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https://www.readbyqxmd.com/read/27931056/-guideline-s2k-awmf-of-the-deutsche-gesellschaft-f%C3%A3-r-pneumologie-und-beatmungsmedizin-and-the-deutsche-gesellschaft-f%C3%A3-r-arbeitsmedizin-und-umweltmedizin-diagnostics-and-expert-opinion-in-the-occupational-disease-no-4101-silicosis-including-coal-worker-s-pneumoconiosis
#1
X Baur, M Heger, R M Bohle, K G Hering, K Hofmann-Preiß, D Nowak, A Tannapfel, H Teschler, T Voshaar, T Kraus
During the last 1.5 years an update of the guideline on silicosis was made by an interdisciplinary working group. New medical and scientific knowledge and the experience in expert opinion practice were taken into account.By preparing the initial guideline in 2010 standardization of diagnostics and adaption of the "Moers convention" which was not based on medical knowledge was in the focus, whereas the current update deals with fine emendation and extension, especially of the compensation rate (adaption with the Reichenhall recommendation)...
December 2016: Pneumologie
https://www.readbyqxmd.com/read/27920514/usefulness-of-the-6-minute-walk-test-as-a-screening-test-for-pulmonary-arterial-enlargement-in-copd
#2
Yutaro Oki, Masahiro Kaneko, Yukari Fujimoto, Hideki Sakai, Shogo Misu, Yuji Mitani, Takumi Yamaguchi, Hisafumi Yasuda, Akira Ishikawa
PURPOSE: Pulmonary hypertension and exercise-induced oxygen desaturation (EID) influence acute exacerbation of COPD. Computed tomography (CT)-detected pulmonary artery (PA) enlargement is independently associated with acute COPD exacerbations. Associations between PA to aorta (PA:A) ratio and EID in patients with COPD have not been reported. We hypothesized that the PA:A ratio correlated with EID and that results of the 6-minute walk test (6MWT) would be useful for predicting the risk associated with PA:A >1...
2016: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/27901314/effects-of-hypoxia-and-hypercapnic-hypoxia-on-oxygen-transport-and-acid-base-status-in-the-atlantic-blue-crab-callinectes-sapidus-during-exercise
#3
Mark P Lehtonen, Louis E Burnett
The responses of estuarine invertebrates to hypoxic conditions are well established. However, many studies have investigated hypoxia as an isolated condition despite its frequent co-occurrence with hypercapnia (elevated CO2 ). Although many studies suggest deleterious effects, hypercapnia has been observed to improve blue crab walking performance in hypoxia. To investigate the physiological effects of combined hypercapnic hypoxia, we measured Po2 , pH, [l-lactate], Pco2 , and total O2 in pre- and postbranchial hemolymph sampled from blue crabs during walking exercise...
November 30, 2016: Journal of Experimental Zoology. Part A, Ecological Genetics and Physiology
https://www.readbyqxmd.com/read/27895999/quantifying-the-effect-of-adipose-tissue-in-muscle-oximetry-by-near-infrared-spectroscopy
#4
Nassim Nasseri, Stefan Kleiser, Daniel Ostojic, Tanja Karen, Martin Wolf
Change of muscle tissue oxygen saturation (StO2), due to exercise, measured by near infrared spectroscopy (NIRS) is known to be lower for subjects with higher adipose tissue thickness. This is most likely not physiological but caused by the superficial fat and adipose tissue. In this paper we assessed, in vitro, the influence of adipose tissue thickness on muscle StO2, measured by NIRS oximeters. We measured StO2 of a liquid phantom by 3 continuous wave (CW) oximeters (Sensmart Model X-100 Universal Oximetry System, INVOS 5100C, and OxyPrem v1...
November 1, 2016: Biomedical Optics Express
https://www.readbyqxmd.com/read/27872897/physiotherapy-practice-patterns-for-management-of-patients-undergoing-thoracic-surgeries-in-india-a-survey
#5
Sagarika Sultanpuram, Gopala Krishna Alaparthi, Shyam Krishnan Krishnakumar, Zulfeequer C P Ottayil
Aim. The aim of the current study is to determine the practice patterns of physiotherapists for patients undergoing thoracic surgeries in India. Materials and Methodology. A cross-sectional survey was conducted across India in which 600 questionnaires were sent in emails to physiotherapists. The questionnaire addressed assessment and treatment techniques of thoracic surgery. Results. A total of 234 completed questionnaires were returned with a response rate of 39%, with the majority of responses received from Telangana, Karnataka, and Andhra Pradesh...
