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Exercise ECG

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https://www.readbyqxmd.com/read/29764897/diagnostic-yield-of-genetic-testing-in-young-athletes-with-t-wave-inversion
#1
Nabeel Sheikh, Michael Papadakis, Mathew Wilson, Aneil Malhotra, Carmen Adamuz, Tessa Homfray, Lorenzo Monserrat, Elijah R Behr, Sanjay Sharma
Background -T-wave inversion (TWI) is common in patients with cardiomyopathy. However, up to 25% of athletes of African/Afro-Caribbean descent (black athletes) and 5% of white athletes also have TWI of unclear clinical significance despite comprehensive clinical evaluation and long-term follow-up. The aim of this study was to determine the diagnostic yield from genetic testing, beyond clinical evaluation, when investigating athletes with TWI. Methods -We investigated 50 consecutive asymptomatic black and 50 white athletes aged 14-35-years-old with TWI and a normal echocardiogram who were referred to a UK tertiary center for cardiomyopathy and sports cardiology...
May 15, 2018: Circulation
https://www.readbyqxmd.com/read/29759909/the-predictive-value-of-arteriogenic-erectile-dysfunction-for-coronary-artery-disease-in-men
#2
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/29759546/subcutaneous-implantable-cardioverter-defibrillator-and-arrhythmogenic-right-ventricular-cardiomyopathy-the-importance-of-repeat-ecg-screening-during-exercise-test
#3
Federico Migliore, Emanuele Bertaglia, Alessandro Zorzi, Domenico Corrado
No abstract text is available yet for this article.
July 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29749082/effect-of-induced-chronic-atrial-fibrillation-on-exercise-performance-in-standardbred-trotters
#4
Rikke Buhl, Helena Carstensen, Eva Zander Hesselkilde, Bjørg Zinkernagel Klein, Karen Margrethe Hougaard, Kirsten Bomberg Ravn, Ameli Victoria Loft-Andersen, Merle Friederike Fenner, Christian Pipper, Thomas Jespersen
BACKGROUND: Atrial fibrillation (AF) is the most common arrhythmia affecting performance in horses. However, no previous studies have quantified the performance reduction in horses suffering from AF. OBJECTIVES: To quantify the effect of AF on maximum velocity (Vmax ), maximum heart rate (HRmax ), heart rate recovery (T100 ), hematologic parameters and development of abnormal QRS complexes. ANIMALS: Nine Standardbred trotters. METHODS: Two-arm controlled trial...
May 10, 2018: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/29745872/effects-of-autonomic-dysfunction-on-exercise-tolerance-in-systemic-sclerosis-patients-without-clinical-and-instrumental-evidence-of-cardiac-and-pulmonary-involvement
#5
Marcello Di Paolo, Antonietta Gigante, Marta Liberatori, Liborio Sardo, Paolo Marinelli, Marco Rossetti, Paolo Palange, Luigi Tubani, Edoardo Rosato
OBJECTIVES: Autonomic dysfunction (AD) in systemic sclerosis (SSc) was already confirmed through heart rate variability (HRV) analysis. Cardio-pulmonary exercise testing (CPET) is a useful tool in early detection of exercise tolerance in SSc patients. Aim of the study was to assess the relationships existing between AD and exercise tolerance. METHODS: Thirty-two [4 M, 28 F; median age: 47.5 (20-65) years] consecutive SSc patients were enrolled. All patients underwent pulmonary function testing, incremental symptom-limited CPET and twenty-four hours ECG Holter recording with HRV analysis in time and frequency domain...
