Department of Anesthesiology, The Second Hospital of Jilin University, No.218, Ziqiang street, Nanguan District, Changchun City, 130000, Jilin Province, China.
BMC Anesthesiol. 2022 Sep 6;22(1):281. doi: 10.1186/s12871-022-01816-0.
A Y-shaped rotatable connector (YRC) for double-lumen tubes (DLT) is invented and compared with the traditional connector (Y-shaped connector, YC).
Sixty patients with ASA grade I-III, aged ≥ 18 years, who needed to insert a DLT for thoracic surgery were recruited and assigned into the YRC group (n = 30) and the YC group (n = 30) randomly. The primary endpoints included the inhaled air concentration (Fi) and the exhaled air concentration (Et) of sevoflurane before and after the switch between two-lung ventilation and one-lung ventilation at different times, positioning time, and switching time. The secondary endpoints were the internal gas volume of the two connectors, airway pressure, and the sputum suction time.
The Et and Fi of the YRC group and the YC group were significantly different (all p < 0.05) at 5s, 10s, and 30s after the patient switched from two-lung ventilation to one-lung ventilation. The positioning time of the YRC group was less than YC group (89.75 ± 14.28 s vs 107.80 ± 14.96 s, p < 0.05), as well as the switching time (3.60 ± 1.20 s vs 9.05 ± 2.53 s, p < 0.05) and the internal gas volume (17.20 ml vs 24.12 ml). There was no difference in airway pressure and the sputum suction time in two groups.
Compared with YC, YRC was beneficial for maintaining depth of anesthesia, improves efficiency for the switch between one-lung and two-lung ventilation, and shortens the tube positioning time.
本研究设计并比较了一种新型 Y 形旋转接头（YRC）与传统 Y 形接头（YC）在双腔管（DLT）中的应用。
选择 60 例 ASA 分级 I-III 级、年龄≥18 岁的择期行开胸手术患者，随机分为 YRC 组（n=30）和 YC 组（n=30）。主要观察指标为双肺通气与单肺通气切换后不同时间点（5s、10s、30s）时吸入气（Fi）和呼出气（Et）七氟醚浓度、接头定位时间、切换时间；次要观察指标为两种接头的内腔容积、气道压、吸痰时间。
切换后 5s、10s、30s 时 YRC 组与 YC 组的 Et 和 Fi 差异均有统计学意义（均 P<0.05）。YRC 组的接头定位时间（89.75±14.28s）和切换时间（3.60±1.20s）均短于 YC 组（107.80±14.96s、9.05±2.53s），差异有统计学意义（均 P<0.05）。两组患者的气道压及吸痰时间差异无统计学意义。
与 YC 相比，YRC 更有利于维持麻醉深度，缩短单肺通气与双肺通气切换时间，提高置管效率。
