Hypertension following poliomyelitis may appear either at the time of the initial infection, or not until years later and be sustained thereafter. The etiology of this complication is not clear. Several hypotheses have been advanced but until recently no scientific study had been done. In a recent issue of the Archives of Internal Medicine, A. M. Ostfeld has presented the results of a study of 189 patients from the epidemic of 1952. Eighty-one patients from the Respiratory Center of the University of Illinois Research and Educational Hospitals were matched by 73 patients similarly afflicted from the Chicago Municipal Contagious Disease Hospital. The individuals were similar in age, sex, race, year of onset, site of central nervous system involvement, and approximate degree of skeletal muscle involvement. These two groups were compared with a third group of 35 bulbar cases in the acute phase of the disease.
Hypertension was defined as a