May 4, 2018: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/29745804/protection-against-severe-hypokalemia-but-impaired-cardiac-repolarization-after-intense-rowing-exercise-in-healthy-humans-receiving-salbutamol
#6
Tania Atanasovska, Robert Smith, Claus Graff, Cao Thach Tran, Jacob Melgaard, Jørgen K Kanters, Aaron C Petersen, Antony Tobin, Keld P Kjeldsen, Michael John McKenna
Intense exercise induces pronounced hyperkalemia, followed by transient hypokalemia in recovery. We investigated whether the β2 -agonist salbutamol attenuated the exercise-hyperkalemia, and exacerbated the post-exercise hypokalemia, and whether hypokalemia was associated with impaired cardiac repolarization (QT hysteresis). Eleven healthy adults participated in a randomized, counterbalanced, double-blind trial receiving either 1000 µg salbutamol (SAL) or placebo (PLAC) by inhalation. Arterial plasma potassium concentration ([K+ ]a ) was measured at rest, during 3 min intense rowing exercise and 60 min recovery...
May 10, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29744011/noninvasive-evaluation-of-symptomatic-women-with-suspected-coronary-artery-disease
#7
REVIEW
Mohammed A Chamsi-Pasha, Karla M Kurrelmeyer
Cardiovascular disease (CVD) is the leading cause of death in the United States, yet several factors make it challenging to diagnose in women. Although women have more frequent chest pain than men, atypical symptoms such as nausea, dyspnea, and fatigue make it difficult to determine their risk of coronary artery disease (CAD) before testing. Current guidelines recommend exercise electrocardiography (ex-ECG) as the initial test in symptomatic women with intermediate pretest probability who can exercise and have a normal resting ECG; however, treadmill ex-ECG testing has a significantly lower positive predictive value in women...
October 2017: Methodist DeBakey Cardiovascular Journal
https://www.readbyqxmd.com/read/29717103/angina-pectoris-in-young-male-due-to-agenesis-of-left-circumflex-artery
#8
Thomas J Guterbaum, Kristian A Øvrehus, Karsten T Veien, Jacob E Møller, Hans Mickley
BACKGROUND This case study demonstrated that although highly symptomatic, agenesis of the left circumflex artery was a benign finding. Anomalies of the coronary arteries were found to be the cause of sudden death in a young individual. Left circumflex anomalies were not associated with major cardiac events. CASE REPORT A 20-year-old male was admitted due to syncope preceded by chest pain. His electrocardiogram (ECG) showed global ST segment elevation as well as biphasic T waves in anterior precordial leads...
May 2, 2018: American Journal of Case Reports
https://www.readbyqxmd.com/read/29713290/high-altitude-affects-nocturnal-non-linear-heart-rate-variability-patch-ha-study
#9
Christopher J Boos, Kyo Bye, Luke Sevier, Josh Bakker-Dyos, David R Woods, Mark Sullivan, Tom Quinlan, Adrian Mellor
Background: High altitude (HA) exposure can lead to changes in resting heart rate variability (HRV), which may be linked to acute mountain sickness (AMS) development. Compared with traditional HRV measures, non-linear HRV appears to offer incremental and prognostic data, yet its utility and relationship to AMS have been barely examined at HA. This study sought to examine this relationship at terrestrial HA. Methods: Sixteen healthy British military servicemen were studied at baseline (800 m, first night) and over eight consecutive nights, at a sleeping altitude of up to 3600 m...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29691271/unusual-congenital-coronary-artery-anomaly-in-a-young-adult-presenting-as-sudden-cardiac-arrest
#10
Manuel Cortes, Carlos A Roldan, Stacey Clegg
A previously asymptomatic young female with no previous medical or cardiac history collapsed during indoor exercise. A portable automatic external defibrillator showed a shockable rhythm. She received multiple electrical shocks with return to normal sinus rhythm without ischaemic ECG changes. Her troponin level was mildly elevated. A transthoracic echocardiogram revealed moderately reduced left ventricular ejection fraction with global hypokinesis. During emergent coronary angiography, the left main coronary artery could not be found...
