TY - JOUR
T1 - TRANSVENOUS CATHETER DEFIBRILLATION
T2 - COMPARISON OF A HALF-SINUSOIDAL AND TRAPEZOIDAL WAVEFORM.
AU - Thomas, Evan
AU - Ewy, Gordon A.
AU - Taren, Douglas
PY - 1978
Y1 - 1978
N2 - Permanently implantable automatic defibrillators are electronic devices designed for ambulatory patients who have a high risk of sudden cardiac death from ventricular fibrillation. Implantable automatic defibrillators will probably utilize transvenous electrode catheters alone or in combination with a subcutaneous plate as the second permanently implanted electrode. This study compares transvenous electrode catheters' defibrillation effectivness when using the trapezoidal waveform and when using the damped half-sinusoidal waveform, at comparable energy levels. Five greyhounds were used in some 272 fibrillation/defibrillation trials. Neither total energy, peak current, nor peak voltage could be absolutely correlated with percent effectiveness for transvenous defibrillation. However, for a given waveform, an increase in delivered energy was associated with a large and statistically significant increase in percent success.
AB - Permanently implantable automatic defibrillators are electronic devices designed for ambulatory patients who have a high risk of sudden cardiac death from ventricular fibrillation. Implantable automatic defibrillators will probably utilize transvenous electrode catheters alone or in combination with a subcutaneous plate as the second permanently implanted electrode. This study compares transvenous electrode catheters' defibrillation effectivness when using the trapezoidal waveform and when using the damped half-sinusoidal waveform, at comparable energy levels. Five greyhounds were used in some 272 fibrillation/defibrillation trials. Neither total energy, peak current, nor peak voltage could be absolutely correlated with percent effectiveness for transvenous defibrillation. However, for a given waveform, an increase in delivered energy was associated with a large and statistically significant increase in percent success.
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M3 - Article
C2 - 745574
AN - SCOPUS:0018040882
VL - 12
SP - 349
EP - 351
JO - Biomedical Instrumentation and Technology
JF - Biomedical Instrumentation and Technology
SN - 0899-8205
IS - 6
ER -