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https://www.readbyqxmd.com/read/27915207/fixed-distance-walk-tests-at-comfortable-and-fast-speed-potential-tools-for-the-functional-assessment-of-coronary-patients
#1
Marie-Doriane Morard, Delphine Besson, Davy Laroche, Alexandre Naaïm, Vincent Gremeaux, Jean-Marie Casillas
OBJECTIVES: There is ambiguity concerning the walk tests available for functional assessment of coronary patients, particularly for the walking speed. This study explores the psychometric properties of two walking tests, based on fixed-distance tests, at comfortable and fast velocity, in stabilized patients at the end of a cardiac rehabilitation program. METHODS: At a three-day interval 58 coronary patients (mean age of 64.85±6.03 years, 50 men) performed three walk tests, the first two at a comfortable speed in a random order (6-minute walk test - 6MWT - and 400-metre comfortable walk test - 400mCWT) and the third at a brisk speed (200-metre fast walk test - 200mFWT)...
November 30, 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27913834/key-role-of-pacing-site-as-determinant-factor-of-exercise-testing-performance-in-pediatric-patients-with-chronic-ventricular-pacing
#2
Michel Cabrera Ortega, Hiram Tápanes Duamy, Dunia B Benítez Ramos
Chronic right ventricular (RV) apical pacing has been associated with deterioration of functional capacity and chronotropic incompetence during exercise testing in children. The effects of alternative pacing site on exercise performance in pediatric population remain unknown. We evaluated the influence of ventricular pacing site on exercise capacity in pediatric patients with complete congenital atrioventricular block requiring permanent pacemaker therapy. Sixty-four children paced from RV apex (n = 26), RV midseptum (n = 15) and left ventricular (LV) apex (n = 23) were studied cross-sectionally...
December 2, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27909228/divergent-outcomes-of-fructose-consumption-on-exercise-capacity-of-rats-friend-or-foe
#3
Angela Sun, An Huang, Elizabeth Kertowidjojo, Su Song, Thomas H Hintze, Dong Sun
To test the hypothesis that high fructose (HF) consumption divergently affects exercise capability, as a function of feeding duration, rats were fed a normal (as control) or a normal caloric diet with HF for 3, 6, 10 and 30 days respectively, and run on a treadmill. Results show that running distance and work were significantly increased, associated with greater exercise oxygen consumption in rats fed HF for 3 (HF-3D) and 6 days, but were decreased in rats fed HF for 30 days (HF-30D) compared to their respective control rats...
December 1, 2016: Journal of Applied Physiology
https://www.readbyqxmd.com/read/27908388/the-unknown-association-of-ppis-with-chest-pain-in-patients-with-known-treated-coronary-artery-disease-a-diagnostic-dilemma
#4
Fahad Javed, Stephen Ramee
Patients with coronary artery disease (CAD) are destined to lifelong antiplatelet therapy in form of aspirin (acetylsalicylic acid) alone, or in combination with other P2Y2 inhibitors. Proton pump inhibitors (PPIs) are the preferred agents for the treatment and prophylaxis of gastrointestinal injury associated with nonsteroidal anti-inflammatory drug or acetylsalicylic acid or both,(1) but recent data has raised questions about their association with negative cardiovascular events. We report 2 cases of patients with known CAD presented with chest pain mimicking angina pectoris that successfully resolved on discontinuation of the PPIs...
July 2016: Current Problems in Cardiology
https://www.readbyqxmd.com/read/27903685/to-stress-or-not-to-stress-exercise-pulmonary-haemodynamic-testing-in-systemic-sclerosis
#5
EDITORIAL
Edmund M T Lau, Vivek Thakkar, Marc Humbert, Philippe Herve
No abstract text is available yet for this article.
December 2016: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/27896702/safety-of-regadenoson-stress-testing-in-patients-with-pulmonary-hypertension
#6
Victor M Moles, Thomas Cascino, Ashraf Saleh, Krasimira Mikhova, John J Lazarus, Michael Ghannam, Hong J Yun, Matthew Konerman, Richard L Weinberg, Edward P Ficaro, James R Corbett, Vallerie V McLaughlin, Venkatesh L Murthy
OBJECTIVES: We sought to determine the safety of regadenoson stress testing in patients with PH. BACKGROUND: PH is increasingly recognized at more advanced ages. As many as one-third of patients with PH have coronary artery disease. Because of their physical limitations, patients with PH are unable to adequately exercise. Regadenoson can potentially have an adverse impact due to their tenuous hemodynamics. Current guidelines suggest performing a coronary angiography in patients with PH who have angina or multiple coronary risk factors...
