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Diaphragmatic paralysis
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Diaphragmatic paralysis

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Contributors: Jamie Adams MD
Other Resources UpToDate PubMed

Synopsis

Severe weakness of the diaphragm, leading to abnormalities of respiration. Possible causes include motor neuron disease (such as amyotrophic lateral sclerosis), peripheral neuropathy, myopathy, muscular dystrophy, spinal cord disease, and trauma or injury to the phrenic nerve. Paralysis can be unilateral or bilateral. Those with unilateral paralysis may be asymptomatic or have dyspnea on exertion. Those with bilateral paralysis often present with shortness of breath, which is worse lying supine, or with respiratory failure. Other symptoms may include fatigue, headache, anxiety, or gastrointestinal complaints.

Examination typically reveals a paradoxical breathing pattern with inward movement of the abdominal wall during inspiration as well as absent breath sounds and dullness to percussion over the lower chest of the affected side(s).

Codes

ICD10CM:
J98.6 – Disorders of diaphragm

SNOMEDCT:
64228003  – Paralysis of diaphragm

Differential Diagnosis & Pitfalls

Best Tests

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References

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Last Updated: 05/12/2016
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Diaphragmatic paralysis
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Diaphragmatic paralysis : Fatigue, Hypoxemia, Sleep disturbance, Dyspnea
Copyright © 2019 VisualDx®. All rights reserved.