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Respiratory acidosis

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https://www.readbyqxmd.com/read/29437806/rhabdomyolysis-in-stuve-wiedemann-syndrome
#1
Pemantah Sandheeah Ramdeny, Colin Powell, Mallinath Chakraborty, Louise Hartley
A 6-month-old male infant with Stuve-Wiedemann syndrome (SWS) presented with an acute respiratory arrest secondary to a rhinovirus respiratory infection from which he was rapidly resuscitated. He developed an acute kidney injury requiring supportive treatment and on day 3 of his illness was noted to have developed severe rhabdomyolysis (creatine kinase level 132 040 U/L (normal <320 U/L)). He was born from consanguineous parents with homozygous mutations in the leukaemia inhibitory factor receptor. He had skeletal dysplasia with metabolic bone disease and episodes of hyperthermia with lactic acidosis...
February 8, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29434764/pediatric-acute-respiratory-distress-syndrome-current-views
#2
Jinfeng Liu, Wei Wang, Fengli Liu, Zhenguang Li
Acute respiratory distress syndrome (ARDS) mainly involves acute respiratory failure. In addition to this affected patients feel progressive arterial hypoxemia, dyspnea, and a marked increase in the work of breathing. The only clinical solution for the above pathological state is ventilation. Mechanical ventilation is necessary to support life in ARDs but it itself worsen lung injury and the term is known clinically as 'ventilation induced lung injury' (VILI). At the cellular level, respiratory epithelial cells are subjected to cyclic stretch, i...
February 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29430448/extracorporeal-carbon-dioxide-removal-in-acute-exacerbations-of-chronic-obstructive-pulmonary-disease
#3
REVIEW
Tommaso Pettenuzzo, Eddy Fan, Lorenzo Del Sorbo
Extracorporeal carbon dioxide removal (ECCO 2 R) has been proposed as an adjunctive intervention to avoid worsening respiratory acidosis, thereby preventing or shortening the duration of invasive mechanical ventilation (IMV) in patients with exacerbation of chronic obstructive pulmonary disease (COPD). This review will present a comprehensive summary of the pathophysiological rationale and clinical evidence of ECCO 2 R in patients suffering from severe COPD exacerbations.
January 2018: Annals of Translational Medicine
https://www.readbyqxmd.com/read/29429571/ndufb8-mutations-cause-mitochondrial-complex-i-deficiency-in-individuals-with-leigh-like-encephalomyopathy
#4
Dorota Piekutowska-Abramczuk, Zahra Assouline, Lavinija Mataković, René G Feichtinger, Eliška Koňařiková, Elżbieta Jurkiewicz, Piotr Stawiński, Mirjana Gusic, Andreas Koller, Agnieszka Pollak, Piotr Gasperowicz, Joanna Trubicka, Elżbieta Ciara, Katarzyna Iwanicka-Pronicka, Dariusz Rokicki, Sylvain Hanein, Saskia B Wortmann, Wolfgang Sperl, Agnès Rötig, Holger Prokisch, Ewa Pronicka, Rafał Płoski, Giulia Barcia, Johannes A Mayr
Respiratory chain complex I deficiency is the most frequently identified biochemical defect in childhood mitochondrial diseases. Clinical symptoms range from fatal infantile lactic acidosis to Leigh syndrome and other encephalomyopathies or cardiomyopathies. To date, disease-causing variants in genes coding for 27 complex I subunits, including 7 mitochondrial DNA genes, and in 11 genes encoding complex I assembly factors have been reported. Here, we describe rare biallelic variants in NDUFB8 encoding a complex I accessory subunit revealed by whole-exome sequencing in two individuals from two families...
February 1, 2018: American Journal of Human Genetics
https://www.readbyqxmd.com/read/29417853/challenges-in-the-diagnosis-of-acute-cyanide-poisoning
#5
J L Parker-Cote, J Rizer, J P Vakkalanka, S V Rege, C P Holstege
OBJECTIVE: The aim of this systematic review was to identify isolated acute cyanide poison cases and to identify reported signs, symptoms, and laboratory findings. METHODS: We searched MEDLINE, Cochrane Reviews, and Web of Science case reports and series using a number of MeSH descriptors pertaining to cyanide, toxicity, and poisonings. We excluded studies on plants, laboratory analyses, smoke inhalation poisonings, animals as well as non-English language articles and those in which data were not available...
