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https://www.readbyqxmd.com/read/29778242/cardiovascular-responses-to-isometric-handgrip-exercise-in-young-patients-with-recurrent-vasovagal-syncope
#1
Juan Idiaquez, Juan Francisco Idiaquez, Rodrigo Iturriaga
OBJECTIVE: Arterial blood pressure (BP) increased in healthy humans in response to isometric handgrip (IHG), but the pattern of the relative contribution of cardiac output (CO) and total peripheral resistance (TPR) changes to the pressor response is different among individuals. We investigated weather patients with recurrent vasovagal syncope (VVS) have a similar pattern of individual CO, TPR and pressor responses to IHG, as healthy subjects. METHODS: 32 patients (27...
July 2018: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/29777715/association-between-plasma-ceramides-and-inducible-myocardial-ischemia-in-patients-with-established-or-suspected-coronary-artery-disease-undergoing-myocardial-perfusion-scintigraphy
#2
Alessandro Mantovani, Stefano Bonapace, Gianluigi Lunardi, Matteo Salgarello, Clementina Dugo, Guido Canali, Christopher D Byrne, Stefania Gori, Enrico Barbieri, Giovanni Targher
BACKGROUND: Recent studies have suggested that specific plasma ceramides are independently associated with major adverse cardiovascular events in patients with coronary artery disease (CAD), but it is currently unknown whether plasma ceramide levels are associated with stress-induced reversible myocardial ischemia. METHODS: We measured six previously identified high-risk plasma ceramide molecules [Cer(d18:1/16:0), Cer(d18:1/18:0), Cer(d18:1/20:0), Cer(d18:1/22:0), Cer(d18:1/24:0), and Cer(d18:1/24:1)] in 167 consecutive patients with established or suspected CAD who underwent either exercise or dypiridamole myocardial perfusion scintigraphy (MPS) for various clinical indications...
May 16, 2018: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/29775977/-rehabilitation-after-traumatic-fracture-of-thoracic-and-lumbar-spine
#3
Hartmut Bork, Stefan Simmel, Eckhardt Böhle, Ulrich Ernst, Klaus Fischer, Bernd Fromm, Jean-Jacques Glaesener, Bernhard Greitemann, P Krause, S Panning, V Pullwitt, J Schmidt, Andreas Veihelmann, Lutz Vogt
On the basis of the S2-k guideline "Rehabilitation after traumatic fractures of the thoracic und lumbar spine without neurologic disorder", this article gives an overview of target-oriented rehabilitation of patients with minor fractures or those with column stability and unstable spinal fractures which are stabilised by surgery. To obtain early social and job related reintegration, outpatient or inpatient rehabilitation has to start immediately after treatment in hospital. Rehabilitation must be orientated towards the biopsychosocial model of ICF and has to be adapted for the patient...
May 18, 2018: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/29775547/acute-dietary-nitrate-supplementation-does-not-attenuate-oxidative-stress-or-the-hemodynamic-response-during-submaximal-exercise-in-hypobaric-hypoxia
#4
Colin R Carriker, Paige Rombach, Brooke M Stevens, Roger A Vaughan, Ann L Gibson
PURPOSE: To investigate changes in oxidative stress, arterial oxygen saturation (SaO2), blood pressure (BP), and heart rate (HR) while exercising in hypobaric hypoxia following acute dietary nitrate supplementation. METHODS: Nine well-trained (60.8±7.8 ml/kg/min) males (29±7 years) visited the lab on 3 occasions, each separated by 1 week. Visit 1 included a maximal aerobic cycling test (VO2max) and 5 five-minute increasing intensity exercise bouts in a normobaric environment (1600m)...
May 18, 2018: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29775421/probability-of-heat-intolerance-standardized-interpretation-of-heat-tolerance-testing-results-versus-specialist-judgment
#5
Haggai Schermann, Erin Craig, Einat Yanovich, Itay Ketko, Gary Kalmanovich, Ran Yanovich
CONTEXT:   The heat-tolerance test (HTT) is a screening tool for secondary prevention of exertional heat illness by the Israel Defense Forces. To discern participant tolerance, recruits are exposed to intermediate environmental and exercise stresses, and their physiological responses, core temperature, and heart rate are monitored. When their physiological measures rise at a higher rate or exceed the upper levels of absolute values compared with other participants, heat intolerance (HI) is diagnosed...
