keyword
MENU ▼
Read by QxMD icon Read
search

Breath test

keyword
https://www.readbyqxmd.com/read/28635614/advanced-treatment-planning-using-direct-4d-optimisation-for-pencil-beam-scanned-particle-therapy
#1
Kinga Bernatowicz, Ye Zhang, Rosalind Lucy Perrin, Damien Charles Weber, Antony John Lomax
We report on development of a new four-dimensional (4D) optimisation approach for scanned proton beams, which incorporates both irregular motion patterns and the delivery dynamics of the treatment machine into the plan optimiser. Furthermore, we assess the effectiveness of this technique to reduce dose to critical structures in proximity to moving targets, while maintaining effective target dose homogeneity and coverage. The proposed approach has been tested using both a simulated phantom and a clinical liver cancer case, and allows for realistic 4D calculations and optimisation using irregular breathing patterns extracted from e...
June 21, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28634728/aroma-oil-therapy-in-palliative-care-a-pilot-study-with-physiological-parameters-in-conscious-as-well-as-unconscious-patients
#2
Melanie Goepfert, Patrick Liebl, Natalie Herth, Giancarlo Ciarlo, Jens Buentzel, Jutta Huebner
OBJECTIVE: The aim of this pilot study is to analyze the reactions of healthy test persons and conscious as well as unconscious palliative patients to aroma stimuli. PATIENTS AND METHODS: In a randomized controlled study, healthy probands, conscious and unconscious palliative patients were exposed to two essential oils (lemon, lavender). Water was used as the control stimulus. Physiological parameters (breathing rate and heart rate, oxygen saturation, systolic, diastolic and mean arterial pressure) were measured...
June 20, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28634613/breathing-induced-new-phase-transition-in-an-mil-53-al-nh2-metal-organic-framework-under-high-methane-pressures
#3
Linius Bolinois, Tanay Kundu, Xuerui Wang, Yuxiang Wang, Zhigang Hu, Kenny Koh, Dan Zhao
The high pressure methane sorption tests on a flexible metal-organic framework [MIL-53(Al)-NH2] reveal a new phase transition to a large pore (lp) phase above 45 bar. The mixed-ligand strategy and pressure cycling tests are suggested to reduce the pressure requirement of such a phase transition for applications in natural gas storage.
June 21, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28634497/weighted-polynomial-approximation-for-automated-detection-of-inspiratory-flow-limitation
#4
Sheng-Cheng Huang, Hao-Yu Jan, Tieh-Cheng Fu, Wen-Chen Lin, Geng-Hong Lin, Wen-Chi Lin, Cheng-Lun Tsai, Kang-Ping Lin
Inspiratory flow limitation (IFL) is a critical symptom of sleep breathing disorders. A characteristic flattened flow-time curve indicates the presence of highest resistance flow limitation. This study involved investigating a real-time algorithm for detecting IFL during sleep. Three categories of inspiratory flow shape were collected from previous studies for use as a development set. Of these, 16 cases were labeled as non-IFL and 78 as IFL which were further categorized into minor level (20 cases) and severe level (58 cases) of obstruction...
2017: Computational and Mathematical Methods in Medicine
https://www.readbyqxmd.com/read/28633671/preliminary-safety-and-efficacy-profile-of-prucalopride-in-the-treatment-of-systemic-sclerosis-ssc-related-intestinal-involvement-results-from-the-open-label-cross-over-progass-study
#5
Barbara Vigone, Monica Caronni, Adriana Severino, Chiara Bellocchi, Anna Rita Baldassarri, Mirella Fraquelli, Gaia Montanelli, Alessandro Santaniello, Lorenzo Beretta
BACKGROUND: Prokinetics are used to treat enteric dismotility symptoms in systemic sclerosis (SSc) patients, but they often lack adequate efficacy. The most effective prokinetics belonging to the serotonin (5-HT4) receptor agonists class were withdrawn due to cardiac toxicity in relation to modest 5-HT4 receptor affinity. Prucalopride is a high-affinity 5-HT4 receptor agonist with no major cardiac issues, for which the efficacy in SSc has not yet been assessed. METHODS: Forty patients with self-reported mild to moderately severe enteric symptoms were enrolled in a cross-over 2 × 2 study...
