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Exercise ECG

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https://www.readbyqxmd.com/read/27910284/resting-heart-rate-is-an-independent-predictor-of-death-in-patients-with-colorectal-pancreatic-and-non-small-cell-lung-cancer-results-of-a-prospective-cardiovascular-long-term-study
#1
Markus S Anker, Nicole Ebner, Bert Hildebrandt, Jochen Springer, Marianne Sinn, Hanno Riess, Stefan D Anker, Ulf Landmesser, Wilhelm Haverkamp, Stephan von Haehling
AIMS: Patients with advanced cancer have been shown to suffer from abnormal cardiac function and impaired exercise capacity that may contribute to their impaired quality of life. As tachycardia is considered as a sign of potential early cardiac damage, we sought to determine whether resting heart rate and other ECG-derived variables have prognostic value. METHODS AND RESULTS: From 2005 to 2010, we enrolled 145 patients with histologically confirmed cancer (36 colorectal, 72 pancreatic, and 37 non-small cell lung cancer patients) and 59 healthy controls...
December 2016: European Journal of Heart Failure
https://www.readbyqxmd.com/read/27899826/an-elective-course-in-cardiovascular-electrophysiology-for-pharmacy-learners
#2
Diptiman D Bose
Objective. To implement an integrated, comprehensive, and learner-centered elective course focused at exposing learners to the interpretation of electrocardiograms and highlighting the mechanisms underlining the abnormal electrophysiological events. Design. Learners were presented with foundational information on the mechanisms underlying electrophysiological changes associated with the development of arrhythmias. They then discussed the interpretation of electrocardiogram (ECG) recordings and diagnosis of cardiovascular events...
October 25, 2016: American Journal of Pharmaceutical Education
https://www.readbyqxmd.com/read/27896702/safety-of-regadenoson-stress-testing-in-patients-with-pulmonary-hypertension
#3
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/27894294/appropriate-threshold-levels-of-cardiac-beat-to-beat-variation-in-semi-automatic-analysis-of-equine-ecg-recordings
#4
Mette Flethøj, Jørgen K Kanters, Philip J Pedersen, Maria M Haugaard, Helena Carstensen, Lisbeth H Olsen, Rikke Buhl
BACKGROUND: Although premature beats are a matter of concern in horses, the interpretation of equine ECG recordings is complicated by a lack of standardized analysis criteria and a limited knowledge of the normal beat-to-beat variation of equine cardiac rhythm. The purpose of this study was to determine the appropriate threshold levels of maximum acceptable deviation of RR intervals in equine ECG analysis, and to evaluate a novel two-step timing algorithm by quantifying the frequency of arrhythmias in a cohort of healthy adult endurance horses...
November 28, 2016: BMC Veterinary Research
https://www.readbyqxmd.com/read/27881424/temporal-reduction-in-chronotropic-index-predicts-risk-of-cardiovascular-death-among-healthy-middle-aged-men-a-28-year-follow-up-study
#5
Kristian Engeseth, Christian Hodnesdal, Irene Grundvold, Knut Liestøl, Knut Gjesdal, Sverre E Kjeldsen, Jan E Erikssen, Johan Bodegard, Per Torger Skretteberg
BACKGROUND: Chronotropic index is a standardized measure of heart rate (HR) increment during exercise that reflects the combined effects of age, resting HR, and physical fitness. Low chronotropic index has been reported to predict disease and death. We tested whether temporal change in chronotropic index over 7 years influenced risk of cardiovascular death through up to 28 years. METHODS AND RESULTS: Chronotropic index was calculated ([achieved maximal HR-resting HR]/[age-predicted maximal HR-resting HR]) after a symptom-limited bicycle ECG exercise test in 1420 healthy men at 2 examinations 7 years apart, in 1972 and 1979...
November 23, 2016: Journal of the American Heart Association
https://www.readbyqxmd.com/read/27875477/smartphone-based-arrhythmia-monitoring
#6
Paul Garabelli, Stavros Stavrakis, Sunny Po
The use of smartphones for arrhythmia monitoring is another leap for ECG utilization and arrhythmia detection - effectively taking the technology to any smartphone user. Smart wearable technology, while very common, is limited mostly to activity tracking and exercise motivation. Rhythm strip generating smartphone products (Kardia Mobile by AliveCor and ECG Check by Cardiac Designs) are more powerful at arrhythmia detection than wearable monitors. These products, which have been studied in a variety of situations, rely on an external device with metal sensors to create a rhythm strip, which is usually Lead I...
January 2017: Current Opinion in 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
#7
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/27847560/left-ventricular-false-tendons-and-electrocardiogram-repolarization-abnormalities-in-healthy-young-subjects
#8
Zlatan Lazarevic, Emanuela Ciminelli, Federico Quaranta, Fabio Sperandii, Emanuele Guerra, Fabio Pigozzi, Paolo Borrione
AIM: To describe echocardiographically left ventricular false tendon characteristics and the correlation with ventricular repolarization abnormalities in young athletes. METHODS: Three hundred and sixteen healthy young athletes from different sport disciplines were evaluated from 2009 to 2011 during routine screening for agonistic sports eligibility. All subjects, as part of standard pre-participation screening medical evaluation, underwent a basal and post step test 12-lead electrocardiogram (ECG)...
