keyword
MENU ▼
Read by QxMD icon Read
search

Heart variability

keyword
https://www.readbyqxmd.com/read/28645052/cardiorespiratory-responses-of-air-filtration-a-randomized-crossover-intervention-trial-in-seniors-living-in-beijing-beijing-indoor-air-purifier-study-biapsy
#1
Danqing Shao, Yipeng Du, Shuo Liu, Bert Brunekreef, Kees Meliefste, Qian Zhao, Jie Chen, Xiaoming Song, Meng Wang, Juan Wang, Hongbing Xu, Rongshan Wu, Tong Wang, Baihuan Feng, Candice Shih-Chun Lung, Xian Wang, Bei He, Wei Huang
In this Beijing Indoor Air Purifier StudY (BIAPSY), we conducted a randomized crossover intervention trial in a panel of 35 non-smoking senior participants with free-living, with and without chronic obstructive pulmonary disease (COPD). Portable air filtration units were randomly allocated to active-(filter in) for 2weeks and sham-mode (filter out) for 2weeks in the households. We examined the differences in indoor air pollutant concentrations in 20 study homes and a suite of cardio-respiratory biomarker levels in study participants between filtration modes, with and without adjustment for potential confounders...
June 20, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28643663/delivery-outcomes-of-term-pregnancy-complicated-by-idiopathic-polyhydramnios
#2
S Zeino, L Carbillon, I Pharisien, A Tigaizin, M Benchimol, R Murtada, J Boujenah
OBJECTIVE: Polyhydramnios is associated with an increased risk of cesarean section. The aetiology of polyhydramnios and the characteristics of the labour may be confounding factors. The objective was to study the characteristics and mode of delivery in case of pregnancy complicated with idiopathic polyhydramnios. METHODS: This retrospective matched and controlled study included all pregnant women with idiopathic polyhydramnios (amniotic index>25cm or single deepest pocket>8cm) diagnosed at the 2nd or 3rd trimester and persistent at term delivery (>37weeks of pregnancy) in our institution...
April 2017: Journal of gynecology obstetrics and human reproduction
https://www.readbyqxmd.com/read/28642732/autonomic-function-impairment-and-brain-perfusion-deficit-in-parkinson-s-disease
#3
Wei-Che Lin, Pei-Chin Chen, Chih-Cheng Huang, Nai-Wen Tsai, Hsiu-Ling Chen, Hung-Chen Wang, Kun-Hsien Chou, Meng-Hsiang Chen, Yi-Wen Chen, Cheng-Hsien Lu
INTRODUCTION: Autonomic disorders have been recognized as important Parkinson's disease (PD) components. Some vulnerable structures are related to the central autonomic network and have also been linked to autonomic function alterations. The aims of the study are to evaluate the severity of the autonomic dysfunction and the cortical hypoperfusion using arterial spin labeling (ASL) MRI. And then, possible relationships of significant between-group differences in perfusion pattern to clinical variables and autonomic functions were examined to determine the pharmaceutical effects of dopaminergic treatment on cerebral blood flow (CBF) in patients with PD...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28642208/assessing-the-efficacy-of-imagery-enhanced-cognitive-behavioral-group-therapy-for-social-anxiety-disorder-study-protocol-for-a-randomized-controlled-trial
#4
Peter M McEvoy, Michelle L Moulds, Jessica R Grisham, Emily A Holmes, David A Moscovitch, Delia Hendrie, Lisa M Saulsman, Ottmar V Lipp, Robert T Kane, Ronald M Rapee, Matthew P Hyett, David M Erceg-Hurn
Cognitive behavior group therapy (CBGT) is effective for social anxiety disorder (SAD), but a substantial proportion of patients do not typically achieve normative functioning. Cognitive behavioral models of SAD emphasize negative self-imagery as an important maintaining factor, and evidence suggests that imagery is a powerful cognitive mode for facilitating affective change. This study will compare two group CBGT interventions, one that predominantly uses verbally-based strategies (VB-CBGT) and another that predominantly uses imagery-enhanced strategies (IE-CBGT), in terms of (a) efficacy, (b) mechanisms of change, and (c) cost-effectiveness...