2016: Surgery Research and Practice
https://www.readbyqxmd.com/read/27867696/quantification-of-extra-cerebral-and-cerebral-hemoglobin-concentrations-during-physical-exercise-using-time-domain-near-infrared-spectroscopy
#6
Héloïse Auger, Louis Bherer, Étienne Boucher, Richard Hoge, Frédéric Lesage, Mathieu Dehaes
Fitness is known to have beneficial effects on brain anatomy and function. However, the understanding of mechanisms underlying immediate and long-term neurophysiological changes due to exercise is currently incomplete due to the lack of tools to investigate brain function during physical activity. In this study, we used time-domain near infrared spectroscopy (TD-NIRS) to quantify and discriminate extra-cerebral and cerebral hemoglobin concentrations and oxygen saturation (SO2) in young adults at rest and during incremental intensity exercise...
October 1, 2016: Biomedical Optics Express
https://www.readbyqxmd.com/read/27830924/effects-of-yogic-exercises-on-functional-capacity-lung-function-and-quality-of-life-in-participants-with-obstructive-pulmonary-disease-a-randomized-controlled-study
#7
Marian E Papp, Petra Lindfors, Per E Wandell, Malin Nygren-Bonnier
BACKGROUND: Knowledge of hatha yogic exercises, the most used yoga style, for increasing functional capacity in patients with obstructive pulmonary diseases remains limited. AIM: The aim was to evaluate the effects and feasibility of hatha yoga (HY) compared to a conventional training program (CTP) on functional capacity, lung function and quality of life in patients with obstructive pulmonary diseases. DESIGN: RCT (randomized clinical trial)...
November 10, 2016: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27798935/effects-of-maternal-valium-administration-on-fetal-mri-motion-artifact-a-comparison-study-at-high-altitude
#8
Mariana L Meyers, David M Mirsky, Kimberly A Dannull, Suhong Tong, Timothy M Crombleholme
PURPOSE: Fetal MRI is performed without sedation. In cases of maternal claustrophobia or when reduction of fetal motion is critical, benzodiazepines may help. The purpose of this study was to evaluate the effects of low-dose benzodiazepine on fetal motion MRI and its effect on maternal oxygen levels at higher elevation. METHODS: A total of 131 fetal MRI scans performed from March 2012 through December 2013 were studied. Nineteen of the cases were performed following Valium administration...
November 1, 2016: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/27798357/muscle-oxygenation-during-dynamic-plantar-flexion-exercise-combining-bold-mri-with-traditional-physiological-measurements
#9
Matthew D Muller, Zhijun Li, Christopher T Sica, J Carter Luck, Zhaohui Gao, Cheryl A Blaha, Aimee E Cauffman, Amanda J Ross, Nathan J R Winkler, Michael D Herr, Kristen Brandt, Jianli Wang, David C Gallagher, Prasanna Karunanayaka, Jeffrey Vesek, Urs A Leuenberger, Qing X Yang, Lawrence I Sinoway
Blood-oxygen-level-dependent magnetic resonance imaging (BOLD MRI) has the potential to quantify skeletal muscle oxygenation with high temporal and high spatial resolution. The purpose of this study was to characterize skeletal muscle BOLD responses during steady-state plantar flexion exercise (i.e., during the brief rest periods between muscle contraction). We used three different imaging modalities (ultrasound of the popliteal artery, BOLD MRI, and near-infrared spectroscopy [NIRS]) and two different exercise intensities (2 and 6 kg)...
October 2016: Physiological Reports
https://www.readbyqxmd.com/read/27794080/automatic-oxygen-titration-during-walking-in-subjects-with-copd-a-randomized-crossover-controlled-study
#10
François Lellouche, Erwan L'Her, Pierre-Alexandre Bouchard, Cynthia Brouillard, François Maltais
BACKGROUND: Arterial oxygen desaturation frequently occurs in patients with COPD during daily activities at home. Oxygen flow is usually set at fixed and low rates for ambulatory patients. We evaluated an innovative closed-loop system (FreeO2) that automatically adjusts the oxygen flow to the patient's needs in subjects with COPD during walking followed by recovery time, such as during ambulatory conditions. METHODS: Patients with COPD who exhibited oxygen desaturation on exertion were included in the study...
