Ventral root mapping of cardiac nerves in the canine using evoked potentials. Am J Physiol 1977 Jun;232(6):H590-5
Date
06/01/1977Pubmed ID
879297DOI
10.1152/ajpheart.1977.232.6.H590Scopus ID
2-s2.0-0017713555 (requires institutional sign-in at Scopus site) 10 CitationsAbstract
The sympathetic efferent contribution of left ventral roots T2, T3, and T4 to some cardiac nerves was studied using evoked potentials in mongrel dogs anesthetized with sodium pentobarbital. Electrical stimulation of the ventral roots while recording evoked potentials from the sympathetic chain, anterior ansa subclavia, posterior ansa, ventrolateral cervical cardiac nerve, ventromedial cervical cardiac nerve, and the vagosympathetic trunk demonstrated that A-, B-, and C-type fibers exist in these efferent neural pathways. The range of conduction velocities observed was 0.7-104 m/s. T2 contributed the largest number of A-type fibers, and T2 and T3 contributed C-type fibers equally, while T4 had the least number of fibers coursing through the cardiac nerves.
Author List
Kostreva DR, Zuperku EJ, Cusick JF, Kampine JPAuthor
Joseph F. Cusick MD Adjunct Professor in the Neurosurgery department at Medical College of WisconsinMESH terms used to index this publication - Major topics in bold
AnimalsDogs
Efferent Pathways
Evoked Potentials
Heart
Nerve Fibers
Neural Conduction
Spinal Nerve Roots
Sympathetic Nervous System
Thoracic Nerves