November 28, 2016: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/27895542/effect-of-tart-cherry-juice-on-recovery-and-next-day-performance-in-well-trained-water-polo-players
#7
Rachel McCormick, Peter Peeling, Martyn Binnie, Brian Dawson, Marc Sim
BACKGROUND: Tart Montmorency cherries contain high concentrations of phytochemicals and anthocyanins, which have recently been linked to improved athletic recovery and subsequent performance. To date however, previous work reporting promising results has focused on land-based endurance sports, with any potential benefits to team sports remaining unknown. As such, this investigation set-out to examine the effect of supplemental tart cherry juice (CJ) on recovery and next day athletic performance in highly-trained water-based team sport athletes over seven days...
2016: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/27891259/neurocardiogenic-syncope-and-supraventricular-tachycardia-in-association-with-a-rare-congenital-aortic-valve-abnormality
#8
Yashwant Agrawal, Jagadeesh K Kalavakunta, Vishal Gupta, William Lapenna
We report a case of a 26-year-old woman who presented with multiple episodes of syncope over a five-months period of time. Transthoracic echocardiogram had shown a normal functioning quadricuspid aortic valve (QAV) which was also confirmed on a transesophageal echocardiogram. Computed tomographic angiography of heart and coronary arteries showed the QAV with equal size of all aortic cusps and normal coronary arteries. Intermittent chest pain and palpitations warranted an exercise stress test. The stress test revealed normal aerobic exertion, with achievement of 101% of maximal peak heart rate...
2016: Case Reports in Cardiology
https://www.readbyqxmd.com/read/27889934/vascular-cell-transcriptomic-changes-to-exercise-training-differ-directionally-along-and-between-skeletal-muscle-arteriolar-trees
#9
M Harold Laughlin, Hsiao T Yang, Darla L Tharp, R Scott Rector, Jaume Padilla, Douglas K Bowles
EXT-induced arteriolar adaptations in skeletal muscle are heterogeneous because of spatial variations in muscle fiber type composition and fiber recruitment patterns during exercise. The purpose of this report is to summarize a series of experiments conducted to test the hypothesis that changes in vascular gene expression are signaled by alterations in shear stress resulting from increases in blood flow, muscle fiber type composition and fiber recruitment patterns. We also report results from a follow-up study of Ankrd23, one gene whose expression was changed by EXT...
November 27, 2016: Microcirculation: the Official Journal of the Microcirculatory Society, Inc
https://www.readbyqxmd.com/read/27887692/mechanisms-of-effort-intolerance-in-patients-with-heart-failure-and-borderline-ejection-fraction
#10
Yan Topilsky, Zach Rozenbaum, Shafik Khoury, Gregg S Pressman, Yaniv Gura, Jack Sherez, Avi Man, Jason Shimiaie, Sanford Edwards, Joshua Berookhim, Thierry Le Tourneau, Amir Halkin, Simon Biner, Gad Keren, Galit Aviram
Combining echocardiography and cardiopulmonary stress testing allows noninvasive assessment of hemodynamics, and oxygen extraction (A-VO2 difference). We evaluated mechanisms of effort intolerance in patients with heart failure with borderline (40% to 49%) left ventricular ejection fraction (EF) (HF and Borderline Ejection fraction). We included 89 consecutive patients with HF and Borderline Ejection fraction (n = 25; 63.6 ± 14 years, 64% men), control subjects (n = 22), patients with HF with preserved EF (n = 26; EF ≥50%), and patients with HF with reduced EF (n = 16; <40%)...
November 1, 2016: American Journal of Cardiology
https://www.readbyqxmd.com/read/27882731/reproducibility-of-corrected-qt-interval-in-pediatric-genotyped-long-qt-syndrome
#11
Yoshiharu Ogawa, Toshikatsu Tanaka, Sachiko Kido
Reproducibility of corrected QT interval (QTc), especially QTc after exercise, has not been thoroughly investigated. We reviewed charts of pediatric patients who underwent treadmill-exercise stress testing without medication multiple times within 1 year. In patients with long-QT syndrome (LQTS; n = 22), the discrepancy in QTc between two treadmill exercise stress tests using Fridericia's formula was 14 ± 12 ms at rest, 13 ± 12 ms 4 min after exercise, with a maximum of 14 ± 12 ms after exercise. There was no statistically significant difference in QTc between the two tests...
