ectopic impulse


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ec·top·ic im·pulse

an electrical impulse from an area of the heart other than the sinus node.

ectopic impulse

A cardiac impulse arising in some part of the heart other than the sinoatrial node.
See also: impulse
References in periodicals archive ?
The neuroma, therefore, becomes a source of ectopic impulses.
Even if a neuroma does not form, the injured axon may generate ectopic impulses (see Figure 3).
Consequently, during the process of axonal repair, the cell body itself becomes a second hyperexcitable source of ectopic impulses that can cause pain.