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Oxygen therapy prescribing

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https://www.readbyqxmd.com/read/28796538/oxygen-therapy-for-interstitial-lung-disease-physicians-perceptions-and-experiences
#1
Yet H Khor, Nicole Sl Goh, Christine F McDonald, Anne E Holland
RATIONALE: Domiciliary oxygen therapy (DOT) is commonly prescribed for patients with interstitial lung disease (ILD) and hypoxaemia, although evidence supporting benefit is limited. OBJECTIVES: The aim of this study was to explore perspectives of respiratory physicians about DOT in patients with ILD. METHODS: A qualitative study was undertaken with 26 respiratory physicians from Australia. Interviews were transcribed verbatim and coded independently by two investigators...
August 10, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28790808/copd-patients-self-reported-adherence-psychosocial-factors-and-mild-cognitive-impairment-in-pulmonary-rehabilitation
#2
Antonia Pierobon, Elisa Sini Bottelli, Laura Ranzini, Claudio Bruschi, Roberto Maestri, Giorgio Bertolotti, Marinella Sommaruga, Valeria Torlaschi, Simona Callegari, Anna Giardini
In addition to clinical comorbidities, psychological and neuropsychological problems are frequent in COPD and may affect pulmonary rehabilitation delivery and outcome. The aims of the study were to describe a COPD population in a rehabilitative setting as regards the patients depressive symptoms, anxiety, mild cognitive impairment (MCI) and self-reported adherence and to analyze their relationships; to compare the COPD sample MCI scores with normative data; and to investigate which factors might predict adherence to prescribed physical exercise...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28775065/effect-of-hypoxia-and-hyperoxia-on-exercise-performance-in-healthy-individuals-and-in-patients-with-pulmonary-hypertension-a-systematic-review
#3
Silvia Ulrich, Simon Raphael Schneider, Konrad E Bloch
Exercise performance is determined by oxygen supply to working muscles and vital organs. In healthy individuals, exercise performance is limited in the hypoxic environment at altitude, when oxygen delivery is diminished due to the reduced alveolar and arterial oxygen partial pressures. In patients with pulmonary hypertension, exercise performance is already reduced near sea level due to impairments of the pulmonary circulation and gas exchange and, presumably, these limitations are more pronounced at altitude...
August 3, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28770436/in-vitro-and-ex-vivo-neurotoxic-effects-of-efavirenz-are-greater-than-those-of-other-common-antiretrovirals
#4
Vincent T Ciavatta, Edyta K Bichler, Iris A Speigel, Courtney C Elder, Shavonne L Teng, William R Tyor, Paul S García
Although antiretroviral (ARV) therapy has reduced the incidence of severe dementia associated with HIV infection, there has been a rise in milder neurocognitive complaints. Data from HIV patients taking ARVs have shown measurable neurocognitive improvements during drug cessation, suggesting a neurotoxic role of the therapy itself. Mechanisms underlying potential ARV neurotoxicity have not been thoroughly investigated, however pathologic oxidative stress and mitochondrial dysfunction have been suspected. Using DIV 16 primary rat cortical neuron culture, we tested eight ARVs from the three most commonly prescribed ARV classes: nucleoside/nucleotide reverse transcriptase inhibitors (NRTIs/NtRTIs), non-nucleoside reverse transcriptase inhibitors (NNRTIs), and protease inhibitors (PIs) for effects on neuron viability and morphology after 24 h of drug exposure...
August 2, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28768527/bilateral-blindness-secondary-to-optic-nerve-ischemia-from-severe-amlodipine-overdose-a-case-report
#5
Raymond Kao, Yves Landry, Genevieve Chick, Andrew Leung
BACKGROUND: Calcium channel blockers are commonly prescribed medications; calcium channel blocker overdose is becoming increasingly prevalent. The typical presentation of a calcium channel blocker overdose is hypotension and decreased level of consciousness. We describe a case of a calcium channel blocker overdose that led to bilateral cortical blindness, a presentation that has not previously been reported. CASE PRESENTATION: A 49-year-old white woman with known bilateral early optic atrophy presented to our hospital with hypotension and obtundation following a known ingestion of 150 mg of amlodipine...
