What does this research mean for the field?

In epicardial ventricular mapping, the maximal amplitude of the bipolar electrogram coincides with the maximal negative slope of the unipolar electrogram, whereas using the onset of the bipolar electrogram can lead to misinterpretation of the timing and location of earliest activation. Novelty: ClaimNovelty.METHODOLOGICAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

March 1, 1990Pacing and Clinical Electrophysiology

Epicardial Mapping: How to Measure Local Activation?

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Structured PICO

Population

5 dogs undergoing epicardial ventricular mapping during sinus rhythm with a sock array containing 41 electrodes

Intervention

Four different definitions of local epicardial activation: (1) maximal negative slope (intrinsic deflection) of the unipolar electrogram, (2) maximal slope of the bipolar electrogram, (3) maximal amplitude of the bipolar electrogram, and (4) first onset by 45 degrees from the baseline of the bipolar electrogram

Outcome

Site and timing of earliest and latest epicardial activationsurrogate

Maximal amplitude of the bipolar electrogram is a reliable measure of local epicardial activation, whereas using the onset of the bipolar electrogram may lead to misinterpretation of activation timing and location.

Discussion

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Implication

Supports bipolar amplitude over onset for epicardial activation timing; leaves open translation to human mapping and outcomes.

Cite This Study

Paul et al. (1990) studied this question.

synapsesocial.com/papers/6a156c0ea2352da3478269be https://doi.org/10.1111/j.1540-8159.1990.tb02042.x

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Epicardial Mapping: How to Measure Local Activation?

Structured PICO

Discussion

Implication

Cite This Study

Epicardial Mapping: How to Measure Local Activation?

Structured PICO

Discussion

Implication

Cite This Study

Also Consider

Also Consider