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- Title
Is there a difference in gastric emptying between myotonic dystrophy type 1 patients with and without gastrointestinal symptoms?
- Authors
Tanaka, Yuji; Kato, Tomohiro; Nishida, Hiroshi; Yamada, Megumi; Koumura, Akihiro; Sakurai, Takeo; Hayashi, Yuichi; Kimura, Akio; Hozumi, Isao; Araki, Hiroshi; Murase, Masahiko; Nagaki, Masahito; Moriwaki, Hisataka; Inuzuka, Takashi
- Abstract
Gastrointestinal symptoms are frequent complaints in patients with myotonic dystrophy type 1 (MyD1) and may be associated with reduced gastrointestinal motility caused by smooth muscle dysfunction. Although previous studies have found delayed gastric emptying (GE) in MyD1 patients, the relationship between GE and symptoms has been unclear. We investigated GE in 23 MyD1 patients and 20 healthy volunteers using the C-acetate breath test. The MyD1 patients were divided into two groups: those with gastrointestinal symptoms ( n = 9) and those without gastrointestinal symptoms ( n = 14). The GE function was estimated using the C-acetate breath test as half-emptying time (HET) and peak time of the C-%-dose-excess curve ( T). GE (HET and T) was more significantly delayed in patients with MyD1 than in the controls. The GE in MyD1 patients with gastrointestinal symptoms was significantly delayed compared to those without gastrointestinal symptoms. The GE in MyD1 patients with gastrointestinal symptoms was more significantly delayed than in the controls. The GE was significantly delayed in MyD1 patients with gastrointestinal symptoms for >5 years as compared to those with the disease for <5 years, while GE of MyD1 patients without gastrointestinal symptoms did not correlate with the duration of the disease. The GE in MyD1 patients did not correlate with the muscular disability rating scale. These findings suggest that impairment of GE evolves over time and that the progression of delayed GE and skeletal muscle impairment are independent. Smooth muscle impairment may be affected at an earlier stage in MyD1.
- Subjects
GASTRIC emptying; MYOTONIA atrophica; GASTROINTESTINAL diseases; SYMPTOMS; SMOOTH muscle diseases; COMPARATIVE studies
- Publication
Journal of Neurology, 2013, Vol 260, Issue 6, p1611
- ISSN
0340-5354
- Publication type
Article
- DOI
10.1007/s00415-013-6842-1