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https://www.readbyqxmd.com/read/28734703/the-differential-diagnosis-of-wide-qrs-complex-tachycardia
#1
William J Brady, Amal Mattu, Jeffrey Tabas, John D Ferguson
Wide complex tachycardia is defined as a cardiac rhythm with a rate greater than 100 beats/min (bpm) and a QRS complex duration greater than 0.10 to 0.12seconds (s) in the adult patient; wide complex tachycardia (WCT) in children is defined according to age-related metrics. The differential diagnosis of the WCT includes ventricular tachycardia and supraventricular tachycardia with aberrant intraventricular conduction, including both relatively benign and life-threatening dysrhythmias. This review focuses on the differential diagnosis of WCT with a discussion of strategies useful in making the appropriate diagnosis, when possible...
July 17, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28733766/magnetic-resonance-imaging-in-patients-with-cardiac-implantable-electronic-devices-a-single-center-prospective-study
#2
Mrinal Yadava, Matthew Nugent, Angela Krebsbach, Jessica Minnier, Peter Jessel, Charles A Henrikson
PURPOSE: Cardiac implantable electronic devices (CIEDs) have traditionally been a contraindication for magnetic resonance imaging (MRI). Recent studies suggest that MRI can be conducted safely in select patients with pacemakers (PPMs) and implantable cardioverter defibrillators (ICDs). We sought to determine the safety of MRI in patients with CIEDs, using a protocol for patient selection and device programming. METHODS: This is a prospective, single-center study...
July 22, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28733433/intensive-exercise-training-improves-cardiac-electrical-stability-in-myocardial-infarcted-rats
#3
Horesh Dor-Haim, Chaim Lotan, Michal Horowitz, Moshe Swissa
BACKGROUND: Moderate exercise training has been shown to decrease sudden cardiac death post myocardial infarction. However, the effects of intensive exercise are still controversial. METHODS AND RESULTS: Fourteen myocardial-infarcted rats were divided into sedentary (n=8) and intensive training groups (n=6) and 18 sham control rats to sedentary (n=10) and intensive training groups (n=8). Heart rate variability was obtained at weeks 1 and 8. The inducibility of ventricular tachycardia/fibrillation was assessed in a Langendorff system...
July 21, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28733121/paradoxical-embolism-in-a-girl-with-atrial-septal-defect-after-paroxysmal-supraventricular-tachycardia-ablation
#4
Xiang Chen, Zhijun Zhu, Danning Wu
Paradoxical embolism is a kind of important pathogenesis of cardiocerebrovascular diseases. In our case, radiofrequency current catheter ablation was accomplished successfully in a 15-year-old girl who had been experiencing supraventricular tachycardia for 6 months. She presented with abrupt onset of left hemiplegia and loss of consciousness on the first postoperative day. An urgent cerebral computed tomography showed a hyperdense right middle cerebral artery. Transthoracic echocardiogram examination revealed an atrial septal defect (ASD), with the diameter measuring 39 mm...
July 19, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28733070/spatial-relationship-of-sites-for-atrial-fibrillation-drivers-and-atrial-tachycardia-in-patients-with-both-arrhythmias
#5
Tina Baykaner, Junaid A B Zaman, Albert J Rogers, Rachita Navara, Mahmood AlHusseini, Ryan T Borne, Shirley Park, Paul J Wang, David E Krummen, William H Sauer, Sanjiv M Narayan
INTRODUCTION: Atrial fibrillation (AF) often converts to and from atrial tachycardia (AT), but it is undefined if these rhythms are mechanistically related in such patients. We tested the hypothesis that critical sites for AT may be related to regional AF sources in patients with both rhythms, by mapping their locations and response to ablation on transitions to and from AF. METHODS: From 219 patients undergoing spatial mapping of AF prior to ablation at 3 centers, we enrolled 26 patients in whom AF converted to AT by ablation (n=19) or spontaneously (n=7; left atrial size 42±6cm, 38% persistent AF)...
July 14, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28730880/response-of-narrow-qrs-tachycardia-to-a-premature-ventricular-ectopic-rhythm-what-is-the-mechanism
#6
Krishna Kumar Mohanan Nair, Anees Thajudeen, Narayanan Namboodiri, Ajitkumar Valaparambil
No abstract text is available yet for this article.
