منابع مشابه
Determinants of Intracardiac Current in Defibrillation
Defibrillation success depends upon the amount and distribution of intracardiac current (IC), because only a portion of total current flow between the paddles actually traverses the heart. We evaluated two determinants of IC: paddle size and shock energy. Studies were performed in 11 anesthetized dogs using a damped-sine wave form defibrillator. Intramyocardial electrode pairs were implanted su...
متن کاملTowards Low Energy Atrial Defibrillation
A wireless powered implantable atrial defibrillator consisting of a battery driven hand-held radio frequency (RF) power transmitter (ex vivo) and a passive (battery free) implantable power receiver (in vivo) that enables measurement of the intracardiac impedance (ICI) during internal atrial defibrillation is reported. The architecture is designed to operate in two modes: Cardiac sense mode (pow...
متن کاملIntracardiac aorto-right atrial tunnel.
Rita Pancas*, Gonçalo F. Coutinho and Manuel J. Antunes Department of Cardiothoracic Surgery, University Hospital of Coimbra, Coimbra, Portugal * Corresponding author. Hospitais da Universidade de Coimbra, Centro de Cirurgia Cardiotorácica, Praceta Professor Mota Pinto, 3000-075 Coimbra, Portugal. Tel: +351-961-458337; fax: +351-239-829674; e-mail: [email protected] (R. Pancas). Received ...
متن کاملRight atrial septal electrode for reducing the atrial defibrillation threshold.
BACKGROUND The atrial defibrillation threshold (ADFT) energy of the standard lead configuration, right atrial appendage (RAA) to coronary sinus (CS), was reduced by >50% with the addition of a third electrode traversing the atrial septum in a previous study. This study determined whether the ADFT would be lowered by a more clinically practical third electrode placed in the right atrium along th...
متن کاملMaintenance of sinus rhythm after atrial defibrillation.
The long-term results of 356 episodes of atrial defibrillation by DC shock carried out in 250 patients are reviewed. In 78 per cent of the cases, atrial fibrillation recurred by the end of 12 months in spite of the administration of quinidine or procainamide or propranolol, singly or combined. However, when no antidysrhythmic drugs were used the recurrence rate was higher at all periods of obse...
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ژورنال
عنوان ژورنال: Heart Rhythm
سال: 2007
ISSN: 1547-5271
DOI: 10.1016/j.hrthm.2006.12.030