Why the study?
Does reducing maximum sensitivity to 0.43 mV delay the detection of induced ventricular fibrillation compared to maximum sensitivity of 0.18 mV in patients with implantable defibrillators?
Population
42 consecutive patients undergoing defibrillator implantation/replacement with programmable maximum…
Comparison
Programmed minimum sensitivity (0.43 mV) vs Programmed maximum sensitivity (0.18 mV)
Design
RCT, randomized manner
Follow-up
During device implantation and pre-discharge testing
Authors
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Reducing ICD maximum sensitivity does not delay VF detection; supports programming adjustments to minimize oversensing.
Does reducing maximum sensitivity to 0.43 mV delay the detection of induced ventricular fibrillation compared to maximum sensitivity of 0.18 mV in patients with implantable defibrillators?
Reducing maximum sensitivity in ICDs with automatic gain control does not impair the detection time of ventricular fibrillation, potentially allowing for avoidance of extracardiac signal sensing.
B. Schulte (2000) studied this question.
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