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KMID : 0385920180290020236
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Journal of the Korean Society of Emergency Medicine
2018 Volume.29 No. 2 p.236 ~ p.239
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Usefulness of phrenic nerve conduction study in early diagnosis of isolated respiratory onset amyotrophic lateral sclerosis
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Lee Dong-Eun
Park Dong-Hwi
Kim Jong-Kun
Park Jin-Sung
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Abstract
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Isolated respiratory onset amyotrophic lateral sclerosis (ALS) is a rare clinical manifestation and the diagnosis can be challenging. A 72-year-old man presented with dyspnea and hypercapnia that had started 11 months earlier. A phrenic nerve study was conducted and he was diagnosed promptly with ALS with no significant time delay. The phrenic nerve study is a noninvasive and useful tool in the diagnosis of respiratory onset ALS that can be applied easily in an emergency department.
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KEYWORD
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Amyotrophic lateral sclerosis, Dyspnea, Fasciculation, Phrenic nerve study
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