July 21, 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/28730649/focal-atrial-tachycardia-from-extremely-high-level-of-superior-vena-cava
#7
Kenichi Tokutake, Seigo Yamashita, Michihiro Yoshimura, Teiichi Yamane
No abstract text is available yet for this article.
July 21, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28730319/management-of-postoperative-junctional-ectopic-tachycardia-in-pediatric-patients-a-survey-of-30-centers-in-germany-austria-and-switzerland
#8
Andreas Entenmann, Miriam Michel, Ulrike Herberg, Nikolaus Haas, Matthias Kumpf, Matthias Gass, Friedemann Egender, Roman Gebauer
Postoperative junctional ectopic tachycardia (JET) is a frequent complication after pediatric cardiac surgery. Current recommendations on how and when to treat JET are inconsistent. We evaluated the management strategies of postoperative JET in German-speaking countries. We sent an online survey to 30 centers of pediatric cardiology that perform surgery for congenital heart defects in Germany (24), Austria (4), and Switzerland (2). The survey asked 18 questions about how and in what treatment sequence postoperative JET was managed...
July 21, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28729050/an-infant-with-concurrent-serotype-6c-invasive-pneumococcal-disease-and-infectious-mononucleosis
#9
Naoko Nishikawa-Nakamura, Takafumi Okada, Keiko Nishimura, Tsuyako Iwai, Kimiko Ubukata, Satoshi Iwata, Asayuki Iwai
Streptococcus pneumoniae is a main causative agent of serious invasive bacterial infections. However, concurrent infection with invasive pneumococcal disease (IPD) and viral infectious mononucleosis (IM) is rare. We report an infant with serotype 6C infection causing IPD occurring simultaneously with IM. A previously healthy 11-month-old girl referred to our hospital because of fever, leukopenia, and elevated C-reactive protein presented to us with disturbance of consciousness, tachycardia, tachypnea and agranulocytosis...
July 17, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28728742/a-clinical-score-model-to-predict-lethal-events-in-young-patients-%C3%A2-19-years-with-the-brugada-syndrome
#10
M Cecilia Gonzalez Corcia, Juan Sieira, Gudrun Pappaert, Carlo de Asmundis, Gian Battista Chierchia, Andrea Sarkozy, Pedro Brugada
Risk stratification in Brugada syndrome in young patients remains challenging. We investigated the clinical characteristics, prognosis, and risk in young patients with the Brugada syndrome. We studied 95 patients with the Brugada syndrome aged ≤19 years. The median age at diagnosis was 12.9 years. The clinical presentation was sudden cardiac death in 7% and syncope in 21%. The remaining 72% were asymptomatic at diagnosis. Electrical abnormalities were present in 36%, including spontaneous type I electrocardiogram (12%), sinus node dysfunction (9%), atrioventricular block (17%), intraventricular conduction delay (16%), and atrial arrhythmias (8%)...
June 15, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28727191/anterior-pericardial-access-to-facilitate-electrophysiology-study-and-catheter-ablation-of-ventricular-arrhythmias-a-single-tertiary-center-experience
#11
Ali R Keramati, Deeptankar DeMazumder, Satish Misra, Jonathan Chrispin, Fabrizio R Assis, Chava Raghuram, Swati Dey, Hugh Calkins, Harikrishna Tandri
INTRODUCTION: Epicardial ablation is becoming an important part of management in patients with ventricular tachycardia (VT). Posterior epicardial access via the Sosa or Needle-in-Needle (NIN) approach for epicardial VT ablation is considered to be the method of choice for most electrophysiologists. Anterior epicardial access as an alternative technique has recently been proposed, but there is limited data about its safety, efficacy and the rate of immediate complications. In this study, we report our experience with anterior epicardial access between 2009 and 2016...
