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McDonald criteria application by German neurologists suggests a need for further training
Johannes Heinemann1, Dimitar Yankov1, Andrew J Solomon2
1Department of Neurology, Medical Center, University of Freiburg, Faculty of Medicine, Breisacher Str. 64, 79106 Freiburg, Germany.
Background:
McDonald criteria (MC) are a globally accepted standard for the diagnosis of multiple sclerosis (MS). Misdiagnosis of MS is a common problem that has significant clinical consequences for patients. Misapplication of MC is a potential source of MS misdiagnosis. Recent research has identified elements of the criteria that are frequently misunderstood by neurologists in the US.
Aim:
To assess application of MC by German neurologists.
Methods:
A previously developed survey instrument was modified and distributed to neurology residents and specialists (general neurology, not MS-subspecialists).
Results:
68 neurologists (42 neurology residents (NR) and 26 neurology specialists (NS) completed the survey. We found frequent misapplication of MC. Symptoms atypical for MS were mistaken as typical by 31 % of participants. Understanding of MRI dissemination in space criteria was poor. Periventricular and juxtacortical lesions were incorrectly identified by 46 % and 55 %, respectively. Most participants accepted purely anamnestic reports of previous neurological symptoms without objective clinical evidence as sufficient to prove dissemination in time.
Conclusions:
Training and continuing education on MS diagnostic criteria needs to be improved, especially concurrent with dissemination of future iterations of MC.
Insights
German neurologists frequently misapply the McDonald criteria (MC) for diagnosing multiple sclerosis (MS). Poor understanding of MRI lesion dissemination and symptom interpretation highlights a need for improved training on these critical MS diagnostic standards.
Area of Science:
- Neurology
- Clinical Diagnostics
Background:
- The McDonald criteria (MC) are the global standard for diagnosing multiple sclerosis (MS).
- Misdiagnosis of MS is common and has serious clinical implications.
- Misapplication of MC may contribute to MS misdiagnosis, with prior studies noting misunderstandings among US neurologists.
Purpose of the Study:
- To evaluate the application of the McDonald criteria (MC) by German neurologists.
- To identify potential areas of misunderstanding in the diagnostic process for multiple sclerosis.
Main Methods:
- A modified survey instrument was used to assess MC application.
- The survey was distributed to neurology residents and specialists in Germany.
- Data were collected from 68 participants (42 residents, 26 specialists).
Main Results:
- Frequent misapplication of MC was observed among German neurologists.
- 31% of participants incorrectly identified atypical MS symptoms as typical.
- Understanding of MRI "dissemination in space" criteria was poor, with 46% misidentifying periventricular lesions and 55% misidentifying juxtacortical lesions.
- Most participants accepted subjective patient history alone to confirm "dissemination in time".
Conclusions:
- There is a clear need to enhance training and continuing education on MS diagnostic criteria.
- Improved education is crucial, especially with the ongoing development and release of new versions of the McDonald criteria.
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