EVIDENCE LIBRARY

Stiff-Person Case Showed Why Diazepam Treatment Did Not Resolve the Diagnostic Question

Symptoms resembling anxiety can coexist with a neurological disorder requiring another explanation.

Symptoms resembling anxiety can coexist with a neurological disorder requiring another explanation.

What the supplied source reports

The case described a woman with repeated anxiety-related presentations, rigidity and walking difficulty. Diazepam was used when stiff-person syndrome was considered, and positive GAD antibodies supported the diagnosis. Symptoms became refractory to benzodiazepines, and later treatment included immunotherapy and plasma exchange.

Limits of the evidence

One case cannot define the diagnostic accuracy of a diazepam response or establish how often anxiety presentations represent stiff-person syndrome. Multiple treatments were used. Failure of symptom control also does not prove that the earlier medicine had no pharmacological effect.

Implications for expert analysis

For an expert chronology, distinguish the reason for prescribing a benzodiazepine from the final diagnosis. A medication list alone cannot establish that symptoms were psychiatric. Clinical examination, progression and disease-specific evidence are essential when interpreting what sedation or partial relief actually showed.

Source and related reading

Source: Publication PMC5584351, read from the supplied PDF. Applications to expert analysis are interpretation.

Related reading: Stiff-Person Case Shows Why Poor Lorazepam Response Does Not Exclude Neurological Disease.