July 20, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28726656/anxiety-levels-in-patients-with-paroxy-smal-supraventricular-tachycardia-in-relation-with-the-patient-demographics-type-of-supraventricular-tachycardia-and-their-personality-type
#12
G Papiashvili, N Tabagari-Bregvadze, J Brugada
The aim of the study was to evaluate the incidence of different personality types and state and trait anxiety levels in patients with paroxysmal supraventricular tachycardia and their association with patients age, gender and the mechanism of the paroxysmal SVT. 62 patients with documented paroxysmal supraventricular tachycardia who underwent endocardial eletrophysiological study and catheter ablation of the paroxysmal SVT were included in the study. The patients were asked to fill out the Myers-Brigss Type Indicator and State-Trait Anxiety Inventory questionnaires and the results were analyzed and correlated with the arrhythmia mechanism determined during electrophysiological study and catheter ablation procedure, and the patients' demographics (age and gender)...
June 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28725326/comparison-of-clopidogrel-with-prasugrel-and-ticagrelor-in-patients-with-acute-coronary-syndrome-clinical-outcomes-from-the-national-cardiovascular-database-action-registry
#13
Mohamed Khayata, Joseph N Gabra, M Farhan Nasser, George I Litman, Shyam Bhakta, Rupesh Raina
BACKGROUND: We aimed to compare the clinical outcomes of clopidogrel, prasugrel, and ticagrelor in clinical practice using the National Cardiovascular Database ACTION Registry(®). Treatment guidelines for patients with acute coronary syndrome (ACS) undergoing percutaneous coronary intervention recommend dual antiplatelet therapy (DAPT) for 12 months. Few clinical trials have compared the safety and efficacy of clopidogrel with that of newer antiplatelet therapies. METHODS: A retrospective study of patients hospitalized for ACS at Cleveland Clinic Akron General was conducted...
June 2017: Cardiology Research
https://www.readbyqxmd.com/read/28724652/correlation-of-admission-heart-rate-with-angiographic-and-clinical-outcomes-in-patients-with-right-coronary-artery-st-segment-elevation-myocardial-infarction-undergoing-primary-percutaneous-coronary-intervention-horizons-ami-the-harmonizing-outcomes-with-revascularization
#14
Ioanna Kosmidou, Thomas McAndrew, Björn Redfors, Monica Embacher, José M Dizon, Roxana Mehran, Ori Ben-Yehuda, Gary S Mintz, Gregg W Stone
BACKGROUND: Bradycardia on presentation is frequently observed in patients with right coronary artery ST-segment elevation myocardial infarction, but it is largely unknown whether it predicts poor angiographic or clinical outcomes in that patient population. We sought to determine the prognostic implications of admission heart rate (AHR) in patients with ST-segment elevation myocardial infarction and a right coronary artery culprit lesion. METHODS AND RESULTS: We analyzed 1460 patients with ST-segment elevation myocardial infarction and a right coronary artery culprit lesion enrolled in the randomized HORIZONS-AMI (Harmonizing Outcomes with Revascularization and Stents in Acute Myocardial Infarction) trial who underwent primary percutaneous coronary intervention...
July 19, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28723900/the-natural-history-of-acute-ebola-virus-disease-among-patients-managed-in-five-ebola-treatment-units-in-west-africa-a-retrospective-cohort-study
#15
Kelly Skrable, Reshma Roshania, Michaela Mallow, Vanessa Wolfman, Matthew Siakor, Adam C Levine
INTRODUCTION: Previous studies of Ebola Virus Disease (EVD) have focused on clinical symptoms and Ebola virus (EBOV) cycle threshold (CT) values recorded at patient triage. Our study explores EVD symptoms and EBOV CT values from onset of illness to recovery or death in a diverse population of patients. METHODOLOGY/PRINCIPAL FINDINGS: We analyzed clinical care data from EBOV positive patients admitted to five Ebola treatment units in West Africa from 2014-2015. Prevalence of clinical signs/symptoms and CT values were explored using descriptive statistics...
