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Ambulatory oxygen

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https://www.readbyqxmd.com/read/28438305/cardiovascular-response-to-recreational-hockey-in-middle-aged-men
#1
Zack A Goodman, Scott G Thomas, Robert C Wald, Jack M Goodman
The present study examined the hemodynamic response to recreational pick-up hockey relative to maximal exercise testing in middle-aged men. A total of 23 men with a mean age of 53 ± 7 years were studied. Graded exercise testing on a cycle ergometer determined maximal oxygen consumption, blood pressure (BP), and heart rate (HR). Ambulatory BP and Holter electrocardiographic monitoring was performed during one of their weekly hockey games (mean duration = 45 ± 7.2 minutes): for "On-Ice" responses (PLAY; data recorded while standing immediately after a shift; 8...
April 11, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28405091/ambulatory-extracorporeal-membrane-oxygenation-with-subclavian-venoarterial-cannulation-to-increase-mobility-and-recovery-in-a-patient-awaiting-cardiac-transplantation
#2
Samuel Jacob, Juan C MacHannaford, Themistokles Chamogeorgakis, Gonzalo V Gonzalez-Stawinski, Joost Felius, Aldo E Rafael, Rajasekhar S Malyala, Brian Lima
Venoarterial extracorporeal membrane oxygenation (ECMO) can provide temporary cardiopulmonary support for patients in hemodynamic extremis or refractory heart failure until more durable therapies-such as cardiac transplantation or a left ventricular assist device-can be safely implemented. Conventional ECMO cannulation strategies commonly employ the femoral artery and vein, constraining the patients to the supine position for the duration of ECMO support. We have recently adopted a modified cannulation approach to promote patient mobility, rehabilitation, and faster recovery and to mitigate complications associated with femoral arterial cannulation, such as limb ischemia and compartment syndrome...
April 2017: Proceedings of the Baylor University Medical Center
https://www.readbyqxmd.com/read/28378815/prediction-of-oxygen-uptake-dynamics-by-machine-learning-analysis-of-wearable-sensors-during-activities-of-daily-living
#3
T Beltrame, R Amelard, A Wong, R L Hughson
Currently, oxygen uptake () is the most precise means of investigating aerobic fitness and level of physical activity; however, can only be directly measured in supervised conditions. With the advancement of new wearable sensor technologies and data processing approaches, it is possible to accurately infer work rate and predict during activities of daily living (ADL). The main objective of this study was to develop and verify the methods required to predict and investigate the dynamics during ADL. The variables derived from the wearable sensors were used to create a predictor based on a random forest method...
April 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28362876/supervised-exercise-training-versus-usual-care-in-ambulatory-patients-with-left-ventricular-assist-devices-a-systematic-review
#4
Harsha V Ganga, Amanda Leung, Jennifer Jantz, Gaurav Choudhary, Loren Stabile, Daniel J Levine, Satish C Sharma, Wen-Chih Wu
Implantation of left ventricular assist devices (LVAD) has increased because of improved safety profile and limited availability of heart transplantation. Although supervised exercise training (ET) programs are known to improve exercise capacity and quality of life (QoL) in heart failure (HF) patients, similar data is inconclusive in LVAD patients. Thus, we performed a systematic review on studies that incorporated supervised ET and measured peak oxygen uptake in LVAD patients. A total of 150 patients in exercise and 55 patients in control groups were included from 8 studies selected from our predefined criteria...
2017: PloS One
https://www.readbyqxmd.com/read/28359655/in-vitro-and-in-vivo-evaluation-of-a-novel-integrated-wearable-artificial-lung
#5
Shalv P Madhani, Brian J Frankowski, Greg W Burgreen, Jim F Antaki, Robert Kormos, Jonathan D'Cunha, William J Federspiel
BACKGROUND: Conventional extracorporeal membrane oxygenation (ECMO) is cumbersome and is associated with high morbidity and mortality. We are currently developing the Pittsburgh Ambulatory Assist Lung (PAAL), which is designed to allow for ambulation of lung failure patients during bridge to transplant or recovery. In this study, we investigated the in vitro and acute in vivo performance of the PAAL. METHODS: The PAAL features a 1.75-inch-diameter, cylindrical, hollow-fiber membrane (HFM) bundle of stacked sheets, with a surface area of 0...
