Dr. Ronald Schondorf of McGill University in Montreal and Dr. Roy Freeman of Beth Israel Deaconess Medical Center in Boston have taken an extensive look at the overlaps and interrelationship of orthostatic intolerance (OI) and CFIDS. The article was published in the February 1999 issue of The American Journal of the Medical Sciences. They examine the definition of both conditions and then explore a variety of questions about the overlap.
They note that the primary symptoms of OI—disabling fatigue, dizziness, difficulty concentrating—are often seen in CFIDS patients. The article presents a critical review of scores of studies involving diagnosis, laboratory testing, pathophysiology and treatment of OI in conjunction with CFIDS.
Study funded in part by grants from The CFIDS Association of America