October 26, 2016: World Journal of Cardiology
https://www.readbyqxmd.com/read/27806460/importance-of-comprehensive-cardiovascular-screening-in-patients-scheduled-for-kidney-donation
#9
Hala Soomro, Aisha Rasool Saand, Zaid Soomro, Mustafa Naseer, Zohaib Farrukh, Arbab Burhan Uddin Kasi, Sarah Hamid, Anika Bilal, Madiha Ahmed, Ali Raza, Tahreem Ahmad, Saif Raza, Ayyaz Alam Sultan, Rohail Jameel, Maaz Hasan Khan, Maha Begg
INTRODUCTION: End stage renal disease is on the rise in many parts of the world. Kidney transplant is a common procedure and definitive treatment for end stage renal disease. Along with its various advantages, it presents with an array of complications, associated with the procedure. Hence, an effective screening program to identify eligible donors is of crucial importance. The main aim of this study was to identify the frequency of possible undetected cardiovascular abnormalities in scheduled donors and its association with gender...
June 30, 2016: Global Journal of Health Science
https://www.readbyqxmd.com/read/27803634/validation-of-biofeedback-wearables-for-photoplethysmographic-heart-rate-tracking
#10
Edward Jo, Kiana Lewis, Dean Directo, Michael J Kim, Brett A Dolezal
The purpose of this study was to examine the validity of HR measurements by two commercial-use activity trackers in comparison to ECG. Twenty-four healthy participants underwent the same 77-minute protocol during a single visit. Each participant completed an initial rest period of 15 minutes followed by 5 minute periods of each of the following activities: 60W and 120W cycling, walking, jogging, running, resisted arm raises, resisted lunges, and isometric plank. In between each exercise task was a 5-minute rest period...
September 2016: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/27798055/exercise-induced-syncope-in-a-22-year-old-man
#11
Colin Yeo, Vern Hsen Tan, Kelvin Ck Wong
A 22-year-old man was referred to us for syncope during a game of Captain's ball. There was no prodrome. His friends did not notice any ictal movements. He was otherwise well prior to passing out. He was not taking any medications or supplements. He was not usually physically active, but was otherwise well with no significant medical history. This is his first episode of syncope. There was no history of cardiac arrest or seizures. There is no family history of premature sudden cardiac death.Physical examination was normal...
October 25, 2016: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/27793103/the-sphinx-s-riddle-cardiovascular-involvement-in-autoimmune-rheumatic-disease
#12
REVIEW
Sophie Mavrogeni, George Markousis-Mavrogenis, Genovefa Kolovou
Factors leading to Cardiovascular Disease (CVD) in Autoimmune Rheumatic Diseases (ARD) include: a) atherosclerosis and macro-microvascular coronary artery disease b) pericardial, myocardial and vascular inflammation c) heart valve disease d) heart failure and e) pulmonary hypertension.Cardiology utilizes various non-invasive imaging modalities, such as rest/stress Electrocardiogram (ECG), echocardiography, nuclear imaging and more recently Cardiovascular Magnetic Resonance (CMR) to detect ischemic or inflammatory disease in ARD...
October 28, 2016: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/27788999/ecg-monitoring-leads-and-special-leads
#13
REVIEW
Johnson Francis
ECG monitoring is common place in the hospital and even pre-hospital setting. The need for different types of lead systems in different settings has been emphasised. Simple three electrode bipolar recording is ubiquitous for monitoring. This can be used to record modified bipolar chest leads as well. Using five leads gives the option of getting a chest lead in addition to bipolar limb leads, enhancing detection of ischemia during procedures. Lead stability is important when the movement of the subject is maximum as in exercise testing...
May 2016: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/27757187/diagnostic-value-of-electrocardiogram-in-predicting-exaggerated-blood-pressure-response-to-exercise-stress-testing
#14
Ali Eshraghi, Reyhaneh Takalloo Ebdali, Seyed Sajed Sajjadi, Reza Golnezhad
INTRODUCTION: It is believed that an exaggerated blood pressure response (EBPR) to exercise stress test is associated with a higher risk of cardiovascular events. It is also assumed that QT dispersion (QT-d), which was originally proposed to measure the spatial dispersion of ventricular recovery times, may have a relationship to cardiovascular events. The objective of this study was to examine the difference of changes in QT-d, Maxi-QT, Mini-QT, and QT-c (corrected QT interval) of the electrocardiogram in two groups of patients with exaggerated blood pressure responses (EBPR group) and normal responses (control group) to exercise testing...