June 19, 2017: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/28641796/cardiac-sympathetic-denervation-for-refractory-ventricular-arrhythmias
#5
Marmar Vaseghi, Parag Barwad, Federico J Malavassi Corrales, Harikrishna Tandri, Nilesh Mathuria, Rushil Shah, Julie M Sorg, Jean Gima, Kaushik Mandal, Luis C Sàenz Morales, Yash Lokhandwala, Kalyanam Shivkumar
BACKGROUND: Cardiac sympathetic denervation (CSD) has been shown to reduce the burden of implantable cardioverter-defibrillator (ICD) shocks in small series of patients with structural heart disease (SHD) and recurrent ventricular tachyarrhythmias (VT). OBJECTIVES: This study assessed the value of CSD and the characteristics associated with outcomes in this population. METHODS: Patients with SHD who underwent CSD for refractory VT or VT storm at 5 international centers were analyzed by the International Cardiac Sympathetic Denervation Collaborative Group...
June 27, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28641521/lncrna-hotair-polymorphisms-association-with-cancer-susceptibility-in-different-tumor-types
#6
Gerardo Botti, Francesca Collina, Giosuè Scognamiglio, Gabriella Aquino, Margherita Cerrone, Giuseppina Liguori, Vincenzo Gigantino, Maria Gabriella Malzone, Monica Cantile
Single nucleotide polymorphisms (SNPs) in non coding RNAs (ncRNA) molecules affect gene and protein expression and generate genetic variability influencing the risk of tumor diseases. HOTAIR is locates at the heart of the cell memory gene program and represents a prototype of long non coding RNA (LncRNA) due to its capacity to regulate in-trans a distant chromosome landscape. Aberrant expression of HOTAIR is frequently associated with pathogenesis and mostly with metastatic progression of several human cancers...
June 21, 2017: Current Drug Targets
https://www.readbyqxmd.com/read/28641244/computerized-lung-sound-screening-for-pediatric-auscultation-in-noisy-field-environments
#7
Dimitra Emmanouilidou, Eric D McCollum, Daniel E Park, Mounya Elhilali
GOAL: Chest auscultations offer a non-invasive and low-cost tool for monitoring lung disease. However, they present many shortcomings including inter-listener variability, subjectivity, and vulnerability to noise and distortions. The current work proposes a computer-aided approach to process lung signals acquired in the field under adverse noisy conditions, by improving the signal quality and offering automated iden- tification of abnormal auscultations indicative of respiratory pathologies...
June 19, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28641215/worry-and-cognitive-control-predict-course-trajectories-of-anxiety-in-older-adults-with-late-life-depression
#8
P Spinhoven, D C van der Veen, R C Oude Voshaar, H C Comijs
BACKGROUND: Many older adults with depressive disorder manifest anxious distress. This longitudinal study examines the predictive value of worry as a maladaptive cognitive emotion regulation strategy, and resources necessary for successful emotion regulation (i.e., cognitive control and resting heart rate variability [HRV]) for the course of anxiety symptoms in depressed older adults. Moreover, it examines whether these emotion regulation variables moderate the impact of negative life events on severity of anxiety symptoms...
May 19, 2017: European Psychiatry: the Journal of the Association of European Psychiatrists
https://www.readbyqxmd.com/read/28640770/physiological-responses-and-time-motion-analysis-of-small-combat-games-in-kickboxing-impact-of-ring-size-and-number-of-within-round-sparring-partners
#9
Ibrahim Ouergui, Nizar Houcine, Hamza Marzouki, Philip Davis, Emerson Franchini, Nabil Gmada, Ezzedine Bouhlel
Ouergui, I, Houcine, N, Marzouki, H, Davis, P, Franchini, E, Gmada, N, and Bouhlel, E. Physiological responses and time-motion analysis of small combat games in kickboxing: impact of ring size and number of within-round sparring partners. J Strength Cond Res 31(7): 1840-1846, 2017-The study aimed to investigate the physiological responses and time-structure of small combat games (SCGs) in kickboxing according to ring sizes and number of sparring partners. Twenty athletes from regional (n = 13) and national levels (n = 7) participated in the study (mean ± SD, age: 20...
July 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28640758/consecutive-ultra-short-term-heart-rate-variability-to-track-dynamic-changes-in-autonomic-nervous-system-during-and-after-exercise
#10
Xiang Chen, Ruijie Yao, Gezhen Yin, Jin Li
OBJECTIVE: Quantitative measurement of the dynamic changes in autonomic nervous system (ANS) during and after exercise has great significance in clinical, sports training and other fields. A consecutive ultra-short-term (30 s, UST) heart rate variability (HRV) method was proposed to track the exercise-induced autonomic control of heart rate (HR). APPROACH: Twenty-three healthy young men participated in the study. The first four stages of the Modified Bruce Protocol (S0-S3) were performed...
