This Article  • References  • Full text PDF  • Reply to article  • Send to a friend  • Save in My Folder  • Save to citation manager  • Permissions  Citing Articles  • Citation map  • Citing articles on HighWire  • Contact me when this article is cited  Related Content  • Similar articles in this journal  Social Bookmarking   What's this?

I. Summating Potential Amplitude in Meniere and Non-Meniere Ears

Alfred C. Coats, MD

Arch Otolaryngol. 1981;107(4):199-208.

Abstract
• We investigated the relationship between Meniere's disease and the abnormally enlarged summating potential (SP) in a series of patients and normal subjects. Cochlear and auditory nerve responses to rectangular-pulse clicks, delivered at a rate of 8/s and an intensity of 115 dB peak-equivalent sound pressure level, were recorded from ear canal skin. We performed a parabolic regression for SP amplitudes as a function of auditory nerve action potential (AP) amplitudes in normal ears and obtained the 95% confidence interval (±2 SD) for normal scatter around the fitted curve. Sixty-eight percent of SP amplitudes from ears with Meniere's disease exceeded the upper normal confidence limit. In contrast, only 7% of the cochlear ears and none of the retrocochlear ears had SP amplitudes above this normal upper limit. Cochlear microphonic potentials and APs from the ears with Meniere's disease also tended to be larger than normal, but this tendency was not strong enough to be of diagnostic use.

(Arch Otolaryngol 1981;107:199-208)

Author Affiliations
From the Departments of Otorhinolaryngology and Communicative Sciences and Neurology, Baylor College of Medicine, Houston.

Footnotes
Accepted for publication July 30, 1980.

Reprint requests to Institute of Otorhinolaryngology and Communicative Disorders, Neurosensory Center of Houston, 6501 Fannin St, Houston, TX 77030 (Dr Coats).

CiteULike    Connotea    Del.icio.us    Digg    Reddit    Technorati    Twitter     What's this?

THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES

Acute Low-Tone Sensorineural Hearing Loss Without Vertigo
Yamasoba et al.
Arch Otolaryngol Head Neck Surg 1994;120:532-535.
ABSTRACT  

Electrocochleographic Monitoring in Endolymphatic Sac Surgery for Meniere's Disease
Huang et al.
Arch Otolaryngol Head Neck Surg 1994;120:552-559.
ABSTRACT  

Electrocochleographic Recordings in Acute and Healed Perilymphatic Fistula
Campbell and Savage
Arch Otolaryngol Head Neck Surg 1992;118:301-304.
ABSTRACT  

Electrocochleography and Brain-Stem Potentials in Ramsay Hunt Syndrome
Abramovich and Prasher
Arch Otolaryngol Head Neck Surg 1986;112:925-928.
ABSTRACT  

Electrocochleography and Low-Frequency Harmonic Acceleration in Meniere's Disease
Shea and Orchik
Arch Otolaryngol Head Neck Surg 1986;112:929-933.
ABSTRACT  

The Normal Summating Potential Recorded From External Ear Canal
Coats
Arch Otolaryngol Head Neck Surg 1986;112:759-768.
ABSTRACT  

Electrocochleography and Symptoms of Inner Ear Dysfunction
Ferraro et al.
Arch Otolaryngol Head Neck Surg 1985;111:71-74.
ABSTRACT  

Electrocochleographic Study of Meniere's Disease
Kumagami et al.
Arch Otolaryngol Head Neck Surg 1982;108:284-288.
ABSTRACT  

Meniere's Disease and the Summating Potential: III. Effect of Glycerol Administration
Coats and Alford
Arch Otolaryngol Head Neck Surg 1981;107:469-473.
ABSTRACT