February 8, 2018: Clinical Toxicology
https://www.readbyqxmd.com/read/29390242/-severe-lactic-acidosis-requiring-continuos-haemodiafiltration-in-a-young-patient-with-unrecognized-metabolic-abnormality-case-report
#6
Federica N Vigotti, Germana Daidola, Antonio Marciello, Francesco Berruto, Antonietta Rizzuto, Ernesto Reina, Paolo M Perosa, Marco Saltarelli
BACKGROUND: Lactic acidosis (LA) is the most common form of metabolic acidosis, defined by lactate values greater than 5 mmol/L and pH<7.34. The pathogenesis of LA involves hypoxic causes (type A) and non-hypoxic (type B), often coexisting. Identification and removal of the trigger are mandatory in the therapeutic management of LA. The case: A 38 years-old male patient entered the Emergency Ward for dyspnea, fever, vomiting and hyporexia. An important respiratory distress with hyperventilation due to severe LA was found, together with severe hypoglicemia, without renal impairment...
February 2018: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
https://www.readbyqxmd.com/read/29371025/home-non-invasive-ventilation-for-copd-how-who-and-when
#7
Patrick B Murphy, Nicholas Hart
Patients with chronic obstructive pulmonary disease (COPD) and chronic respiratory failure have high levels of morbidity and mortality. The clinical efficacy of long term home oxygen therapy has been well documented in this patient group but despite the efficacy of non-invasive ventilation (NIV) during acute decompensated respiratory failure the addition of home NIV has been associated with equivocal results. The physiological efficacy of home NIV to improve gas exchange in chronic stable hypercapnic respiratory failure has been proven in small studies but larger clinical trials failed to translate this into clinical efficacy...
January 19, 2018: Archivos de Bronconeumología
https://www.readbyqxmd.com/read/29367072/the-effects-of-elevated-environmental-co2-on-nitrite-uptake-in-the-air-breathing-clown-knifefish-chitala-ornata
#8
Le Thi Hong Gam, Frank Bo Jensen, Do Thi Thanh Huong, Nguyen Thanh Phuong, Mark Bayley
Nitrite and carbon dioxide are common environmental contaminants in the intensive aquaculture ponds used to farm clown knifefish (Chitala ornata) in the Mekong delta, Vietnam. Here we tested the hypothesis that hypercapnia reduces nitrite uptake across the gills, because pH regulation will reduce chloride uptake and hence nitrite uptake as the two ions compete for the same transport route via the branchial HCO3-/Cl- exchanger. Fish fitted with arterial catheters were exposed to normocapnic/normoxic water (control), nitrite (1 mM), hypercapnia (21 mmHg CO2), or combined hypercapnia (acclimated hypercapnia) and nitrite for 96 h...
January 19, 2018: Aquatic Toxicology
https://www.readbyqxmd.com/read/29361576/ammonia-excretion-and-acid-base-regulation-in-the-american-horseshoe-crab-limulus-polyphemus
#9
Stephanie Hans, Alex R Quijada-Rodriguez, Garett J P Allen, Horst Onken, Jason R Treberg, Dirk Weihrauch
Many studies have investigated ammonia excretion and acid-base regulation in aquatic arthropods, yet current knowledge of marine chelicerates is non-existent. In American horseshoe crabs (Limulus polyphemus), book gills bear physiologically distinct regions: dorsal and ventral half-lamellae, and central mitochondria-rich (CMRA) and peripheral mitochondria-poor areas (PMPA). CMRA and ventral half-lamella exhibited characteristics important to ammonia excretion and/or acid-base regulation as supported by high expression levels of Rhesus-protein 1 (LpRh-1), cytoplasmic carbonic anhydrase (CA-2), and hyperpolarization-activated cyclic nucleotide-gated K+ channel (HCN) compared to PMPA and dorsal half-lamella...
January 18, 2018: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29340149/acute-kidney-injury-due-to-multiple-hymenoptera-stings-a-clinicopathological-study
#10
Sanjay Vikrant, Anupam Parashar
Background: Acute kidney injury (AKI) after multiple Hymenoptera stings is well known but still a rare phenomenon. Methods: We conducted a retrospective study of the clinicopathological spectrum of AKI due to multiple Hymenoptera stings over 13 years (July 2003-June 2016). Results: A total of 35 patients were diagnosed with AKI due to multiple Hymenoptera stings. The mean age of the patients was 44.7 ± 17.4 years and the majority (60%) were men...
