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Otolaryngol Head Neck Surg. 2008 Apr;138(4):513-7. doi: 10.1016/j.otohns.2007.12.015.

Enhanced hearing in heat-activated-crimping prosthesis stapedectomy.

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  • 1Louisiana State University, New Orleans, LA, USA.

Abstract

OBJECTIVES:

Compare short-term hearing outcomes with a heat-activated-crimping versus manual-crimping stapedectomy prosthesis.

STUDY DESIGN:

Retrospective chart review.

SETTING:

Tertiary care neurotology referral center.

PATIENTS:

219 charts reviewed.

INTERVENTION:

Laser stapedectomy.

MAIN OUTCOME MEASURES:

Audiometric.

METHODS:

Retrospective study comparing postoperative hearing in manual-crimp prostheses stapedectomies versus heat-activated-crimp prostheses stapedectomies.

RESULTS:

Of the 219 patients reviewed, 94 met inclusion criteria for the study, with 47 receiving manual-crimp prosthesis and 47 receiving heat-activated-crimp prosthesis. Short-term poststapedectomy air-bone gaps, long-term air-bone gaps, long-term pure-tone averages, and long-term air-bone gap closures were significantly better for heat-activated-crimp versus manual-crimp prostheses.

CONCLUSION:

Heat-activated-crimping prostheses demonstrated enhanced stapedectomy hearing outcomes versus manual-crimping prostheses on short- and long-term follow-up. Three-dimensional reorientation of the heat-activated prosthesis may enhance the hearing outcome; however, theoretical nickel allergy considerations, effects of case selection, follow-up duration, possible eventual loosening of the heat-activated crimp, and long-term incus necrosis are considerations requiring continued longitudinal analysis.

PMID:
18359364
[PubMed - indexed for MEDLINE]
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