Psychogenic seizures: a clinical study with follow-up data

Area of Science:

• Neurology
• Psychiatry

Background:

• Psychogenic seizures, historically termed hysterical seizures, present diagnostic challenges.
• Understanding their natural history and long-term prognosis is crucial for patient care.

Purpose of the Study:

• To evaluate the long-term prognosis and natural history of psychogenic seizures.
• To identify coexisting conditions and factors contributing to morbidity in these patients.

Main Methods:

• Retrospective analysis of 41 patients diagnosed with psychogenic seizures.
• Follow-up data collected 5 or more years post-discharge from Johns Hopkins Hospital (1971-1974).
• Assessment of coexisting organic neurologic disorders, mental subnormality, epileptic seizures, and EEG findings.

Main Results:

• 44% of patients had coexisting organic neurologic disorders.
• 17% had mental subnormality, and 37% experienced true epileptic seizures.
• EEG abnormalities were linked to organic disorders or drug toxicity, not psychogenic seizures themselves.
• 56% experienced significant long-term morbidity, primarily due to psychosocial issues.

Conclusions:

• Psychogenic seizures frequently coexist with other neurological conditions.
• Long-term morbidity is significantly influenced by psychosocial factors, underscoring the need for integrated care.
• Misdiagnosis was not the primary driver of long-term morbidity in this cohort.