<b>Somatic symptom disorder in patients with post-COVID-19 neurological symptoms: a preliminary report from the somatic study (Somatic Symptom Disorder Triggered by COVID-19</b>).

Evidence Atlas

Somatic symptom disorder in patients with post-COVID-19 neurological symptoms: a preliminary report from the somatic study (Somatic Symptom Disorder Triggered by COVID-19).

Kachaner, Alexandra, Lemogne, Cédric, Dave, Julie et al. · Journal of neurology, neurosurgery, and psychiatry · 2022 · DOI

Quick Summary

This study examined whether patients with long-lasting neurological symptoms after COVID-19 meet diagnostic criteria for somatic symptom disorder (SSD), a condition where psychological distress can amplify physical symptoms. Researchers evaluated 50 patients and found that about two-thirds met SSD criteria, though brain imaging and standard neurological tests were mostly normal. Most patients also had fatigue meeting chronic fatigue syndrome criteria, sleep problems, and significant work loss.

Why It Matters

This research highlights the complex interplay between post-viral neurological symptoms and psychological factors in long COVID patients, many of whom overlap with ME/CFS populations. Understanding how SSD criteria apply to post-COVID neurological illness may improve diagnostic accuracy and help guide appropriate, multi-disciplinary clinical management. The findings underscore that psychological factors can coexist with organic pathology and do not negate the reality of patients' suffering or functional impairment.

Observed Findings

64% of 50 patients met DSM-5 criteria for somatic symptom disorder; 90% met chronic fatigue syndrome criteria
67% reported insomnia; 50% experienced work or pay loss; 56% required psychiatric follow-up
28% screened positive for post-traumatic stress disorder; 38% had prior history of SSD
Neuropsychological testing revealed only mild attention impairment in 14/15 tested patients, inconsistent with patients' reported severity
Brain MRI showed minor, non-specific white matter hyperintensities in only 8/46 patients; all physical examinations were normal

Inferred Conclusions

A majority of patients with unexplained long-lasting neurological symptoms after mild COVID meet DSM-5 criteria for somatic symptom disorder and may benefit from targeted psychological and psychiatric management.
The disconnect between objective neuropsychological findings and subjective symptom severity suggests a role for psychological and psychosomatic mechanisms in symptom perpetuation.
High comorbidity with chronic fatigue syndrome, mood-anxiety disorders, and trauma history indicates the need for integrated, multi-disciplinary clinical approaches.

Remaining Questions

Does SSD diagnosis represent a primary mechanism of post-COVID symptoms, or does it reflect a secondary psychological response to chronic organic illness?

What This Study Does Not Prove

This study does not prove that somatic symptom disorder is the primary cause of long COVID neurological symptoms, only that some patients meet diagnostic criteria for it. The cross-sectional design cannot establish causality or temporal relationships, and the high prevalence of prior trauma and psychiatric history does not determine whether these preceded or resulted from COVID-19 infection. The absence of structural brain abnormalities on MRI does not exclude functional or metabolic brain pathology.

Metadata

DOI: 10.1136/jnnp-2021-327899
PMID: 36008115
Review status: Machine draft
Evidence level: Single-study or moderate support from human research
Last updated: 8 April 2026

About the PEM badge: “PEM required” means post-exertional malaise was an explicit required diagnostic criterion for participant inclusion in this study — not that PEM was studied, observed, or discussed. Studies using criteria that do not require PEM (e.g. Fukuda, Oxford) are tagged “PEM not required”. How the atlas works →

Spotted an error in this entry? Report it →