Wang Qian, Wu Hao, Zhang Yu
Orthopaedic Operating Room, The First Affiliated Hospital of the Air Force Medical University, Xi'an 710032, Shaanxi, China.
Noise Health. 2025;27(125):97-103. doi: 10.4103/nah.nah_3_25. Epub 2025 Apr 29.
Objective Orthopedic surgeries generate high noise levels that exceed recommended thresholds, thereby posing risks to surgical safety. Nurses play a critical role in instrument preparation and intraoperative monitoring. However, evidence of noise-induced cognitive impairment in this population remains limited. This study evaluated the effects of intraoperative noise exposure on nurses' reaction times and error rates during orthopedic procedures.
This retrospective study analyzed data from 200 orthopedic surgeries conducted in a tertiary hospital over 12 months. Noise levels in the operating rooms (ORs) were recorded using calibrated noise meters. Nurses' cognitive performance was assessed by measuring reaction time and error rate. Baseline demographic and clinical data, such as age, experience, gender, and surgery type, were included. Correlation analysis and multivariate regression were performed to assess the relationships among noise levels, reaction time, and error rates.
The average noise level in the ORs was 89.73 ± 11.52 dB (range: 60-120 dB). Noise levels showed significant positive correlations with reaction delays (r = 0.54, P < 0.01) and error rates (r = 0.68, P < 0.01). Nurses exposed to noise levels exceeding 100 dB had an average reaction time of 274.82 ± 45.80 ms, compared with 261.48 ± 47.63 ms in quieter environments. Error rates increased sharply beyond 100 dB, with a mean of 0.91% ± 0.05%, compared with 0.61% ± 0.04% at lower noise levels. Multivariate logistic regression analysis confirmed noise as an independent risk factor for delayed reaction time and increased error rate.
Noise exposure during orthopedic surgeries significantly affects nurses' information processing, increasing reaction times and error rates. Noise mitigation strategies are essential to enhance OR safety and nursing performance.
目的 骨科手术产生的噪音水平很高，超过了推荐阈值，从而对手术安全构成风险。护士在器械准备和术中监测中起着关键作用。然而，关于该人群中噪音引起的认知障碍的证据仍然有限。本研究评估了术中噪音暴露对骨科手术期间护士反应时间和错误率的影响。
这项回顾性研究分析了一家三级医院在12个月内进行的200例骨科手术的数据。使用校准的噪音计记录手术室（OR）中的噪音水平。通过测量反应时间和错误率来评估护士的认知表现。纳入了基线人口统计学和临床数据，如年龄、经验、性别和手术类型。进行相关性分析和多变量回归以评估噪音水平、反应时间和错误率之间的关系。
手术室的平均噪音水平为89.73±11.52分贝（范围：60 - 120分贝）。噪音水平与反应延迟（r = 0.54，P < 0.01）和错误率（r = 0.68，P < 0.01）呈显著正相关。暴露于超过100分贝噪音水平的护士平均反应时间为274.82±45.80毫秒，而在较安静环境中为261.48±47.63毫秒。错误率在超过100分贝时急剧增加，平均为0.91%±0.05%，而在较低噪音水平下为0.61%±0.04%。多变量逻辑回归分析证实噪音是反应时间延迟和错误率增加的独立危险因素。
骨科手术期间的噪音暴露显著影响护士的信息处理，增加反应时间和错误率。噪音缓解策略对于提高手术室安全性和护理表现至关重要。