June 20, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28632529/respiratory-system-mechanics-during-low-versus-high-positive-end-expiratory-pressure-in-open-abdominal-surgery-a-substudy-of-provhilo-randomized-controlled-trial
#6
Davide D'Antini, Robert Huhle, Jacob Herrmann, Demet S Sulemanji, Jun Oto, Pasquale Raimondo, Lucia Mirabella, Sabrine N T Hemmes, Marcus J Schultz, Paolo Pelosi, David W Kaczka, Marcos Francisco Vidal Melo, Marcelo Gama de Abreu, Gilda Cinnella
BACKGROUND: In the 2014 PROtective Ventilation using HIgh versus LOw positive end-expiratory pressure (PROVHILO) trial, intraoperative low tidal volume ventilation with high positive end-expiratory pressure (PEEP = 12 cm H2O) and lung recruitment maneuvers did not decrease postoperative pulmonary complications when compared to low PEEP (0-2 cm H2O) approach without recruitment breaths. However, effects of intraoperative PEEP on lung compliance remain poorly understood. We hypothesized that higher PEEP leads to a dominance of intratidal overdistension, whereas lower PEEP results in intratidal recruitment/derecruitment (R/D)...
June 19, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28628009/-immunorehabilitology-a-look-from-the-sources-to-the-future-from-immunotherapy-to-personalized-targeted-immunorehablitation
#7
R Sepiashvili
Development and introduction of modern clinical diagnostic tests (that allow to evaluate the functional system of immune homeostasis) into medical practice, a huge body of evidence on the leading role of the immune system in pathogenesis most acute and chronic diseases and even identification of specific nosological forms of immune-mediated diseases forced the scientists to search and develop new tools and techniques that have therapeutic effects on the impaired immune homeostasis and restore it to the normal state...
May 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28627036/validation-of-masks-for-determination-of-v%C3%AC-o2-max-in-horses-exercising-at-high-intensity
#8
R H Sides, R Kirkpatrick, E Renner, K Gough, L M Katz, D L Evans, W M Bayly
BACKGROUND: The need for a horse to be ridden while wearing a measurement device that allows unrestricted ventilation and gas exchange has hampered accurate measurement of its maximal oxygen consumption (V̇O2 max) under field conditions. OBJECTIVES: Design and validate a facemask with the potential to accurately measure V̇O2 max in the field. STUDY DESIGN: Experiment with 6 x 6 Latin square design. METHODS: Two variations of a mask and associated electronic control module (ECM) were designed to enable breath-by-breath measurement of airflows through two 7...
June 19, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28626990/exhaled-breath-profiles-in-the-monitoring-of-loss-of-control-and-clinical-recovery-in-asthma
#9
Paul Brinkman, Marianne A van de Pol, Marije G Gerritsen, Lieuwe D Bos, Tamara Dekker, Barbara S Smids, Anirban Sinha, Christof J Majoor, Marlous M Sneeboer, Hugo H Knobel, Teunis J Vink, Frans H de Jongh, René Lutter, Peter J Sterk, Niki Fens
BACKGROUND: Asthma is a chronic inflammatory airway disease, associated with episodes of exacerbations. Therapy with inhaled corticosteroids (ICS) targets airway inflammation, which aims to maintain and restore asthma control. Clinical features are only modestly associated with airways inflammation. Therefore, we hypothesized that exhaled volatile metabolites identify longitudinal changes between clinically stable episodes and loss of asthma control. OBJECTIVES: To determine whether exhaled volatile organic compounds (VOCs) as measured by gas-chromatography / mass-spectrometry (GC/MS) and electronic nose (eNose) technology discriminate between clinically stable and unstable episodes of asthma...
June 19, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28626873/assessing-prefrontal-cortex-oxygenation-after-sport-concussion-with-near-infrared-spectroscopy
#10
Scott A Bishop, J Patrick Neary
BACKGROUND: Clinicians typically rely on neuropsychological and balance tests to track concussion recovery. The aforementioned tests imply impairments that are based on performance, but these tests do not directly measure brain physiology throughout concussion recovery. Because of these issues, an objective biomarker that can index severity and the recovery timeline is needed. Moreover, the number of concussions occurring at a recreational level requires the biomarker to be easily administered in a cost effective manner, and the results easily interpreted...
