Said Beydoun, MD | Keck School of Medicine of USC

Said R Beydoun, MD

Professor of Clinical Neurology;Program Director, Clinical Neurophysiology Fellowship;Division Chief, Neuromuscular Disorders

Neurology

HCT 3000 Health Sciences Campus Los Angeles

+1 323 442 6085

sbeydoun@usc.edu

Dr. Beydoun is a nationally-recognized neurologist who advocates an integrated approach to clinical diagnosis, neurophysiologic testing, and treatment options for patients with neuromuscular diseases. Dr. Beydoun is director of the USC Neuromuscular Division. He leads the ACGME-accredited Clinical Neurophysiology Fellowship, which trains three physicians each year. As a principal investigator, Dr. Beydoun has participated in various research clinical trials. His clinical and research areas of expertise are in the fields of ALS, neuropathy, diabetic neuropathies, neuropathic pain and immune-mediated neuromuscular disorders, such as CIDP, Multifocal Motor Neuropathy and Myasthenia Gravis. He has been published in several scientific journals on topics related to neuromuscular diseases and neuropathies. He serves as Editor-in-Chief of US Neurology. He is a fellow of the American Academy of Neurology and a fellow of the American Association of Neuromuscular and Electrodiagnostic Medicine. He is a member of the advisory board and the scientific committee of the Myasthenia Gravis Foundation of California. He holds board certification by the American Board of Psychiatry and Neurology in Neurology, Clinical Neurophysiology, Pain Medicine, and Neuromuscular Medicine. He is also certified by the American Board of Electrodiagnostic Medicine.

Publications

Randomized phase 2 study of FcRn antagonist efgartigimod in generalized myasthenia gravis Neurology. 2019 Jun 04; 92(23):e2661-e2673. . View in PubMed

Long-term effect of thymectomy plus prednisone versus prednisone alone in patients with non-thymomatous myasthenia gravis: 2-year extension of the MGTX randomised trial Lancet Neurol. 2019 Mar; 18(3):259-268. . View in PubMed

Edaravone in Amyotrophic Lateral Sclerosis-Lessons from the Clinical Development Program and the Importance of a Strategic Clinical Design US Neurology, 14(1): 47-53, 2018. 2018; 1(14):47-53. . View in PubMed

The Challenges of Distinguishing POEMS from Chronic Inflammatory Demyelinating Polyneuropathy (CIDP)Importance of Early Recognition and Diagnosis of POEMS. US Neurology. 2018; 2(14). . View in PubMed

Late Onset Hereditary Transthyretin Amyloidosis Polyneuropathy in Two Patients with Acquired Demyelinating Features US Neurology. 2018; 2(14):98-101. . View in PubMed

Utility of Neurological Imaging in Sensory Variant of Chronic Inflammatory Demyelinating Polyneuropathy: A Case Report J Clin Neuromuscul Dis. 2017 Mar; 18(3):157-159. . View in PubMed

Delayed Appearance of Conduction Block in Multifocal Motor Neuropathy US Neurology. 2017; 13(2):99-102. . View in PubMed

Delayed Appearance of Conduction Block in Multifocal Motor Neuropathy US Neurology. 2017; 2(13):99-102. . View in PubMed

Chronic Inflammatory Demyelinating Polyradiculoneuropathy 101—Pitfalls and Pearls of Diagnosis and Treatment US Neurology. 2017; 13(1):26-34. . View in PubMed

When to write a neurology case report J Med Case Rep. 2016 Apr 06; 10:92. . View in PubMed

Disulfiram neuropathy: two case reports J Med Case Rep. 2016 Mar 31; 10:72. . View in PubMed

Paraproteinemic neuropathy: a practical review BMC Neurol. 2016 Jan 28; 16:13. . View in PubMed

Randomized Trial of Thymectomy in Myasthenia Gravis N Engl J Med. 2016 08 11; 375(6):511-22. . View in PubMed

Different Presentations of Myelopathy—A Case Series 2016; 12(1):22-26. . View in PubMed

Chronic Inflammatory Demyelinating Polyneuropathy Manifesting as Neuropathy With Liability to Pressure Palsies: A Case Report J Clin Neuromuscul Dis. 2015 Dec; 17(2):78-83. . View in PubMed

Misdiagnosis of inclusion body myositis: two case reports and a retrospective chart review J Med Case Rep. 2015 Aug 13; 9:169. . View in PubMed

Chiari malformation type I with cervicothoracic syringomyelia masquerading as bibrachial amyotrophy: a case report J Med Case Rep. 2015 Jan 27; 9:11. . View in PubMed

Differentiating Multifocal Motor Neuropathy from Entrapment Neuropathy – A Diagnostic Challenge US Neurology. 2015; 12(1):17-21. . View in PubMed

Myasthenia gravis associated with invasive malignant thymoma: two case reports and a review of the literature J Med Case Rep. 2014 Oct 13; 8:340. . View in PubMed

A controlled trial of intravenous immunoglobulin in multifocal motor neuropathy J Peripher Nerv Syst. 2013 Dec; 18(4):321-30. . View in PubMed

