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wide complex tachycardia

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https://www.readbyqxmd.com/read/29132651/wide-qrs-complex-tachycardia
#1
Elias B Hanna, Colleen J Johnson, D Luke Glancy
In a man with a wide-QRS complex tachycardia, a history of an inferior left ventricular scar, atrioventricular dissociation during the tachycardia, and a QRS morphology inconsistent with right or left bundle branch block exclude a diagnosis of supraventricular tachycardia with aberrant ventricular conduction due to bundle branch block or ventricular preexcitation and establish a diagnosis of ventricular tachycardia.
October 19, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/29115093/a-case-of-multiple-cardiovascular-and-tracheal-anomalies-presented-with-wolff-parkinson-white-syndrome-in-a-middle-aged-adult
#2
Hyejin Shi, Sungmin Sohn, SungHo Wang, Sungrock Park, SangKi Lee, Song Yi Kim, Sun Young Jeong, Changhwan Kim
Congenital cardiovascular anomalies, such as dextrocardia, persistent left superior vena cava (SVC), and pulmonary artery (PA) sling, are rare disorders. These congenital anomalies can occur alone, or coincide with other congenital malformations. In the majority of cases, congenital anomalies are detected early in life by certain signs and symptoms. A 56-year-old man with no previous medical history was admitted due to recurrent wide QRS complex tachycardia with hemodynamic collapse. A chest radiograph showed dextrocardia...
December 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/29071387/-ventricular-arrhythmias-what-has-been-confirmed-in-therapy
#3
REVIEW
D Duncker, J Bauersachs, C Veltmann
Ventricular arrhythmias include a wide range of potentially benign single ventricular premature contractions to ventricular tachycardia and ventricular fibrillation with a risk for sudden cardiac death. The diagnosis of ventricular arrhythmia is made by 12-lead electrocardiogram, 24 h Holter monitoring, an external or implantable loop recorder, or during in-hospital monitoring. Especially the diagnosis of wide complex tachycardias is challenging in terms of differentiating between ventricular tachycardia and supraventricular tachycardia with aberrant atrioventricular conduction...
October 25, 2017: Der Internist
https://www.readbyqxmd.com/read/29067909/atrial-flutter-presenting-as-broad-complex-tachycardia-in-a-patient-with-right-sided-pneumonectomy
#4
Thomas Beiert, Georg Nickenig, Jan Wilko Schrickel, Markus Linhart
A 71-year-old man with no history of coronary artery disease presented with palpitations to the emergency department. The 12-lead ECG showed a regular tachycardia with wide QRS complexes (220 bpm) suggestive of ventricular tachycardia. Instead invasive electrophysiological investigation revealed typical atrial flutter as underlying arrhythmia. The altered QRS morphology resulted from displacement of the heart into the right hemithorax due to right-sided pneumonectomy in combination with bundle branch block.
July 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29038823/left-ventricular-twist-in-hypertrophic-cardiomyopathy-predictor-of-nonsustained-ventricular-tachycardia
#5
O Candan, C Gecmen, A Kalaycı, E Bayam, A Guner, S Gunduz, S Cersit, M Ozkan
BACKGROUND: We investigated the efficacy of clinical and classic echocardiographic parameters in predicting the occurrence of nonsustained ventricular tachycardia (NsVT) in patients with hypertrophic cardiomyopathy (HCM). METHODS: The study comprised 59 patients with HCM (47 male, [80%]; mean age, 48.48 ± 14.16 years). Clinical, electrocardiographic, as well as classic two-dimensional and speckle-tracking echocardiography (STE) data were collected. All patients had Holter monitoring within 24-72 h of the echocardiographic examination...
October 16, 2017: Herz
https://www.readbyqxmd.com/read/28940430/wide-complex-tachycardia-in-a-patient-with-congenital-heart-block-what-is-the-mechanism
#6
Nicholas Serafini, Parikshit S Sharma, Christopher Madias, Richard G Trohman
No abstract text is available yet for this article.
