Department of Otorhinolaryngology - Head and Neck Surgery, Osaka Rosai Hospital, Osaka, Japan.
J Laryngol Otol. 2024 Apr;138(4):405-409. doi: 10.1017/S0022215123001433. Epub 2023 Aug 30.
This study aimed to quantitatively investigate airborne particle load in the operating room during endoscopic or microscopic epitympanectomy or mastoidectomy.
In the transcanal endoscopic ear surgery group, drilling was performed underwater. A particle counter was used to measure the particle load before, during and after drilling during transcanal endoscopic ear surgery or microscopic ear surgery. The device counted the numbers of airborne particles of 0.3, 0.5 or 1.0 μm in diameter.
The particle load during drilling was significantly higher in the microscopic ear surgery group ( = 5) than in the transcanal endoscopic ear surgery group ( = 11) for all particle sizes ( 0.01). In the transcanal endoscopic ear surgery group, no significant differences among the particle load observed before, during and after drilling were seen for any of the particle sizes.
Bone dissection carries a lower risk of airborne infection if it is performed using the endoscopic underwater drilling technique.
本研究旨在定量研究内镜或显微镜下鼓室切开术或乳突切除术期间手术室内空气中的颗粒负荷。
在经耳道内镜耳部手术组中，水下进行钻孔。使用粒子计数器测量经耳道内镜耳部手术或显微镜耳部手术过程中钻孔前后空气中粒径为 0.3、0.5 或 1.0μm 的颗粒的负载量。
对于所有粒径（ = 5），显微镜耳部手术组（ = 11）的钻孔过程中的颗粒负荷明显高于经耳道内镜耳部手术组（ 0.01）。在经耳道内镜耳部手术组中，对于所有粒径，钻孔前后观察到的颗粒负荷之间没有显著差异。
如果使用内镜水下钻孔技术进行骨切开术，则发生空气传播感染的风险较低。