June 18, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/28626434/the-effect-of-diaphragmatic-breathing-on-attention-negative-affect-and-stress-in-healthy-adults
#11
Xiao Ma, Zi-Qi Yue, Zhu-Qing Gong, Hong Zhang, Nai-Yue Duan, Yu-Tong Shi, Gao-Xia Wei, You-Fa Li
A growing number of empirical studies have revealed that diaphragmatic breathing may trigger body relaxation responses and benefit both physical and mental health. However, the specific benefits of diaphragmatic breathing on mental health remain largely unknown. The present study aimed to investigate the effect of diaphragmatic breathing on cognition, affect, and cortisol responses to stress. Forty participants were randomly assigned to either a breathing intervention group (BIG) or a control group (CG). The BIG received intensive training for 20 sessions, implemented over 8 weeks, employing a real-time feedback device, and an average respiratory rate of 4 breaths/min, while the CG did not receive this treatment...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28624698/brief-mindfulness-training-de-couples-the-anxiogenic-effects-of-distress-intolerance-on-reactivity-to-and-recovery-from-stress-among-deprived-smokers
#12
Rotem Paz, Ariel Zvielli, Pavel Goldstein, Amit Bernstein
OBJECTIVE: We tested whether mindfulness de-couples the expected anxiogenic effects of distress intolerance on psychological and physiological reactivity to and recovery from an anxiogenic stressor among participants experimentally sensitized to experience distress. METHOD: N = 104 daily smokers underwent 18-hours of biochemically-verified smoking deprivation. Participants were then randomized to a 7-min analogue mindfulness intervention (present moment attention and awareness training; PMAA) or a cope-as-usual control condition; and subsequently exposed to a 2...
June 2, 2017: Behaviour Research and Therapy
https://www.readbyqxmd.com/read/28624018/difference-in-the-craniocaudal-gradient-of-the-maximum-pixel-value-change-rate-between-chronic-obstructive-pulmonary-disease-patients-and-normal-subjects-using-sub-mgy-dynamic-chest-radiography-with-a-flat-panel-detector-system
#13
Yoshitake Yamada, Masako Ueyama, Takehiko Abe, Tetsuro Araki, Takayuki Abe, Mizuki Nishino, Masahiro Jinzaki, Hiroto Hatabu, Shoji Kudoh
OBJECTIVES: To compare the craniocaudal gradients of the maximum pixel value change rate (MPCR) during tidal breathing between chronic obstructive pulmonary disease (COPD) patients and normal subjects using dynamic chest radiography. MATERIALS AND METHODS: This prospective study was approved by the institutional review board and all participants provided written informed consent. Forty-three COPD patients (mean age, 71.6±8.7 years) and 47 normal subjects (non-smoker healthy volunteers) (mean age, 54...
July 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28622248/quantitative-perfusion-analysis-of-the-rectum-using-golden-angle-radial-sparse-parallel-magnetic-resonance-imaging-initial-experience-and-comparison-to-time-resolved-angiography-with-interleaved-stochastic-trajectories
#14
Ulrike I Attenberger, Jing Liu, Philipp Riffel, Johannes Budjan, Robert Grimm, Kai T Block, Stefan O Schoenberg, Xiaoying Wang, Daniel Hausmann
OBJECTIVES: Purpose of this study was to compare the quality of perfusion maps obtained from prototypical free-breathing magnetic resonance imaging (MRI) with continuous golden-angle radial sampling and iterative reconstruction (GRASP) to conventional acquisition using time-resolved angiography with interleaved stochastic trajectories (TWIST) in patients with rectal cancer. MATERIAL AND METHODS: Forty cases were included for retrospective analysis. Twenty of the patients received routine multiparametric MRI at 3 T for rectal cancer staging, including perfusion measurement with GRASP or TWIST (10 patients for each technique, including 5 prechemoradiation and 5 postchemoradiation)...
June 16, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28622081/effects-of-inspiratory-muscle-training-in-professional-women-football-players-a-randomized-sham-controlled-trial
#15
Bruno Archiza, Daniela Kuguimoto Andaku, Flávia Cristina Rossi Caruso, José Carlos Bonjorno, Cláudio Ricardo de Oliveira, Paula Angélica Ricci, André Capaldo do Amaral, Stela Márcia Mattiello, Cleiton Augusto Libardi, Shane A Phillips, Ross Arena, Audrey Borghi-Silva
This study was conducted to determine the effects of inspiratory muscle training (IMT) on respiratory and peripheral muscles oxygenation during a maximal exercise tolerance test and on repeated-sprint ability (RSA) performance in professional women football players. Eighteen athletes were randomly assigned to one of the following groups: SHAM (n = 8) or IMT (n = 10). After a maximal incremental exercise test, all participants performed (on a different day) a time-to-exhaustion (Tlim) test. Peripheral and respiratory muscles oxygenation by near-infrared spectroscopy, breath-by-breath ventilatory and metabolic variables, and blood lactate concentration were measured...