September 20, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28920564/intentional-overdose-of-the-novel-anti-epileptic-drug-eslicarbazepine-presenting-with-recurrent-seizures-and-ventricular-dysrhythmias
#7
Jesse Thompson, James D Powell, Daniel H Ovakim
Eslicarbazepine is a novel anti-epileptic agent indicated for the treatment of partial-onset seizures. We present the case of an 18 year old female that presented to the Emergency Department four hours after a reported intentional ingestion of an estimated 5600 mg of eslicarbazepine. Although initially hemodynamically stable and neurologically normal, shortly after arrival she developed confusion, rigidity and clonus, followed by recurrent seizures, hypoxemia and cardiac arrest which responded to cardiopulmonary resuscitation and wide complex tachycardia requiring defibrillation...
September 18, 2017: CJEM
https://www.readbyqxmd.com/read/28901670/specificity-of-wide-qrs-complex-tachycardia-criteria-and-algorithms-in-patients-with-ventricular-preexcitation
#8
Marek Jastrzębski, Paweł Moskal, Piotr Kukla, Kamil Fijorek, Roksana Kisiel, Danuta Czarnecka
BACKGROUND: Despite substantial progress in the field of differentiation between ventricular tachycardia (VT) and supraventricular tachycardia (SVT) with wide QRS complexes, differentiation between VT and preexcited SVT remains largely unresolved due to significant overlap in QRS morphology. Our aim was to assess the specificities of various single ECG criteria and sets of criteria (Brugada algorithm, aVR algorithm, Steurer algorithm, and the VT score) for diagnosis of VT in a sizable cohort of patients with preexcitation...
September 12, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28875096/narrow-complex-ventricular-tachycardia
#9
Murtaza Sundhu, Mehmet Yildiz, Sajjad Gul, Mubbasher Syed, Idrees Azher, Robert Mosteller
Myocardial infarctions are frequently complicated by tachyarrhythmias, which commonly have wide QRS complexes (QRS duration > 120 milliseconds). Many published criteria exist to help differentiate between ventricular and supraventricular mechanisms. We present a case of a 61-year-old male with a history of hypertension, hyperlipidemia and coronary artery disease with prior stenting of the right coronary artery (RCA). He had been noncompliant with his antiplatelet medication and presented with cardiac arrest secondary to in-stent thrombosis...
July 4, 2017: Curēus
https://www.readbyqxmd.com/read/28862044/acute-lamotrigine-overdose-a-systematic-review-of-published-adult-and-pediatric-cases
#10
Bader Alyahya, Marjorie Friesen, Bénédicte Nauche, Martin Laliberté
CONTEXT: Lamotrigine is a broad-spectrum anticonvulsant commonly used to treat seizure and bipolar mood disorders. Evidence from case series and retrospective studies indicate that lamotrigine overdose is usually benign. However, there are reported cases of cardiac arrest and mortality following lamotrigine overdose. We undertook a systematic review of the literature on lamotrigine overdoses to better understand the clinical severity, the relevance of serum concentrations, and therapeutic interventions for overdose...
September 1, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28838551/general-approach-to-a-wide-qrs-complex
#11
REVIEW
Roberto De Ponti, Giuseppe Bagliani, Luigi Padeletti, Andrea Natale
Wide QRS complex is present when the normal activation pattern is modified by various mechanisms and clinical conditions. Correct interpretation is crucial for appropriate decision making. When approaching an electrocardiogram (ECG) with wide complex tachycardia, one must differentiate between ventricular tachycardia and supraventricular tachycardia conducted with aberrancy. ECG criteria are used and algorithms developed to aid in differential diagnosis. They are based on finding ECG signs of ventriculoatrial dissociation and QRS morphologies inconsistent with classic bundle branch block...
September 2017: Cardiac Electrophysiology Clinics
https://www.readbyqxmd.com/read/28832094/initial-experience-of-catheter-ablation-for-cardiac-arrhythmias-in-children-and-adolescents-at-a-newly-built-ablation-centre
#12
Radosław Pietrzak, Piotr Lodziński, Tomasz Książczyk, Paweł Balsam, Monika Gawałko, Grzegorz Opolski, Bożena Werner
BACKGROUND: Catheter ablation (CA) therapy is the first choice treatment in adults with heart rhythm disturbances. The arrhythmias in adults are mainly conditioned by coronary disease. Etiology of arrhythmias in children is mostly associated with inherited heart disorders. According to the current guidelines the CA is widely used in children, indicating the need to make it more achievable in pediatric population. AIM: To assess efficacy and safety of CA in children with different types of arrhythmias on the initial learning curve at newly built Ablation Center in The Independent Pediatric Hospital of Medical University of Warsaw...
