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[Development and validation of the Stapesplasty Outcome Test 25 (SPOT-25)].

S Lailach1, T Schenke2, I Baumann3

  • 1Klinik und Poliklinik für Hals‑, Nasen‑, Ohrenheilkunde, Kopf-Hals-Chirurgie, Universitätsklinikum Dresden, Fetscherstraße 74, 01307, Dresden, Deutschland. Susen.Lailach@uniklinikum-dresden.de.

HNO
|July 19, 2017
PubMed
Summary

A new questionnaire, the SPOT-25, is the first validated tool to measure health-related quality of life (HRQOL) in otosclerosis patients. This instrument offers a reliable way to assess HRQOL and guide treatment decisions.

Keywords:
Health-related quality of lifeOtosclerosisOutcome analysisPatient-reported OutcomesQuestionnaire

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Area of Science:

  • Otolaryngology
  • Health-related quality of life research
  • Medical instrument validation

Background:

  • Otosclerosis significantly impacts patients' health-related quality of life (HRQOL).
  • Previous HRQOL assessments in otosclerosis relied on audiometric data or unvalidated questionnaires.
  • A need exists for a specific, validated HRQOL instrument for otosclerosis.

Purpose of the Study:

  • To develop and validate the first disease-specific instrument for measuring HRQOL in otosclerosis.
  • To create a tool that assesses multiple dimensions of HRQOL relevant to otosclerosis patients.

Main Methods:

  • The Stapesplasty Outcome Test 47 (SPOT-47) underwent sequential analysis and item reduction to create the SPOT-25.
  • Prospective validation of the SPOT-25 was conducted on 52 otosclerosis patients undergoing stapes surgery.
  • The SPOT-25 includes an overall score and four subscores: hearing function, tinnitus, social restrictions, and mental condition.

Main Results:

  • The SPOT-25 demonstrated high internal consistency (Cronbach's α > 0.7) and acceptable test-retest reliability (r = 0.85).
  • The instrument effectively discriminated between otosclerosis patients and healthy individuals.
  • Significant improvements in HRQOL were observed post-stapes surgery, indicating high responsiveness.

Conclusions:

  • The SPOT-25 is the inaugural validated, disease-specific instrument for measuring HRQOL in otosclerosis.
  • Routine utilization of the SPOT-25 is recommended for quality control in otosclerosis patient care.