نتایج جستجو برای: ablation atrioventricular node

تعداد نتایج: 228777  

Journal: :the journal of tehran university heart center 0
mohammad dalili rajaie cardiovascular, medical and research center, iran university of medical sciences, tehran, iran. jayakeerthi yrao heart rhythm management center, universitair ziekenhuis brussels – vrije universiteit brussel, brussels, belgium. pedro brugada heart rhythm management center, universitair ziekenhuis brussels – vrije universiteit brussel, brussels, belgium.

catheter ablation is an accepted, highly effective modality of treatment for cardiac arrhythmias in children. the success rate depends on the operator’s experience, especially in cases involving complex anatomies. we hereby report our recent experience of successful ablation of accessory pathways in three children with complex congenital heart diseases. the first case was a 7-year-old girl with...

Incidence and prognostic relevance of supraventricular arrhythmias were evaluated in nine studies. These studies investigated patients with different forms of pulmonary hypertension. Supraventricular arrhythmias were more often found in patients with group two pulmonary hypertension. Common findings in these patients were elevated right atrial pressure and diameters and reduced tricuspid annula...

2009
Shomu Bohora Jaganmohan Tharakan

Mahaim fiber exhibits atrio-ventricular node like properties and generally is localized at the lateral aspect of the tricuspid annulus. Of the varying methods for localization, ablation at the site of Mahaim potential is the most accepted and successful method. Radiofrequency ablation of Mahaim fiber has high success rates.

Journal: :Biomedical Research and Therapy 2023

Junctional ectopic tachycardia (JET) occurs postoperatively or after catheter ablation in the region of Koch's triangle. The post-ablation incidence JET reported medical literature is very low. We report case a 13-year-old female patient who underwent slow pathway for atrioventricular node reentrant and subsequently developed JET. An accelerated automatic focus was found junction area due to ra...

Journal: :the journal of tehran university heart center 0
ahmad yaminisharif tehran heart center, tehran university of medical sciences, tehran, iran. gholamreza davoodi tehran heart center, tehran university of medical sciences, tehran, iran. ali kasemisaeid tehran heart center, tehran university of medical sciences, tehran, iran. ali vasheghani farahani tehran heart center, tehran university of medical sciences, tehran, iran. fatemeh ghazanchai tehran heart center, tehran university of medical sciences, tehran, iran. mansour moghaddam tehran heart center, tehran university of medical sciences, tehran, iran.

background: radiofrequency catheter ablation (rfca) has been introduced as the treatment of choice for supraventricular tachycardia. the aim of this study was to evaluate the success rate as well as procedural and in-hospital complications of rfca for the treatment of atrioventricular nodal reentrant tachycardia (avnrt).   methods: between march 1995 and february 2009, 544 patients (75.9 % fema...

2015
Gustavo X. Morales Yousef H. Darrat Steve Leung Claude S. Elayi

Introduction Unroofed coronary sinus is a rare congenital anomaly that may alter the complex anatomy of the atrioventricular (AV) node. Arrhythmia circuits occurring among these patients may not be located in the usual position, especially those circuits involving the AV node. We report a case of the coexistence of this uncommon coronary sinus (CS) anomaly and the atypical form of atrioventricu...

Journal: :British heart journal 1984
D E Ward M Davies

Transvenous ablation of atrioventricular conduction by high energy shock through a pacing wire has been used as a method of controlling the ventricular response to rapid atrial arrhythmias. A patient in whom this technique successfully controlled refractory tachycardia was admitted with severe left ventricular impairment five months after the procedure and died. The heart was examined at necrop...

Journal: :Circulation 1994
H Calkins E Prystowsky M Carlson L S Klein J P Saul P Gillette

BACKGROUND The purpose of this study was to evaluate electrode temperatures obtained using a radiofrequency ablation system that incorporates closed loop feedback control to achieve preset target electrode temperatures and to determine if closed loop temperature control results in a lower incidence of developing a coagulum. METHODS AND RESULTS Two hundred seventy patients underwent catheter a...

Journal: :journal of cardio-thoracic medicine 0
anand agarwal cardiologist, department of cardiology, jawaharlal nehru medical college, ajmer, rajasthan, india

cardiac rhabdomyomas are the most common primary cardiac tumors in children. these tumors are generally asymptomatic, although they may be associated with neonatal tuberous sclerosis complex. despite the fact that thyroid dysfunction rarely occurs in tuberous sclerosis, papillary adenomas (hamartomas) of the thyroid gland have been reported in a number of autopsies. herein, we present the case ...

Journal: :the journal of tehran university heart center 0
mohammad reza dehghani seyyed-o-shohada heart hospital, uromieh university of medical sciences, uromieh, iran. azam soleimani chamran heart hospital, isfahan university of medical sciences, isfahan, iran. mohammad reza samiei nasab chamran heart hospital, isfahan university of medical sciences, isfahan, iran.

background: ventriculoatrial (va) conduction has an important role in the initiation and maintenance of some arrhythmias. the aim of this study was to evaluate whether clinical and electrophysiological parameters of atrioventricular (av) conduction can predict va conduction. methods: detailed demographic, electrocardiographic, and echocardiographic data were recorded in 54 consecutive patients ...

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