Intrinsic cardiac nerve activity and paroxysmal atrial tachyarrhythmia in ambulatory dogs.

ABSTRACT:

Background

Little is known about the relationship between intrinsic cardiac nerve activity (ICNA) and spontaneous arrhythmias in ambulatory animals.

Methods and results

We implanted radiotransmitters to record extrinsic cardiac nerve activity (ECNA; including stellate ganglion nerve activity and vagal nerve activity) and ICNA (including superior left ganglionated plexi nerve activity and ligament of Marshall nerve activity) in 6 ambulatory dogs. Intermittent rapid left atrial pacing was performed to induce paroxysmal atrial fibrillation or atrial tachycardia. The vast majority (94%) of ligament of Marshall nerve activity were preceded by or coactivated with ECNA (stellate ganglion nerve activity or vagal nerve activity), whereas 6% of episodes were activated alone without co

SUBMITTER: Choi EK 

PROVIDER: S-EPMC2890034 | biostudies-literature | 2010 Jun

REPOSITORIES: biostudies-literature