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ecg changes in stroke

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https://www.readbyqxmd.com/read/29198129/hemodynamic-effects-of-epinephrine-in-rats-evaluation-by-impedance-cardiography
#1
C H Turkseven, E Pekoglu, B Buyukakilli
BACKGROUND AND OBJECTIVES: This study was aimed to examine how inotropic effects of intravenously injected epinephrine change thoracic impedance measurements and to reveal the possible effects of this change on other hemodynamic parameters by using the technique of impedance cardiography. METHODS: 10 male Wistar Albino rats were divided into two equal groups: control and epinephrine. 0.2 mg/kg of epinephrine was administered to the rats in the epinephrine group via the tail vein...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/29197472/frequency-of-inverted-electrocardiographic-t-waves-cerebral-t-waves-in-patients-with-acute-strokes-and-their-relation-to-left-ventricular-wall-motion-abnormalities
#2
Jeremy Stone, Victor Mor-Avi, Agnieszka Ardelt, Roberto M Lang
Transient, symmetric, and deep inverted electrocardiogram (ECG) T waves in the setting of stroke, commonly referred to as cerebral T waves, are rare, and the underlying mechanism is unclear. Our study aimed to test the hypothesis that cerebral T waves are associated with transient cardiac dysfunction. This retrospective study included 800 patients admitted with the primary diagnosis of hemorrhagic or ischemic stroke. ECGs were examined for cerebral T waves, defined as T-wave inversion of ≥5 mm depth in ≥4 contiguous precordial leads...
November 14, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/29171136/prevalence-and-prognostic-impact-of-electrocardiographic-abnormalities-in-outpatients-with-extracardiac-artery-disease
#3
Per Hysing, Tommy Jonason, Jerzy Leppert, Pär Hedberg
Identifying cardiac disease in patients with extracardiac artery disease (ECAD) is essential for clinical decision-making. Electrocardiography (ECG) is an easily accessible tool to unmask subclinical cardiac disease and to risk stratify patient with or without manifest cardiovascular disease (CV). We aimed to examine the prevalence and prognostic impact of ECG changes in outpatients with ECAD. Outpatients with carotid or lower extremity artery disease (n = 435) and community-based controls (n = 397) underwent resting ECG...
November 24, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/29167390/early-elevated-troponin-levels-after-ischemic-stroke-suggests-a-cardioembolic-source
#4
Shadi Yaghi, Andrew D Chang, Brittany A Ricci, Mahesh V Jayaraman, Ryan A McTaggart, Morgan Hemendinger, Priya Narwal, Katarina Dakay, Brian MacGrory, Shawna M Cutting, Tina M Burton, Christopher Song, Emile Mehanna, Matthew Siket, Tracy E Madsen, Michael Reznik, Alexander E Merkler, Michael P Lerario, Hooman Kamel, Mitchell S V Elkind, Karen L Furie
BACKGROUND AND PURPOSE: Elevated cardiac troponin is a marker of cardiac disease and has been recently shown to be associated with embolic stroke risk. We hypothesize that early elevated troponin levels in the acute stroke setting are more prevalent in patients with embolic stroke subtypes (cardioembolic and embolic stroke of unknown source) as opposed to noncardioembolic subtypes (large-vessel disease, small-vessel disease, and other). METHODS: We abstracted data from our prospective ischemic stroke database and included all patients with ischemic stroke during a 22-month period...
November 22, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29130017/clinical-characteristics-management-and-outcomes-of-suspected-poststroke-acute-coronary-syndrome
#5
Sylvia Marie Biso, Marvin Lu, Toni Anne De Venecia, Supakanya Wongrakpanich, Mary Rodriguez-Ziccardi, Sujani Yadlapati, Marina Kishlyansky, Harish Seetha Rammohan, Vincent M Figueredo
Background: Acute coronary syndrome (ACS) can complicate acute ischemic stroke, causing significant morbidity and mortality. To date, literatures that describe poststroke acute coronary syndrome and its morbidity and mortality burden are lacking. Methods: This is a single center, retrospective study where clinical characteristics, cardiac evaluation, and management of patients with suspected poststroke ACS were compared and analyzed for their association with inpatient mortality and 1-year all-cause mortality...
