Summating potential & summating potential/action potential ratio in the diagnosis of Meniere’s disease

  • B. Jaimanti Bakshi
  • A. K. Gupta
  • S. B. S. Mann


This study assesses electrocochleographic (ECOG) potentials in a clinically defined Meniere’s group and compares the results with those from a normal control group. Electrocochleography was done in 42 cases of Meniere’s disease and was compared with 20 normal cases. All parameters of electrocochleography were studied with special emphasis on the summating potential/action potential (SP/AP) ratio. A SP/AP amplitude ratio of 0.49 was found in the Meniere’ group as compared to the SP/AP ratio of 0.03 in the control group. Latencies of SP and AP were also studied and compared between two groups.


Hearing Loss External Auditory Canal Tone Burst Endolymphatic Hydrops Speech Discrimination Score 
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Copyright information

© Association of Otolaryngologists of India 2001

Authors and Affiliations

  • B. Jaimanti Bakshi
    • 1
  • A. K. Gupta
    • 1
  • S. B. S. Mann
    • 1
  1. 1.Deptt. of Otolaryngology and Head & Neck SurgeryPostgraduate Insitute of Medical Education & ResearchChandigarhIndia

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