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July 1949

PLASMA CALCIUM FRACTIONS AFTER ELECTRIC CONVULSION TREATMENT

Author Affiliations

ST. LOUIS

From the Biochemical Research Laboratory of the Departments of Neuropsychiatry and Radiology, Washington University School of Medicine, Saint Louis.

Arch NeurPsych. 1949;62(1):99-104. doi:10.1001/archneurpsyc.1949.02310130105007
Abstract

INVESTIGATIONS of the blood chemistry during electric convulsion treatment have shown varying results, owing to the fact that the analyses have been made at different times after the convulsion. The ion balance, with particular reference to calcium, has been a point of especial interest. Delay and Soulairac1 in 4 cases reported an average increase of about 23 per cent in the blood calcium after an electric convulsion treatment. The blood was taken in these cases immediately before and ten minutes after the electrically induced convulsion. On the other hand, Katzenelbogen, Baur and Coyne2 found an increase in the blood calcium content in 27 of 41 patients, while 13 patients showed a decrease and 1 patient had no change after electric shock. However, these investigators took the blood within eighty-six minutes after the convulsion, indicating no standard time for withdrawal of blood, so that it is difficult to interpret

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