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Outcomes of canalplasty for chronic obliterative otitis externa

Published online by Cambridge University Press:  15 August 2012

C P S Potter*
Affiliation:
ENT Department, John Radcliffe Hospital, Oxford, UK
I D Bottrill
Affiliation:
ENT Department, John Radcliffe Hospital, Oxford, UK
*
Address for correspondence: Mr C P S Potter, ENT Department, Torbay Hospital, Torquay TQ2 7AA, UK Fax: +44 (0)1803 655011 E-mail: Christian.potter@nhs.net

Abstract

Introduction:

Chronic obliterative otitis externa is a rare cause of conductive hearing loss, characterised by stenosis of the deep ear canal secondary to chronic inflammation. A multitude of canalplasty techniques have been described, with variable success.

Method:

Fourteen patients undergoing canalplasty performed by the senior author for refractory obliterative otitis externa, over an 8-year period, were included in the study. All underwent split-skin grafting of the denuded canal and meticulous post-operative aural care. Outcome measures included the Glasgow Benefit Inventory and pure tone audiology.

Results:

At 3 months post-operatively, the four-tone average threshold had improved by a mean of 13.9 dB (95 per cent confidence interval –9.9 to 37.8 dB; t < 0.001) in the operated ear. The mean Glasgow Benefit Inventory score was 20 (95 per cent confidence interval −2.3 to 42.1).

Conclusion:

Significant improvements in both hearing and quality of life are achievable in patients with end-stage obliterative otitis externa treated surgically. Highly trained and competent aural care practitioners are a prerequisite for the success of the procedure, and a substantial number of patients must be prepared to submit to long-term follow-up care.

