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Japanese

Physiology of hiccups Tsukasa KONDO 1 1Department of Emergency and Critical Care Medicine Yuai-Memorial Hospital pp.295-303
Published Date 2022/4/1
DOI https://doi.org/10.11477/mf.3102200967
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Hiccups are inspiratory reflexes caused by spasmodic, strong contractions of the diaphragm associated with synchronous abrupt glottic closure. The afferent pathway is the pharyngeal branch of the glossopharyngeal nerve distributed in the dorsal epipharynx. The central pattern generator of a hiccup is in the reticular formation near the nucleus ambiguus of the medulla, and the efferent pathway consists of the phrenic nerve and the recurrent laryngeal nerve. It is proved physiologically that the central pattern generator is controlled by GABA. A hiccup is caused by mechanical or chemical stimuli applied to the area from the afferent to the center of the reflex arc. Patients in the ICU are equipped with various devices around the hiccup reflex arc, and tube feedings are often given. Therefore, hiccups are commonly induced in ICU patients. When hiccups are seen in ICU patients, it is important to recall the cause of a hiccup from the relationship with the reflex arc, and to take appropriate measures, rather than just administering medication.


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電子版ISSN 2186-7852 印刷版ISSN 1883-4833 メディカル・サイエンス・インターナショナル

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