November 2016: Respiratory Care
https://www.readbyqxmd.com/read/27784412/exercise-occupational-activity-and-risk-of-sleep-apnea-a-cross-sectional-study
#11
Roberto P da Silva, Denis Martinez, Martina M Pedroso, Camila G Righi, Emerson F Martins, Leticia M T Silva, Maria do Carmo S Lenz, Cintia Z Fiori
STUDY OBJECTIVE: To investigate whether structured exercise and occupational activity are associated with obstructive sleep apnea (OSA) severity. METHODS: The International Physical Activity Questionnaire was answered by 5,453 individuals who underwent full-night polysomnography. Participants were classified as exercisers or non-exercisers and also as occupationally active or non-active. The apnea-hypopnea index (AHI), minimum oxygen saturation (SaO2min), and time with saturation below 90% (TB90%) during polysomnography were used as indicators of OSA severity...
October 20, 2016: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/27783918/a-randomized-trial-of-long-term-oxygen-for-copd-with-moderate-desaturation
#12
(no author information available yet)
Background Long-term treatment with supplemental oxygen has unknown efficacy in patients with stable chronic obstructive pulmonary disease (COPD) and resting or exercise-induced moderate desaturation. Methods We originally designed the trial to test whether long-term treatment with supplemental oxygen would result in a longer time to death than no use of supplemental oxygen among patients who had stable COPD with moderate resting desaturation (oxyhemoglobin saturation as measured by pulse oximetry [Spo2], 89 to 93%)...
October 27, 2016: New England Journal of Medicine
https://www.readbyqxmd.com/read/27747789/hyperoxia-extends-time-to-exhaustion-during-high-intensity-intermittent-exercise-a-randomized-crossover-study-in-male-cyclists
#13
Toshiyuki Ohya, Ryo Yamanaka, Hayato Ohnuma, Masahiro Hagiwara, Yasuhiro Suzuki
BACKGROUND: Some endurance athletes exhibit exercise-induced arterial hypoxemia during high-intensity exercise. Inhalation of hyperoxic gas during exercise has been shown to counteract this exercise-associated reduction in hemoglobin oxygen saturation (SaO2), but the effects of hyperoxic gas inhalation on performance and SaO2 during high-intensity intermittent exercise remain unclear. This study investigated the effects of hyperoxic gas inhalation on performance and SaO2 during high-intensity intermittent cycling exercise...
December 2016: Sports Medicine—Open
https://www.readbyqxmd.com/read/27722775/impairments-in-microvascular-function-and-skeletal-muscle-oxygenation-in-women-with-gestational-diabetes-mellitus-links-to-cardiovascular-disease-risk-factors
#14
Konstantina Dipla, Areti Triantafyllou, Iris Grigoriadou, Evangelia Kintiraki, Georgios A Triantafyllou, Pavlos Poulios, Ioannis S Vrabas, Andreas Zafeiridis, Stella Douma, Dimitrios G Goulis
AIMS/HYPOTHESIS: Gestational diabetes mellitus (GDM) is a risk factor for the development of endothelial dysfunction and cardiovascular disease. However, in vivo microvascular endothelial function in GDM has not been investigated. This study aimed to examine, using near-infrared spectroscopy (NIRS), whether: (1) there are differences in microvascular reactivity and skeletal muscle oxygen consumption (m[Formula: see text]) at rest and during exercise between GDM and uncomplicated pregnancies; and (2) there is an association of NIRS indices with macrovascular function and cardiovascular disease risk factors...
January 2017: Diabetologia
https://www.readbyqxmd.com/read/27707847/cardiopulmonary-exercise-testing-in-patients-with-idiopathic-scoliosis
#15
Jianxiong Shen, Youxi Lin, Jinmei Luo, Yi Xiao
BACKGROUND: Scoliosis causes impairment of the respiratory and cardiovascular systems. Traditional pulmonary function tests only examine patients under static conditions. The aim of our study was to investigate the correlation between radiographic parameters and dynamic cardiopulmonary capacity in patients with idiopathic scoliosis. METHODS: Forty patients with idiopathic scoliosis were included in this prospective study from January 2014 to February 2016. The patients underwent full radiographic assessment of deformity, pulmonary function testing, and cardiopulmonary bicycle ergometer testing...
