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wide complex tachycardia

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https://www.readbyqxmd.com/read/28324925/non-invasive-imaging-of-ventricular-activation-during-pacing-and-arrhythmia-methods-and-validation
#1
Long Yu, Steven Pogwizd, Bin He
Cardiovascular disease continued to be a leading killer world widely. Each year, about 400,000 cases of sudden cardiac arrest are reported in the U.S. alone. Clinically, radio-frequency ablative procedure has become widely applied in the treatment of ventricular arrhythmia. Non-invasive approaches have been demonstrated to be able to provide important information on the arrhythmogenesis and potentially assist in the clinical practice. In this work, we develop and validate a novel temporal sparse based imaging method, Cardiac Electrical Sparse Imaging (CESI)...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28298182/electrocardiogram-his-bundle-potentials-can-be-recorded-noninvasively-beat-by-beat-on-surface-electrocardiogram
#2
Gaopin Wang, Renguang Liu, Qinghua Chang, Zhaolong Xu, Yingjie Zhang, Dianzhu Pan
BACKGROUND: The micro waveform of His bundle potential can't be recorded beat-to-beat on surface electrocardiogram yet. We have found that the micro-wavelets before QRS complex may be related to atrioventricular conduction system potentials. This study is to explore the possibility of His bundle potential can be noninvasively recorded on surface electrocardiogram. METHODS: We randomized 65 patients undergoing radiofrequency catheter ablation of paroxysmal superventricular tachycardia (exclude overt Wolff-Parkinson-White syndrome) to receive "conventional electrocardiogram" and "new electrocardiogram" before the procedure...
March 15, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28242641/wide-complex-tachycardia-on-telemetry-what-is-the-diagnosis
#3
Santosh K Padala, Gautham Kalahasty, Kenneth A Ellenbogen
No abstract text is available yet for this article.
February 28, 2017: Circulation
https://www.readbyqxmd.com/read/28226451/non-invasive-imaging-of-ventricular-activation-during-pacing-and-arrhythmia-methods-and-validation
#4
Long Yu, Steven Pogwizd, Bin He, Long Yu, Steven Pogwizd, Bin He, Bin He, Steven Pogwizd, Long Yu
Cardiovascular disease continued to be a leading killer world widely. Each year, about 400,000 cases of sudden cardiac arrest are reported in the U.S. alone. Clinically, radio-frequency ablative procedure has become widely applied in the treatment of ventricular arrhythmia. Non-invasive approaches have been demonstrated to be able to provide important information on the arrhythmogenesis and potentially assist in the clinical practice. In this work, we develop and validate a novel temporal sparse based imaging method, Cardiac Electrical Sparse Imaging (CESI)...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28127223/irregular-wide-complex-tachycardia-in-a-young-man
#5
Jamal Kheyi, Ali Chaib
No abstract text is available yet for this article.
January 2017: Journal of the Saudi Heart Association
https://www.readbyqxmd.com/read/28127222/full-disclosure-unraveling-the-mystery-of-a-wide-complex-tachycardia
#6
Mohammed Zahrani, Kevin Wolfe, Colette Seifer
Wide complex tachycardia is not uncommon in patients with underlying structural heart disease and reduced ejection fraction. It is important to make the correct diagnosis as it carries prognostic and clinical implications. We present a case of a challenging wide complex rhythm detected on remote telemetry monitoring. This case outlines the differential diagnosis of a wide complex tachycardia and the clues to making a diagnosis of artifact. It highlights the importance of correct diagnosis as an incorrect diagnosis may lead to inappropriate treatments and unnecessary investigations...
January 2017: Journal of the Saudi Heart Association
https://www.readbyqxmd.com/read/28045723/rate-dependent-left-bundle-branch-block-in-an-ambulatory-surgery-patient-a-case-report
#7
Ashraf Farag, Justin Tsai, Sam Deeb, Deidre Putman-Garcia, John D Wasnick, Lydia A Conlay
A 52-year-old woman, ASA II (American Society of Anesthesia classification II) scheduled for cholecystectomy in an ambulatory center, exhibited a wide-complex tachycardia with ectopy on the monitor after induction with propofol and succinylcholine. Blood pressure remained stable; amiodarone was administered for presumed ventricular tachycardia. A 12-lead electrocardiogram (ECG) showed a new left bundle branch block (LBBB) at 98 beats per minute (bpm), which resolved when the heart rate slowed. Surgery was postponed, and both the LBBB and ectopy recurred frequently during the next 24 hours in the intensive care unit, particularly at heart rates >90 bpm...