August 3, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28735156/adaptive-periodic-paralysis-allows-weaning-deep-sedation-overcoming-the-drowning-syndrome-in-ecmo-patients-bridged-for-lung-transplantation-a-case-series
#6
Irina Timofte, Michael Terrin, Erik Barr, June Kim, Joseph Rinaldi, Nicholas Ladikos, Jay Menaker, Ali Tabatabai, Zachary Kon, Bartley Griffith, Richard Pierson, Si Pham, Aldo Iacono, Daniel Herr
PURPOSE: Sedation in extracorporeal membrane oxygenation (ECMO) is challenging. Patients require deep sedation because of extremely high respiratory rates and increased work of breathing ("Drowning Syndrome") resulting in altered intra-thoracic pressure and reduced pump flow associated with hemodynamic compromise and decreased oxygenation. However, deep sedation impedes essential active rehabilitation with physical therapy. METHODS: We reviewed data on 3 ECMO patients for whom we used a novel approach to replace continuous drips with periodic sedation/paralysis...
July 17, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28668090/informal-caregivers-experience-of-supplemental-oxygen-in-pulmonary-fibrosis
#7
Bridget A Graney, Frederick S Wamboldt, Susan Baird, Tara Churney, Kaitlin Fier, Marjorie Korn, Mark McCormick, Thomas Vierzba, Jeffrey J Swigris
BACKGROUND: Patients prescribed supplemental oxygen (O2) therapy face challenges as they adjust to being constantly "tethered" to an oxygen delivery device. Informal caregivers (ICs) of patients with pulmonary fibrosis (PF) face their own, often overlooked hardships when O2 is brought into their home and added to their lives. Our aim was to understand the multiple effects of supplemental oxygen therapy on ICs of patients with PF. METHODS: We conducted single, semi-structured telephone interviews with twenty ICs of patients with PF who were using O2 for at least 8 months...
July 1, 2017: Health and Quality of Life Outcomes
https://www.readbyqxmd.com/read/28608512/commencement-of-cardioselective-beta-blockers-during-hospitalisation-for-acute-exacerbations-of-chronic-obstructive-pulmonary-disease
#8
Pieter A Neef, Louise M Burrell, Christine F McDonald, Louis B Irving, Douglas F Johnson, Daniel P Steinfort
BACKGROUND: In patients with chronic obstructive pulmonary disease (COPD) and comorbid cardiovascular disease emerging evidence suggests a benefit in commencing cardioselective beta-blockers. AIM: Our objective was to determine the safety of beta-blocker commencement during hospitalisation for acute exacerbation of COPD. METHODS: A retrospective cohort study of 1,071 patients hospitalised for acute exacerbation of COPD was conducted across two tertiary hospitals over a 12-month period...
June 13, 2017: Internal Medicine Journal
https://www.readbyqxmd.com/read/28375677/cardiopulmonary-exercise-testing-in-adult-congenital-heart-disease
#9
Valentina Mantegazza, Anna Apostolo, Alfred Hager
Recently, the number of patients with congenital heart diseases reaching adulthood has been progressively increasing in developed countries, and new issues are emerging: the evaluation of their capacity to cope with physical activity and whether this knowledge can be used to optimize medical management. A symptom-limited cardiopulmonary exercise test has proven to be an essential tool, because it can objectively evaluate the functional cardiovascular capacity of these patients, identify the pathological mechanisms of the defect (circulatory failure, shunts, and/or pulmonary hypertension), and help prescribe an individualized rehabilitation program when needed...
July 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28333688/treatment-planning-of-intensity-modulated-composite-particle-therapy-with-dose-and-linear-energy-transfer-optimization
#10
Taku Inaniwa, Nobuyuki Kanematsu, Koji Noda, Tadashi Kamada
The biological effect of charged-particle beams depends on both dose and particle spectrum. As one of the physical quantities describing the particle spectrum of charged-particle beams, we considered the linear energy transfer (LET) throughout this study. We investigated a new therapeutic technique using two or more ion species in one treatment session, which we call an intensity modulated composite particle therapy (IMPACT), for optimizing the physical dose and dose-averaged LET distributions in a patient as its proof of principle...