Type
Main Articles
Copyright
Copyright © JLO (1984) Limited 2012

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References

1Becker, BC, Tos, M. Postinflammatory acquired atresia of the external auditory canal: treatment and results of surgery over 27 years. Laryngoscope 1998;108:903–7CrossRefGoogle ScholarPubMed
2Roland, PS. Chronic external otitis. Ear Nose Throat J 2001;80:1216Google ScholarPubMed
3Selesnick, S, Nguyen, TP, Eisenman, DJ. Surgical treatment of acquired external auditory canal atresia. Am J Otol 1998;19:123–30Google ScholarPubMed
4Robinson, K, Gatehouse, S, Browning, GG. Measuring patient benefit from otorhinolaryngological surgery and therapy. Ann Otol Rhinol Laryngol 1996;105:415–22CrossRefGoogle ScholarPubMed
5Herdman, RC, Wright, JL. Surgical treatment of obliterative otitis externa. Clin Otolaryngol Allied Sci 1990;15:1114CrossRefGoogle ScholarPubMed
6Jacobsen, N, Mills, R. Management of stenosis and acquired atresia of the external auditory meatus. J Laryngol Otol 2006;120:266–71CrossRefGoogle ScholarPubMed
7Katzke, D, Pohl, DV. Postinflammatory medial meatal fibrosis. A neglected entity? Arch Otolaryngol 1982;108:779–80CrossRefGoogle ScholarPubMed
8el-Sayed, Y. Acquired medial canal fibrosis. J Laryngol Otol 1998;112:145–9CrossRefGoogle ScholarPubMed
9Bonding, P, Tos, M. Postinflammatory acquired atresia of the external auditory canal. Acta Otolaryngol 1975;79:115–23CrossRefGoogle ScholarPubMed
10McKennan, KX, Chole, RA. Traumatic external auditory canal atresia. Am J Otol 1992;13:80–1Google ScholarPubMed
11McDonald, TJ, Facer, GW, Clark, JL. Surgical treatment of stenosis of the external auditory canal. Laryngoscope 1986;96:830–3CrossRefGoogle ScholarPubMed
12McCary, WS, Kryzer, TC, Lambert, PR. Application of split-thickness skin grafts for acquired diseases of the external auditory canal. Am J Otol 1995;16:801–5Google ScholarPubMed
13Carls, JL, Mendenhall, WM, Morris, CG, Antonelli, PJ. External auditory canal stenosis after radiation therapy. Laryngoscope 2002;112:1975–8CrossRefGoogle ScholarPubMed
14Work, WP. Lesions of the external auditory canal. Ann Otol Rhinol Laryngol 1950;59:1062–87CrossRefGoogle ScholarPubMed
15Paparella, MM, Kurkjian, JM. Surgical treatment for chronic stenosing external otitis. (Including finding of unusual canal tumor). Laryngoscope 1966;76:232–45CrossRefGoogle ScholarPubMed
16Tos, M, Bonding, P. Treatment of postinflammatory acquired atresia of the external auditory canal. ORL J Otorhinolaryngol Relat Spec 1979;41:8590CrossRefGoogle ScholarPubMed
17Cremers, CW. Surgery for acquired atresia of the external ear canal. Clin Otolaryngol Allied Sci 2002;27:75–6CrossRefGoogle ScholarPubMed
18Birman, CS, Fagan, PA. Medial canal stenosis – chronic stenosing external otitis. Am J Otol 1996;17:26Google ScholarPubMed
19Parisier, SC, Bent, JP 3rd. Canalplasty. Otolaryngol Clin North Am 1999;32:457–69CrossRefGoogle ScholarPubMed
20Soliman, T, Fatt-Hi, A, Abdel Kadir, M. A simplified technique for the management of acquired stenosis of the external auditory canal. J Laryngol Otol 1980;94:549–52CrossRefGoogle ScholarPubMed
21Dhooge, IJ, Vermeersch, HF. The use of two pedicled skin flaps in the surgical treatment of acquired atresia of the outer ear canal. Clin Otolaryngol Allied Sci 1999;24:5860CrossRefGoogle ScholarPubMed
22Adkins, WY, Osguthorpe, JD. Management of canal stenosis with a transposition flap. Laryngoscope 1981;91:1267–9CrossRefGoogle ScholarPubMed
23Wolfensberger, M, Hilger, PA, Hilger, JA. Conchal bowl and postauricular flaps for reconstruction of the external auditory canal. Otolaryngol Head Neck Surg 1983;91:404–6CrossRefGoogle ScholarPubMed
24Chang, SO, Min, YG, Kim, CS, Koh, TY. Surgical management of congenital aural atresia. Laryngoscope 1994;104:606–11CrossRefGoogle ScholarPubMed
25Bell, DR. External auditory canal stenosis and atresia: dual flap surgery. J Otolaryngol 1988;17:1921Google ScholarPubMed
26Martin-Hirsch, DP, Smelt, GJ. Conchal flap meatoplasty. J Laryngol Otol 1993;107:1029–31CrossRefGoogle ScholarPubMed
27Banerjee, AR, Moir, AA, Jervis, P, Narula, AA. A canalplasty technique for the surgical treatment of chronic otitis externa. Clin Otolaryngol Allied Sci 1995;20:150–2CrossRefGoogle ScholarPubMed
28Lavy, J, Fagan, P. Canalplasty: review of 100 cases. J Laryngol Otol 2001;115:270–3CrossRefGoogle ScholarPubMed
29Sharp, HR, Oakley, RJ, Padgham, ND. The Canterbury technique for canalplasty via an endaural approach in the surgical management of chronic refractory otitis externa. J Laryngol Otol 2003;117:195–7CrossRefGoogle ScholarPubMed
30Leek, JH. Plastic surgery of the external auditory canal. Treatment of stenosis resulting from inflammation. Arch Otolaryngol 1967;85:367–70CrossRefGoogle ScholarPubMed
31Proud, GO. Surgery for chronic, refractory otitis externa. Arch Otolaryngol 1966;83:436–8CrossRefGoogle ScholarPubMed
32Spector, GJ, Sobol, S, Thawley, SE. Split thickness skin grafting in canaloplasty for acquired ear atresia. Laryngoscope 1979;89:674–6CrossRefGoogle ScholarPubMed
33Moore, GF, Moore, IJ, Yonkers, AJ, Nissen, AJ. Use of full thickness skin grafts in canalplasty. Laryngoscope 1984;94:1117–18CrossRefGoogle ScholarPubMed
34Cremers, WR, Smeets, JH. Acquired atresia of the external auditory canal. Surgical treatment and results. Arch Otolaryngol Head Neck Surg 1993;119:162–4CrossRefGoogle ScholarPubMed
35Tos, M, Balle, V. Postinflammatory acquired atresia of the external auditory canal: late results of surgery. Am J Otol 1986;7:365–70Google ScholarPubMed
36Slattery, WH 3rd, Saadat, P. Postinflammatory medial canal fibrosis. Am J Otol 1997;18:294–7Google ScholarPubMed