• Internal medicine · Jan 2020

    Case Reports

    Achalasia in a Patient with Myotonic Dystrophy.

    • Hiroki Sato, Ken-Ichi Mizuno, Satoru Hashimoto, Masafumi Takatsuna, and Shuji Terai.
    • Division of Gastroenterology and Hepatology, Niigata University Medical and Dental Hospital, Japan.
    • Intern. Med. 2020 Jan 1; 59 (1): 67-68.

    AbstractMyotonic dystrophy is a progressive disorder mainly affecting the voluntary muscles. We herein report a rare case of myotonic dystrophy complicated with high-resolution manometry-defined achalasia, the pathology of which is absent relaxation of the smooth muscles of lower esophageal sphincter (LES). In the present case, achalasia was considered a complication of myotonic dystrophy instead of sporadic achalasia, as on performing high-resolution manometry, the finding of an impaired LES relaxation (myotonic phase) changed to a totally emaciated LES function (muscle weakness phase) as myotonic dystrophy progressed.

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