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Agnieszka Noszczyk-Nowak, Urszula Pasławska, Jacek Gajek, Adrian Janiszewski, Robert Pasławski, Dorota Zyśko, Józef Nicpoń
BACKGROUND: Swine are recognized animal models of human cardiovascular diseases. However, little is known on the CHF-associated changes in the electrophysiological ventricular parameters of humans and animals. OBJECTIVES: The aim of this study was to analyze changes in the durations of ventricular effective refraction period (VERP), QT and QTc intervals of pigs with chronic tachycardia-induced tachycardiomyopathy (TIC). MATERIAL AND METHODS: The study was comprised of 28 adult pigs (8 females and 20 males) of the Polish Large White breed...
May 2016: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
Dirk Vollmann, Claudius Hansen
A 35-year-old female was referred with progressive dyspnoea and elevated heart rate. Surface electrocardiography (ECG) showed supraventricular tachycardia (SVT) with long RP interval and inverse P waves. ECG revealed left ventricular dilation and severe systolic dysfunction. An electrophysiological (EP) examination was performed due to incessant SVT despite betablocker medication. Permanent junctional reciprocating tachycardia (PJRT) was diagnosed and successfully ablated. During follow-up, the patient's symptoms abated and ECG parameters normalized...
September 7, 2016: Herzschrittmachertherapie & Elektrophysiologie
Oholi Tovia-Brodie, Yoav Michowitz, Aharon Glick, Raphael Rosso, Bernard Belhassen
BACKGROUND: Left ventricular outflow tract (LVOT) arrhythmias are increasingly recognized. Data regarding the distribution of the sites of origin (SOO) of the arrhythmias are sparse. OBJECTIVES: To describe the clinical characteristics of patients with LVOT arrhythmias and the distribution of their SOO. METHODS: All 42 consecutive patients with LVOT arrhythmias who underwent radiofrequency (RF) ablation during the period 2000-2014 were included...
February 2016: Israel Medical Association Journal: IMAJ
Béatrice Brembilla-Perrot, João Pedro Ferreira, Vladimir Manenti, Jean Marc Sellal, Arnaud Olivier, Thibaut Villemin, Daniel Beurrier, Christian De Chillou, Pierre Louis, Alice Brembilla, Yves Juillière, Nicolas Girerd
BACKGROUND: Atrial flutter-related tachycardiomyopathy (AFL-TCM) is a rare and treatable cause of heart failure. Little is known about its epidemiology and long-term prognosis. Our aims are to determine the prevalence, predictors and outcomes of AFL-TCM. METHODS AND RESULTS: A total of 1269 patients were referred for radiofrequency ablation of AFL between January 1996 and September 2014; 184 had reduced left ventricular ejection fraction (LVEF <40%). At 6 months after AFL ablation, 103 patients (8...
April 2016: European Journal of Heart Failure
Stefan Peters
No abstract text is available yet for this article.
March 15, 2016: International Journal of Cardiology
Jorge G Quintanilla, Javier Moreno, Tamara Archondo, Elena Usandizaga, Roberto Molina-Morúa, Cruz Rodríguez-Bobada, Pablo González, María Jesús García-Torrent, David Filgueiras-Rama, Nicasio Pérez-Castellano, Carlos Macaya, Julián Pérez-Villacastín
BACKGROUND: Heart failure (HF) electrophysiological remodeling (HF-ER) often includes the effect of chronically increased intraventricular pressures (IVPs) and promotes ventricular tachycardia/ventricular fibrillation (VT/VF). In addition, acutely increased IVPs have been associated with a higher rate of VT/VF episodes in chronic HF. OBJECTIVE: We hypothesized that increased IVPs and/or an ionic-imbalanced (acidified), catecholamine-rich (adrenergic) milieu (AA milieu) may contribute as much as HF-ER to the substrate for reentry in HF...
October 2015: Heart Rhythm: the Official Journal of the Heart Rhythm Society
Jakub Lagan, Palaniappan Saravanan
Obstructive sleep apnoea (OSAS) affects 4% of men and 2% of women aged 30-65 years. It is diagnosed in the presence of excessive daytime sleepiness and an apnoea-hypopnoea index (AHI) of ≥5 on polysomnography. Rhythm disturbances are common in OSAS and continuous positive airway pressure (CPAP) has been shown to be beneficial. We present a case of a patient with obesity, atrial fibrillation with fast ventricular response, significant nocturnal pauses (3.9 s) and tachycardiomyopathy. A polysomnography confirmed severe OSAS (AHI=64...