July 19, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28722339/structured-pain-management-reduces-patient-discomfort-after-catheter-ablation-and-rhythm-device-surgery
#16
M Dörschner, A Bollmann, B Dinov, S Richter, M Döring, A Arya, A Müssigbrodt, S Kircher, N Dagres, P Sommer, G Hindricks, K Bode
BACKGROUND: The goal was to test the effectiveness of a structured pain management programme after invasive electrophysiological interventions in cardiology including ablation of atrial fibrillation (AF) or ventricular tachycardia (VT) and implantation, or explantation, of pacemakers or implantable cardioverter defibrillators. METHODS: This was a prospective study with a pre-/post-design where a post-intervention group (116 consecutive patients) was compared to a pre-intervention group (102 consecutive patients) after implementation of a structured pain-management programme using the numeric rating scale (NRS 0-10) and classified as moderate-to-severe if NRS > 3...
July 18, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/28722134/location-variations-and-predictors-of-epicardial-fat-mapping-using-multi-detector-computed-tomography-to-assist-epicardial-ventricular-tachycardia-ablation
#17
Mariaileen Sourwine, Jean Jeudy, Brian Miller, Rama Vunnam, Hasan Imanli, Olurotimi Mesubi, Martine Etienne-Mesubi, Vincent See, Stephen Shorofsky, Timm Dickfeld
BACKGROUND: A significant number of ventricular tachycardia circuits are located close to the epicardial surface and are amendable to epicardial ablation. Epicardial fat often interferes with substrate mapping and ablation, though little is known regarding the distribution of fat and its fluctuation with the cardiac cycle. METHODS: We studied 40 patients who underwent a 64-slice MDCT in order to describe patterns of epicardial fat distribution, variation during cardiac cycle and clinical predictors of epicardial fat...
July 19, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28720881/patients-with-orthostatic-intolerance-relationship-to-autonomic-function-tests-results-and-reproducibility-of-symptoms-on-tilt
#18
Hyung Lee, Phillip A Low, Hyun Ah Kim
This study was designed to investigate the frequency and pattern of orthostatic symptoms during head-up tilt (HUT) in patients with orthostatic intolerance during daily life, and to identify the relationship between the orthostatic symptoms during HUT and autonomic parameters. We prospectively collected autonomic data from 464 patients with orthostatic symptoms. Adrenergic and cardiovagal function tests including HUT were performed. Based on HUT results, we divided patients into orthostatic hypotension (OH), postural tachycardia syndrome (POTS), or normal HUT groups...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28720463/incidence-rates-of-guillain-barr%C3%A3-gbs-chronic-fatigue-systemic-exertion-intolerance-disease-cfs-seid-and-postural-orthostatic-tachycardia-syndrome-pots-prior-to-introduction-of-human-papilloma-virus-hpv-vaccination-among-adolescent-girls-in-finland-2002-2012
#19
J Skufca, J Ollgren, E Ruokokoski, O Lyytikäinen, H Nohynek
BACKGROUND: In Finland a vaccination programme against human papillomavirus (HPV) was introduced in November 2013 for girls aged 11-12 years with a catchup for girls 13-15 years. Allegations that HPV vaccine is causing Guillain Barré syndrome (GBS) and non-specific diagnostic entities, such as chronic fatigue syndrome/systemic exertion intolerance disease (CFS/SEID) and postural orthostatic tachycardia syndrome (POTS), continue to surface. We examined population register-based incidence rates of CFS/SEID, GBS and POTS to provide baseline data for future HPV vaccine safety evaluations...
June 2017: Papillomavirus Research
https://www.readbyqxmd.com/read/28720191/sustained-accelerated-idioventricular-rhythm-in-a-centrifuge-simulated-suborbital-spaceflight
#20
Rahul Suresh, Rebecca S Blue, Charles Mathers, Tarah L Castleberry, James M Vanderploeg
INTRODUCTION: Hypergravitational exposures during human centrifugation are known to provoke dysrhythmias, including sinus dysrhythmias/tachycardias, premature atrial/ventricular contractions, and even atrial fibrillations or flutter patterns. However, events are generally short-lived and resolve rapidly after cessation of acceleration. This case report describes a prolonged ectopic ventricular rhythm in response to high G exposure. CASE REPORT: A previously healthy 30-yr-old man voluntarily participated in centrifuge trials as a part of a larger study, experiencing a total of 7 centrifuge runs over 48 h...
August 1, 2017: Aerospace Medicine and Human Performance
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