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Wide QRS tachycardia

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https://www.readbyqxmd.com/read/29328513/-wide-qrs-complex-tachycardia-followed-by-2-1-atrioventricular-block-what-is-the-mechanism
#1
Jesús Jiménez-López, Ermengol Vallès, Begoña Benito Villabriga, Oscar Alcalde, Sandra Cabrera, Julio Martí-Almor
No abstract text is available yet for this article.
January 12, 2018: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29319205/an-unexpected-cause-of-wide-qrs-tachycardia-in-a-young-woman
#2
Hussam Ali, Guido De Ambroggi, Sara Foresti, Riccardo Cappato
No abstract text is available yet for this article.
January 10, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29304037/influence-of-advancing-age-on-clinical-presentation-treatment-efficacy-and-safety-and-long-term-outcome-of-inducible-paroxysmal-supraventricular-tachycardia-without-pre-excitation-syndromes-a-cohort-study-of-1960-patients-included-over-25-years
#3
Béatrice Brembilla-Perrot, Jean Marc Sellal, Arnaud Olivier, Thibaut Villemin, Daniel Beurrier, Julie Vincent, Vladimir Manenti, Christian de Chillou, Erwan Bozec, Nicolas Girerd
AIM: To investigate the influence of increasing age on clinical presentation, treatment and long-term outcome in patients with inducible paroxysmal supraventricular tachycardia (SVT) without pre-excitation syndromes. METHODS: Clinical and electrophysiological study (EPS) data, as well as long-term clinical outcome (mean follow-up 2.4±4.0 years) were collected in patients referred for regular tachycardia with inducible SVT during EPS without pre-excitation. RESULTS: Among 1960 referred patients, 301 patients (15...
2018: PloS One
https://www.readbyqxmd.com/read/29289261/r-wave-peak-time-at-lead-ii-in-adults-with-ventricular-premature-beats-bundle-branch-block-and-left-anterior-fascicular-block
#4
Min Yu, Tingting Chen, Shuang Hu, Shan Zou, Cantian Wang, Chujuan Zeng, Weijie Chen, Xuerui Tan
BACKGROUND: Recently, the R-wave peak time (RWPT) at lead II was reported to be a helpful and simple tool for differentiating wide QRS complex tachycardias with a RWPT ≥ 50ms for ventricular tachycardia diagnosis. Our previous study showed that the duration of RWPT at lead II in adults was ≈29ms. However, the effects of ventricular premature beats (VPBs), bundle branch block (BBB) or left anterior fascicular block (LAFB) on RWPT at lead II remain unknown. METHODS: The study was conducted in the First Affiliated Hospital of Shantou University Medical College in Southern China...
January 2018: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/29226343/wide-qrs-tachycardia-with-rbbb-morphology-right-inferior-quadrant-axis-and-1-1-av-relation-what-is-the-mechanism
#5
Krishna Kumar Mohanan Nair, Narayanan Namboodiri, Sreevilasam Pushpangadhan Abhilash, Ajitkumar Valaparambil
No abstract text is available yet for this article.
December 11, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29132651/wide-qrs-complex-tachycardia
#6
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
#7
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/29113751/cardiomyopathy-induced-by-incessant-ventricular-tachycardia-originating-in-the-vicinity-of-the-his-bundle
#8
Sana Ouali, Manel Ben Halima, Selim Boudiche, Anissa Gharbi, Khedher Nadim, Kaouthar Hakim, Fatma Ouarda, Mohamed Sami Mourali
A 04-year-old boy was referred to our institution with severe, progressive heart failure of 4-months duration associated with a persistent wide QRS tachycardia with left bundle branch block and severe left ventricular dysfunction. Because of incessant wide QRS tachycardia refractory to antiarrhythmic drugs, he was referred for electrophysiological study. The ECG was suggestive of VT arising from the right ventricle near the His area. Electrophysiological study revealed that origin of tachycardia was septum of the right ventricle, near His bundle, however the procedure was not successful and an inadvertent complete atrioventricular conduction block occurred...
