Turan A, Kaya G, Koyuncu O, Karamanlioglu B, Pamukçu Z
Department of Anaesthesiology, Trakya University, Edirne, Turkey.
Eur J Anaesthesiol. 2006 Mar;23(3):234-8. doi: 10.1017/S0265021505002243.
We compared the laryngeal mask airway (LMA) and the laryngeal tube (LT) with the newly introduced perilaryngeal airway (CobraPLA, PLA) with regard to haemodynamic responses induced by airway insertion, clinical performance and occurrence of postoperative sore throat after short surgical procedures.
After premedication, 90 ASA I-II patients awaiting short surgical procedures were randomized to receive, LMA, LT or PLA. Anaesthesia was induced with intravenous propofol (2.5 mg kg(-1)) and mivacurium (0.2 mg kg(-1)). Number of attempts, time of insertion of the device, any other unwanted effect, mean aterial pressure, heart rate, oxygen saturation and end-tidal carbon dioxide were recorded. At the end of surgery, the cuff of the device was immediately deflated and the airway device was removed. The device was examined and noted for the presence of visible blood. Patients were asked to rate their throat soreness, dysphonia and dysphagia 1 and 24 h postoperatively.
There were no differences in haemodynamic variables. Insertion times for the devices were similar (LMA: 20 +/- 11 s, LT: 19 +/- 14 s and PLA: 21 +/- 12 s.) The success rates at first insertion were lower in the (LMA group (57%) when compared with the PLA (97%, P < 0.05). The number and type of airway interventions for achieving an effective airway were similar. When the airways were removed 50% of the PLA devices had positive blood traces, while only 17% of the LMA and LT devices had positive blood traces (P < 0.01). Fifty percent of the patients suffered from a sore throat in the PLA group, which was significantly higher than in the LMA and LT groups (P < 0.05).
We conclude that haemodynamic, ventilation and oxygenation variables throughout the surgery were similar with, LMA, LT and PLA, but LT and PLA were easier to insert; LMA and LT caused less mucosal trauma.
我们比较了喉罩气道（LMA）、喉管（LT）与新引入的环喉气道（CobraPLA，PLA）在短时间手术中气道插入引起的血流动力学反应、临床性能及术后咽痛的发生率。
90例等待短时间手术的ASA I-II级患者，在给予术前用药后，随机分为接受LMA、LT或PLA组。静脉注射丙泊酚（2.5 mg·kg⁻¹）和米库氯铵（0.2 mg·kg⁻¹）诱导麻醉。记录置入尝试次数、装置置入时间、任何其他不良效应、平均动脉压、心率、血氧饱和度和呼气末二氧化碳。手术结束时，立即放气装置的套囊并取出气道装置。检查装置并记录是否有可见血迹。术后1小时和24小时询问患者对咽痛、声音嘶哑和吞咽困难进行评分。
血流动力学变量无差异。各装置的插入时间相似（LMA：20±11秒，LT：19±14秒，PLA：21±12秒）。首次插入成功率在LMA组（57%）低于PLA组（97%，P<0.05）。实现有效气道的气道干预次数和类型相似。取出气道装置时，50%的PLA装置有阳性血迹，而LMA和LT装置只有17%有阳性血迹（P<0.01）。PLA组50%的患者有咽痛，显著高于LMA和LT组（P<0.05）。
我们得出结论，整个手术过程中LMA、LT和PLA的血流动力学、通气和氧合变量相似，但LT和PLA更容易插入；LMA和LT引起的黏膜创伤较小。
