December 28, 2002EP EuropaceOpen Access

Automatic capture verification in ICD lead systems using intracardiac ventricular evoked response and reduced coupling capacitance

View Full Paper

Ask AI

Bookmark

Why the study?

Does an external pacing system with reduced coupling capacitance allow adequate evoked-response detection for automatic capture verification in patients with ICD lead systems?

Population

20 consecutive patients with implanted cardioverter defibrillator lead systems from two different…

Design

Cross-sectional

Authors

JSJohannes SperzelElectrophysiology

Discussion

Member takes

Implication

Successful evoked-response detection achieved with reduced-capacitance pacing across ICD leads; extends feasibility data but remains hypothesis-generating.

Structured PICO

Does an external pacing system with reduced coupling capacitance allow adequate evoked-response detection for automatic capture verification in patients with ICD lead systems?

Population

20 consecutive patients with implanted cardioverter defibrillator (ICD) lead systems from two different manufacturers (10 with acute leads, 10 with chronic leads), mean age 61+/-12 years.

Intervention

External pacing system equipped with a reduced coupling capacitance (CC=2.2 microF) in the pacing output circuit during ventricular step-down threshold testing at 0.4 ms pulse duration.

Outcome

Evoked-response (ER) amplitude during capture and ER-to-afterpotential ratio (SAR), with SAR>2 as the criterion for successful capture detection.surrogate

Reducing the pacing coupling capacitance allows adequate evoked-response detection for automatic capture verification on non-selected ICD lead systems.

Limitations

The effect of high-voltage shock treatment on ER signal detection requires further investigation.

Cite This Study

Johannes Sperzel (2002) studied this question.

synapsesocial.com/papers/6a972500dbc641e6a0a6fb37 https://doi.org/10.1053/eupc.2002.0279

Topics

Cardiac device therapy

View Full Paper

Ask AI

Bookmark

Implication

Successful evoked-response detection achieved with reduced-capacitance pacing across ICD leads; extends feasibility data but remains hypothesis-generating.

Automatic capture verification in ICD lead systems using intracardiac ventricular evoked response and reduced coupling capacitance

Discussion

Member takes

Implication

Structured PICO

Limitations

Cite This Study

Topics

Automatic capture verification in ICD lead systems using intracardiac ventricular evoked response and reduced coupling capacitance

Discussion

Member takes

Implication

Structured PICO

Limitations

Cite This Study

Also Consider

Topics

Also Consider