2015: BMJ Case Reports
M Alings, A Thornton, M Scholten, L Jordaens
A 28-year-old pregnant lady presented with cardiomyopathy and atrial tachycardia. The patient had severe heart failure and syncope. Her past medical history was uneventful. Her mother, however, had received an implantable cardioverter defibrillator (ICD) after an out-of-hospital cardiac arrest due to idiopathic ventricular fibrillation. The patient was scheduled for programmed stimulation, during which a monomorphic ventricular tachycardia was induced. An ICD was then implanted. Following radiofrequency ablation of the atrial tachycardia, left ventricular function recovered completely...
August 2006: Netherlands Heart Journal
Marta Pachón, Miguel A Arias, Ana Pérez-Serradilla
No abstract text is available yet for this article.
July 2014: Revista Española de Cardiología
Efrén Martínez-Quintana, Cristian Miranda-García, Silvia Gopar-Gopar, Beatriz Sáiz-Udaeta, Fayna Rodríguez-González
The transient left ventricular apical ballooning syndrome, also known as Tako-Tusbo syndrome, has an acute onset, is more common in postmenopausal women, and is characterized by transient left ventricular apical ballooning, chest pain, electrocardiographic abnormalities, and slight elevation of markers for myocardial injury, mimicking a myocardial infarction in patients with no significant coronary lesions. However, before making the diagnosis, other causes of reversible left ventricular dysfunction must be ruled out, such as subarachnoid hemorrhage, pheochromocytoma crisis, acute myocarditis, or the presence of tachycardiomyopathy...
July 2014: Clínica e Investigación en Arteriosclerosis
P Skrzypczak, D Zyśko, U Pasławska, A Noszczyk-Nowak, A Janiszewski, J Gajek, J Nicpoń, L Kiczak, J Bania, M Zacharski, A Tomaszek, E A Jankowska, P Ponikowski, W Witkiewicz
Ventricular tachycardia may lead to haemodynamic deterioration and, in the case of long term persistence, is associated with the development of tachycardiomyopathy. The effect of ventricular tachycardia on haemodynamics in individuals with tachycardiomyopathy, but being in sinus rhythm has not been studied. Rapid ventricular pacing is a model of ventricular tachycardia. The aim of this study was to determine the effect of rapid ventricular pacing on blood pressure in healthy animals and those with tachycardiomyopathy...
2014: Polish Journal of Veterinary Sciences
Weizhu Ju, Bing Yang, Mingfang Li, Fengxiang Zhang, Hongwu Chen, Kai Gu, Jinbo Yu, Kejiang Cao, Minglong Chen
OBJECTIVE: Focal atrial tachycardias (ATs) are known to have the potential to develop tachycardiomyopathy (TCM). The aim of the study was to investigate the incidence, risk factors, and long-term outcome of TCM patients complicated by focal ATs. METHODS AND RESULTS: A total of 237 patients undergoing electrophysiological studies were enrolled, among which 216 patients were diagnosed as focal ATs. In total, 18 patients (8.3%, 13 males) were identified to have TCM...
September 2014: Journal of Cardiovascular Electrophysiology
Antonio Berruezo, Felipe Bisbal, Juan Fernández-Armenta, Naiara Calvo, José Ángel Cabrera, Damián Sanchez-Quintana, David Andreu, Teresa M de Caralt, Josep Brugada, Lluís Mont
BACKGROUND: Perimitral flutter (PMF) is a common form of left atrial tachycardia after atrial fibrillation (AF) ablation. The mitral isthmus (MI) is the standard ablation target. However, in some cases bidirectional block cannot be achieved. OBJECTIVE: The purpose of this study was to describe the first experience using a transthoracic epicardial (TTE) approach to treat recurrent PMF after prior unsuccessful ablation. METHODS: This is a case series of four patients with recurrence of highly symptomatic drug-refractory PMF (all male, median age 55 years, 3/4 hypertensive, 2/4 persistent AF, median AF period 24 months)...
