对于存在潜在颈椎损伤的患者，球囊喉镜检查可减少头部伸展和喉镜叶片的杠杆作用。
Balloon laryngoscopy reduces head extension and blade leverage in patients with potential cervical spine injury.
作者信息
Mentzelopoulos S D, Tsitsika M V, Balanika M P, Joufi M J, Karamichali E A
机构信息
Department of Anesthesiology, Evangelismos General Hospital, Athens, Greece.
出版信息
Crit Care. 2000;4(1):40-4. doi: 10.1186/cc648. Epub 2000 Jan 24.
BACKGROUND
Head extension and excessive laryngoscope blade levering motion (LBLM) are undesirable during airway management of trauma patients. We hypothesized that laryngoscopy with a modified blade facilitating glottic exposure by balloon inflation would reduce head extension and LBLM.
PATIENTS AND METHODS
Seventeen elective surgery patients were enrolled. Patients lay supine with their heads flat on a rigid board and had a rigid collar around their necks. Laryngoscopy was performed with the modified blade and a standard curved blade. Head extension and LBLM angles were determined upon maximal glottic exposure and compared used paired t-tests. Laryngoscopic view grade and oxygen saturation were also determined.
RESULTS
Balloon laryngoscopy resulted in less head extension and LBLM (P <0.001). Laryngoscopic view was approximately identical with both blades, and oxygen saturation was always above 97%.
CONCLUSIONS
Balloon laryngoscopy reduces head extension and LBLM under simulated cervical spine precautions.
背景
在创伤患者气道管理过程中，头部后仰和喉镜叶片过度杠杆撬动动作（LBLM）是不理想的。我们假设使用通过球囊充气促进声门暴露的改良叶片进行喉镜检查将减少头部后仰和LBLM。
患者与方法
纳入17例择期手术患者。患者仰卧，头部平放在硬板上，颈部佩戴硬质颈托。使用改良叶片和标准弯叶片进行喉镜检查。在声门最大暴露时确定头部后仰和LBLM角度，并使用配对t检验进行比较。还确定了喉镜视野分级和氧饱和度。
结果
球囊喉镜检查导致头部后仰和LBLM减少（P<0.001）。两种叶片的喉镜视野大致相同，氧饱和度始终高于97%。
结论
在模拟颈椎预防措施下，球囊喉镜检查可减少头部后仰和LBLM。
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