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NEUROLOGY 2005;65:1646-1649
© 2005 American Academy of Neurology
Brief Communications

Significance of phrenic nerve electrophysiological abnormalities in Guillain–Barré syndrome

M. C. Durand, MD, H. Prigent, MD, V. Sivadon–Tardy, MD, PhD, D. Orlikowski, MD, C. Caudie, MD, PhD, C. Devaux, B. Clair, MD, J. -L. Gaillard, MD, PhD, F. Lofaso, MD, PhD, J. -C. Raphael, MD and T. Sharshar, MD, PhD

From the Functional Testing Department (Drs. Durand and Lofaso), Medical Intensive Care Unit (Drs. Orlikowski, Prigent, Clair, Raphael, and Sharshar, C. Devaux), and Microbiology Department (Drs. Sivadon-Tardy and Gaillard), Raymond Poincaré Teaching Hospital, Garches; and Immunology and Neuroimmunology Department (Dr. Caudie), Neurological and Neurosurgical Hospital, Lyon, France.

Address correspondence and reprint requests to Dr. Tarek Sharshar, Hôpital Raymond Poincaré, Service de Réanimation Médicale, 104 boulevard Raymond Poincaré, 92380 Garches, France; e-mail: tarek.sharshar{at}rpc.ap-hop-paris.fr

The authors investigated whether the amplitude and latency of diaphragm compound muscle action potential helped predict respiratory failure in Guillain–Barré syndrome. Both variables were significantly but weakly correlated with vital capacity (VC) and were similar in unventilated (n = 60) and ventilated (n = 10) patients. In ventilated patients, motor loss severity, progression, and VC reduction were significantly greater, and bulbar dysfunction was more common. Predicting respiratory failure must rely on clinical features and VC.

Disclosure: The authors report no conflicts of interest.

Received February 9, 2005. Accepted in final form August 8, 2005.




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C. F. Bolton, T. Sharshar, and F. Lofaso
Significance of phrenic nerve electrophysiological abnormalities in Guillain-Barre syndrome
Neurology, June 27, 2006; 66(12): 1961 - 1961.
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Significance of phrenic nerve electrophysiological abnormalities in Guillain–Barré syndrome
Charles F. Bolton
Neurology Online, 29 Mar 2006 [Full text]
Reply from the authors
Tarek Sharshar, et al.
Neurology Online, 29 Mar 2006 [Full text]

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