The study was designed to demonstrate that if the cardiac nerves
are damaged or reduced in number, as reflected by reduced 123I-mIBG uptake in the heart, the patient is at increased risk for heart failure progression, arrhythmic events, and cardiac death.
Subsequently, the responses to stimulation of the right cervical vagosympathetic complex versus the right juxta cardiac nerves were compared (4).
Effect of canine cardiac nerves on heart rate, rhythm, and pacemaker location.
Scientists studying cardiac nerves
have taken an important step toward explaining why aging diminishes the heart's ability to pump harder and faster under exertion.