April 2018: Journal of Athletic Training
https://www.readbyqxmd.com/read/29771821/the-effects-of-exercise-aspirin-and-celecoxib-in-an-atherogenic-environment
#6
Heather Grimm, Jan Kretzschmar, Marc D Cook, Michael D Brown
INTRODUCTION: Optimal vascular function is a hallmark of cardiovascular health. Specifically, the balance of vasoconstricting and vasodilating substances is recognized as a marker of vascular health. One of the greatest challenges to vascular health and vasodilatory balance is tumor necrosis factor alpha (TNFα) mediated inflammation. Uncovering effective strategies that maintain a vascular environment that is more vasodilatory and anti-thrombotic in the face of an inflammatory challenge is favorable...
April 30, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29768319/contrast-enhanced-stress-echocardiography-and-myocardial-perfusion-imaging-in-patients-hospitalized-with-chest-pain-a-randomized-study
#7
Gerald Salame, Whitney E Juselius, Marisha Burden, Carlin S Long, Tiffany Bendelow, Brenda Beaty, Frederick A Masoudi, Mori J Krantz
Ultrasound contrast-enhanced stress echocardiography improves endocardial visualization, but diagnostic test rates versus stress myocardial perfusion imaging (MPI) have not been studied. A prospective randomized trial was performed between April 2012 and October 2014 at a single-center, safety net hospital. Hospitalized patients referred for noninvasive stress imaging were randomized 1:1 to stress echocardiography or stress MPI. The primary outcome was diagnostic test rate defined as interpretable images and achievement of >85% of age-predicted maximal heart rate (for dobutamine and exercise)...
June 2018: Critical Pathways in Cardiology
https://www.readbyqxmd.com/read/29767671/significance-of-an-increase-in-diastolic-blood-pressure-during-a-stress-test-in-terms-of-comorbidities-and-long-term-total-and-cv-mortality
#8
Nóra Sydó, Tibor Sydó, Karina A Gonzalez Carta, Nasir Hussain, Béla Merkely, Joseph G Murphy, Ray W Squires, Francisco Lopez-Jimenez, Thomas G Allison
Background: A decrease in diastolic blood pressure (DBP) with exercise is considered normal, but the significance of an increase in DBP has not been validated. Our aim was to determine the relationship of DBP increasing on a stress test regarding comorbidities and mortality. Methods: Our database was reviewed from 1993-2010 using the first stress test of a patient. Non-Minnesota residence, baseline CV disease, rest DBP <60 or >100 mmHg, and age <30 or ≥80 were exclusion criteria...
May 15, 2018: American Journal of Hypertension
https://www.readbyqxmd.com/read/29759909/the-predictive-value-of-arteriogenic-erectile-dysfunction-for-coronary-artery-disease-in-men
#9
Sherif Salah Azab, Hossam El Din Hosni, Taha A El Far, Nashaat Nabil Ismail, Yasser K El Bakdady, Ahmed F Mohamed
BACKGROUND: Erectile dysfunction (ED) is assumed to be connected with vascular disease caused by endothelial dysfunction, and characterized by the incapability of the smooth muscle cells lining the arterioles to relax, therefore, inhibit vasodilatation. AIM: To assess the predictive value of arteriogenic ED for coronary artery disease in men above the age of 40 years. METHODS: 75 Patients reporting arteriogenic ED and 25 men with normal erectile function were enrolled in the study...
May 11, 2018: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/29759629/circadian-variation-of-ventricular-arrhythmias-in-catecholaminergic-polymorphic-ventricular-tachycardia
#10
Christina Y Miyake, S Yukiko Asaki, Gregory Webster, Richard J Czosek, Joseph Atallah, Kishor Avasarala, Sri O Rao, Patricia E Thomas, Jeffrey J Kim, Santiago O Valdes, Caridad de la Uz, Yunfei Wang, Xander H T Wehrens, Dominic Abrams
OBJECTIVES: The aim of this paper was to investigate whether ventricular arrhythmias in children with catecholaminergic polymorphic ventricular tachycardia (CPVT) show circadian patterns. BACKGROUND: Circadian arrhythmic patterns have been established in long QT, Brugada, and early repolarization, but have not been investigated in CPVT. METHODS: This is a multicenter, retrospective review of pediatric CPVT patients, age <21 years at diagnosis...
