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PATHOLOGY OF THE VAGUS SYSTEM AS A MORPHOLOGICAL MARKER OF SYMPATHETIC DYSFUNCTION IN SUDDEN CARDIAC DEATH

S. L. PARILOV, L. F. TSYVTSYNA, S. N. DEREVTSOVA VOJNO-YASENETSKY KRASNOYARSK STATE MEDICAL UNIVERSITY, KRASNOYARSK, RUSSIA

Objective: To develop the criteria of the vagus nerve system injuries under nonfatal craniovertebral trauma and arguments of its causal relationship to sudden cardiac death. Materials and methods. The nervus vagus, atrioventricular node and changes in cardiomyocytes (45 fatal cases: 20-craniovertebral injury; 25 – coronary failure) were studied. The central and peripheral parts of nervus vagus were studied. Results. Damages in jugular ganglion and the connection of damages of ganglion with craniovertebral injury were revealed. Hemorrhages in jugular ganglion, nerve stems and soft tissue of jugular foramens were revealed in craniovertebral injury. Atrophic changes were revealed in ganglions of nervus vagus (death by coronary failure). Haemosiderosis of pial membranes of oblongated marrow was revealed in all cases. Conclusions. Damages in central and peripheral parts of nervus vagus system in craniovertebral injury allow to define posttraumatic pathogenesis of coronary vasospasm and coronary ventricular fibrillation.
Keywords: 
nerves vagus, jugular ganglion, gangliocyte, atrophy, atrioventricular ganglion, cardiomiocyte, contractile changes, sclerosis.