Ophthalmology Department, Zagazig University, Zagazig, Egypt.
Ophthalmologica. 2012;227(2):111-4. doi: 10.1159/000329865. Epub 2011 Aug 5.
To compare the efficacy and safety of single-injection inferomedial (IM) and conventional inferotemporal (IT) peribulbar blockades.
This prospective randomized study included 200 patients who were randomly allocated into two equal groups (n = 100 patients); in the first group, patients received IM peribulbar injection (IM group), while IT peribulbar injection was performed for the second group (IT group). The measurement data were patient characteristics, number of patients who required supplementations, total anesthetic volume injected, surgeon's experience and any recordable complications.
The number of patients who required supplemental anesthetics due to inadequate block was significantly higher in the IT group (15 patients, 15%, vs. no patients, 0%, in the IM group). The total anesthetic volume injected was significantly lower in the IM group (5.6 ± 0.8 vs. 9.8 ± 0.7 ml in the IT group). Surgeon's satisfaction was significantly higher in the IM group (100 vs. 22% in the IT group). The incidences of complications were not significantly different between the two groups.
It is safe and effective to conduct single-injection IM peribulbar blockade using a small needle size and low anesthetic volume.
比较单次注射内直肌(IM)和传统下直肌(IT)球周阻滞的疗效和安全性。
这项前瞻性随机研究纳入了 200 名患者,他们被随机分为两组(每组 100 名患者);第一组患者接受 IM 球周注射(IM 组),而第二组患者接受 IT 球周注射(IT 组)。测量数据包括患者特征、因阻滞不全需要补充麻醉剂的患者数量、注射的总麻醉剂体积、外科医生的经验和任何可记录的并发症。
因阻滞不全需要补充麻醉剂的患者数量在 IT 组显著更高(15 名患者,15%,而 IM 组无患者,0%)。IM 组注射的总麻醉剂体积显著更低(5.6 ± 0.8 毫升比 IT 组的 9.8 ± 0.7 毫升)。IM 组外科医生的满意度显著更高(100%比 IT 组的 22%)。两组并发症的发生率无显著差异。
使用小针头尺寸和低麻醉剂体积进行单次注射 IM 球周阻滞既安全又有效。