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监测散发性前庭神经鞘瘤患者的听力功能:一项为未来随机对照试验提供信息的可行性研究

Monitoring Hearing Function in Patients With Sporadic Vestibular Schwannoma: A Feasibility Study to Inform a Future Randomized Controlled Trial.

临床研究耳科IF 1.9Q2

文献信息

中文摘要

目的: 需要一项确定性随机对照试验(RCT),比较前期立体定向放射外科(SRS)与观察等待(WW)在前庭神经鞘瘤(VS)长期听力保留方面的效果。本可行性研究的具体目标为:(1)评估患者资格及招募/保留率,(2)确定完成率/完成时间,(3)估计关键拟议结局指标的方差,以为RCT的样本量估算提供信息。
研究设计: 非随机、单中心、前瞻性研究。
地点: 三级转诊中心。
患者: 31例接受WW(n = 22)或SRS(n = 9)的散发性VS患者。
干预: 四频率平均纯音听阈(4FAPTA)、言语识别评分(WRS)、单耳/反相数字噪声言语接受阈(DiN SRT50),以及自我报告的结局指标,包括言语、空间和听觉质量量表(SSQ)与耳鸣功能指数(TFI)。
主要结局指标: 可行性指标(招募率、完成率、测试时间)。结局指标的方差(听力相关:4FAPTA、单耳/反相DiN-SRT50、WRS。患者报告结局:SSQ、TFI)。
结果: 7个月内招募了44例患者。31例(70.5%)符合纳入标准,25例(80%)完成了所有测试。完成评估的平均时间为1小时42分钟。VS患耳的平均4FAPTA(±SD)为42 ± 14 dB HL(WW)和55 ± 9.4 dB HL(SRS)。反相DiN-SRT50阈值分别为WW:-14.2 dB SNR ± 4.1;SRS:-11.6 dB SNR ± 1.9,并且在VS患耳中4FAPTA与反相DiN-SRT50相关(P < 0.001)。
结论: 本研究表明,拟议RCT具有足够的资格率及招募/保留率,并且测试完成率高、测试时长可接受。还提供了关键结局指标(DiN-SRT50、4FAPTA)的变异性估计,以确定RCT的样本量。

英文摘要

OBJECTIVE: There is a need for a definitive RCT comparing upfront stereotactic radiosurgery (SRS) versus watch-and-wait (WW) for long-term hearing preservation in vestibular schwannoma (VS). Specific objectives of this feasibility study were to: (1) assess patient eligibility and recruitment/ retention rates, (2) determine completion rates/ times, and (3) estimate the variance in key proposed outcome measures to inform sample-size estimation for an RCT.
STUDY DESIGN: Nonrandomized, single-centre, prospective study.
SETTING: Tertiary-referral centre.
PATIENTS: Thirty-one patients with sporadic VS undergoing WW (n = 22) or SRS (n = 9).
INTERVENTIONS: Four-frequency average pure-tone audiometry (4FAPTA) thresholds, Word Recognition Scores (WRS), monaural/antiphasic Digits-in-Noise speech reception thresholds (DiN SRT50), and self-reported outcomes including the Speech, Spatial and Qualities of Hearing Scale (SSQ) and Tinnitus Functional Index (TFI).
MAIN OUTCOME MEASURES: Feasibility metrics (recruitment, completion rates, testing times). Variance of outcome measures (hearing-related: 4FAPTA, monoaural/ antiphasic DiN-SRT50, WRS. Patient-reported outcomes: SSQ, TFI.
RESULTS: Forty-four patients were recruited over 7 months. Thirty-one (70.5%) met inclusion criteria, and 25 (80%) completed all tests. Average time to complete the assessments was 1 hour 42 minutes. Mean 4FAPTA (±SD) in VS-affected ears was 42 ± 14 dB HL (WW) and 55 ± 9.4 dB HL (SRS). Antiphasic DiN-SRT50 thresholds were WW: -14.2 dB SNR ± 4.1; SRS: -11.6 dB SNR ± 1.9, and 4FAPTA and antiphasic DiN-SRT50 were correlated (P < 0.001) in VS-affected ears.
CONCLUSIONS: This study has demonstrated sufficient eligibility and recruitment/retention rates for the proposed RCT and high-test completion rates with acceptable duration. Variability estimates of key outcome measures (DiN-SRT50, 4FAPTA) have also been provided to determine the sample size for the RCT.