Since Thomsen's1 description of myotonia congenita and Deleage's2 observation on atrophy of certain muscle groups in some myotonic patients, a large number of cases of myotonia congenita and myotonia atrophica have been reported. The relationship of these two conditions has been discussed frequently in recent years. The etiology and pathology of myotonia congenita are just as obscure now as they were when this disease was first described.3, 4
The observations on the patient described in this paper may throw some light on the nature of this disease and the repetition of these tests on other patients should serve to show whether the conclusions we have drawn can be applied generally to myotonia congenita and myotonia atrophica.
REPORT OF CASE
The patient now under consideration was seen in 1910 by the late Byrom Bramwell5 who gave a short summary of his history and physical condition. D. F.
SOMA WEISS, FOSTER KENNEDY. CLINICAL EXPERIMENTS IN MYOTONIA CONGENITA (THOMSEN) WITH ESPECIAL REFERENCE TO THE PARASYMPATHETIC NERVOUS SYSTEM. Arch NeurPsych. 1924;11(5):543–550. doi:10.1001/archneurpsyc.1924.02190350049003