March 4, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28306686/utility-of-walk-tests-in-evaluating-functional-status-among-participants-in-an-outpatient-cardiac-rehabilitation-program
#6
Kristie M Harris, Derek R Anderson, Jacob D Landers, Charles F Emery
PURPOSE: Although walk tests are frequently used in cardiac rehabilitation (CR), no prior study has evaluated the capacity of these measures to predict peak oxygen uptake during exercise testing (V·o2peak). This study evaluated the interrelationship of objective measures of exercise performance (walk and exercise testing) among patients entering CR as well as a novel measure of functional status assessment for use in CR. METHODS: Forty-nine patients (33 males) referred to an outpatient CR program were evaluated with objective measures of ambulatory functional status (peak oxygen uptake [V·o2peak], 6-minute walk test [6MWT], and 60-ft walk test [60ftWT])...
March 15, 2017: Journal of Cardiopulmonary Rehabilitation and Prevention
https://www.readbyqxmd.com/read/28298764/postoperative-sore-throat-prevention-in-ambulatory-surgery-a-comparison-between-preoperative-aspirin-and-magnesium-sulfate-gargle-a-prospective-randomized-double-blind-study
#7
Surajit Chattopadhyay, Anjan Das, Sabyasachi Nandy, Sandip RoyBasunia, Tapobrata Mitra, Partha Sarathi Halder, Subinay Chhaule, Subrata Kumar Mandal
BACKGROUND: Postoperative sore throat (POST) frequently hampers the positive feedback of ambulatory surgery in spite of so many measures. This study was carried out to compare the efficacy of preoperative magnesium sulfate and aspirin gargle in preventing POST after ambulatory surgery. MATERIALS AND METHODS: It was a prospective, randomized, and double-blinded study. Fifty-six adult patients of either sex, aged 25-50, of American Society of Anesthesiologists physical status I-II, scheduled for day care surgery, were randomly allocated to Group A ([n = 28] receiving aspirin gargle [325 mg tablet]) and Group M ([n = 28] receiving magnesium sulfate [20 mg/kg] gargle)...
January 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/28295616/associations-between-anesthetic-variables-and-functional-outcome-in-dogs-with-thoracolumbar-intervertebral-disk-extrusion-undergoing-decompressive-hemilaminectomy
#8
J Fenn, E Laber, K Williams, C A Rousse, P J Early, C L Mariani, K R Muñana, S De Decker, H A Volk, N J Olby
BACKGROUND: Outcome of acute experimental spinal cord injury is strongly associated with tissue perfusion and oxygenation. Cardiopulmonary depression could affect outcome in dogs undergoing general anesthesia for surgical treatment of thoracolumbar intervertebral disk extrusion (IVDE). HYPOTHESIS/OBJECTIVES: To evaluate the effects of general anesthesia on functional outcome in dogs undergoing surgery to treat thoracolumbar IVDE. ANIMALS: Eighty-four client-owned dogs with acute thoracolumbar IVDE treated by decompressive hemilaminectomy...
March 13, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28275619/extracorporeal-membrane-oxygenation-in-the-pre-and-post-lung-transplant-period
#9
REVIEW
Nirmal S Sharma, Mathew G Hartwig, Don Hayes
Evolution in technology has resulted in rapid increase in utilization of extracorporeal membrane oxygenation (ECMO) as a bridge to recovery and/or transplantation. Although there is limited evidence for the use of ECMO, recent improvements in ECMO technology, personnel training, ambulatory practices on ECMO and lung protective strategies have resulted in improved outcomes in patients bridged to lung transplantation. This review provides an insight into the current outcomes and best practices for utilization of ECMO in the pre- and post-lung transplantation period...
February 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28214493/the-value-of-near-infrared-spectroscopy-for-the-assessment-of-calf-muscle-function-in-venous-patients
#10
Spyros N Vasdekis, Ioannis Tzemailas, Constantine N Antonopoulos, Sotiria Mastoraki, George K Mantas, Andreas Lazaris
OBJECTIVE: Near-infrared spectroscopy (NIRS) is a noninvasive technique with the potential to determine the degree of tissue oxygenation. The aim of the current study was to investigate the use of NIRS as a reliable method of detecting calf muscle pump dysfunction in groups of patients with venous disease. METHODS: Patients with superficial venous insufficiency (SVI) or history of deep venous thrombosis (DVT) were classified according to the comprehensive classification system for chronic venous disorders (clinical class, etiology, anatomy, and pathophysiology) and compared with controls (GROUP variable)...
