BACKGROUND Performing spinal anaesthesia using the conventional popping method with a 27-gauge (27G) spinal needle is technically difficult. In this study, we compared the aspiration and conventional popping method for spinal anaesthesia using 27G Quincke-type needles. METHODS This prospective, randomized study enrolled 90 patients, aged 19 to 65 years, with American Society of Anesthesiologists physical status I-III, who were undergoing spinal anaesthesia. Patients were randomly assigned to one of two groups using a computer-generated random number table: patients receiving spinal anaesthesia using the aspiration method, in which the needle is advanced with continuous aspiration, or the conventional popping method. The primary outcome measure was the success rate of the first attempt to perform dural puncture. Number of attempts and passages, withdrawal cases, successful attempt time, total procedure time, and actual depth of dural puncture were recorded. RESULTS Eighty-eight patients were included in the study. In the aspiration group, the success rate of first attempt for dural puncture was 93.3%, compared with 72.1% in the popping group (P = 0.019). Success involving needle withdrawal was recorded in 4 (8.9%) patients in the aspiration group and 13 (30.2%) in the popping group (P = 0.024). In the popping group, the number of attempts was significantly higher (P = 0.044), and total procedure time was significantly longer (P = 0.023). Actual depths of dural puncture were deeper in the popping group than in the aspiration group (P = 0.019). CONCLUSIONS The aspiration method using a 27G Quincke-type needle offers clinical benefits for dural puncture compared with the conventional popping method for spinal anaesthesia. TRIAL REGISTRATION Clinical research information service number: KCT0002815, registered 21/Apr/2018. Retrospectively registered.

中文翻译：

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前瞻性随机比较脑脊液抽吸术和常规爆裂方法使用27口径脊柱针进行脊柱麻醉的患者。

背景技术使用常规的27号（27G）脊柱穿刺法进行脊柱麻醉在技术上是困难的。在这项研究中，我们比较了使用27G Quincke型针头进行脊柱麻醉的抽吸方法和常规爆破方法。方法这项前瞻性随机研究招募了90名年龄在19至65岁之间的美国麻醉医师协会I-III身体状况的患者，他们均接受了脊髓麻醉。使用计算机生成的随机数表将患者随机分配到两组中的一组：使用抽吸法（其中针头连续抽吸前进）的脊柱麻醉或常规的弹出方法接受脊髓麻醉的患者。主要结局指标是首次进行硬脑膜穿刺的成功率。尝试次数和通过次数，记录撤回病例，成功尝试时间，总手术时间和硬膜穿刺的实际深度。结果本研究纳入了88名患者。在抽吸组中，首次硬膜穿刺的成功率为93.3％，而在弹出组中为72.1％（P = 0.019）。抽吸组中有4例（8.9％）的患者成功抽出针头，而弹出组中有13例（30.2％）的患者成功抽针（P = 0.024）。在弹出组中，尝试次数显着增加（P = 0.044），总手术时间明显更长（P = 0.023）。爆破组硬膜穿刺的实际深度比抽吸组深（P = 0.019）。结论与传统的脊椎麻醉爆破方法相比，使用27G Quincke型针头的抽吸方法在硬膜穿刺方面具有临床优势。试验注册临床研究信息服务号码：KCT0002815，于2018年4月21日注册。追溯注册。