November 4, 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29101966/transition-of-wide-qrs-tachycardia-with-left-bundle-branch-block-qrs-morphology-what-is-the-mechanism
#9
Yasushi Wakabayashi, Takekuni Hayashi, Takeshi Mitsuhashi, Shin-Ichi Momomura
No abstract text is available yet for this article.
November 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29072998/real-world-utilization-and-impact-of-the-wearable-cardioverter-defibrillator-in-a-community-setting
#10
Aditi Naniwadekar, Talal Alnabelsi, Kamal Joshi, Edinrin Obasare, Allan Greenspan, Sumeet Mainigi
INTRODUCTION: The wearable cardioverter-defibrillator (WCD) is used in patients at risk for sudden cardiac death (SCD) but not immediate candidates for intracardiac defibrillator (ICD) implantation. METHODS: We performed a single center retrospective study of patients prescribed WCD upon hospital discharge from January 2002 to October 2015. Clinical characteristics were obtained from the hospital electronic database and device data from Zoll LifeVest database. RESULTS: Of 140 patients, 62% were men, 85...
May 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29072996/wide-qrs-tachycardia-in-a-patient-with-pre-excitation-what-are-the-pathways-involved-pacing-manoeuvres-to-characterize-a-unique-pathway
#11
Krishna Kumar Mohanan Nair, Anees Thajudeen, Narayanan Namboodiri, Ajitkumar Valaparambil
A 30year old patient presented to us with recurrent episodes of palpitation and documented tachycardia. In all his presentations a wide QRS tachycardia was recorded. The baseline ECG showed pre excitation. The 12 lead ECG of the tachycardia and the baseline ECG is shown in Fig. 1A. During EP study the patient had baseline pre excitation and the HV interval was 16 ms. A duo-decapolar halo (HL) catheter was used to map right atrium and a decapolar coronary sinus (CS) catheter was used to map coronary sinus...
March 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29067913/narrow-qrs-tachycardia-to-wide-qrs-tachycardia-with-lbbb-morphology-what-is-the-mechanism
#12
Krishna Kumar Mohanan Nair, Narayanan Namboodiri, Sreevilasam Pushpangadhan Abhilash, Ajitkumar Valaparambil
No abstract text is available yet for this article.
July 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29067909/atrial-flutter-presenting-as-broad-complex-tachycardia-in-a-patient-with-right-sided-pneumonectomy
#13
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
#14
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/28901670/specificity-of-wide-qrs-complex-tachycardia-criteria-and-algorithms-in-patients-with-ventricular-preexcitation
#15
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
#16
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/28838551/general-approach-to-a-wide-qrs-complex
#17
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/28838545/general-introduction-classification-and-electrocardiographic-diagnosis-of-cardiac-arrhythmias
#18
REVIEW
Luigi Padeletti, Giuseppe Bagliani
The conduction system includes a primary pacemaker, the internodal tracts, the atrioventricular node, and the His bundle with the right and left branches. In "emergency" conditions, accessory pacemakers may be triggered. The conduction system produces very low-intensity currents; a surface electrocardiogram (ECG) detects only the big myocardial masses. Electrogenetic mechanisms are reduced automaticity and/or impaired conduction at the base of bradycardias. An increased automaticity and/or reentry phenomenon are at the base of ectopic beats and tachycardias...
September 2017: Cardiac Electrophysiology Clinics
https://www.readbyqxmd.com/read/28833707/wide-qrs-tachycardia-with-rr-alternans-and-qrs-alternans
#19
Krishna Kumar Mohanan Nair, Narayanan Namboodiri, Dibya Ranjan Behera, Sreevilasam Pushpangadhan Abhilash, Ajitkumar Valaparambil
No abstract text is available yet for this article.
August 18, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28764236/clinical-significance-of-the-forsaken-avr-in-evaluation-of-tachyarrhythmias-a-reminder
#20
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
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