PMID- 30395303 OWN - NLM STAT- MEDLINE DCOM- 20200413 LR - 20200413 IS - 1524-4040 (Electronic) IS - 0148-396X (Linking) VI - 85 IP - 6 DP - 2019 Dec 1 TI - Defining the Minimal Clinically Important Difference for Patients With Vestibular Schwannoma: Are all Quality-of-Life Scores Significant? PG - 779-785 LID - 10.1093/neuros/nyy467 [doi] AB - BACKGROUND: The diagnosis of vestibular schwannomas (VS) is associated with reduced patient quality of life (QOL). Minimal clinically important difference (MCID) was introduced as the lowest improvement in a patient-reported outcome (PRO) score discerned as significant by the patient. We formerly presented an MCID for the Penn Acoustic Neuroma QOL (PANQOL) battery based on cross-sectional data from 2 tertiary referral centers. OBJECTIVE: To validate the PANQOL MCID values using prospective data. METHODS: A prospective registry capturing QOL was queried, comprising patients treated at the authors' institution and Acoustic Neuroma Association members. Anchor- and distribution-based techniques were utilized to determine the MCID for domain and total scores. We only included anchors with Spearman's correlation coefficient larger than 0.3 in the MCID threshold calculations. Most domains had multiple anchors with which to estimate the MCID. RESULTS: A total of 1254 patients (mean age: 57.4 yr, 65% females) were analyzed. Anchor-based methods produced a span of MCID values (median, 25th-75th percentile) for each PANQOL domain and the total score: hearing (13.1, 13-16 points), balance (14, 14-19 points), pain (21, 20-28 points), face (25, 16-36 points), energy (16, 15-18 points), anxiety (16 [1 estimate]), general (13 [1 estimate]), and total (12.5, 10-15 points). CONCLUSION: Current findings corroborate our formerly shared experience using multi-institutional, cross-sectional information. These MCID thresholds can serve as a pertinent outcome when deciphering the clinical magnitude of VS QOL endpoints in cross-sectional and longitudinal studies. CI - Copyright (c) 2018 by the Congress of Neurological Surgeons. FAU - Kerezoudis, Panagiotis AU - Kerezoudis P AD - Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota. FAU - Yost, Kathleen J AU - Yost KJ AD - Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota. FAU - Tombers, Nicole M AU - Tombers NM AD - Department of Otolaryngology-Head and Neck Surgery, Mayo Clinic, Rochester, Minnesota. FAU - Celda, Maria Peris AU - Celda MP AD - Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota. FAU - Carlson, Matthew L AU - Carlson ML AD - Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota. AD - Department of Otolaryngology-Head and Neck Surgery, Mayo Clinic, Rochester, Minnesota. FAU - Link, Michael J AU - Link MJ AD - Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota. AD - Department of Otolaryngology-Head and Neck Surgery, Mayo Clinic, Rochester, Minnesota. LA - eng PT - Journal Article PL - United States TA - Neurosurgery JT - Neurosurgery JID - 7802914 SB - IM MH - Adult MH - Aged MH - Cohort Studies MH - Cross-Sectional Studies MH - Female MH - Follow-Up Studies MH - Humans MH - Male MH - Middle Aged MH - *Minimal Clinically Important Difference MH - Neuroma, Acoustic/*diagnosis/*psychology/therapy MH - Prospective Studies MH - Quality of Life/*psychology MH - Registries MH - Treatment Outcome OTO - NOTNLM OT - Acoustic neuroma OT - Microsurgery OT - Minimal clinically important difference OT - Observation OT - Patient-reported outcome measures OT - Quality of life OT - Vestibular schwannoma EDAT- 2018/11/06 06:00 MHDA- 2020/04/14 06:00 CRDT- 2018/11/06 06:00 PHST- 2018/04/07 00:00 [received] PHST- 2018/08/31 00:00 [accepted] PHST- 2018/11/06 06:00 [pubmed] PHST- 2020/04/14 06:00 [medline] PHST- 2018/11/06 06:00 [entrez] AID - 5160937 [pii] AID - 10.1093/neuros/nyy467 [doi] PST - ppublish SO - Neurosurgery. 2019 Dec 1;85(6):779-785. doi: 10.1093/neuros/nyy467.