January 2014: Heart Rhythm: the Official Journal of the Heart Rhythm Society
Naiara Calvo, Felipe Bisbal, Esther Guiu, Pablo Ramos, Mercé Nadal, Jose María Tolosana, Elena Arbelo, Antonio Berruezo, Marta Sitges, Josep Brugada, Lluís Mont
INTRODUCTION: Atrial fibrillation (AF) is a recognized treatable cause of tachycardiomyopathy (TMP), with class IIb indication for catheter ablation (CA). The aim of this study is to analyze the prevalence, clinical characteristics and effect of CA in patients with TMP and to evaluate TMP as a prognostic factor for AF recurrence in these patients (TMP group), compared to controls with normal left ventricular ejection fraction (LVEF) and patients with heart failure due to structural cardiomyopathy (HF group)...
October 9, 2013: International Journal of Cardiology
Giuseppe Di Pasquale, Letizia Riva
In patients with heart failure (HF) the prevalence of atrial fibrillation (AF) is higher than in the general population, and the risk of developing AF is greater in women than in men. The occurrence of AF in HF patients correlates with increased mortality and greater incidence of thromboembolic events, which seem to occur more frequently in women. The increased risk of bleeding during oral anticoagulant therapy associated with HF determines an underuse of anticoagulants in these patients, in particular in female subjects...
May 2012: Giornale Italiano di Cardiologia
Béatrice Brembilla-Perrot, Franck Laporte, Jean Marc Sellal, Jérôme Schwartz, Arnaud Olivier, Pierre Yves Zinzius, Vladimir Manenti, Daniel Beurrier, Marius Andronache, Pierre Louis, Olivier Selton, Arnaud Terrier de la Chaise, Christian De Chillou
UNLABELLED: Little is known about the epidemiology of 1:1 atrial flutter (AFL). Our objectives were to determine its prevalence and predisposing conditions. METHODS: 1037 patients aged 16 to 93 years (mean 64±12) were consecutively referred for AFL ablation. 791 had heart disease (HD). Patients admitted with 1/1 AFL were collected. Patients were followed 3±3 years. RESULTS: 1:1 AFL-related tachycardiomyopathy was found in 85 patients, 59 men (69%) with a mean age of 59±12 years...
October 9, 2013: International Journal of Cardiology
B Brembilla-Perrot, O Huttin, V Manenti, M Benichou, J M Sellal, P Y Zinzius, D Beurrier, J Schwartz, F Laporte, C de Chillou, M Andronache, G Cismaru, M Pauriah, O Selton, P Louis, A Terrier de la Chaise
UNLABELLED: Sex-related differences were not reported for the atrial flutter (AF). The purpose of the study was to look for the influence of gender on indications, clinical data and long-term results of AFl ablation. METHODS: 985 patients, [227 females (23%)] were referred for radiofrequency AFl ablation. Clinical history, echocardiography were collected. Patients were followed from 3 months to 10 years. RESULTS: Age of women and men was similar (65...
October 3, 2013: International Journal of Cardiology
Guillermo Mora, Nohra Romero, van Rendon
No abstract text is available yet for this article.
January 2013: Indian Pacing and Electrophysiology Journal
Ragesh Panikkath, Kenneth Nugent, Alejandro Perez-Verdia
Atrial fibrillation (AF) has been associated with lung diseases like pneumonia and chronic obstructive pulmonary disease but has only infrequently been associated with inhalational lung injury. We report two cases of resistant AF, which developed in young healthy manual laborers shortly after inhalational lung injury due to massive quantity of pesticides and anhydrous ammonia, respectively. They had no evidence of valvular or structural heart disease and did not have any previous medical problems. The AF was resistant to antiarrhythmic drugs and required pulmonary vein isolation in first patient and possibly the second patient who is currently being evaluated for this procedure...
2012: Case Reports in Medicine
Javier García Seara, Francisco Gude, Pilar Cabanas, José L Martínez-Sande, Xesús Fernández López, Antonio Hernández Madrid, Concepción Moro, José R González Juanatey
BACKGROUND: To evaluate changes in health-related quality of life (HRQOL) in different sub-groups of a cohort of patients with typical atrial flutter (AFL) treated with cavotricuspid isthmus (CTI) radiofrequency catheter ablation. METHODS: 95 consecutive patients due to undergo CTI ablation were enrolled in a study involving their completion of two SF-36 HRQOL questionnaires, before ablation and at one-year follow-up. RESULTS: 88 of the initial 95 patients finished the study...
2012: Health and Quality of Life Outcomes
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