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April 2021; 11 (2) Case

Bilateral Upper Limb Neuropathies After Prone Ventilation for COVID-19 Pneumonia

View ORCID ProfileWilliam K. Diprose, Laura Bainbridge, Richard W. Frith, Neil E. Anderson
First published August 18, 2020, DOI: https://doi.org/10.1212/CPJ.0000000000000944
William K. Diprose
Auckland City Hospital (WKD, RWF, NEA), Department of Neurology, Auckland, NZ; and Middlemore Hospital (LB), Critical Care Complex, Auckland, NZ.
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Laura Bainbridge
Auckland City Hospital (WKD, RWF, NEA), Department of Neurology, Auckland, NZ; and Middlemore Hospital (LB), Critical Care Complex, Auckland, NZ.
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Richard W. Frith
Auckland City Hospital (WKD, RWF, NEA), Department of Neurology, Auckland, NZ; and Middlemore Hospital (LB), Critical Care Complex, Auckland, NZ.
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Neil E. Anderson
Auckland City Hospital (WKD, RWF, NEA), Department of Neurology, Auckland, NZ; and Middlemore Hospital (LB), Critical Care Complex, Auckland, NZ.
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Bilateral Upper Limb Neuropathies After Prone Ventilation for COVID-19 Pneumonia
William K. Diprose, Laura Bainbridge, Richard W. Frith, Neil E. Anderson
Neurol Clin Pract Apr 2021, 11 (2) e211-e213; DOI: 10.1212/CPJ.0000000000000944

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PRACTICAL IMPLICATIONS

Brachial neuritis and brachial plexus injury should be considered in patients who develop upper limb weakness after prone ventilation for COVID-19 pneumonia.

The neurologic complications of coronavirus disease 2019 (COVID-19) and its treatment are still being elucidated.1,2 Guillain-Barré syndrome has been reported in patients with COVID-19, but other peripheral nerve complications have not been described. We report a case of bilateral upper limb neuropathies in a patient with COVID-19 pneumonia managed with prolonged prone ventilation.

Case

A 55-year-old woman with a body mass index of 42.6, but who was otherwise fit and well, presented with a seven-day history of cough, fever, and shortness of breath. Her oxygen saturation was 87% on room air. Chest radiograph demonstrated patchy airspace opacification (figure, A), and her severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) reverse transcription PCR test was positive. She was managed with high-flow oxygen via nasal prongs, and her oxygen saturation improved to 93%. Within 24 hours, she deteriorated and required intubation and ventilation for refractory hypoxemia.

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Figure Radiologic Findings in a Patient With COVID-19 and Bilateral Upper Limb Neuropathies After Prone Ventilation

(A) Chest radiograph showing patchy midzone and lower zone airspace opacification. Central line, endotracheal, and enteric tubes in situ. (B) Symmetric short T1 inversion recovery hyperintense signal within the infraspinatus muscles bilaterally.

Because of ongoing hypoxemia in the supine position, she was ventilated in a prone “swimmer's” position for 16–18.5 hours per day for the first 7 days. The face was turned toward the prominent (abducted) arm, leaving the opposite arm by the side. The elbow of the prominent arm was flexed to 90° and abducted at the shoulder to 80°. The shoulder was not externally rotated beyond neutral. The arms were alternated and head turned every 2 hours.

The patient improved, and the neuromuscular blockade and sedation were withdrawn after 11 days. When clinically accessible, the patient was unable to lift her arms off the bed, but there was no neck or arm pain. After extubation, a neurology opinion was sought. On examination, there was severe bilateral weakness of shoulder abduction and external rotation, mild weakness of finger abduction, and numbness over the distribution of the axillary nerves bilaterally. Upper limb tendon reflexes and the remainder of the neurologic examination were normal. MRI of the cervical spine and the nerves within the brachial plexus was normal, but there was symmetric short T1 inversion recovery hyperintense signal within the supraspinatus, infraspinatus, and deltoid muscles bilaterally (figure, B).

Electromyography (EMG) showed complete denervation of deltoid muscles bilaterally and of right infraspinatus. There was partial denervation of right supraspinatus and of the right ulnar-innervated intrinsic hand muscles (table). Muscles innervated by the left suprascapular nerve were difficult to examine because of patient intolerance. The EMG of biceps and brachioradialis bilaterally and right pronator teres were normal. Nerve conduction studies showed prolongation of the right median distal motor latency and absent sensory potentials consistent with a distal median neuropathy at the right wrist. Ulnar motor and sensory conduction studies were normal.

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Table

Electromyography in a Patient With COVID-19 After Prone Ventilationa

Together, the clinical, imaging, and electrophysiologic findings were consistent with bilateral suprascapular, axillary, and ulnar neuropathies.

