The mechanism of action of laser radiation on the development of ischemic arrhythmias after stimulation of the sensorimotor cortex

Acute experiments on Nembutal-anesthetized cats with occluded circumflex branch of the left coronary artery reveal an antiarrhythmic, effect of laser radiation even against the background of the sensorimotor cortex stimulation. This effect may result from the correcting influence of intra-atrial laser irradiation on the activity of bulbar cardiovascular center through the afferent fibers of the vagus nerve and the opioid peptide system.