2017: Cardiology Research and Practice
https://www.readbyqxmd.com/read/29121723/atrial-fibrillation-and-use-of-antithrombotic-medications-in-older-people-a-population-based-study
#6
Mozhu Ding, Laura Fratiglioni, Kristina Johnell, Johan Fastbom, Maria Ljungdahl, Chengxuan Qiu
BACKGROUND: Trends in the use of antithrombotic drugs in elderly patients with atrial fibrillation (AF) are largely unknown. We estimated the prevalence of AF in an older population, and examined whether use of anticoagulant and antiplatelet drugs in older AF patients has changed over time. METHODS: Data from the population-based Swedish National study on Aging and Care in Kungsholmen (n=3363, age≥60years, 64.9% women) were used (2001-2004 and 2007-2010). AF cases were identified through 12-lead electrocardiogram, physician examinations, and patient register records (ICD-10 code I48)...
December 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29117189/cardiac-cycle-synchronized-electrical-muscle-stimulator-for-lower-limb-training-with-the-potential-to-reduce-the-heart-s-pumping-workload
#7
Ken-Ichiro Sasaki, Hiroo Matsuse, Ryuji Akimoto, Shiro Kamiya, Toshio Moritani, Motoki Sasaki, Yuta Ishizaki, Masanori Ohtsuka, Takaharu Nakayoshi, Takafumi Ueno, Naoto Shiba, Yoshihiro Fukumoto
BACKGROUND: The lower limb muscle may play an important role in decreasing the heart's pumping workload. Aging and inactivity cause atrophy and weakness of the muscle, leading to a loss of the heart-assisting role. An electrical lower limb muscle stimulator can prevent atrophy and weakness more effectively than conventional resistance training; however, it has been reported to increase the heart's pumping workload in some situations. Therefore, more effective tools should be developed...
2017: PloS One
https://www.readbyqxmd.com/read/29101116/counterclockwise-and-clockwise-rotation-of-qrs-transitional-zone-prospective-correlates-of-change-and-time-varying-associations-with-cardiovascular-outcomes
#8
Siddharth Patel, Lucia Kwak, Sunil K Agarwal, Larisa G Tereshchenko, Josef Coresh, Elsayed Z Soliman, Kunihiro Matsushita
BACKGROUND: A few studies have recently reported clockwise and counterclockwise rotations of QRS transition zone as predictors of mortality. However, their prospective correlates and associations with individual cardiovascular disease (CVD) outcomes are yet to be investigated. METHODS AND RESULTS: Among 13 567 ARIC (Atherosclerosis Risk in Communities) study participants aged 45 to 64 years, we studied key correlates of changes in the status of clockwise and counterclockwise rotation over time as well as the association of rotation status with incidence of coronary heart disease (2408 events), heart failure (2196 events), stroke (991 events), composite CVD (4124 events), 898 CVD deaths, and 3469 non-CVD deaths over 23 years of follow-up...
November 3, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29082335/atrial-fibrillation-trial-to-evaluate-real-world-procedures-for-their-utility-in-helping-to-lower-stroke-events-after-pulse-study-protocol-for-a-randomized-controlled-trial
#9
Tsung-Ta Hsieh, Meng Lee, Wen-Yi Huang, Sung-Chun Tang, Sheng-Feng Sung, Kuo-Husan Chang, Jiann-Der Lee, Tsong-Hai Lee, Yung-Sung Huang, Jiann-Shing Jeng, Chang-Min Chung, Yi-Ling Wu, Bruce Ovbiagele
BACKGROUND: Enhancing detection of undiagnosed atrial fibrillation (AF) in hospitalized patients with a recent ischemic stroke is important because of the treatment implications; especially since presence of paroxysmal AF may not be picked up in a single 12-lead electrocardiogram (ECG) test. While several trials have shown improved detection of AF with prolonged ECG monitoring, this strategy is associated with relatively high cost, labor intensity, and patient inconvenience, thereby making it challenging to routinely implement in all hospitals...
June 2017: Contemporary Clinical Trials Communications
https://www.readbyqxmd.com/read/29029934/ability-of-pulse-wave-transit-time-to-detect-changes-in-stroke-volume-and-to-estimate-cardiac-output-compared-to-thermodilution-technique-in-isoflurane-anaesthetised-dogs
#10
H Sano, J P Chambers
OBJECTIVE: To evaluate the ability of pulse wave transit time (PWTT) to detect changes in stroke volume (SV) and to estimate cardiac output (CO) compared with the thermodilution technique in isoflurane-anaesthetized dogs. STUDY DESIGN: Prospective, experimental study. ANIMALS: Eight adult laboratory dogs. METHODS: The dogs were anaesthetized with isoflurane and mechanically ventilated. Reference CO (TDCO) was measured via a pulmonary artery catheter using the thermodilution technique and reference SV (TDSV) was calculated...