Discussion

Our patient developed bilateral upper limb neuropathies after prolonged prone ventilation. The differential diagnosis included brachial neuritis and mechanical injury (i.e., stretch or compression) secondary to positioning during prone ventilation. There was involvement of the axillary and suprascapular nerves, with sparing of brachioradialis and biceps, confirming these were individual nerve lesions rather than lesions of the upper trunk of the brachial plexus or C5-6 roots. This pattern of multifocal nerve involvement is more consistent with brachial neuritis than stretch or compressive neuropathies, which typically affects the upper trunk.3,4

Brachial neuritis has not yet been described in association with COVID-19, but other presumed immune-mediated neurologic complications have been reported including Guillain-Barré syndrome, acute transverse myelitis, acute hemorrhagic necrotizing encephalopathy, and encephalitis.2 Brachial neuritis may result from the interplay between mechanical and immune factors, whereby mechanical injury exposes the brachial plexus to the immune system, and possibly (auto)antibodies to recent infections.3 For example, when a region in Czechoslovakia had its water supply contaminated with coxsackie A2 virus, an increased incidence of brachial neuritis occurred in knitting factory workers who were required to bend and stretch their right arms for 8 hours per day.5

Prone positioning is recommended for the treatment of refractory hypoxemia associated with severe COVID-19 pneumonia, even in awake patients, to avoid the need for intubation.6 Our patient had prolonged prone ventilation, which can be associated with neurologic complications including ischemic optic neuropathy and brachial plexus injury.7,8 Shoulder abduction greater than 90°, extension and external rotation of the arm, and rotation and lateral flexion of neck in the same direction are risk factors for brachial plexus injury during prone ventilation.7 This risk may be minimized by frequent repositioning, soft padding, and increased clinician awareness.7 It is plausible that in our patient, prolonged prone ventilation caused injury to the blood-nerve barrier of the brachial plexus and predisposed the patient to developing bilateral brachial neuritis.

Study Funding

No targeted funding reported.

Disclosure

The authors report no disclosures relevant to the manuscript. Full disclosure form information provided by the authors is available with the full text of this article at Neurology.org/cp.

Appendix Authors

Table

Footnotes

  • Funding information and disclosures are provided at the end of the article. Full disclosure form information provided by the authors is available with the full text of this article at Neurology.org/cp.

  • NPub.org/COVID19

  • Received May 29, 2020.
  • Accepted July 17, 2020.
  • © 2020 American Academy of Neurology

References

  1. 1.
    1. Nath A
    . Neurologic complications of coronavirus infections. Neurology 2020;94:809–810.
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    1. Ahmad I,
    2. Rathore FA
    . Neurological manifestations and complications of COVID-19: a literature review. J Clin Neurosci 2020;77:8–12.
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  3. 3.
    1. Groothuis JT,
    2. Van Alfen N
    1. Van Eijk
    JJJ, Groothuis JT, Van Alfen N. Neuralgic amyotrophy: an update on diagnosis, pathophysiology, and treatment. Muscle Nerve 2016;53:337–350.
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  4. 4.
    1. Kamel I,
    2. Barnette R
    . Positioning patients for spine surgery: avoiding uncommon position-related complications. World J Orthop 2014;5:425–443.
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  5. 5.
    1. Bardos V,
    2. Somodska V
    . Epidemiologic study of a brachial plexus neuritis outbreak in northeast Czechoslovakia. World Neurol 1961;2:973–979.
    OpenUrlPubMed
  6. 6.
    1. Berlin DA,
    2. Gulick RM,
    3. Martinez FJ
    . Severe Covid-19. N Engl J Med 2020;383:2451–2460.
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  7. 7.
    1. DePasse JM,
    2. Palumbo MA,
    3. Haque M,
    4. Eberson CP,
    5. Daniels AH
    . Complications associated with prone positioning in elective spinal surgery. World J Orthop 2015;6:351–359.
    OpenUrlCrossRefPubMed
  8. 8.
    1. Goettler CE,
    2. Pryor JP,
    3. Reilly PM
    . Brachial plexopathy after prone positioning. Crit Care 2002;6:540–542.
    OpenUrlCrossRefPubMed

The Nerve!: Rapid online correspondence

  • Reader Response: Bilateral Upper Limb Neuropathies After Prone Ventilation for COVID-19 Pneumonia
    • Lucio Marinelli, Neurologist, University of Genova; IRCCS Ospedale Policlinico San Martino, Genova, Italy
    • Carlo Trompetto, Neurologist and specialist in rehabilitative medicine, University of Genova; IRCCS Ospedale Policlinico San Martino, Genova, Italy
    Submitted June 09, 2021
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