A vasovagal attack occurs when the vagus nerve becomes overstimulated. The vagus nerve is the parasympathetic supply to the heart. The parasympathetic system slows the heart down so stimulation of this nerve makes much less blood available to the brain. You suffer a fainting episode.
The crystals of BPPV cannot be seen unless you want your semicircular canals excised and opened which is obviously not in your interest. Some individuals think that there is calcification of some of the hairs in these canals which break off and are free to move. It is the stimulation of these hairs in the canal that give you feedback for balance by telling you your head position and if your body is accelerating or stopping. A stone sitting in the canal is free to “strum” the hairs when it falls down giving you a false signal.
Dr. Corenman
PLEASE REMEMBER, THIS FORUM IS MEANT TO PROVIDE GENERAL INFORMATION ON SPINE ANATOMY, CONDITIONS AND TREATMENTS. TO GET AN ACCURATE DIAGNOSIS, YOU MUST VISIT A QUALIFIED PROFESSIONAL IN PERSON.
Donald Corenman, MD, DC is a highly-regarded spine surgeon, considered an expert in the area of neck and back pain. Trained as both a Medical Doctor and Doctor of Chiropractic, Dr. Corenman earned academic appointments as Clinical Assistant Professor and Assistant Professor of Orthopaedic Surgery at the University of Colorado Health Sciences Center, and his research on spine surgery and rehabilitation has resulted in the publication of multiple peer-reviewed articles and two books.
