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Behavioral Characterization of Pentylenetetrazole-induced Seizures: Moving Beyond the Racine Scale

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Psychogenic propriospinal myoclonus.

David R Williams¹, Max Cowey, Kate Tuck

¹Faculty of Medicine-Neurosciences, Monash University, Alfred Hospital Campus, Melbourne, Australia. david.williams@med.monash.edu.au

Movement Disorders : Official Journal of the Movement Disorder Society

|April 17, 2008

Summary

This summary is machine-generated.

This case study describes probable psychogenic propriospinal myoclonus (PSM) in a patient experiencing sudden, severe jerking after cosmetic surgery. The condition resolved after removing surgical screws, supporting a psychogenic origin.

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Area of Science:

Neurology
Psychiatry
Movement Disorders

Background:

Psychogenic propriospinal myoclonus (PSM) is a rare disorder characterized by axial myoclonus.
The etiology and diagnostic criteria for PSM remain areas of ongoing research.

Observation:

A patient presented with sudden-onset, disabling axial flexor myoclonus following a cosmetic surgical procedure.
Electrophysiological findings were consistent with previously documented PSM cases.

Findings:

The patient experienced spontaneous remission of myoclonus after the removal of superficial surgical screws.
The sustained disappearance of jerks for 2 years post-removal supports a psychogenic etiology.

Implications:

This case highlights the potential link between surgical procedures and the onset of psychogenic movement disorders.
It underscores the importance of considering psychogenic etiologies in unexplained myoclonus, even after invasive procedures.
Successful treatment through removal of a potential trigger supports a psychogenic diagnosis.