Nerve conduction study and electromyography findings in patients recovering from Covid-19 – Case report. (February 2021)

• Record Type: Journal Article
• Authors: Daia, Cristina; Scheau, Cristian; Neagu, Geanina; Andone, Ioana; Spanu, Aura; Popescu, Cristina; Stoica, Simona Isabelle; Verenca, Madalina Codruta; Onose, Gelu
• Is Part Of: International journal of infectious diseases. Volume 103(2021)
• Page Start: 420
• Page End: 422
• Publication Date: 2021-02
• Subjects: COVID-19 -- SARS−COV-2 -- Nerve conduction studies -- Electromyography -- Neuropathy -- Myopathy; Communicable diseases -- Periodicals; Communicable Diseases -- Periodicals; Communicable diseases; Periodicals; Electronic journals; 616.9
• DOI: 10.1016/j.ijid.2020.11.146
• Languages: English
• ISSNs: 1201-9712

Abstract

Highlights: SARS−COV-2 may induce myopathy. SARS−COV-2 may induce demyelinating polyneuropathy. COVID-19 neuromuscular effects may be depicted by NCS and EMG. Abstract: Three patients with recent sequelae after Corona Virus Disease (COVID)-19 such as fatigue and myalgia of both calves underwent electrophysiological examinations, nerve conduction studies (NCS) and electromyography (EMG). NCS shows, as common elements, the presence of a partial or complete conduction block on several nerves, slightly prolonged latency of the tibial nerve, and rare or absent F-waves, all suggesting a demyelinating polyneuropathy due to SARS−COV-2. The short duration and low amplitude of the motor unit action potential with early full recruitment on interference pattern on EMG, typical for myopathy, suggest a direct action of COVID-19 on muscular fibers, especially in the lower limbs.