February 15, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/27979413/a-forgotten-cause-of-wide-complex-tachycardia
#8
Vivek Reddy, Yaoyun Sarah Shen, Shanker Kundumadam, Pradeep Kathi, Mazhar H Khan
Wide complex tachycardia secondary to an acute overdose from TCA's is a well-documented phenomenon. In this case we present a wide complex tachycardia after clear documentation of no acute overdose, which responded to standard treatment for TCA toxicity. These findings combined with chronic electrocardiographic abnormalities were suggestive of an acute on chronic TCA toxicity.
March 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/27909497/persistent-atrial-fibrillation-and-atrial-flutter-complicated-by-tachycardiomyopathy-because-of-intermittent-conduction-through-accessory-pathway
#9
L Valeri, A Coppolino, G Rossetti, A Vado, G Amoroso, G Bricco, A Battisti, L Correndo, S Dogliani, A Magliarditi, D Pancaldo, M De Benedictis, A Bassignana, B Doronzo
The term tachycardiomyopathy refers to a specific form of tachycardia-related cardiomyopathy caused by supraventricular or ventricular tachyarrhytmias that are both associated with ventricular rates higher than 120 bpm. The arrhythmias which are most frequently associated with these forms of heart disease are atrial fibrillation and atrial flutter, particularly found in the elderly population. The most frequent clinical manifestation is heart failure. In this case we are reporting a clinical case of a patient that came to our attention because of an episode of heart failure associated with atrial fibrillation and atrial flutter...
April 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27909480/a-case-of-wide-complex-tachycardia-in-a-patient-with-a-biventricular-assist-device
#10
Abrams Mark P, Whang William, Iyer Vivek, Garan Hasan, Biviano Angelo
This case report highlights the variety of wide complex tachycardias, and the need for their prompt management, in the growing population of patients with circulatory support devices. We present a case that demonstrates how a wide complex supraventricular tachycardia in a patient with a biventricular assist device can be safely and effectively targeted for treatment using percutaneous radiofrequency catheter ablation, allowing for clinical improvement, weaning of RVAD treatment, and discharge home with LVAD alone...
February 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27844192/-right-bundle-branch-block-during-right-ventricular-pacing
#11
Harilaos Bogossian, Fuad Hasan, Gerrit Frommeyer, Bernd Lemke, Markus Zarse
INTRODUCTION: We describe the case of a 78-year-old patient who presented for ablation of a wide complex tachycardia with right bundle branch block (RBBB) morphology. A pacemaker spike at the QRS onset indicated supraventricular tachycardia with AV synchronous ventricular pacemaker activation. METHODS: Correct positioning of the ventricular lead in the right ventricular apex was confirmed by fluoroscopy and echocardiography, excluding malpositioning of the right ventricular lead...
November 14, 2016: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/27843001/wide-qrs-complex-tachycardia-after-atropine-eye-drop-instillation-as-the-first-manifestation-of-steinert-disease
#12
Jesús Olmedo Llanes, Raúl López Salguero, Antonio Ruiz Serrato, Antonio Cordero Aguilar
No abstract text is available yet for this article.
November 11, 2016: Revista Española de Cardiología
https://www.readbyqxmd.com/read/27814325/fatal-cardiac-arrest-in-2-children-possible-role-of-ondansetron
#13
Scott M Brenner, Jenny Boucher
INTRODUCTION: Ondansetron is commonly used to treat vomiting in gastroenteritis, but has a United States Food and Drug Administration black box warning for risk of Q wave to T wave time interval (QT) prolongation. We report 2 pediatric cases of fatal refractory cardiac arrest after administration of ondansetron. CASES: A 10-year-old previously healthy boy presented to the emergency room with gastroenteritis symptoms. After intravenous fluids, morphine, antibiotics, and 2 doses of ondansetron, the patient became unresponsive with agonal respirations and a wide complex tachycardia consistent with ventricular tachycardia...
November 2016: Pediatric Emergency Care
https://www.readbyqxmd.com/read/27802498/an-unusually-wide-qrs-complex-tachycardia-in-a-patient-with-hemodynamic-instability
#14
Yue-Chun Li, Jia-Feng Lin, Peng Chen
No abstract text is available yet for this article.
