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Presentation of motor neuron disease in a patient with weight loss and acute-on-chronic respiratory failure
  1. Tak Wai Chan
  1. Acute Medicine, University Hospitals Plymouth NHS Trust, Plymouth, UK
  1. Correspondence to Dr Tak Wai Chan; tak.chan{at}nhs.net

Abstract

A previously fit and well 72-year-old man was referred to the acute medical unit with acute shortness of breath and confusion. He had presented 6 months earlier to his General Practitioner with a 6-month history of weight loss and lethargy. Despite CT imaging and extensive blood tests, no cause was found. He was having ongoing outpatient investigations, including a respiratory review leading up to his admission; the deterioration in his condition also coincided with the implementation of the COVID-19 lockdown. On admission, he was found to be in acute-on-chronic type 2 respiratory failure; examination revealed scattered fasciculations. Further inpatient electromyography (EMG) and nerve conduction study (NCS) confirmed motor neuron disease (MND). This case highlighted the importance of considering neuromuscular causes for acute respiratory failure in acute presentations and demonstrated the challenges in the diagnosis of MND in those presenting atypically with non-specific symptoms and the limitations of remote consultations in complex cases.

  • neurology
  • motor neurone disease
  • lung function
  • general practice / family medicine

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Footnotes

  • Contributors TWC: involved in the care of the patient in hospital and has written the report.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.

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