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Case Report

Sonographic evaluation of the diaphragm in patients with unilateral diaphragmatic paralysis

Jung Im Seok1, Kyung Chan Kim2, Hye Joo Rha1, Sung Rok Lee1
Annals of Clinical Neurophysiology 2018;20(2):93-96.
Published online: July 31, 2018
1Department of Neurology, Catholic University of Daegu School of Medicine, Daegu, Korea
2Department of Internal Medicine, Catholic University of Daegu School of Medicine, Daegu, Korea
Corresponding author:  Jung Im Seok, Tel: +82-53-650-3440, Fax: +82-53-654-9786, 
Email: ji-helpgod@hanmail.net
Received: 6 March 2018   • Revised: 21 April 2018   • Accepted: 16 May 2018
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Evaluation of diaphragm function is challenging because no single test has a high diagnostic yield. We describe ultrasound findings in three cases with acquired unilateral diaphragmatic elevation. These cases confirm that sonographic evaluation is a valid tool for identifying diaphragm dysfunction. In addition, ultrasound measurements of diaphragm thickness and the contractility can be used to determine if a diaphragm is paralyzed and suggest the duration of paralysis (i.e., acute or chronic).

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