March 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28199748/daylight-photodynamic-therapy-with-methylene-blue-in-plane-warts-a-randomized-double-blind-placebo-controlled-study
#11
G Fathy, M K Asaad, H M Rashid
Photodynamic therapy (PDT) is a technique that utilizes reactive oxygen species produced by a non-toxic dye or photosensitizer molecule in the presence of low intensity visible light to kill mammalian or microbial cells ((1)) . The advantages of PDT are numerous, it is a safe, non-invasive technique which yields effective therapeutic results ((2)) . Photodynamic therapy is not free of adverse effects. The most common one is pain during illumination. With the use of portable light sources to optimize the procedure and facilitate outpatient treatment, the concept of ambulatory PDT has emerged...
February 15, 2017: Photodermatology, Photoimmunology & Photomedicine
https://www.readbyqxmd.com/read/28166699/planhab-study-assessment-of-psycho-neuroendocrine-function-in-male-subjects-during-21%C3%A2-d-of-normobaric-hypoxia-and-bed-rest
#12
C Strewe, R Zeller, M Feuerecker, M Hoerl, I Kumprej, A Crispin, B Johannes, T Debevec, I Mekjavic, G Schelling, A Choukèr
Immobilization and hypoxemia are conditions often seen in patients suffering from severe heart insufficiency or primary pulmonary diseases (e.g. fibrosis, emphysema). In future planned long-duration and exploration class space missions (including habitats on the moon and Mars), healthy individuals will encounter such a combination of reduced physical activity and oxygen tension by way of technical reasons and the reduced gravitational forces. These overall unconventional extraterrestrial conditions can result in yet unknown consequences for the regulation of stress-permissive, psycho-neuroendocrine responses, which warrant appropriate measures in order to mitigate foreseeable risks...
March 5, 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/28142139/long-term-oxygen-therapy-comparison-of-the-german-and-british-guidelines
#13
Friederike Sophie Magnet, Sarah Bettina Schwarz, Jens Callegari, Carl-Peter Criée, Jan Hendrik Storre, Wolfram Windisch
BACKGROUND: The German guideline on long-term oxygen therapy (LTOT) was published in 2008 by the German Respiratory Society (DGP), while the British Thoracic Society (BTS) published their most recent guideline in 2015. OBJECTIVES: The aim of the present article was to highlight the major areas of consensus and disagreement in the recently published BTS and DGP guidelines on LTOT. METHODS: The BTS and DGP guidelines were directly compared in terms of congruencies and differences...
2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28116924/oxygen-therapy-devices-and-portable-ventilators-for-improved-physical-activity-in-daily-life-in-patients-with-chronic-respiratory-disease
#14
REVIEW
Karina Couto Furlanetto, Fabio Pitta
Patients with hypoxemia and chronic respiratory failure may need to use oxygen therapy to correct hypoxemia and to use ventilatory support to augment alveolar ventilation, reverse abnormalities in blood gases (in particular hypercapnia) and reduce the work of breathing. Areas covered: This narrative review provides an overview on the use of oxygen therapy devices or portable ventilators for improved physical activity in daily life (PADL) as well as discusses the issue of lower mobility in daily life among stable patients with chronic respiratory disease who present indication for long-term oxygen therapy (LTOT) or home-based noninvasive ventilation (NIV)...
February 2017: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/28113791/a-robust-motion-artifact-detection-algorithm-for-accurate-detection-of-heart-rates-from-photoplethysmographic-signals-using-time-frequency-spectral-features
#15
Duy Dao, S M A Salehizadeh, Yeon Noj, Jo Woon Chong, Chae Cho, Dave Mcmanus, Chad E Darling, Yitzhak Mendelson, Ki H Chon
Motion and noise artifacts (MNAs) impose limits on the usability of the photoplethysmogram (PPG), particularly in the context of ambulatory monitoring. MNAs can distort PPG, causing erroneous estimation of physiological parameters such as heart rate (HR) and arterial oxygen saturation (SpO2). In this study we present a novel approach, "TifMA," based on using the Time-frequency spectrum of PPG to first detect the MNA-corrupted data and next discard the non-usable part of the corrupted data. The term "non-usable" refers to segments of PPG data from which the HR signal cannot be recovered accurately...
