[Computer analysis of electronystagmograms. First report: the normal pendular test ENG (author's transl)]

Area of Science:

• Otolaryngology
• Neuroscience
• Ophthalmology

Context:

• Electronystagmography (ENG) interpretation lacks standardization.
• Pendular test nystagmograms are crucial for vestibular and oculomotor function assessment.
• Age significantly influences nystagmus characteristics.

Purpose:

• To statistically evaluate computerized analysis of pendular test nystagmograms.
• To establish age-adjusted normal ranges for nystagmus parameters.
• To identify the most reliable parameter for diagnostic estimation in ENG.

Summary:

• Computerized analysis of pendular test nystagmograms was performed.
• All nystagmus components demonstrated a strong dependence on age.
• The cumulogram of the nystagmus slow phase exhibited the least deviation, proving suitable for diagnostic use.

Impact:

• Provides a standardized method for interpreting electronystagmograms.
• Establishes age-specific normal values for nystagmus analysis.
• The nystagmus slow phase cumulogram offers valuable insights into duration, amplitude, and symmetry for clinical diagnosis.