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Ventricular taquicardia

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https://www.readbyqxmd.com/read/30175540/second-degree-interatrial-block-brief-review-and-concept
#1
Antonio Bayés de Luna, Adrián Baranchuk, César Niño Pulido, Manuel Martínez-Sellés, Antonio Bayés-Genís, Roberto Elosua, Marcelo V Elizari
The advanced interatrial block (A-IAB) (P ≥ 120 ms plus ± pattern in II, III and aVF) corresponds at atrial level, to right or left advanced bundle branch block at ventricular level, and it is well known that these patterns may be seen transiently in relation to taquicardia or bradycardia (tachycardia or bradycardia dependent right or left bundle branch block). We present for the first time, the same phenomenon at atrial level. In one case, the A-IAB appears in relation to tachycardization and in the other disappears during a pause induced by ventricular premature complex...
November 2018: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/25352457/value-of-the-qrs-t-angle-in-predicting-the-induction-of-ventricular-tachyarrhythmias-in-patients-with-chagas-disease
#2
Hugo Bizetto Zampa, Dalmo Ar Moreira, Carlos Alberto Brandão Ferreira Filho, Charles Rios Souza, Camila Caldas Menezes, Henrique Seichii Hirata, Luciana Vidal Armaganijan
Background: The QRS-T angle correlates with prognosis in patients with heart failure and coronary artery disease, reflected by an increase in mortality proportional to an increase in the difference between the axes of the QRS complex and T wave in the frontal plane. The value of this correlation in patients with Chagas heart disease is currently unknown. Objective: Determine the correlation of the QRS-T angle and the risk of induction of ventricular tachycardia / ventricular fibrillation (VT / VF) during electrophysiological study (EPS) in patients with Chagas disease...
October 28, 2014: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/16007308/-analysis-of-the-intra-hospital-attending-of-ventricular-fibrilation-ventricular-taquicardia-simulated-events
#3
Miguel Antônio Moretti, André Moreira Bento, Ana Paula Quilici, Márcia Martins, Luís Francisco Cardoso, Sérgio Timerman
OBJECTIVE: To analyze the time intervals between the beginning of the Ventricular Fibrilation/Ventricular Taquicardia (VF/VT) and the main procedures made. METHODS: Twenty VF/VT simulations were performed and filmed in a hospital environment, using a static mannequin, on random days at random times. All teams had the same level of skills. The times (in sec.) related to basic life support (BLS) - arrival of the team (AT), confirmation of the arrest (CAT), beginning of the CPR (IT) and the times related to the advanced life support (ALS) - 1st defibrillation (DT), 1st dose of adrenalin (AT) and orotracheal intubation (OTIT)...
June 2005: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/11075281/-experience-in-1-500-patients-undergoing-radiofrequency-ablation-in-the-treatment-of-tachycardias
#4
P Iturralde Torres, L Colín Lizalde, M Guevara Valdivia, L Rodríguez Chávez, S Kershenovich Shapiro
Several reports have demonstrated that radiofrequency catheter ablation provides effective control of a variety of supraventricular and ventricular tachycardias. This report details the results of radiofrequency catheter ablation in 1500 consecutive patients with a wide variety of supraventricular and ventricular tachycardias treated in the Instituto Nacional de Cardiología "Ignacio Chavez", between April 22, 1992 until December of 1999. Tachycardias were associated with the presence of an accessory pathway in 987 patients (65...
July 2000: Archivos del Instituto de Cardiología de México
https://www.readbyqxmd.com/read/8561675/-adequacy-of-of-pacemakers-responsive-to-the-volume-minute-ventilation-rate-in-heart-transplantation-patients
#5
J R Sant'Anna, I Castro, L L Lima, A Reis, R A Kalil, P R Prates, F A Lucchese, C Halperin, E Pereira, R Rodrigues
PURPOSE: To evaluate in the late post-operative period (PO) the chronotropic response to exercise of patients submitted to orthotopic cardiac transplantation (CT) and the implant of a cardiac pacemaker (PM). METHODS: A rate response ventricular PM (VVI+R) which uses minute ventilation (MV) as a sensor was implanted in five patients in the early PO of CT due to chronotropic incompetence. The patients were 31 to 64 years old and the indication to implant of PM was low ventricular escape rhythm following atrial taquicardia/bradycardia (one case) or sinus bradycardia (4 cases)...
June 1995: Arquivos Brasileiros de Cardiologia
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