November 2016: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/27879642/curcumin-and-boswellia-serrata-modulate-the-glyco-oxidative-status-and-lipo-oxidation-in-master-athletes
#12
Nino Cristiano Chilelli, Eugenio Ragazzi, Romina Valentini, Chiara Cosma, Stefania Ferraresso, Annunziata Lapolla, Giovanni Sartore
BACKGROUND: Chronic intensive exercise is associated with a greater induction of oxidative stress and with an excess of endogenous advanced glycation end-products (AGEs). Curcumin can reduce the accumulation of AGEs in vitro and in animal models. We examined whether supplementation with curcumin and Boswellia serrata (BSE) gum resin for 3 months could affect plasma levels of markers of oxidative stress, inflammation, and glycation in healthy master cyclists. METHODS: Forty-seven healthy male athletes were randomly assigned to Group 1, consisting of 22 subjects given a Mediterranean diet (MD) alone (MD group), and Group 2 consisted of 25 subjects given a MD plus curcumin and BSE (curcumin/BSE group)...
November 21, 2016: Nutrients
https://www.readbyqxmd.com/read/27878628/global-deformation-parameters-response-to-exercise-in-adolescents-with-repaired-tetralogy-of-fallot
#13
Timur Mese, Baris Guven, Murat Muhtar Yilmazer, Mustafa Demirol, Şenay Çoban, Cem Karadeniz
Exercise stress echocardiography is rarely used in the follow-up of children with congenital heart disease following surgical repair. There are no data on global longitudinal strain (GLS) and global circumferential strain (GCS) during exercise in adolescents with repaired tetralogy of Fallot (TOF). The purpose of this prospective study was to investigate GLS and GCS using speckle tracking two-dimensional echocardiography (2D-STE) at rest and during exercise in adolescents with repaired TOF. Twenty patients with repaired TOF and 20 controls were included...
November 23, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27875636/evaluation-of-coronary-artery-disease-in-potential-liver-transplant-recipients
#14
REVIEW
Brian J Hogan, Enoka Gonsalkorala, Michael A Heneghan
Improvements in the management of patients undergoing Liver Transplantation (LT) have resulted in a significant increase in survival over recent years. Cardiac disease is now the leading cause of early mortality and the stress of major surgery, haemodynamic shifts, the possibility of haemorrhage or reperfusion syndrome require the recipient to have good baseline cardiac function. The prevalence of coronary artery disease (CAD) is increasing in liver transplant candidates, especially in those with Non-Alcohol related Fatty Liver Disease (NAFLD)...
November 22, 2016: Liver Transplantation
https://www.readbyqxmd.com/read/27872403/biomechanical-analysis-of-weighted-ball-exercises-for-baseball-pitchers
#15
Glenn S Fleisig, Alek Z Diffendaffer, Kyle T Aune, Brett Ivey, Walter A Laughlin
BACKGROUND: Weighted-ball throwing programs are commonly used in training baseball pitchers to increase ball velocity. The purpose of this study was to compare kinematics and kinetics among weighted-ball exercises with values from standard pitching (ie, pitching standard 5-oz baseballs from a mound). HYPOTHESIS: Ball and arm velocities would be greater with lighter balls and joint kinetics would be greater with heavier balls. STUDY DESIGN: Controlled laboratory study...
November 21, 2016: Sports Health
https://www.readbyqxmd.com/read/27869041/wolff-parkinson-white-syndrome-a-single-exercise-stress-test-might-be-misleading
#16
Arash Salavitabar, Eric S Silver, Leonardo Liberman
Risk stratification of patients with Wolff-Parkinson-White syndrome for sudden death is a complex process, particularly in understanding the utility of the repeat exercise stress test. We report a case of an 18-year-old patient who was found to have a high-risk pathway by both invasive and exercise stress testing after an initial exercise stress test showing beat-to-beat loss of pre-excitation.
