The Treatment of Ventricular Tachycardia Using an Automatic Tachycardia Terminating Pacemaker (original) (raw)
1981, Pacing and Clinical Electrophysiology
The treatment of ventricuiar tachycardia using an automatic tachycardia terminating pacemaker. Implanted cardiac pacemakers may be used in the management of selected patients with ventricuJar tachycardia unresponsive to other forms of medico/ and surgical therapy. We wouJd like to report tbe successfuJ treatment of such a patient utilizing a new muitiprogrammable automaticaliy activating ventricuiar burst pacemaker. Thorough eJectrophysiologic study preceded implantation, and was instrumental in choosing an effective terminating technique, in identifying the need for adjunctive drug therapy, and in testing (he safety and efficacy of the implanted system. (PACE, Vol. 4, September-October, 1981} ventricuiar tachycardia, tachycardia termination, pacemaker termination, antitachycardia pacemaker, programmed stimulation Programmed electrical stimulation for initiation and termination of ventricular tachycardia has been repeated by several investigators.'"* Despite improvements in the management of patients with recurrent sustained ventricular tachycardia, there are still those for whom no effective pharmacologic or surgical therapy can be identified. In such patients chronically implanted pacemakers capable of arrhythmia recognition and termination might be an alternative therapy if a safe, effective system were available. We have previously reported the Address for reprints: Jerry C. Griffin, M.D., Section in Cardiology.
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Pacing and Clinical Electrophysiology, 1982
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Transcutaneous Cardiac Pacing for Termination of Tachyarrhythmias
Pacing and Clinical Electrophysiology, 1990
ALTAMURA, G., ET AL.: Transcutaneous Cardiac Pacing for Termination of Tachyarrhythmias. Transcutaneous cardiac pacing (TCP) was used for interruption of tachyarrhythmias in 31 patients: 20 with ventricular tachycardia (VT); eight with atrioventricular reentrant tachycardia (AVRT) and three had atrioventricular nodal tachycardia (AVNT). The stimulators used (Pace Aid 50152) allow pacing at programmable rates (50-160 ppm) and output mA at 20-msec pulse duration), when possible overdrive pacing was used. Short bursts of stimuli were delivered with increasing current intensity until interruption of the arrhythmia or to the maximum energy tolerated by the patient. VTs were interrupted in eight of the 20 patients: four of the six (67%) treated by overdrive pacing and four of the 14 (29%) were treated by underdrive pacing. Supraventricular tachycardias (SVT) were terminated in eight of the 11 patients: seven out of eight (88%) AVT, and one out of three AVNT (33%). We observed two cases of arrhythmia worsening: a VT acceleration and induction of ventricular fibrillation in a patient with AVNT. TCP was well tolerated by the majority of the patients. We conclude that TCP is an effective method for interruption of ventricular and supraventricular reentrant tachycardias, but t_he tiBk of arrhythmia worsening must be considered. (PACE, Vol. 13, December, Part II 1990) ' transcutaneous cardiac pacing, noninvasive pacing, external pacing, tachyarrhythmias electrical treatment
Clinical Cardiology, 1982
A fully implantable automatic scanning pacemaker designed for tachycardia termination has been used in three patients with regular paroxysmal supraventricular tachycardia. The pacemaker recognizes tachycardia and delivers one or two extrastimuli which automatically scan inwards if tachycardia continues. A memory is incorporated to retain and immediately reuse a successful pacing sequence if tachycardia recurs. Ventricular pacing has been used in two patients and atrial stimulation in one. Although all had suffered frequent attacks of tachycardia after implantation no sustained episodes of tachycardia have been appreciated. No unwanted arrhythmias have been induced and drug treatment has been stopped in all three patients. Fully implantable scanning pacemakers which automatically recognize and revert tachycardia offer an effective and versatile form of treatment for recurrent paroxysmal tachycardias.
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