June 22, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28640142/the-derivation-and-validation-of-a-simple-model-for-predicting-in-hospital-mortality-of-acutely-admitted-patients-to-internal-medicine-wards
#11
Ali Sakhnini, Walid Saliba, Naama Schwartz, Naiel Bisharat
Limited information is available about clinical predictors of in-hospital mortality in acute unselected medical admissions. Such information could assist medical decision-making.To develop a clinical model for predicting in-hospital mortality in unselected acute medical admissions and to test the impact of secondary conditions on hospital mortality.This is an analysis of the medical records of patients admitted to internal medicine wards at one university-affiliated hospital. Data obtained from the years 2013 to 2014 were used as a derivation dataset for creating a prediction model, while data from 2015 was used as a validation dataset to test the performance of the model...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28639533/comparison-of-clinical-efficacy-among-remifentanil-nicardipine-and-remifentanil-plus-nicardipine-continuous-infusion-for-hypotensive-anesthesia-during-arthroscopic-shoulder-surgery
#12
Joon Yub Kim, Seong Hun Song, Jae Ho Cho, Hyung Rae Cho
PURPOSE: Hypotensive anesthesia is crucial during arthroscopic shoulder surgery to reduce bleeding and allow for clear visibility. The aim of this study was to compare the clinical efficacy of continuous infusion of remifentanil, nicardipine, and remifentanil plus nicardipine to control hypotensive anesthesia in arthroscopic shoulder surgery. METHODS: For this study, we enrolled 45 consecutive patients who were scheduled to have arthroscopic rotator cuff repair surgery and randomly allocated them into remifentanil (group R, n = 15), nicardipine (group N, n = 15), and remifentanil plus nicardipine (group RN, n = 15) groups...
May 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28639151/central-arterial-function-measured-by-non-invasive-pulse-wave-analysis-is-abnormal-in-patients-with-duchenne-muscular-dystrophy
#13
Thomas D Ryan, John J Parent, Zhiqian Gao, Philip R Khoury, Elizabeth Dupont, Jennifer N Smith, Brenda Wong, Elaine M Urbina, John L Jefferies
Duchenne muscular dystrophy (DMD) is an X-linked recessive disorder caused by mutation of dystrophin. Cardiovascular involvement includes dilated cardiomyopathy. Non-invasive assessment of vascular function has not been evaluated in DMD. We hypothesize arterial wave reflection is abnormal in patients with DMD. Pulse wave analysis was performed on DMD patients with a SphygmoCor SCOR-PVx System to determine central blood pressure and augmentation index (AIx) as an assessment of arterial wave reflection. Results were compared to a control group...
June 21, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28639079/autonomic-nervous-system-response-to-stressors-in-newly-diagnosed-patients-with-multiple-sclerosis
#14
Miroslav Vlcek, Adela Penesova, Richard Imrich, Milada Meskova, Martina Mravcova, Lucia Grunnerova, Alexandra Garafova, Monika Sivakova, Peter Turcani, Branislav Kollar, Daniela Jezova
Autonomic dysfunction is commonly detected in patients with multiple sclerosis (MS). However, data evaluating autonomic nervous system function in early MS are limited. Present study investigates response to two different stressors in newly diagnosed MS patients, looking for the signs of autonomic dysfunction at the beginning of the disease. We examined 19 MS patients and 19 age, sex, and body mass index matched healthy controls. MS patients were newly diagnosed, untreated, and with low expanded disability status scale (EDSS) values [median 1...
June 21, 2017: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/28638496/effect-of-early-follow-up-after-hospital-discharge-on-outcomes-in-patients-with-heart-failure-or-chronic-obstructive-pulmonary-disease-a-systematic-review
#15
(no author information available yet)
BACKGROUND: Transitions in care can increase patients' vulnerability to adverse events. In particular, patients admitted for heart failure or chronic obstructive pulmonary disorder (COPD) have high rates of readmission and return emergency department visits. Heart failure patients have the highest 30-day readmission rates in Canada, and COPD patients comprise the highest volume of readmissions. Combined, these two conditions account for the largest number of emergency department returns...