August 23, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/28827222/an-irregular-wide-complex-tachycardia
#13
Thomas E Watts, H Thomas McElderry, G Neal Kay
No abstract text is available yet for this article.
August 22, 2017: Circulation
https://www.readbyqxmd.com/read/28764236/clinical-significance-of-the-forsaken-avr-in-evaluation-of-tachyarrhythmias-a-reminder
#14
Dharmendra Jain, Pradeep Nigam, Manoj Indurkar, Riyas Chiramkara
INTRODUCTION: Mechanism of a regular, monomorphic Wide QRS Complex Tachycardia (WCT) is an important diagnostic challenge in day to day practice for the clinicians and affects further management and prognosis. Many of the WCT and Narrow Complex Tachycardia (NCT) produce certain characteristic changes in lead aVR by which we can differentiate between them. AIM: The present study was aimed to evaluate tachyarrhythmias in relation to lead aVR and to highlight the clinical significance of lead aVR, "The Neglected Lead"...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28734703/the-differential-diagnosis-of-wide-qrs-complex-tachycardia
#15
REVIEW
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...
October 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28720191/sustained-accelerated-idioventricular-rhythm-in-a-centrifuge-simulated-suborbital-spaceflight
#16
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
https://www.readbyqxmd.com/read/28709467/amitriptyline-induced-ventricular-tachycardia-a-case-report
#17
Khandker Mohammad Nurus Sabah, Abdul Wadud Chowdhury, Mohammad Shahidul Islam, Bishnu Pada Saha, Syed Rezwan Kabir, Shamima Kawser
BACKGROUND: In Bangladesh, each emergency physician faces amitriptyline overdose nearly a day. An acute cardiovascular complication, one of the worst complications is mainly responsible for the mortality in tricyclic overdose. Recently, we managed ventricular tachycardia in a young female presented with an impaired consciousness 10 h after intentionally ingesting 2500 mg amitriptyline. Here, we report it, discuss how the electrocardiography is vital to acknowledge and predict it and its' complications and also the recent update of the management of it...
July 14, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28695272/cardiovascular-effects-of-histamine-in-three-widely-diverse-species-of-reptiles
#18
Nini Skovgaard, Augusto S Abe, Edwin W Taylor, Tobias Wang
The cardiovascular system of vertebrates is regulated by a vast number of regulatory factors, including histamine. In pythons, histamine induces a strong tachycardia and dilates the systemic vasculature, which resembles the cardiovascular response to the elevated metabolic rate during digestion. In fact, there is an important role of increased histaminergic tone on the heart during the initial 24 h of digestion in pythons. Whilst the cardiovascular effects of histamine are well studied in pythons, little is known about the effects in other groups of reptiles...
July 10, 2017: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
https://www.readbyqxmd.com/read/28666487/mahaim-tachycardia-induced-cardiomyopathy
#19
Ibrahim Gul, Qamaruddin Roziman, Aamir Hameed Khan
We present the case report of a 22-year man, with incessant palpitations, chest pain, shortness of breath, and pulsations in his neck for the past 7 months. He was referred to the cardiology unit for workup of wide complex tachycardia (WCT). His echocardiography, 6 months earlier, had demonstrated severe left ventricular (LV) systolic dysfunction, severe global hypokinesia, mild tricuspid regurgitation (TR), and mild mitral regurgitation (MR) which resolved with medical therapy including beta-blockers. He underwent electrophysiological study, which revealed a decremental right sided atriofascicular pathway causing a WCT with left bundle branch block (LBBB) morphology and left axis deviation (LAD, Mahaim tachycardia)...
November 2016: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28649505/wide-complex-tachycardia-in-a-patient-with-pre-excitation-what-is-the-mechanism
#20
Colin Yeo, Martin Green, Robert Lemery
No abstract text is available yet for this article.
June 2017: HeartRhythm Case Reports
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