Study on the Rapid Diagnostic Value of Sudden Clap Provocation Test in Psychogenic Nonepileptic Seizures

Condition(s) studied

Investigational drug(s) / intervention(s)

Abrupt Clap Provocation Test: This intervention is the abrupt clap provocation diagnostic test, a behavioral stimulation diagnostic method unique to this trial. The operator delivers sudden, loud hand-clap stimuli at a fixed distance in a quiet environment, records the subjects' auditory sensitivity, physical reactions and behavioral manifestations in real time, and evaluates the response threshold to acoustic stimulation. No drugs, medical devices or other physical stimulation operations are involved in this intervention; it only relies on manual clapping to complete the provocation detection, which is different from drug intervention, imaging examination and other test means in this study.

Study summary

To explore the clinical value of the sudden clap provocation test in the differential diagnosis between epileptic seizures and psychogenic non-epileptic seizures, so as to provide a new strategy for rapid, low-cost differential diagnosis. This study is a prospective, single-center, diagnostic trial. This study is a single-center, prospective study that plans to recruit 400 patients who have "convulsive seizure" events during video electroencephalogram monitoring. A standardized sudden clap test is adopted, and one sudden clap test is performed during each clinically detected seizure episode, with the study period covering the entire VEEG monitoring process (approximately 24 hours). During the trial, the patient's basic treatment plan and VEEG monitoring process remain unchanged, and data analysis and diagnostic efficacy evaluation will be carried out after the VEEG monitoring is completed.

Eligibility

Primary outcome measure(s)

• Behavioral Recording — Immediately (within 10 seconds) after the clap stimulus during convulsive episodes recorded during the 24-hour video-EEG monitoring period
  The patient's facial expressions and body motor movements before and after the stimulus are synchronously recorded using the high-definition camera of the VEEG system.

Trial sites (3)

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