June 16, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28621890/reference-data-for-babybody-plethysmographic-measurements-in-chinese-neonates-and-infants
#16
Gaoli Jiang, Albert Li, Libo Wang, Liling Qian, Yun Cao, Jianfeng Huang, Chengzhou Wan, Xiaobo Zhang
BACKGROUND AND OBJECTIVE: Population-specific pulmonary function reference data are essential to identify the nature and severity of respiratory diseases. However, there is a lack of reference data for Chinese neonates and infants. The objective of this study was to develop reference data for tidal breathing and plethysmographic measurements for Chinese subjects during the first 2 years of life. METHODS: Data of tidal breathing and plethysmography from healthy Chinese neonates (≤28 days) and infants (1-24 months) using the Jaeger MasterScreen BabyBody were collated...
June 16, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28620310/abdominal-binding-improves-neuromuscular-efficiency-of-the-human-diaphragm-during-exercise
#17
Sara J Abdallah, David S Chan, Robin Glicksman, Cassandra T Mendonca, Yuanming Luo, Jean Bourbeau, Benjamin M Smith, Dennis Jensen
We tested the hypothesis that elastic binding of the abdomen (AB) would enhance neuromuscular efficiency of the human diaphragm during exercise. Twelve healthy non-obese men aged 24.8 ± 1.7 years (mean ± SE) completed a symptom-limited constant-load cycle endurance exercise test at 85% of their peak incremental power output with diaphragmatic electromyography (EMGdi) and respiratory pressure measurements under two randomly assigned conditions: unbound control (CTRL) and AB sufficient to increase end-expiratory gastric pressure (Pga,ee) by 5-8 cmH2O at rest...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28620158/clinical-features-and-sleep-analysis-of-chinese-patients-with-fatal-familial-insomnia
#18
Liyong Wu, Hui Lu, Xianling Wang, Jia Liu, Chaoyang Huang, Jing Ye, Cuijiang Li, Jun Lu, Yuping Wang, Jianping Jia, Shuqin Zhan
This study aimed to examine clinical features, sleep, abnormal sleep-wake transition and non-sleep disturbances as well as lab tests in Chinese fatal familial insomnia (FFI) subjects. Patients with confirmed clinical and laboratory diagnosis of FFI have been retrospectively reviewed. The clinical features and the results of the complementary tests, including polysomnography (PSG), brain imaging and genetic analysis, were used. Two male and three female patients were recruited in this study. Three of the five patients had more comprehensive family medical records...
June 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28618745/effects-of-a-closed-system-suction-connector-on-airway-resistance-in-ventilated-neonates
#19
Sezin Ünal, Ebru Ergenekon, Ebru Kazanci, Selma Aktaş, Ferit Kulali, İbrahim Murat Hirfanoğlu, Canan Türkyilmaz, Yıldız Atalay
BACKGROUND/AIM: Increased airway resistance reduces the effectiveness of ventilation treatment. Endotracheal tubes (ETTs) and connectors contribute to resistance. However, the effect of a closed system suction (CSS) connector is not well known. We compared the in vivo resistance occurring with a CSS connector with that of the standard connector. MATERIALS AND METHODS: This prospective study was conducted at Gazi University Hospital's neonatal intensive care unit...
June 12, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28617882/eradication-rates-in-italian-subjects-heterogeneously-managed-for-helicobacter-pylori-infection-time-to-abandon-empiric-treatments-in-southern-europe
#20
Agostino Di Ciaula, Giuseppe Scaccianoce, Marino Venerito, Angelo Zullo, Leonilde Bonfrate, Theodore Rokkas, Piero Portincasa
BACKGROUND AND AIMS: H. pylori eradication is strongly affected by various factors, including the ongoing antibiotic resistance. We describe a "real life" scenario in patients managed for H. pylori-related conditions, living in a southern Italian region (Apulia), an area with clarithromycin resistance >15%. METHODS: 2,224 subjects were studied in two tertiary referral centers in Apulia. Analyses included: reason for referral, H. pylori infection rates (13C-urea breath test - UBT or upper endoscopy), and eradication rates following distinct regimens previously prescribed or prospectively prescribed (such as the bismuth-based quadruple therapy Pylera®, recently marketed in Italy)...
June 2017: Journal of Gastrointestinal and Liver Diseases: JGLD
keyword
keyword
72782
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"