August 2017: Clinical Kidney Journal
https://www.readbyqxmd.com/read/29324515/acute-cor-pulmonale-in-veno-venous-extracorporeal-membrane-oxygenation-three-case-reports
#11
Erik R Dong, David G Ng, Danny Ramzy, Joshua S Chung, Oren Friedman, Alain Combes, Francisco A Arabia, Michael Nurok
A retrospective review of three patients with acute respiratory distress syndrome (ARDS) and normal baseline right ventricular function admitted to the Cardiac Surgery Intensive Care Unit whom developed acute cor pulmonale while on veno-venous extracorporeal membrane oxygenation. These patients were diagnosed with ARDS using Berlin Criteria definitions and cannulated with a dual lumen (Avalon) cannula. Despite variations in history, presentation, and course, findings of acute cor pulmonale were encountered 4 to 6 weeks after extracorporeal membrane oxygenation cannulation...
January 10, 2018: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29286387/establishment-of-an-extracellular-acidic-ph-culture-system
#12
Ayano Kondo, Tsuyoshi Osawa
Conditions of the tumor microenvironment, such as hypoxia or nutrient starvation, play critical roles in cancer progression and malignancy. However, the role of acidic extracellular pH in tumor aggressiveness and its underlying mechanism has not been extensively studied compared to hypoxic or nutrient starvation conditions. In addition, a well-defined culture method to mimic the acidic extracellular tumor microenvironment has not been fully reported. Here we present a simple in vitro culture method to maintain acidic extracellular pH using reduced bicarbonate and increased lactate or HCl concentrations in the culture medium...
November 19, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29234144/umbilical-cord-milking-at-birth-for-term-newborns-with-acidosis-neonatal-outcomes
#13
Anup Katheria, Judith Mercer, Melissa Brown, Wade Rich, Katie Baker, M J Harbert, Brianna Pierce, Kasim Hassen, Neil Finer
OBJECTIVE: To determine if umbilical cord milking is detrimental in compromised term/near-term infants. STUDY DESIGN: A retrospective analysis of infants with abnormal cord gases (cord arterial or venous pH of ≤ 7.1 or base deficit > -12). We collected maternal risk factors, cord management, birth, and neonatal outcomes during hospitalization. RESULT: We found 157 infants who met the criteria for abnormal cord gases. Thirty-six of those had umbilical cord milking at delivery...
December 12, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/29181745/salicylate-intoxication-in-an-infant-a-case-report
#14
Rita Espírito Santo, Sara Vaz, Filipa Jalles, Leonor Boto, Francisco Abecasis
In children, the most common cause of an elevated anion gap (AG) with ketonemia, ketonuria, hyperglycemia, and glycosuria is diabetic ketoacidosis. However, when the clinical history is not clear, other causes must be considered. A 9-month-old girl was transferred to our pediatric intensive care unit (PICU) because of severe metabolic acidosis. On admission, she presented with Kussmaul breathing, tachycardia, irritability, and fever. Blood gasses revealed metabolic acidosis with superimposed respiratory alkalosis and elevated AG...
November 27, 2017: Drug Safety—Case Reports
https://www.readbyqxmd.com/read/29179681/low-flow-extracorporeal-co2-removal-in-ards-patients-a-prospective-short-term-crossover-pilot-study
#15
Harlinde Peperstraete, Sunny Eloot, Pieter Depuydt, Filip De Somer, Carl Roosens, Eric Hoste
BACKGROUND: Lung protective mechanical ventilation (MV) is the corner stone of therapy for ARDS. However, its use may be limited by respiratory acidosis. This study explored feasibility of, effectiveness and safety of low flow extracorporeal CO2 removal (ECCO2R). METHODS: This was a prospective pilot study, using the Abylcap® (Bellco) ECCO2R, with crossover off-on-off design (2-h blocks) under stable MV settings, and follow up till end of ECCO2R. Primary endpoint for effectiveness was a 20% reduction of PaCO2 after the first 2-h...