March 23, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28328974/retinal-oximetry-measures-systemic-hypoxia-in-central-nervous-system-vessels-in-chronic-obstructive-pulmonary-disease
#11
Thorunn Scheving Eliasdottir, David Bragason, Sveinn Hakon Hardarson, Charles Vacchiano, Thorarinn Gislason, Jona Valgerdur Kristjansdottir, Gudrun Kristjansdottir, Einar Stefánsson
BACKGROUND: Determination of the blood oxyhemoglobin saturation in the retinal vessels of the eye can be achieved through spectrophotometric retinal oximetry which provides access to the state of oxyhemoglobin saturation in the central nervous system circulation. The purpose of this study was to test the capability of the Oxymap T1 oximeter to detect systemic hypoxemia and the effect of supplemental oxygen on retinal vessel oxyhemoglobin saturation. METHODS: Oxygen saturation of hemoglobin in retinal arterioles and venules was measured in 11 subjects with severe chronic obstructive pulmonary disease (COPD) on long term oxygen therapy...
2017: PloS One
https://www.readbyqxmd.com/read/28317233/pirfenidone-and-nintedanib-for-pulmonary-fibrosis-in-clinical-practice-tolerability-and-adverse-drug-reactions
#12
Jonathan A Galli, Aloknath Pandya, Michelle Vega-Olivo, Chandra Dass, Huaqing Zhao, Gerard J Criner
BACKGROUND AND OBJECTIVE: The real-world tolerability of pirfenidone and nintedanib in non-clinical trial patients is unknown. Many patients with pulmonary fibrosis have significant medical co-morbidities or baseline characteristics that exclude them from clinical trial participation. METHODS: We conducted a retrospective chart review study on subjects prescribed nintedanib or pirfenidone for pulmonary fibrosis treatment (any aetiology) from September 2014 to February 2016...
August 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28267349/oxygen-therapy-for-interstitial-lung-disease-a-mismatch-between-patient-expectations-and-experiences
#13
Yet H Khor, Nicole S L Goh, Christine F McDonald, Anne E Holland
RATIONALE: Domiciliary oxygen therapy is commonly prescribed for patients with interstitial lung disease and hypoxemia, either at rest or during exertion, with the aim of improving symptoms and functional status. OBJECTIVES: This study aimed to explore perspectives of adults with interstitial lung disease about domiciliary oxygen therapy, comparing insights from patients using and not using oxygen therapy. METHODS: A qualitative study using semistructured interviews was undertaken on 24 adults residing in and near Melbourne, Australia who had a diagnosis of interstitial lung disease and met the Thoracic Society of Australia and New Zealand guidelines for domiciliary oxygen therapy...
June 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28123292/burn-injury-during-long-term-oxygen-therapy-in-denmark-and-sweden-the-potential-role-of-smoking
#14
Hanan A Tanash, Thomas Ringbaek, Fredrik Huss, Magnus Ekström
BACKGROUND: Long-term oxygen therapy (LTOT) increases life expectancy in patients with COPD and severe hypoxemia. Smoking is the main cause of burn injury during LTOT. Policy regarding smoking while on LTOT varies between countries. In this study, we compare the incidence of burn injury that required contact with a health care specialist, between Sweden (a country with a strict policy regarding smoking while on LTOT) and Denmark (a country with less strict smoking policy). METHODS: This was a population-based, cohort study of patients initiating LTOT due to any cause in Sweden and Denmark...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/27998381/who-needs-oxygen-with-positive-airway-pressure-therapy
#15
Susmita Chowdhuri, Abdulghani Sankari, James A Rowley
No abstract text is available yet for this article.