April 24, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29679294/gender-differences-in-home-based-cardiac-rehabilitation-of-post-percutaneous-coronary-intervention-patients
#11
Yong Hwan Kim, Wi-Young So
Cardiac rehabilitation (CR) is a structured program for the prevention of secondary cardiovascular disease (CVD) and related diseases, such as hypertension, diabetes, and obesity. This study aimed to investigate whether there are gender differences after 9 months of home-based cardiac rehabilitation program in post-percutaneous coronary intervention patients. A total of 114 (58.29 ± 10.33 years) men and 30 (60.90 ± 9.32 years) women were enrolled in the CR program. The program included three visits: initial, 4th month (follow-up), and 9th month (final) visits at a CR center...
April 20, 2018: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/29668452/can-wearable-devices-accurately-measure-heart-rate-variability-a-systematic-review
#12
REVIEW
Konstantinos Georgiou, Andreas V Larentzakis, Nehal N Khamis, Ghadah I Alsuhaibani, Yasser A Alaska, Elias J Giallafos
BACKGROUND: A growing number of wearable devices claim to provide accurate, cheap and easily applicable heart rate variability (HRV) indices. This is mainly accomplished by using wearable photoplethysmography (PPG) and/or electrocardiography (ECG), through simple and non-invasive techniques, as a substitute of the gold standard RR interval estimation through electrocardiogram. Although the agreement between pulse rate variability (PRV) and HRV has been evaluated in the literature, the reported results are still inconclusive especially when using wearable devices...
March 1, 2018: Folia Medica
https://www.readbyqxmd.com/read/29658801/the-effects-of-tandem-skiing-on-posture-and-heart-rate-in-children-with-profound-intellectual-and-multiple-disabilities
#13
F Degache, A Bonjour, D Michaud, L Mondada, C J Newman
PURPOSE: The objective of study was to determine the effect of tandem ski (TS) activity on postural control and cardiac activity in children with profound intellectual and multiple disabilities (PIMDs). METHOD: Twenty children with PIMD and 20 age-matched controls (typically developed (TD) children) participated. Body segment movements were measured with inertial sensors (Physilog®) placed on the head, C7, trunk (including ECG) and pelvis with a seat reference...
April 16, 2018: Developmental Neurorehabilitation
https://www.readbyqxmd.com/read/29611774/examining-physiotherapist-use-of-structured-aerobic-exercise-testing-to-decrease-barriers-to-aerobic-exercise
#14
Evan Foster B Sc, Julia E Fraser, Elizabeth L Inness PhD, Sarah Munce, Louis Biasin, Vivien Poon, Mark Bayley
OBJECTIVE: To determine the frequency of physiotherapist-administered aerobic exercise testing/training, the proportion of physiotherapists who administer this testing/training, and the barriers that currently exist across different practice environments. A secondary objective is to identify the learning needs of physiotherapists for the development of an education curriculum in aerobic exercise testing and training with electrocardiograph (ECG) administration and interpretation. DESIGN: National, cross-sectional survey...
April 3, 2018: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/29610596/catecholaminergic-polymorphic-ventricular-tachycardia-looking-to-the-future
#15
Andreea Elena Velcea, Calin Siliste, Dragos Vinereanu
Catecholaminergic polymorphic ventricular tachycardia (CPVT) is a rare inheritable cardiac disorder, characterized by polymorphic ventricular tachycardia (PVT) or bidirectional ventricular tachycardia, triggered by adrenergic stress, and manifested most frequently as syncope or sudden cardiac death. The disease has a heterogeneous genetic basis, with mutations in the genes encoding the ryanodine and calsequestrin channels accounting for the majority of cases. The diagnosis of CPVT is established in individuals with polymorphic ventricular premature beats, PVT or bidirectional ventricular tachycardia documented during exercise or adrenergic stress, who have a structurally normal heart and normal resting ECG...