April 26, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/28982671/cohort-study-of-ecg-left-ventricular-hypertrophy-trajectories-ethnic-disparities-associations-with-cardiovascular-outcomes-and-clinical-utility
#11
Carlos Iribarren, Alfred D Round, Meng Lu, Peter M Okin, Edward J McNulty
BACKGROUND: ECG left ventricular hypertrophy (LVH) is a well-known predictor of cardiovascular disease. However, no prior study has characterized patterns of presence/absence of ECG LVH ("ECG LVH trajectories") across the adult lifespan in both sexes and across ethnicities. We examined: (1) correlates of ECG LVH trajectories; (2) the association of ECG LVH trajectories with incident coronary heart disease, transient ischemic attack, ischemic stroke, hemorrhagic stroke, and heart failure; and (3) reclassification of cardiovascular disease risk using ECG LVH trajectories...
October 5, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28974832/qtc-interval-prolongation-and-hemorrhagic-stroke-any-difference-between-acute-spontaneous-intracerebral-hemorrhage-and-acute-non-traumatic-subarachnoid-hemorrhage
#12
Osama Shukir Muhammed Amin, Sarwer Jamal Al-Bajalan, Alaa Mubarak
BACKGROUND: A variety of ECG changes occur as an aftermath of stroke. Prolongation of the QTc interval is a well-documented change. We analyzed QTc interval prolongation among patients with acute hemorrhagic strokes. METHODS: This observational study was conducted at the Emergency Department of Sulaymaniyah General Teaching Hospital and Shar Hospital from September 1(st), 2014 to August 31(st), 2015. Fifty patients who developed acute spontaneous hypertensive intracerebral hemorrhage (ICH) and 50 patients who developed acute non-traumatic subarachnoid hemorrhage (SAH) were included in the study...
June 2017: Medical Archives
https://www.readbyqxmd.com/read/28951384/atrial-fibrillation-screening-in-nonmetropolitan-areas-using-a-telehealth-surveillance-system-with-an-embedded-cloud-computing-algorithm-prospective-pilot-study
#13
Ying-Hsien Chen, Chi-Sheng Hung, Ching-Chang Huang, Yu-Chien Hung, Juey-Jen Hwang, Yi-Lwun Ho
BACKGROUND: Atrial fibrillation (AF) is a common form of arrhythmia that is associated with increased risk of stroke and mortality. Detecting AF before the first complication occurs is a recognized priority. No previous studies have examined the feasibility of undertaking AF screening using a telehealth surveillance system with an embedded cloud-computing algorithm; we address this issue in this study. OBJECTIVE: The objective of this study was to evaluate the feasibility of AF screening in nonmetropolitan areas using a telehealth surveillance system with an embedded cloud-computing algorithm...
September 26, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28929326/the-involvement-of-pharmacies-in-the-screening-of-undiagnosed-atrial-fibrillation
#14
Pietro Amedeo Modesti, Gianni Donigaglia, Plinio Fabiani, Nicola Mumoli, Andrea Colella, Maria Boddi
Early identification of atrial fibrillation (AF) is now a priority in cardiovascular prevention because AF is common although often asymptomatic, and is associated with poor outcomes that are highly preventable with appropriate medical treatment. In Italy, AF prevalence among subjects aged ≥65 years ranges from 5 to 6% in observational studies based on the diagnosis recorded by general practitioners to 10-11% in studies where ECG screening is routinely offered. It is thus evident that a large number of subjects are not detected by conventional approach, and new strategies are required to increase early detection of AF...
December 2017: Internal and Emergency Medicine
https://www.readbyqxmd.com/read/28887332/the-cerebro-cardiovascular-response-to-periodic-squat-stand-maneuvers-in-healthy-subjects-a-time-domain-analysis
#15
Sam C Barnes, Naomi Ball, Victoria Joanna Haunton, Thompson G Robinson, Ronney B Panerai
BACKGROUND: Squat-stand maneuvers (SSMs) have been used to improve the coherence of transfer function analysis (TFA) estimates during the assessment of dynamic cerebral autoregulation (dCA). There is a need to understand the influence of peripheral changes resulting from SSMs on cerebral blood flow, which might confound estimates of dCA. METHODS: 29 healthy subjects underwent recordings at rest (5 min standing) and 15 SSMs (0.05Hz). Heart rate (3-lead ECG), end-tidal CO2 (capnography), blood pressure (Finometer), cerebral blood velocity (CBV, transcranial Doppler, MCA) and the angle of the thigh (tilt sensor) were measured continuously...
