Kokulu Kamil, Alkan Ender, Sert Ekrem T, Mutlu Hüseyin, Turkucu Cagri, Akar Emin H
Department of Emergency Medicine, Aksaray Training and Research Hospital, Aksaray, Turkey.
Department of Emergency Medicine, Aksaray University School of Medicine, Aksaray, Turkey.
Laryngoscope. 2024 Apr;134(4):1825-1830. doi: 10.1002/lary.31102. Epub 2023 Oct 10.
The primary aim of this study was to determine the average cricothyroid membrane (CTM) height in healthy volunteers, and the secondary aim was to determine the hypothetical success rate for emergency cricothyrotomy with a tracheal tube with an 8.0 mm outer diameter.
This study included healthy volunteers aged 18 years and older. The participants' clinical characteristics were recorded, and their CTM height was measured using ultrasound, with their necks placed sequentially in the neutral and extension positions. The relationship between the CTM height and sex, age, height, weight, body mass index, and sternomental distance was evaluated using linear regression analysis. An equation that could estimate the height of the CTM was obtained with the parameters found significant in this analysis.
Of the 340 participants, 208 (61.2%) were male. The mean (SD) height of the CTM in the extension position was 9.60 (1.54) mm, and it was significantly shorter in the women than in the men (8.72 [1.19] mm vs. 10.16 [1.48] mm, p < 0.001). Among the participants of short stature, the CTM was significantly shorter, regardless of sex. The hypothetical success rate for emergency cricothyrotomy was 93.3% for the males and 73.5% for the females. The equation for estimating the height of the CTM in the extension position was determined as -4.36 + 5.27 × height (m) + 0.32 × sternomental distance (cm).
Since the CTM height may differ according to age, sex, and height, cricothyrotomy sets should be available in various outer diameters.
NA Laryngoscope, 134:1825-1830, 2024.
本研究的主要目的是确定健康志愿者的平均环甲膜（CTM）高度，次要目的是确定使用外径8.0毫米气管导管进行紧急环甲膜切开术的假设成功率。
本研究纳入了18岁及以上的健康志愿者。记录参与者的临床特征，并使用超声测量其CTM高度，颈部依次置于中立位和伸展位。使用线性回归分析评估CTM高度与性别、年龄、身高、体重、体重指数和颏胸距离之间的关系。通过该分析中发现的显著参数获得了一个可以估计CTM高度的方程。
340名参与者中，208名（61.2%）为男性。伸展位时CTM的平均（标准差）高度为9.60（1.54）毫米，女性明显短于男性（8.72 [1.19]毫米对10.16 [1.48]毫米，p < 0.001）。在身材矮小的参与者中，无论性别，CTM都明显更短。男性紧急环甲膜切开术的假设成功率为93.3%，女性为73.5%。伸展位时估计CTM高度的方程确定为 -4.36 + 5.27×身高（米）+ 0.32×颏胸距离（厘米）。
由于CTM高度可能因年龄、性别和身高而异，环甲膜切开术套件应提供各种外径规格。
无 喉镜，2024年，第134卷，第1825 - 1830页
