Electromagnetic compatibility aspects of active robotic systems for surgery: the robotic prostatectomy experience |
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Authors: | F Arámbula Cosío RD Hibberd BL Davies |
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Affiliation: | Department of Medicine, Duke University Medical Center, Durham, North Carolina 27710, USA. |
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Abstract: | This case describes ventricular proarrhythmia as a result of a synchronized internal atrial defibrillation shock in a 29-year-old man with Ebstein's anomaly referred for radiofrequency ablation of a right posterior accessory pathway. During the electrophysiologic study, atrial fibrillation was induced and 3/3 msec shocks of various strengths were delivered between two decapolar defibrillation catheters in the coronary sinus and right atrial appendage. A 2.0-J biphasic shock synchronized to an R wave after a short-long-short ventricular cycle length pattern with a preshock coupling interval of 245 msec induced ventricular fibrillation, which was externally defibrillated with 200 J. This observation has implications for the development of implantable atrial defibrillators. |
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