September 8, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28877510/heart-rate-variability-modifications-induced-by-high-doses-of-incobotulinumtoxina-and-onabotulinumtoxina-in-hemiplegic-chronic-stroke-patients-a-single-blind-randomized-controlled-crossover-pilot-study
#16
Alessio Baricich, Elisa Grana, Stefano Carda, Andrea Santamato, Claudio Molinari, Carlo Cisari, Marco Invernizzi
BACKGROUND: Botulinum toxin type A is a valid and safe treatment for focal spasticity, with documented effects on both sympathetic and parasympathetic systems. Heart rate variability can provide detailed information about the control of the autonomic nervous system on cardiovascular activities. Previous studies in literature showed no significant changes in Heart Rate Variability with doses >600 U of incobotulinumtoxinA in chronic post stroke spastic patients; however, at present time, these results have not been confirmed with doses >600 U of onabotulinumtoxinA...
November 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28875040/a-review-of-neurogenic-stunned-myocardium
#17
REVIEW
Sylvia Biso, Supakanya Wongrakpanich, Akanksha Agrawal, Sujani Yadlapati, Marina Kishlyansky, Vincent Figueredo
Neurologic stunned myocardium (NSM) is a phenomenon where neurologic events give rise to cardiac abnormalities. Neurologic events like stroke and seizures cause sympathetic storm and autonomic dysregulation that result in myocardial injury. The clinical presentation can involve troponin elevation, left ventricular dysfunction, and ECG changes. These findings are similar to Takotsubo cardiomyopathy and acute coronary syndrome. It is difficult to distinguish NSM from acute coronary syndrome based on clinical presentation alone...
2017: Cardiovascular Psychiatry and Neurology
https://www.readbyqxmd.com/read/28851409/mobile-phones-in-cryptogenic-stroke-patients-bringing-single-lead-ecgs-for-atrial-fibrillation-detection-mobile-af-study-protocol-for-a-randomised-controlled-trial
#18
Roderick W Treskes, Willem Gielen, Marieke J Wermer, Robert W Grauss, Anouk P van Alem, Reza Alizadeh Dehnavi, Charles J Kirchhof, Enno T van der Velde, Arie C Maan, Ron Wolterbeek, Onno M Overbeek, Martin J Schalij, Serge A Trines
BACKGROUND: Recently published randomised clinical trials indicate that prolonged electrocardiom (ECG) monitoring might enhance the detection of paroxysmal atrial fibrillation (AF) in cryptogenic stroke or transient ischaemic attack (TIA) patients. A device that might be suitable for prolonged ECG monitoring is a smartphone-compatible ECG device (Kardia Mobile, Alivecor, San Francisco, CA, USA) that allows the patient to record a single-lead ECG without the presence of trained health care staff...
August 29, 2017: Trials
https://www.readbyqxmd.com/read/28808846/age-related-changes-in-morphology-of-left-atrial-appendage-in-patients-with-atrial-fibrillation
#19
Yukina Hirata, Kenya Kusunose, Hirotsugu Yamada, Rikuto Shimizu, Yuta Torii, Susumu Nishio, Yoshihito Saijo, Shoichiro Takao, Takeshi Soeki, Masataka Sata
The purpose of this study was to evaluate the relationship between age and frequency of left atrial appendage (LAA) morphology in patients with atrial fibrillation (AF) compared with sinus rhythm (SR). We enrolled 145 AF patients, and 199 SR patients for the control group without any cardiovascular disease. LAA volume index (LAAVi) and morphology were assessed by electrocardiogram-gated computed tomography angiography. LAA morphology was classified into "chicken wing" or "non-chicken wing" according to the previously described classification...
August 14, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28772106/frontal-plane-t-wave-axis-orientation-predicts-coronary-events-findings-from-the-moli-sani-study
#20
Licia Iacoviello, Marialaura Bonaccio, Augusto Di Castelnuovo, Simona Costanzo, Livia Rago, Amalia De Curtis, Deodato Assanelli, Fabio Badilini, Martino Vaglio, Mariarosaria Persichillo, Peter W Macfarlane, Chiara Cerletti, Maria Benedetta Donati, Giovanni de Gaetano
BACKGROUND AND AIMS: The orientation of the frontal plane T-wave axis (T axis) is a reliable measure of ventricular repolarisation. We investigated the association between T-axis and the risk of coronary heart disease (CHD), heart failure (HF), atrial fibrillation (AF), stroke and cardiovascular (CVD) mortality. METHODS: A sample of 21,287 Moli-sani participants randomly recruited from the general adult (≥35 y) Italian population, free of CVD disease, were followed for a median of 4...
July 22, 2017: Atherosclerosis
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