October 21, 2016: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28105685/evolution-of-gas-permeable-membranes-for-extracorporeal-membrane-oxygenation
#16
REVIEW
Torin Yeager, Shuvo Roy
Gas permeable membranes are a vital component of extracorporeal membrane oxygenation systems. Over more than half a century, membrane fabrication and packaging technology have progressed to enable safer and longer duration use of respiratory life support. Current research efforts seek to improve membrane efficiency and hemocompatibility, with the aim of producing smaller and more robust systems for ambulatory use. This review explores past and present innovations in oxygenator technology, suggesting possible applications of state-of-the-art membrane fabrication methods to address shortcomings of earlier concepts...
January 19, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28104101/preventing-hospitalizations-from-acute-exacerbations-of-chronic-obstructive-pulmonary-disease
#17
REVIEW
Jessica E Burchette, G Douglas Campbell, Stephen A Geraci
Chronic obstructive lung disease is among the leading causes of adult hospital admissions and readmissions in the United States. Preventing acute exacerbations is the primary approach in therapy. Combinations of smoking cessation, pulmonary rehabilitation, vaccinations and inhaled and oral medications may all reduce the overall risk of acute exacerbations. When prevention is unsuccessful, treatment of exacerbations often does not require hospitalization but can be safely executed in the outpatient setting. In the patient who does not require mechanical ventilation or who manifests respiratory acidosis, oxygen supplementation, frequent short-acting inhaled bronchodilators, oral corticosteroids and often antibiotics can abort the decompensation and sometimes return the patient to his or her pre-attack baseline lung function...
January 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28104016/-effect-of-the-obstructive-sleep-apnea-hypopnea-syndrome-treatment-on-blood-pressure-in-patients-with-resistant-hypertension
#18
H W Wang, H M Liu, Z Y Zheng, Y Z Jia, H R Li
Objective: To investigate the effect of the treatments for obstructive sleep apnea hypopnea syndrome (OSAHS) on the resistant hypertension (RH) of patients. Methods: Eighty patients with OSAHS and RH (blood pressure could not be controlled under 140/90 mmHg (1 mmHg=0.133 kPa) even with more than three kinds of antihypertensive drugs including diuretics) received surgery or continuous positive airway pressure (CPAP) treatment. The results of polysomnography monitoring, ambulatory blood pressure monitoring, and the dosage of antihypertensive medication were recorded before and six months after the treatment...
January 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28070916/non-invasive-assessment-of-muscle-oxygenation-may-aid-in-optimising-transfusion-threshold-decisions-in-ambulatory-paediatric-patients
#19
K A Schenkman, D S Hawkins, W A Ciesielski, M Delaney, L S L Arakaki
OBJECTIVE: To assess the potential utility of a novel non-invasive muscle oxygen measurement to determine the presence of muscle hypoxia in patients with anaemia. BACKGROUND: Recent assessment of the risk/benefit ratio of blood transfusion has led to clinical strategies optimising transfusion decisions. These decisions are primarily based on haematocrit (Hct) but not oxygen delivery, the primary function of red blood cells (RBCs). We hypothesised that muscle oxygenation (MOx) would correlate with Hct in patients with anaemia and may be a physiologically relevant determinant of the transfusion threshold...
February 2017: Transfusion Medicine
https://www.readbyqxmd.com/read/28066524/bioenergetic-differences-during-walking-and-running-in-transfemoral-amputee-runners-using-articulating-and-non-articulating-knee-prostheses
#20
M Jason Highsmith, Jason T Kahle, Rebecca M Miro, Larry J Mengelkoch
Transfemoral amputation (TFA) patients require considerably more energy to walk and run than non-amputees. The purpose of this study was to examine potential bioenergetic differences (oxygen uptake (VO2), heart rate (HR), and ratings of perceived exertion (RPE)) for TFA patients utilizing a conventional running prosthesis with an articulating knee mechanism versus a running prosthesis with a non-articulating knee joint. Four trained TFA runners (n = 4) were accommodated to and tested with both conditions. VO2 and HR were significantly lower (p ≤ 0...
September 2016: Technology and Innovation
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