November 28, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/29173298/management-of-congenital-heart-disease-associated-with-ellis-van-creveld-short-rib-thoracic-dysplasia
#16
Devyani Chowdhury, Katie B Williams, Aaron Chidekel, Christian Pizarro, Catherine Preedy, Millie Young, Christine Hendrickson, Donna L Robinson, Portia A Kreiger, Erik G Puffenberger, Kevin A Strauss
OBJECTIVE: To evaluate clinical outcome of patients with Ellis-van Creveld syndrome (EVC) in whom congenital heart disease (CHD) repair was delayed intentionally to reduce the risk of postoperative respiratory morbidity and mortality. STUDY DESIGN: This retrospective review of 51 EVC c.1886+5G>T homozygotes born between 2005 and 2014 focused on 18 subjects who underwent surgery for CHD, subdivided into early (mean, 1.3 months) vs delayed (mean, 50.1 months) repair...
December 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/29160640/thoracoscopic-repair-of-congenital-diaphragmatic-hernia-review-of-the-results
#17
Catarina Barroso, Jorge Correia-Pinto
Congenital diaphragmatic hernia (CDH) remains one of the major challenges in neonatal surgery. Survival rate has increased in the last decades mainly due to perinatal care and surgical technique improvements. Classically, a laparotomy has been performed after cardiovascular and respiratory stabilization. Introduction of thoracoscopy in the repair of CDH brought the known advantages of reduced postoperative pain and better cosmesis. However, its safety and effectiveness have been questioned in the last few years...
November 21, 2017: Minerva Pediatrica
https://www.readbyqxmd.com/read/29152544/determinants-and-outcome-of-metabolic-acidosis-in-diarrheal-children-under-5-years-of-age-in-an-urban-critical-care-ward-in-bangladesh
#18
Sharifuzzaman, Monira Sarmin, Tahmeed Ahmed, Tahmina Alam, Shoeb Bin Islam, Md Munirul Islam, Mohammod Jobayer Chisti
We evaluated the independent determinants and outcome of metabolic acidosis in diarrheal children. Children under 5 years of age admitted with diarrhea and severe respiratory distress in the critical care ward at Dhaka Hospital of icddr,b (International Centre for Diarrhoeal Disease Research, Bangladesh) from April 2010 to April 2014 who had their reports of arterial blood gas analyses were enrolled in the study. We compared clinical and laboratory characteristics between the study children with (cases = 74) and without metabolic acidosis (controls = 65)...
2017: Global Pediatric Health
https://www.readbyqxmd.com/read/29149019/incidence-and-consequences-of-near-drowning-related-pneumonia-a-descriptive-series-from-martinique-french-west-indies
#19
Laura Cerland, Bruno Mégarbane, Hatem Kallel, Yanick Brouste, Hossein Mehdaoui, Dabor Resiere
Drowning represents one major cause of accidental death. Near-drowning patients are exposed to aspiration that may result in pneumonia with life-threatening consequences. We designed this descriptive study to investigate the frequency, nature, and consequences of post-drowning pneumonia. One hundred and forty-four near-drowning patients (33 children and 111 adults) admitted during four years to the University Hospital of Martinique, French Indies, were included. Patients presented pre-hospital cardiac arrest (41%) and exhibited acute respiratory failure (54%), cardiovascular failure (27%), and lactic acidosis (75%) on admission...
November 17, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29144241/shifting-risks-and-conflicting-outcomes-ecmo-for-neonates-with-congenital-diaphragmatic-hernia-in-the-modern-era
#20
Joseph W Turek, Joseph R Nellis, Brenton G Sherwood, Meera Kotagal, Andrew L Mesher, Ravi R Thiagarajan, Sonali S Patel, Jeffrey R Avansino, Peter T Rycus, D Michael McMullan, Thomas V Brogan
OBJECTIVES: To update previously described trends for neonates with congenital diaphragmatic hernia (CDH) receiving ECMO with changes in recommendations for care, and to determine how recent advancements in respiratory care have affected this patient population. STUDY DESIGN: This study is a retrospective review of more than 2500 neonates with CDH who received ECMO listed in the Extracorporeal Life Support Organization (ELSO) registry. Cochran-Armitage and multivariate regression analyses were used to analyze changes in the patient population over time and in mortality-related risk factors...
November 2017: Journal of Pediatrics
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