy yearling loggerhead sea turtles. PROCEDURES Animals received each of 3 doses of alfaxalone (3 mg/kg [1.4 mg/lb], 5 mg/kg [2.3 mg/lb], or 10 mg/kg [4.5 mg/lb]) administered IV in randomly assigned order, with a minimum 7-day washout period between doses. Endotracheal intubation was attempted following anesthetic induction, and heart rate, sedation depth, cloacal temperature, and respirations were monitored...
April 15, 2017: Journal of the American Veterinary Medical Association
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