August 2016: Electronic Physician
https://www.readbyqxmd.com/read/27754982/clinical-feasibility-of-a-new-method-to-identify-chronotropic-incompetence-in-heart-failure-patients
#15
Hui Li, Jingbo Li, Xiaohong Zhou, Jianrong Zhao, Fengru Zhang, Liqun Wu, Hong Shen, Qing Wan, Jing Huang, Shungang Yang, Ping Wang
Heart failure patients have a high incidence of chronotropic incompetence (CI) that receives less clinical attention. This study assessed a method using wearable devices to identify CI in heart failure patients. Twenty-six heart failure patients (LVEF: 43.9  ±  5.7% with LVEF  ⩾40% in 19 patients; age: 52.8  ±  12.4 years, female patients  =  6) were enrolled. Each patient underwent symptom-limited treadmill maximal exercise testing during which the simultaneous recording of ECG Holter and physical activity using Actigraph was conducted...
October 18, 2016: Physiological Measurement
https://www.readbyqxmd.com/read/27749728/validation-of-heart-rate-monitor-polar-rs800-for-heart-rate-variability-analysis-during-exercise
#16
David Hernando, Nuria Garatachea, Rute Almeida, Jose Antonio Casajús, Raquel Bailón
Heart rate variability (HRV) analysis during exercise is an interesting non-invasive tool to measure the cardiovascular response to the stress of exercise. Wearable heart rate monitors are a comfortable option to measure RR intervals while doing physical activities. It is necessary to evaluate the agreement between HRV parameters derived from the RR series recorded by wearable devices and those derived from an ECG during dynamic exercise of low to high intensity.23 male volunteers performed an exercise stress test on a cycle ergometer...
September 27, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27748469/imaging-predictive-factors-and-exercise-training-in-crt-patients
#17
Ana Abreu, Helena Santa Clara
Cardiac resynchronization therapy (CRT) is an established treatment for patients with moderate-to-severe chronic heart failure (CHF) and intraventricular conduction delay, which is identified by a QRS interval of 120msec or more on a 12-lead electrocardiogram (ECG). CRT improved functional capacity, reduced hospitalizations for worsening CHF and increased survival. However, about 30-40% of patients who underwent CRT were non-responders with no clinical or echocardiographic improvement. Imaging parameters for prediction of CRT response have been reviewed...
October 14, 2016: Monaldi Archives for Chest Disease, Archivio Monaldi Per le Malattie del Torace
https://www.readbyqxmd.com/read/27734458/alcohol-septal-ablation-in-hypertrophic-cardiomyopathy-utilizing-a-longitudinal-17-year-study-mean-10-8-observation-follow-ups-taken-at-a-single-medical-centre
#18
Andrzej Wojtarowicz, Zdzisława Kornacewicz-Jach
BACKGROUND: Alcohol septal ablation (ASA) is a method of treatment in obstructive hypertrophic cardiomyopathy (HOCM), but there is little data on the long-term results of ASA and the natural course after treatment. The aim of the study was to evaluate the results of ASA in HOCM in multiannual observation, and its impact on patient survival, exercise capacity, electrical complications, and changes in the anatomy and function of the heart. METHODS: The study evaluated 47 patients with HOCM with a high left ventricular outflow tract (LVOT gradient) treated between 1997 and 2014 with ASA...
October 13, 2016: Cardiology Journal
https://www.readbyqxmd.com/read/27719691/a-survey-of-paediatricians-on-the-use-of-electrocardiogram-for-pre-participation-sports-screening
#19
Angira Patel, Gregory Webster, Kendra Ward, John Lantos
: Aim The aim of the present study was to determine general paediatrician knowledge, practices, and attitudes towards electrocardiogram (ECG) screening in school athletes during pre-participation screening exam (PPSE). METHODS: Paediatricians affiliated with a tertiary children's hospital completed a survey about ECGs for PPSE. RESULTS: In total, 205/498 (41%) responded; 92% of the paediatricians did not include an ECG as part of PPSE; 56% were aware of a case in which a student athlete in their own community had died of sudden unexplained death; 4% had an athlete in their practice die...
October 10, 2016: Cardiology in the Young
https://www.readbyqxmd.com/read/27714716/exercise-induced-changes-in-left-ventricular-global-longitudinal-strain-in-asymptomatic-severe-aortic-stenosis
#20
Agnieszka Krystyna Lech, Piotr Paweł Dobrowolski, Anna Klisiewicz, Piotr Hoffman
BACKGROUND: The management of patients with asymptomatic severe aortic stenosis (ASAS) is still under discussion. Therefore, it is advisable to search for the parameters of early damage to left ventricular function. AIM: The aim of the study was to assess exercise-induced changes in left ventricular global longitudinal strain (GLS) in ASAS. METHODS: The ASAS group consisted of 50 patients (26W/24M, aged 38.4±18.1) meeting the echocardiographic criteria of severe aortic stenosis (AVA<1cm², AVAI<0...
October 7, 2016: Kardiologia Polska
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