December 2017: Mædica
https://www.readbyqxmd.com/read/29609921/a-comparison-of-the-cardiovascular-effects-of-simulated-and-spontaneous-laughter
#16
Mikaela M Law, Elizabeth A Broadbent, John J Sollers
OBJECTIVES: Laughter has long been regarded as beneficial for health, but the mechanisms are not clearly understood. The current study aimed to compare the acute cardiovascular effects of spontaneous and simulated laughter. DESIGN: A mixed factorial experiment was performed to examine changes in cardiovascular variables in response to experimental tasks across conditions. INTERVENTIONS: A sample of 72 participants were randomised to one of three 6 min interventions...
April 2018: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/29590693/-quality-performance-measures-in-cardiac-rehabilitation-results-of-a-delphi-survey-of-members-of-the-german-society-for-prevention-and-rehabilitation-of-cardiovascular-diseases-dgpr
#17
Annett Salzwedel, Kathrin Haubold, Beate Barnack, Rona Reibis, Heinz Völler
OBJECTIVE: The present investigation aimed an explorative acquisition of potential performance measures for quantifying the quality of cardiac rehabilitation (CR) for patients under 65 years of age. METHODS: A 4-level web based Delphi survey of physicians, psychologists, and sports or physiotherapists in CR was conducted from April to July in 2016. The experts assessed several parameters of physical performance, social medicine, subjective health and cardiovascular risk factors regarding their suitability as performance measures of CR...
March 28, 2018: Die Rehabilitation
https://www.readbyqxmd.com/read/29581040/female-false-positive-exercise-stress-ecg-testing-fact-verses-fiction
#18
Benjamin T Fitzgerald, William M Scalia, Gregory M Scalia
BACKGROUND: Exercise stress testing is a well validated cardiovascular investigation. Accuracy for treadmill stress electrocardiograph (ECG) testing has been documented at 60%. False positive stress ECGs (exercise ECG changes with non-obstructive disease on anatomical testing) are common, especially in women, limiting the effectiveness of the test. This study investigates the incidence and predictors of false positive stress ECG findings, referenced against stress echocardiography (SE) as a standard...
March 7, 2018: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29579580/cost-effectiveness-of-a-management-strategy-based-on-exercise-echocardiography-versus-exercise-electrocardiography-in-patients-presenting-with-suspected-angina-during-long-term-follow-up-a-randomized-study
#19
Sothinathan Gurunathan, Kostas Zacharias, Mohammed Akhtar, Asrar Ahmed, Vishal Mehta, Nikos Karogiannis, Anastasia Vamvakidou, Raj Khattar, Roxy Senior
INTRODUCTION: Exercise ECG (Ex-ECG) is advocated by guidelines for patients with low - intermediate probability of coronary artery disease (CAD). However, there are no randomized studies comparing Ex-ECG with exercise stress echocardiography (ESE) evaluating long term cost-effectiveness of each management strategy. METHODS: Accordingly, 385 patients with no prior CAD and low-intermediate probability of CAD (mean pre-test probability 34%), were randomized to undergo either Ex-ECG (194 patients) or ESE (191 patients)...
May 15, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29577259/elevated-high-sensitive-troponin-t-in-negative-stress-test-individuals
#20
Rafael Y Brzezinski, Eyal Fisher, Michal Ehrenwald, Gabi Shefer, Naftali Stern, Itzhak Shapira, David Zeltser, Shlomo Berliner, Shani Shenhar-Tsarfaty, Assi Milwidsky, Ori Rogowski
BACKGROUND: The exercise ECG stress test (EST) is still the first step of work-up in intermediate risk patients in many clinical scenarios. High sensitive cardiac troponin T (hs-cTnT) elevation is related to future cardiovascular events in the general population and in patients with ischemic heart disease. The relation between these two tests is not well described. MATERIALS AND METHODS: A total of 2,780 participants from the Tel-Aviv Medical Center Inflammation Survey cohort (mean age 49 years, 79% men) were analyzed...
March 25, 2018: European Journal of Clinical Investigation
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