October 5, 2016: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/27701422/differential-responses-of-post-exercise-recovery-of-leg-blood-flow-and-oxygen-uptake-kinetics-in-hfpef-versus-hfref
#16
Richard B Thompson, Joseph J Pagano, Kory W Mathewson, Ian Paterson, Jason R Dyck, Dalane W Kitzman, Mark J Haykowsky
The goals of the current study were to compare leg blood flow, oxygen extraction and oxygen uptake (VO2) after constant load sub-maximal unilateral knee extension (ULKE) exercise in patients with heart failure with reduced ejection fraction (HFrEF) compared to those with preserved ejection fraction (HFpEF). Previously, it has been shown that prolonged whole body VO2 recovery kinetics are directly related to disease severity and all-cause mortality in HFrEF patients. To date, no study has simultaneously measured muscle-specific blood flow and oxygen extraction post exercise recovery kinetics in HFrEF or HFpEF patients; therefore it is unknown if muscle VO2 recovery kinetics, and more specifically, the recovery kinetics of blood flow and oxygen extraction at the level of the muscle, differ between HF phenotypes...
2016: PloS One
https://www.readbyqxmd.com/read/27701156/improving-peripheral-and-central-vascular-adjustments-during-exercise-through-a-training-program-in-adolescents-with-obesity
#17
Valérie Julian, David Thivel, Bruno Pereira, Frédéric Costes, Ruddy Richard, Martine Duclos
OBJECTIVE: The effects of a training program (TP) on muscle microvascularization during exercise remained to be explored in adolescents with obesity. We hypothesized that a TP would lead to better microvascular adaptations to exercise in skeletal muscle. METHODS: 15 inactive adolescents followed a 12-week TP where both peripheral (muscular microvascularization) and central (cardiac) adaptations to exercise (40 min exercise set at 70% V̇O2peak) were assessed before and after intervention...
October 4, 2016: Obesity Facts
https://www.readbyqxmd.com/read/27692154/determinants-of-exercise-induced-oxygen-desaturation-including-pulmonary-emphysema-in-copd-results-from-the-eclipse-study
#18
Vasileios Andrianopoulos, Bartolome R Celli, Frits M E Franssen, Victor M Pinto-Plata, Peter M A Calverley, Lowie E G W Vanfleteren, Ioannis Vogiatzis, Jørgen Vestbo, Alvar Agusti, Per S Bakke, Stephen I Rennard, William MacNee, Ruth Tal-Singer, Julie C Yates, Emiel F M Wouters, Martijn A Spruit
Exercise-induced oxygen desaturation (EID) is related to mortality in patients with chronic obstructive pulmonary disease (COPD). We investigated: (1) the prevalence of EID; (2) the relative-weight of several physiological determinants of EID including pulmonary emphysema, and (3) the relationship of EID with certain patients' clinical characteristics. Data from 2050 COPD patients (age: 63.3 ± 7.1years; FEV1: 48.7 ± 15.7%pred.) were analyzed. The occurrence of EID (SpO2post ≤88%) at the six-minute walking test (6MWT) was investigated in association with emphysema quantified by computed-tomography (QCT), and several clinical characteristics...
October 2016: Respiratory Medicine
https://www.readbyqxmd.com/read/27662491/acute-physiological-responses-to-moderate-load-resistance-exercise-in-hypoxia
#19
Brendan R Scott, Katie M Slattery, Dean V Sculley, Catriona Lockhart, Ben J Dascombe
This study assessed whether hypoxia augments anabolic responses to moderate-load resistance exercise. Fourteen trained males performed moderate-load resistance exercise in normoxia (NORM; fraction of inspired oxygen [FIO2] = 21%) and moderate-level hypoxia (MH; FIO2 = 16%). Exercise comprised 3 sets of 10 repetitions of squats and deadlifts at 60% of 1-repetition maximum, with 60 s inter-set rest. Blood lactate (BLa) was quantified after each exercise, while arterial oxygen saturation (SpO2) and heart rate (HR) were assessed following each set...
September 20, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27661546/-effects-of-a-resistance-training-program-in-patients-with-chronic-kidney-disease-on-hemodialysis
#20
Igor Cigarroa, Rodrigo Barriga, Camila Michéas, Rafael Zapata-Lamana, Claudio Soto, Tomas Manukian
BACKGROUND: Exercise may be a therapeutic tool for improving the functional capacity in patients with chronic kidney disease (CKD) who are on hemodialysis (HD). AIM: To determine the effects on muscle strength (MS), functional capacity (FC) and quality of life related to health (QOLRH) of a resistance training program in patients with CKD on HD. PATIENTS AND METHODS: Thirteen CKD patients aged 38.8 ± 3 years, (7 men) on HD for more than one year participated in an exercise program twice a week during 8 weeks...
July 2016: Revista Médica de Chile
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