Kennedy disease misdiagnosed as polymyositis: a case report BMC Res Notes. 2013 Sep 28; 6:389. . View in PubMed

Hereditary neuropathy with liability to pressure palsy: two cases of difficult diagnosis J Clin Neuromuscul Dis. 2013 Sep; 15(1):28-33. . View in PubMed

Cervicothoracic spinal cord and pontomedullary injury secondary to high-voltage electrocution: a case report J Med Case Rep. 2012 Sep 13; 6:296. . View in PubMed

Clinical and imaging findings in three patients with advanced inflammatory demyelinating polyradiculoneuropathy associated with nerve root hypertrophy J Clin Neuromuscul Dis. 2012 Mar; 13(3):105-12. . View in PubMed

Bilateral phrenic neuropathies in a diabetic patient responsive to intravenous immunoglobulin: a case report Clin Neurol Neurosurg. 2011 Nov; 113(9):788-91. . View in PubMed

Delayed cervicobulbar neuronopathy and myokymia after head and neck radiotherapy for nasopharyngeal carcinoma: a case report J Clin Neuromuscul Dis. 2011 Mar; 12(3):147-52. . View in PubMed

Emotional stress as a trigger of myasthenic crisis and concomitant takotsubo cardiomyopathy: a case report J Med Case Rep. 2010 Dec 03; 4:393. . View in PubMed

Chronic immune-mediated demyelinating polyneuropathy in the setting of cetuximab treatment Clin Neurol Neurosurg. 2010 Dec; 112(10):900-2. . View in PubMed

Amyotrophic lateral sclerosis-motor neuron disease, monoclonal gammopathy, hyperparathyroidism, and B12 deficiency: case report and review of the literature J Med Case Rep. 2010 Sep 01; 4:298. . View in PubMed

Teaching Video NeuroImages: tongue myokymia following head and neck radiotherapy for nasopharyngeal carcinoma Neurology. 2009 Apr 07; 72(14):e65. . View in PubMed

Hereditary neuropathy with liability to pressure palsies: description of seven patients without known family history Acta Neurol Scand. 2008 Apr; 117(4):266-72. . View in PubMed

Long-term safety and tolerability of oxcarbazepine in painful diabetic neuropathy Acta Neurol Scand. 2007 Apr; 115(4):284-8. . View in PubMed

Oxcarbazepine in painful diabetic neuropathy: a randomized, placebo-controlled study Eur J Pain. 2005 Oct; 9(5):543-54. . View in PubMed

Secondary amyloidosis as a life-ending event in multifocal motor neuropathy Muscle Nerve. 2001 Oct; 24(10):1396-402. . View in PubMed

Bilateral phrenic neuropathy as a presenting feature of multifocal motor neuropathy with conduction block Muscle Nerve. 2000 Apr; 23(4):556-9. . View in PubMed

Generalized myokymia as a unique association with gluten-sensitive enteropathy Eur Neurol. 2000; 44(4):254-5. . View in PubMed

Multifocal motor neuropathy with conduction block misdiagnosed as multiple entrapment neuropathies Muscle Nerve. 1998 Jun; 21(6):813-5. . View in PubMed

Neuralgic amyotrophy misdiagnosed as diaphragmatic rupture Muscle Nerve. 1996 Sep; 19(9):1181-2. . View in PubMed

Delayed presentation of a partial palmar ulnar motor neuropathy in a chemist; secondary to a rare "occupational hazard" Muscle Nerve. 1995 Feb; 18(2):255-6. . View in PubMed

Facial myokymia secondary to neurocysticercosis Muscle Nerve. 1994 Sep; 17(9):1060-1. . View in PubMed

Delayed diagnosis of Lambert-Eaton myasthenic syndrome in a patient presenting with recurrent refractory respiratory failure Muscle Nerve. 1994 Jun; 17(6):689-90. . View in PubMed

Unilateral trigeminal motor neuropathy as a presenting feature of neurofibromatosis type 2 (NF2) Muscle Nerve 1993 Oct; 16(10):1136-7. . View in PubMed

Obstetrical lumbosacral plexus injury Muscle Nerve. 1993 Jul; 16(7):801. . View in PubMed

Calf muscle hypertrophy, complex repetitive discharges and spinal stenosis Muscle Nerve. 1993 Mar; 16(3):322-3. . View in PubMed

Misdiagnosis of cytomegalovirus polyradiculopathy, coexisting with HIV neuropathy Muscle Nerve. 1991 Jun; 14(6):575-6. . View in PubMed

Long-term plasmapheresis therapy is effective and safe in children with chronic relapsing dysimmune polyneuropathy Rev Neurol (Paris). 1990; 146(2):123-7. . View in PubMed

Ifosfamide encephalopathy J Toxicol Clin Toxicol. 1989; 27(4-5):293-8. . View in PubMed

Analogs of thyrotropin-releasing hormone: hypotheses relating receptor binding to net excitation of spinal lower motor neurons Biochem Biophys Res Commun. 1986 Aug 14; 138(3):1184-90. . View in PubMed

Keck School Faculty

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