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Prognostic scoring in necrotising otitis externa

Published online by Cambridge University Press:  09 July 2009

M O Eveleigh ,
C E J Hall  and
D L Baldwin
M O Eveleigh*
Affiliation:
Faculty of Medicine and Dentistry, University of Bristol, Bristol, United Kingdom
C E J Hall
Affiliation:
ENT Department, Southmead Hospital, North Bristol Hospitals NHS Trust, Bristol, United Kingdom
D L Baldwin
Affiliation:
ENT Department, Southmead Hospital, North Bristol Hospitals NHS Trust, Bristol, United Kingdom
*
Address for correspondence: Dr Mark Eveleigh, c/o Mr David Baldwin, ENT Department, Southmead Hospital, Westbury-on-Trym, Bristol BS10 5NB, UK. Fax: (+44) 1179 595850 E-mail: moeveleigh@doctors.org.uk
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Abstract

Objective:

To collect and analyse data from the published literature concerning the rare condition necrotising otitis externa, in order to formulate a prognostic scoring model based on signs and symptoms.

Design:

Retrospective data collection from published literature, and binary logistic regression analysis of the effect on outcome of identified signs and symptoms.

Results:

Six factors were identified as prognostic of a poorer outcome, including facial nerve involvement, additional cranial nerve involvement, non-cranial nerve neurological involvement, extensive granulations (or oedema) in the external auditory canal, bilateral symptoms and aspergillus species as the causative organism. A four-point scoring model based on these findings is presented.

Conclusions:

A novel, systematic method of data analysis was utilised to construct a prognostic scoring model for necrotising otitis externa. This will better equip clinicians to treat this potentially fatal condition.

Keywords

External OtitisPseudomonas AeruginosaDiabetes MellitusOsteomyelitisCranial Nerve DiseasesAspergillusHyperbaric Oxygenation
Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 123 , Issue 10 , October 2009 , pp. 1097 - 1102
Copyright
Copyright © JLO (1984) Limited 2009

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