November 21, 2016: Cardiology in the Young
https://www.readbyqxmd.com/read/27865723/mechanisms-of-effort-intolerance-in-patients-with-rheumatic-mitral-stenosis-combined-echocardiography-and-cardiopulmonary-stress%C3%A2-protocol
#17
Michal Laufer-Perl, Yaniv Gura, Jason Shimiaie, Jack Sherez, Gregg S Pressman, Galit Aviram, Simon Maltais, Ricki Megidish, Amir Halkin, Meirav Ingbir, Simon Biner, Gad Keren, Yan Topilsky
OBJECTIVES: This study sought to evaluate mechanisms of effort intolerance in patients with rheumatic mitral stenosis (MS). BACKGROUND: Combined stress echocardiography and cardiopulmonary testing allows assessment of cardiac function, hemodynamics, and oxygen extraction (A-Vo2 difference). METHODS: Using semirecumbent bicycle exercise, 20 patients with rheumatic MS (valve area 1.36 ± 0.4 cm(2)) were compared to 20 control subjects at 4 pre-defined activity stages (rest, unloaded, anaerobic threshold, and peak)...
November 10, 2016: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27865641/canadian-cardiovascular-society-guidelines-on-perioperative-cardiac-risk-assessment-and-management-for-patients-who-undergo-noncardiac-surgery
#18
Emmanuelle Duceppe, Joel Parlow, Paul MacDonald, Kristin Lyons, Michael McMullen, Sadeesh Srinathan, Michelle Graham, Vikas Tandon, Kim Styles, Amal Bessissow, Daniel I Sessler, Gregory Bryson, P J Devereaux
The Canadian Cardiovascular Society Guidelines Committee and key Canadian opinion leaders believed there was a need for up to date guidelines that used the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) system of evidence assessment for patients who undergo noncardiac surgery. Strong recommendations included: 1) measuring brain natriuretic peptide (BNP) or N-terminal fragment of proBNP (NT-proBNP) before surgery to enhance perioperative cardiac risk estimation in patients who are 65 years of age or older, are 45-64 years of age with significant cardiovascular disease, or have a Revised Cardiac Risk Index score ≥ 1; 2) against performing preoperative resting echocardiography, coronary computed tomography angiography, exercise or cardiopulmonary exercise testing, or pharmacological stress echocardiography or radionuclide imaging to enhance perioperative cardiac risk estimation; 3) against the initiation or continuation of acetylsalicylic acid for the prevention of perioperative cardiac events, except in patients with a recent coronary artery stent or who will undergo carotid endarterectomy; 4) against α2 agonist or β-blocker initiation within 24 hours before surgery; 5) withholding angiotensin-converting enzyme inhibitor and angiotensin II receptor blocker starting 24 hours before surgery; 6) facilitating smoking cessation before surgery; 7) measuring daily troponin for 48 to 72 hours after surgery in patients with an elevated NT-proBNP/BNP measurement before surgery or if there is no NT-proBNP/BNP measurement before surgery, in those who have a Revised Cardiac Risk Index score ≥1, age 45-64 years with significant cardiovascular disease, or age 65 years or older; and 8) initiating of long-term acetylsalicylic acid and statin therapy in patients who suffer myocardial injury/infarction after surgery...
October 4, 2016: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/27863351/abnormal-heart-rate-response-during-cardiopulmonary-exercise-testing-identifies-cardiac-dysfunction-in-symptomatic-patients-with-non-obstructive-coronary-artery-disease
#19
Sundeep Chaudhry, Naresh Kumar, Hushyar Behbahani, Akshay Bagai, Binoy K Singh, Nick Menasco, Gregory D Lewis, Laurence Sperling, Jonathan Myers
BACKGROUND: Symptomatic non-obstructive coronary artery disease is a growing clinical dilemma for which contemporary testing is proving to be of limited clinical utility. New methods are needed to identify cardiac dysfunction. METHODS AND RESULTS: This is a prospective observational cohort study conducted from December 2013 to August 2015 in two outpatient cardiology clinics (symptomatic cohort) and 24 outpatient practices throughout the US (healthy cohort) with centralized methodology and monitoring to compare heart-rate responses during cardiopulmonary exercise testing (CPET)...
November 14, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27857956/exercise-in-personal-protective-equipment-in-a-hot-humid-environment-does-not-affect-risk-propensity
#20
Zachary J Schlader, Jennifer L Temple, David Hostler
We tested the hypothesis that heat stress created by light exertion in encapsulating personal protective equipment (PPE) in a hot, humid environment increases risk propensity. Ten healthy subjects (29 ± 7 y) completed 2 trials presented in a counter-balanced manner. Subjects donned encapsulating PPE, and in one trial they wore a tube-lined shirt underneath that was perfused with 5°C water. Subjects completed 2 15 min bouts of walking exercise on a treadmill at ˜50% maximal heart rate in a 32°C, 81% RH environment...
April 2016: Temperature: Multidisciplinary Biomedical Journal
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