November 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29755928/the-effects-of-social-support-on-strenuous-physical-exercise
#11
Arran Davis, Emma Cohen
In humans, socio-environmental cues play an important role in determining adaptive psychophysiological states and behaviours. In sport and exercise, cues to cohesive groups and close, supportive relationships are ubiquitous, possibly because of their effects on neurobiological mechanisms underlying physical performance. Clinical research has shown that the presence of supportive others can lead to reductions in perceptions of pain, while research from sport and exercise science has shown that pain and physical fatigue occupy ranges on a single spectrum of physical discomfort, which works to regulate outputs during strenuous physical exertion...
2018: Adaptive Human Behavior and Physiology
https://www.readbyqxmd.com/read/29750878/perfusion-scintigraphy-in-the-assessment-of-autologous-cell-therapy-in-diabetic-patients-with-critical-limb-ischemia
#12
A Nemcova, A Jirkovska, M Dubsky, R Bem, V Fejfarova, V Woskova, A Pysna, M Buncova
Perfusion scintigraphy with technetium-99-methoxy-isobutyl-isonitrile ((99m)Tc-MIBI) is often used for assessing myocardial function but the number of studies concerning lower limb perfusion is limited. The aim of our study was to assess whether (99m)Tc-MIBI was an eligible method for evaluation of the effect of cell therapy on critical limb ischemia (CLI) in diabetic patients. (99m)Tc-MIBI of calf muscles was performed before and 3 months after autologous cell therapy (ACT) in 24 diabetic patients with CLI...
May 10, 2018: Physiological Research
https://www.readbyqxmd.com/read/29748195/does-high-intensity-endurance-training-increase-the-risk-of-atrial-fibrillation-a-longitudinal-study-of-left-atrial-structure-and-function
#13
Mildred A Opondo, Norman Aiad, Matthew A Cain, Satyam Sarma, Erin Howden, Douglas A Stoller, Jason Ng, Pieter van Rijckevorsel, Michinari Hieda, Takashi Tarumi, M Dean Palmer, Benjamin D Levine
BACKGROUND: Exercise mitigates many cardiovascular risk factors associated with atrial fibrillation. Endurance training has been associated with atrial structural changes which can increase the risk for atrial fibrillation. The dose of exercise training required for these changes is uncertain. We sought to evaluate the impact of exercise on left atrial (LA) mechanical and electrical function in healthy, sedentary, middle-aged adults. METHODS: Sixty-one adults (52±5 years) were randomized to either 10 months of high-intensity exercise training or yoga...
May 2018: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/29747957/home-exercise-childhood-obesity-intervention-a-randomized-clinical-trial-comparing-print-versus-web-based-move-it-platforms
#14
Alejandro Bruñó, Patricia Escobar, Ausias Cebolla, Julio Álvarez-Pitti, Jaime Guixeres, Empar Lurbe, Rosa Baños, Juan F Lisón
PURPOSE: To compare the impact of adhering to a Mediterranean diet plus mixed physical exercise program (Move-It) implemented by means of printed instructions or via a web-platform (with or without e-mail support) on body composition, physical fitness, and blood pressure. DESIGN AND METHODS: Randomized clinical trial. Fifty-two overweight or obese Spanish children and adolescents were randomly assigned to the print-based (n = 18), Move-It (n = 18), or Move-It plus support (n = 16) intervention groups...
May 7, 2018: Journal of Pediatric Nursing
https://www.readbyqxmd.com/read/29745795/diastolic-stress-testing-similarities-and-differences-between-isometric-handgrip-and-cycle-echocardiography
#15
Thomas Jake Samuel, Rhys Beaudry, Mark J Haykowsky, Satyam Sarma, Michael D Nelson
BACKGROUND: Cycle echocardiography (CE) is recommended for non-invasive diagnosis of diastolic dysfunction, but can be limited by respiratory and movement artifact. Isometric handgrip echocardiography (IHE) is also a robust diastolic discriminator, while avoiding the limitations associated with dynamic exercise. This study sought to compare these two diastolic stress testing approaches. METHODS: Twelve elderly individuals were recruited from the community (age: 71 + 6 years)...
