Electroencephalographic Studies of the Encephalopathies

Abstract

encephalopathy" during arsenical therapy for syphilis was comparatively rare until the advent of rapid treatment methods, several years ago. The incidence of this complication was reviewed by Glaser, Imerman and Imerman,1 who pointed out that the mortality rate in this complication was 76 per cent. Dorothy Russell,2 Scheinker 3 and others have noted that the cognomen "hemorrhagic" is really a misnomer and that perivascular necrotic phenomena may be the only notable feature present, rather than the outpouring of red cells.Engel4 and his associates, in their studies on delirium, have emphasized the importance of serial electroencephalograms in the evaluation of the degree of clinical and anatomic recovery. In their investigation of a case of acute arsenical encephalopathy they stressed the degree of change in the electroencephalogram, rather than the appearance of any particular wave frequency. Their method was essentially one of quantitative analysis, in which they used their system of frequency analysis. Unlike their case, the one to be reported is an example of severe arsenical encephalopathy with pronounced acute clinical and electroencephalographic changes, which were apparently reversible, as noted in a twelve

ELECTROENCEPHALOGRAPHIC STUDIES OF THE ENCEPHALOPATHIES<subtitle>III. Serial Studies in Measles Encephalitis</subtitle>

“…The cerebrospinal fluid examination on Jan. 8,1949, showed an initial pressure of 190 mm. There were 180 lymphocytes per cubic millimeter, and the total protein was 180 mg. per 100 cc.…”

ELECTROENCEPHALOGRAPHIC STUDIES OF THE ENCEPHALOPATHIES<subtitle>III. Serial Studies in Measles Encephalitis</subtitle>

“…The cerebrospinal fluid examination on Jan. 8,1949, showed an initial pressure of 190 mm. There were 180 lymphocytes per cubic millimeter, and the total protein was 180 mg. per 100 cc.…”

Electroencephalographic Studies of the Encephalopathies

“…The purpose of this paper is twofold: (1) to demonstrate the EEG and clinical correlation in a purulent meningitis (meningococcus) and (2) to contrast the electrocerebral alterations with that seen in tuberculous meningitis. Clinical observations and EEG correlations were made and are recorded.…”

ELECTROENCEPHALOGRAPHIC STUDIES OF THE ENCEPHALOPATHIES<subtitle>III. Serial Studies in Measles Encephalitis</subtitle>

“…The cerebrospinal fluid examination on Jan. 8,1949, showed an initial pressure of 190 mm. There were 180 lymphocytes per cubic millimeter, and the total protein was 180 mg. per 100 cc.…”

Electroencephalographic Studies of the Encephalopathies

“…The purpose of this paper is twofold: (1) to demonstrate the EEG and clinical correlation in a purulent meningitis (meningococcus) and (2) to contrast the electrocerebral alterations with that seen in tuberculous meningitis. Clinical observations and EEG correlations were made and are recorded.…”

ELECTROENCEPHALOGRAPHIC STUDIES OF THE ENCEPHALOPATHIES<subtitle>III. Serial Studies in Measles Encephalitis</subtitle>

“…The cerebrospinal fluid examination on Jan. 8,1949, showed an initial pressure of 190 mm. There were 180 lymphocytes per cubic millimeter, and the total protein was 180 mg. per 100 cc.…”

Electroencephalographic Studies of the Encephalopathies

“…The purpose of this paper is twofold: (1) to demonstrate the EEG and clinical correlation in a purulent meningitis (meningococcus) and (2) to contrast the electrocerebral alterations with that seen in tuberculous meningitis. Clinical observations and EEG correlations were made and are recorded.…”