Exploring core symptoms and symptom clusters among patients with neuromyelitis optica spectrum disorder: A network analysis.
Hao Liang, Jiehan Chen, Lixin Wang and 4 others
PMID 40241870WHAT IT FOUND
In adults with neuromyelitis optica spectrum disorder, pain was the most common and burdensome symptom.
Fatigue appeared most tied to other symptoms, and motor symptoms were the most connected cluster. This can help clinicians prioritise symptom assessment and management.
Key findings
01Pain was the most common symptom (92 patients, 65.7%) and had the highest median burden score (1.67).
02Fatigue was the most central symptom and the most prominent bridge symptom in the symptom network.
03The motor symptom cluster was the most central of the six symptom clusters identified.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTsWhat it means for RNs
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What it does not show
Online convenience sampling from a WeChat group linked to one hospital may have selected participants who were younger, more digitally available, or able to complete an online questionnaire. Voluntary online participation may have excluded patients with more severe symptoms or less access, so the sample may not represent all adults with NMOSD. Participants were from China, and the symptom scale was self-made because no NMOSD-specific symptom scale existed, so its validity needs more testing. Family members could complete the questionnaire for patients unable to do so, which may affect how symptoms are reported. The final valid sample of 140 approached the target sample size of 145, but the authors note this small sample may create statistical uncertainty. Because the study was cross-sectional, it cannot show which symptoms cause other symptoms or whether treating one symptom will change the others.
Declared interests
This work was supported by the Specific Research Fund for Top-notch Talents of Guangdong Provincial Hospital of Chinese Medicine (No. 2022KT1188). The authors declared no competing interests.
The easy way to misread this
Do not read the network findings as proof that treating fatigue or motor symptoms will reduce all other symptoms. This was a cross-sectional survey of 140 patients using a self-made scale, so it describes associations among reported symptoms, not effects of any treatment.