2017: Ontario Health Technology Assessment Series
https://www.readbyqxmd.com/read/28638349/cardiorespiratory-coordination-in-repeated-maximal-exercise
#16
Sergi Garcia-Retortillo, Casimiro Javierre, Robert Hristovski, Josep L Ventura, Natàlia Balagué
Increases in cardiorespiratory coordination (CRC) after training with no differences in performance and physiological variables have recently been reported using a principal component analysis approach. However, no research has yet evaluated the short-term effects of exercise on CRC. The aim of this study was to delineate the behavior of CRC under different physiological initial conditions produced by repeated maximal exercises. Fifteen participants performed 2 consecutive graded and maximal cycling tests. Test 1 was performed without any previous exercise, and Test 2 6 min after Test 1...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28638002/predictors-of-international-normalized-ratio-variability-in-patients-with-atrial-fibrillation-under-warfarin-therapy
#17
Yoshimi Numao, Shinya Suzuki, Takuto Arita, Naoharu Yagi, Takayuki Otsuka, Koichi Sagara, Hiroaki Semba, Kenichi Sasaki, Hiroto Kano, Shunsuke Matsuno, Yuko Kato, Tokuhisa Uejima, Yuji Oikawa, Kazuyuki Nagashima, Hajime Kirigaya, Takashi Kunihara, Junji Yajima, Tadanori Aizawa, Takeshi Yamashita
BACKGROUND: Variability in the international normalized ratio (INR) of prothrombin time has been suggested to be related to outcome in patients with atrial fibrillation (AF) under warfarin therapy, but its determinants remain unclear.Methods and Results:The study population consisted of 626 AF patients under warfarin therapy in the Shinken Database (n=22,230). INR variability was calculated by Fihn's method. Determinants of high log INR variability (defined as over mean+standard deviation) were determined by logistic regression analyses...
June 22, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28637595/a-one-year-mortality-clinical-prediction-rule-for-patients-with-heart-failure
#18
Antonio Escobar, Lidia García-Pérez, Gemma Navarro, Amaia Bilbao, Raul Quiros
AIMS: To create and validate a clinical prediction rule which is easy to manage, reproducible and that allows classifying patients admitted for heart failure according to their one-year mortality risk. METHODS: A prospective cohort study carried out with 2565 consecutive patients admitted with heart failure in 13 hospitals in Spain. The derivation cohort was made up of 1283 patients and 1282 formed the validation cohort. In the derivation cohort, we carried out a multivariate logistic model to predict one-year mortality...
June 18, 2017: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/28637038/synergic-impact-of-vascular-calcification-and-low-autonomic-tone-in-mortality-of-hemodialysis-patients
#19
Hwee-Yeong Ng, Shu-Kai Hsueh, Yueh-Ting Lee, Terry Ting-Yu Chiou, Pei-Chen Huang, Chien-Te Lee
BACKGROUND: Both cardiovascular calcification and autonomic dysfunction are frequently encountered in hemodialysis patients. We aimed to investigate the relationship between cardiovascular calcification and heart rate variability (HRV) and their influence on long-term outcome. METHODS: Seventy-eight hemodialysis patients underwent echocardiogram and radiography of the pelvis and hands to identify valvular and vascular calcification. HRV was evaluated using a commercial machine...
June 22, 2017: Nephron
https://www.readbyqxmd.com/read/28637032/investigation-of-an-immediate-effect-of-bright-light-on-oxygen-consumption-heart-rate-cortisol-and-%C3%AE-amylase-in-seasonal-affective-disorder-subjects-and-healthy-controls
#20
Iana A Ivanova, Konstantin V Danilenko, Lyubomir I Aftanas
BACKGROUND: Body (fat) mass has been shown to decrease following bright light treatment for overweight women, irrespective of their seasonal (light) dependence. It is not known if this is due to an (immediate) increase of metabolism. METHODS: Ten women with seasonal affective disorder (SAD) and 10 non-SAD women matched by age, body mass index, and menopausal status participated in a laboratory study in the morning, twice within 1-5 days. During one session, bright light (4,300 lx) was presented for 30 min, and during the other session, red light (250 lx "placebo") was used...
June 22, 2017: Neuropsychobiology
keyword
keyword
109771
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"