耳蝸微觀解剖對人工耳蝸植入者聽力保存的影響

// Influence of Cochlear Microanatomy on Hearing Preservation in Cochlear Implant Recipients

回顧42例成人人工耳蝸，影像與混合模型分析低頻聽力｜ST（鼓階）體積與性別顯著預測術後低頻閾值（P=0.005、0.01），CDL、AID與局部截面不具預測力｜ST體積勝於局部電極幾何，暗示液壓（流體壓力瞬變）間接損傷可能主導，建議術中測壓驗證

// This retrospective study of 42 adult cochlear implant recipients used pre- and postoperative imaging and linear mixed-effects models to test whether scala tympani (ST) volume, cochlear duct length, cross-sectional measures, or angular insertion depth predict low-frequency hearing change. ST volume and biological sex significantly predicted postoperative low-frequency threshold shift (P = 0.005 and P = 0.01), while CDL, AID, and local ST cross-sectional measures did not; age showed a trend. The authors conclude overall ST volume more strongly affects hearing preservation than local electrode–tissue geometry, suggesting indirect trauma mechanisms (e.g., hydraulic pressure during insertion) may predominate. They recommend validating this by measuring intraoperative fluid pressure transients relative to ST volume.

Published 2026年9月9日