May 10, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29745780/heat-acclimation-by-post-exercise-hot-water-immersion-in-the-morning-reduces-thermal-strain-during-morning-and-afternoon-exercise-heat-stress
#16
Michael J Zurawlew, Jessica A Mee, Neil P Walsh
PURPOSE: Recommendations state that to acquire the greatest benefit from heat acclimation the clock-time of heat acclimation sessions should match the clock-time of expected exercise-heat stress. It remains unknown if adaptations by post-exercise hot water immersion (HWI) demonstrate time of day dependent adaptations. Thus, we examined whether adaptations following post-exercise HWI completed in the morning were present during morning and afternoon exercise-heat stress. METHODS: Ten males completed an exercise-heat stress test commencing in the morning (0945-h: AM) and afternoon (1445-h: PM; 40 min; 65% V̇O2max treadmill run) before (PRE) and after (POST) heat acclimation...
May 10, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29740264/-map-training-my-brain-%C3%A2-meditation-plus-aerobic-exercise-lessens-trauma-of-sexual-violence-more-than-either-activity-alone
#17
Tracey J Shors, Han Y M Chang, Emma M Millon
Sexual violence against women often leads to post-traumatic stress disorder (PTSD), a mental illness characterized by intrusive thoughts and memories about the traumatic event (Shors and Millon, 2016). These mental processes are obviously generated by the brain but often felt in the body. MAP Training My Brain ™ is a novel clinical intervention that combines mental training of the brain with physical training of the body (Curlik and Shors, 2013; Shors et al., 2014). Each training session begins with 20-min of sitting meditation, followed by 10-min of slow-walking meditation, and ending with 30-min of aerobic exercise at 60-80% of the maximum heart rate (see maptrainmybrain...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29739647/estimation-of-the-blood-pressure-response-with-exercise-stress-testing
#18
Benjamin T Fitzgerald, Emma L Ballard, Gregory M Scalia
BACKGROUND: The blood pressure response to exercise has been described as a significant increase in systolic BP (sBP) with a smaller change in diastolic BP (dBP). This has been documented in small numbers, in healthy young men or in ethnic populations. This study examines these changes in low to intermediate risk of myocardial ischaemia in men and women over a wide age range. METHODS: Consecutive patients having stress echocardiography were analysed. Ischaemic tests were excluded...
April 20, 2018: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29738302/care-and-treatment-of-a-rare-mycobacterium-avium-complex-infected-wound-a-case-report
#19
Min Wei, Qixia Jiang, Jiandong Wang
An unusual presentation of Mycobacterium avium complex (MAC), unlikely to be encountered in an outpatient dermatology setting, was diagnosed in a patient without an immunodeficiency. A 47-year-old woman, who was immunocompetent and had no risk factors, presented with a full-thickness, infected wound (large amounts of purulent exudate and severe pain) on her back, which had been present for two months. She was diagnosed as having an MAC infection, using a DNA microarray chip method. The patient underwent wound drainage and a fresh silver-containing dressing was applied daily for two months...
May 2, 2018: Journal of Wound Care
https://www.readbyqxmd.com/read/29732035/can-chronotropic-incompetence-predict-life-threatening-ventricular-arrhythmias-in-patients-with-stable-ischemic-heart-disease
#20
Yelena Rib, Gulnar Zhussupova, Gaukhar Igimbayeva, Ayan Abdrakhmanov, Seyed Farzad Jalali
Background: Chronotropic incompetence has prognostic value of all-cause and cardiovascular mortality in both patients with asymptomatic and symptomatic ischemic heart disease (IHD), regardless of traditional risk factors. The aim of this study was to investigate the relationship between chronotropic response during exercise test and the development of ventricular arrhythmias. Methods: 153 patients with stable ischemic heart disease were screened and observed during the 24 months since October 2014 in a university hospital in Astana Kazakhstan...
2018: Caspian Journal of Internal Medicine
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