January 15, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/27959931/mate2-expression-is-associated-with-cancer-cell-response-to-metformin
#16
Sanjana Chowdhury, Eric Yung, Melania Pintilie, Hala Muaddi, Selim Chaib, ManTek Yeung, Manlio Fusciello, Jenna Sykes, Bethany Pitcher, Anna Hagenkort, Trevor McKee, Ravi Vellanki, Eric Chen, Robert G Bristow, Bradly G Wouters, Marianne Koritzinsky
BACKGROUND: There is great interest in repurposing the commonly prescribed anti-diabetic drug metformin for cancer therapy. Intracellular uptake and retention of metformin is affected by the expression of organic cation transporters (OCT) 1-3 and by multidrug and toxic compound extrusion (MATE) 1-2. Inside cells, metformin inhibits mitochondrial function, which leads to reduced oxygen consumption and inhibition of proliferation. Reduced oxygen consumption can lead to improved tumor oxygenation and radiation response...
2016: PloS One
https://www.readbyqxmd.com/read/27813685/physical-activity-and-intermittent-postconcussion-symptoms-after-a-period-of-symptom-limited-physical-and-cognitive-rest
#17
REVIEW
Quinton Sawyer, Brian Vesci, Tamara C Valovich McLeod
Reference: Schneider KJ, Iverson GL, Emery CA, McCrory P, Herring SA, Meeuwisse WH. The effects of rest and treatment following sport-related concussion: a systematic review of the literature. Br J Sports Med. 2013;47(5):304-307. CLINICAL QUESTION: After concussion and a period of symptom-limited physical and cognitive rest, do athletes who experience intermittent symptoms return to asymptomatic condition more quickly with physical activity than with prolonged physical rest? DATA SOURCES: One investigator performed an individual search for each research question using the following databases: CINAHL, Cochrane Controlled Trials Registers, EMBASE, HealthSTAR, ProQuest, PsychInfo, PubMed, SPORTDiscus, and Web of Science...
September 2016: Journal of Athletic Training
https://www.readbyqxmd.com/read/27799763/prescription-of-opioids-for-breathlessness-in-end-stage-copd-a-national-population-based-study
#18
Zainab Ahmadi, Eva Bernelid, David C Currow, Magnus Ekström
BACKGROUND: Low-dose opioids can relieve breathlessness but may be underused in late-stage COPD due to fear of complications, contributing to poor symptom control. OBJECTIVES: We aimed to study the period prevalence and indications of opioids actually prescribed in people with end-stage COPD. METHODS: The study was a longitudinal, population-based study of patients starting long-term oxygen therapy (LTOT) for COPD between October 1, 2005 and June 30, 2009 in Sweden...
2016: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/27794259/an-evaluation-of-fluid-immersion-therapy-for-the-prevention-of-pressure-ulcers
#19
P R Worsley, B Parsons, D L Bader
BACKGROUND: Individuals with impaired mobility can spend prolonged periods on support surfaces, increasing their risk of developing pressure ulcers. Manufacturers have developed mattresses to maximise contact area. The present study evaluated both the biomechanical and physiological responses to lying postures on a Fluid Immersion Simulation mattress. METHODS: Seventeen healthy participants were recruited to evaluate the mattress during three prescribed settings of immersion (high, medium and low)...
October 19, 2016: Clinical Biomechanics
https://www.readbyqxmd.com/read/27731957/a-wolf-in-sheep-s-clothing-patients-and-healthcare-professionals-perceptions-of-oxygen-therapy-an-interpretative-phenomenological-analysis
#20
Carol A Kelly, Dave Lynes, Mary R O'Brien, Ben Shaw
BACKGROUND: Despite emerging evidence and guidelines, poor prescribing and administration of oxygen therapy persists. This study aimed to explore healthcare professionals' (HCPs) and patients' perceptions of oxygen. DESIGN: Semi-structured interviews with 28 patients and 34 HCPs. FINDINGS: Three master themes uncovered: oxygen as a panacea, the burden of oxygen and antecedents to beliefs. Patients used oxygen for breathlessness and as an enabler; they were grateful to oxygen and accepted it as part of the disease...
October 12, 2016: Clinical Respiratory Journal
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