Andrew J Solomon1, Roman Pettigrew2, Robert T Naismith3, Salim Chahin3, Stephen Krieger4, Brian Weinshenker5. 1. Department of Neurological Sciences, The University of Vermont, Burlington, VT, USA. 2. College of Osteopathic Medicine, University of New England, Biddeford, ME, USA. 3. Department of Neurology, Washington University, St. Louis, MO, USA. 4. Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, USA. 5. Department of Neurology, Mayo Clinic, Rochester, MN, USA.
Abstract
OBJECTIVE: To assess comprehension and application of the McDonald criteria. BACKGROUND: Studies suggest that knowledge gaps for specific core elements of the McDonald criteria may contribute to multiple sclerosis (MS) misdiagnosis. METHODS: Neurology residents (NR) and multiple sclerosis specialists (MSS) in North America completed a web-based survey. RESULTS: A total of 160 participants were included: 72 NR and 88 MSS. Syndromes incorrectly identified as typical of MS included: complete transverse myelopathy (35% NR and 15% MSS), intractable vomiting/nausea/hiccoughs (20% NR and 5% MSS), and bilateral optic neuritis/unilateral optic neuritis with poor visual recovery (17% NR and 10% MSS). Periventricular magnetic resonance imaging (MRI) lesions were correctly identified by 39% NR and 52% MSS, and juxtacortical lesions were correctly identified by 28% NR and 53% MSS. The correct definition of "periventricular" was chosen by 38% NR and 61% MSS, and that of "juxtacortical" was chosen by 19% NR and 54% MSS. Regions incorrectly identified for MRI dissemination in space fulfillment included the optic nerve (31% NR and 26% MSS) and the subcortical white matter (11% NR and 18% MSS). The majority of participants assessed previous non-specific neurological symptoms without objective evidence of a central nervous system (CNS) lesion as sufficient for clinical dissemination in time. CONCLUSION: The McDonald criteria are often misunderstood and misapplied. Concerted educational efforts may prevent MS misdiagnosis.
OBJECTIVE: To assess comprehension and application of the McDonald criteria. BACKGROUND: Studies suggest that knowledge gaps for specific core elements of the McDonald criteria may contribute to multiple sclerosis (MS) misdiagnosis. METHODS: Neurology residents (NR) and multiple sclerosis specialists (MSS) in North America completed a web-based survey. RESULTS: A total of 160 participants were included: 72 NR and 88 MSS. Syndromes incorrectly identified as typical of MS included: complete transverse myelopathy (35% NR and 15% MSS), intractable vomiting/nausea/hiccoughs (20% NR and 5% MSS), and bilateral optic neuritis/unilateral optic neuritis with poor visual recovery (17% NR and 10% MSS). Periventricular magnetic resonance imaging (MRI) lesions were correctly identified by 39% NR and 52% MSS, and juxtacortical lesions were correctly identified by 28% NR and 53% MSS. The correct definition of "periventricular" was chosen by 38% NR and 61% MSS, and that of "juxtacortical" was chosen by 19% NR and 54% MSS. Regions incorrectly identified for MRI dissemination in space fulfillment included the optic nerve (31% NR and 26% MSS) and the subcortical white matter (11% NR and 18% MSS). The majority of participants assessed previous non-specific neurological symptoms without objective evidence of a central nervous system (CNS) lesion as sufficient for clinical dissemination in time. CONCLUSION: The McDonald criteria are often misunderstood and misapplied. Concerted educational efforts may prevent MS misdiagnosis.
Entities:
Keywords:
McDonald criteria; Multiple sclerosis; all education; diagnosis; misdiagnosis
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