December 1, 2016: JAMA Internal Medicine
https://www.readbyqxmd.com/read/27757923/preparation-and-characterization-of-the-sulfobutylether-%C3%AE-cyclodextrin-inclusion-complex-of-amiodarone-hydrochloride-with-enhanced-oral-bioavailability-in-fasted-state
#15
Dandan Wang, Guoguang Chen, Lili Ren
Amiodarone hydrochloride (AMD) is used in the treatment of a wide range of cardiac tachyarrhythmias, including both ventricular fibrillation (VF) and hemodynamically unstable ventricular tachycardia (VT). The objectives of this study were to improve the solubility and bioavailability in fasted state and to reduce the food effect of AMD by producing its inclusion complex with sulfobutylether-β-cyclodextrin (SBE-β-CD). The complex was prepared through a saturated water solution combined with the freeze-drying method and then characterized by Fourier transform infrared spectroscopy, proton nuclear magnetic resonance spectroscopy, and differential scanning calorimetry...
October 18, 2016: AAPS PharmSciTech
https://www.readbyqxmd.com/read/27753716/reentry-tachycardia-in-children-adenosine-can-make-it-worse
#16
Maximilian D Hien, Fernando Benito Castro, Philippe Fournier, Anne Filleron, Tu-Anh Tran
OBJECTIVES: We report on a rare but severe complication of adenosine use in a child with reentry tachycardia. METHODS AND RESULTS: Treatment with adenosine, which is the standard medical therapy of atrioventricular reentry tachycardia, led to the development of an irregular wide complex tachycardia, caused by rapid ventricular response to atrial fibrillation. The girl was finally stabilized with electrical cardioversion. We analyze the pathomechanism and discuss possible treatment options...
October 8, 2016: Pediatric Emergency Care
https://www.readbyqxmd.com/read/27694034/comparison-of-standard-and-lewis-ecg-in-detection-of-atrioventricular-dissociation-in-patients-with-wide-qrs-tachycardia
#17
Uğur Aksu, Kamuran Kalkan, Oktay Gülcü, Selim Topcu, Serdar Sevimli, Enbiya Aksakal, Emrah Ipek, Mahmut Açıkel, Ibrahim Halil Tanboğa
BACKGROUND: The atrioventricular (AV) dissociation, which is frequently used in differential diagnosis of wide QRS complex tachycardia (WQCT), is the most specific finding of ventricular tachycardia (VT) with lower sensitivity. Herein, we aimed to show the importance of Lewis lead ECG records to detect 'visible p waves' during WQCT. METHOD: A total of 21 consecutive patients who underwent electrophysiologic study (EPS) were included in the study. During EPS, by using a quadripolar diagnostic catheter directed to the right ventricular apex, a fixed stimulus was given and the ventriculoatrial (VA) Wenkebach point was found, and a VT was simulated by a RV apical stimulus at 300ms...
December 15, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27659255/-wide-narrow-wide-qrs-complex-tachycardia-what-is-the-mechanism
#18
Vincenzo Carbone, Alessio Poggi, Vincenzo Marafioti, Giuseppe Oreto
No abstract text is available yet for this article.
October 2016: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/27521096/sustained-ventricular-tachycardia-in-apparently-normal-hearts-medical-therapy-should-be-the-first-step-in%C3%A2-management
#19
REVIEW
Ali Kazemi Saeid, George J Klein, Peter Leong-Sit
Sustained monomorphic ventricular tachycardia or repetitive premature ventricular complexes can be seen in patients with structurally normal hearts. Among these types of patients, the prognosis is predominantly benign and the treatment mostly focused on elimination of symptoms rather than improving survival or reduction of mortality. This article focuses on the pharmacologic options for management and compares them with invasive options. Based on the current literature, we demonstrate that medical therapies should be used as first-line management and favored over invasive therapies...
September 2016: Cardiac Electrophysiology Clinics
https://www.readbyqxmd.com/read/27521090/spectrum-of-fascicular-arrhythmias
#20
REVIEW
Raphael Sung, Melvin Scheinman
Fascicular arrhythmias encompass a wide spectrum of ventricular arrhythmias that depend on the specialized conduction system of the right and left ventricles. These arrhythmias include premature ventricular complexes, monomorphic ventricular tachycardia, polymorphic ventricular tachycardia, and ventricular fibrillation. These arrhythmias may be organized by mechanism, including intrafascicular reentry, interfascicular reentry, and focal. Mapping and ablation of the fascicular system can result in high cure rates of debilitating and potentially life-threatening arrhythmias...
September 2016: Cardiac Electrophysiology Clinics
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