Junior Members Forum
نویسندگان
چکیده
The use of a low tilt biphasic waveform lowers the defibrillation threshold for the internal cardioversion of atrial fibrillation Purpose: Conventional defibrillators used for the internal cardioversion of atrial fibrillation (AF) employ high tilt waveforms generated by a capacitor based discharge. We have developed a biphasic waveform with low tilt. This was compared with a conventional waveform of equivalent duration (6/6ms) and voltage. Methods: Patients were randomised to receive either the low tilt waveform or a conventional waveform. Defibrillation electrodes were positioned in the right atrial appendage and distal coronary sinus. Peak voltage was increased in a stepwise progression from 50V to 300V. Shock success was defined as return of sinus rhythm for > 30 seconds. Results: The low tilt waveform resulted in successful termination of persistent AF in 10 of 13 cases (77%) at a mean voltage of 223V versus the conventional waveform in 2 of 12 cases (17%) at a mean voltage of 270V (p = 0.002). In patients with induced AF the mean voltage for the low tilt waveform was 90V and for the conventional waveform was 158V (p=0.005). Conclusions: The low tilt biphasic waveform was more successful for the internal cardioversion of both persistent and induced AF. This waveform could be useful for the termination of both persistent and induced AF during ablation procedures in order to restore sinus rhythm at a low voltage. The novel low tilt biphasic waveform (left) versus a conventional tilted biphasic waveform (right)
منابع مشابه
Receives Fellowship ; To Complete Studies
Campus Commission has announced t he election of new members from the Class of 1953, and the names of those members who move up to t h e Junior staff. These people will assist the new Grand Marshal, Virginia Norton '51, who was elected on the second distribution by Student Association. F r o m the Class of 1952, members who will compose the Junior commission a r e : Jacquelin Coplon, Mar i lyn ...
متن کاملThe European Association of Young Neurologists and Trainees in 2013: striking a blow for European junior neurologists.
BACKGROUND AND PURPOSE The main objective of the European Association of Young Neurologists and Trainees (EAYNT), an independent Brussels-based association of junior neurologists, is to represent and promote the interests of European junior neurologists. METHODS AND RESULTS A wide variety of projects and activities are ongoing, carried out by members of the organization in close collaboration...
متن کاملUlster Paediatric Society Junior Members' Forum
The Junior Members' Forum provides opportunity for paediatricians in training to present scientific and clinical material of research interest. Society acted as judges. Prizes were awarded on the basis of the best scientific paper to Mr Bill McCallion for his paper "Helicobacter Pylori in children in Northern Ireland", and for the best presentation to Dr Fiona Stewart for her paper "Molecular I...
متن کاملThe Establishment of an Efficient Regional Economic Integrative Core Forum among the OIC Members: A Feasibility Study
متن کامل
Juniors' voice: Opportunities for ERS 'junior members in 2016.
Opportunities for ERS junior members in 2016 http://ow.ly/YC7ME.
متن کاملInvestigating Whether the Gas Exporting Countries Forum (GECF) Can be Considered a Cartel: Application of Autoregressive Distributed Lag Bound Test and the Toda-Yamamoto Causality Test
The natural gas market is currently undergoing dramatic changes and is becoming globalized. One of the major developments in the global natural gas market in recent years is the establishment of the Gas Exporting Countries Forum (GECF). Since the founding of this forum, there have been many speculations about whether GECF would become a cartel like OPEC. Cartels contributes to the coordination ...
متن کامل