In view of the extensive literature on the subject of pneumonia, it is surprising that the cerebral complications accompanying or following this disease have been almost entirely neglected. Three important factors probably account for the neglect of the subject of cerebral complications: 1. Pneumonia is usually treated by the internist, who in most cases is not greatly impressed by the milder cerebral symptoms. 2. The pulmonary involvement often overshadows and even covers many of the cerebral symptoms. 3. The great interest in the etiologic factors and the treatment of the pulmonary lesions has almost excluded any investigation of other phases of this illness. The existing literature on this subject, therefore, is comprised largely of isolated case reports published in French and South American journals. Bonaba and his associates,1 in 1939, were able to collect from the literature but 28 cases of pneumonia encephalitis. Adler,2 in reviewing 100 cases
BAKER AB, NORAN HH. CHANGES IN THE CENTRAL NERVOUS SYSTEM ASSOCIATED WITH ENCEPHALITIS COMPLICATING PNEUMONIAI. A CLINICAL STUDY. Arch Intern Med (Chic). 1945;76(3):146–153. doi:10.1001/archinte.1945.00210330017004
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