Frucht-Pery J
Department of Ophthalmology, Hadassah University Hospital, Jerusalem, Israel.
Ophthalmic Surg Lasers. 1997 Mar;28(3):219-22.
Anesthesia during pterygium surgery is usually achieved with injections of anesthetic medications. This study evaluated the efficacy of topical anesthesia with benoxinate hydrochloride 0.4% for pterygium surgery.
One hundred fifty consecutive patients who had primary or recurrent pterygium underwent surgical excision of the lesion. Before the surgical procedure began, each eye that was operated on received 1 drop of benoxinate hydrochloride 0.4% solution every 1 minute for 10 minutes. The pain sensation was tested with 0.12 forceps. The pterygium was dissected, and 1 or 2 conjunctival sutures were placed, leaving bare sclera. Drops of benoxinate hydrochloride 0.4% were added every 5 minutes during the operation.
The average pterygium excision time in this study was 25 minutes. Of the 150 patients studied, only 3 required intraoperative injection of lignocaine 1%. In 2 cases, subconjunctival injection was performed, and in 1 case, retrobulbar injection was required to complete the procedure. Of the remaining 147 patients, 115 had discomfort or mild pain and asked for more anesthetics once or twice during the procedure. Postoperatively, the wounds epithelialized within 7 to 14 days in all patients, except for 2 who had postoperative dellen and 2 who received mitomycin-C postoperatively.
Topical administration of benoxinate hydrochloride 0.4% provides useful anesthesia for pterygium surgery.
翼状胬肉手术的麻醉通常通过注射麻醉药物来实现。本研究评估了0.4%盐酸丁氧普鲁卡因表面麻醉用于翼状胬肉手术的效果。
150例连续的原发性或复发性翼状胬肉患者接受了病变的手术切除。在手术开始前，每只手术眼每隔1分钟滴入1滴0.4%盐酸丁氧普鲁卡因溶液，共滴注10分钟。用0.12的镊子测试疼痛感觉。切除翼状胬肉，并放置1或2针结膜缝线，使巩膜裸露。术中每隔5分钟添加1滴0.4%盐酸丁氧普鲁卡因。
本研究中翼状胬肉的平均切除时间为25分钟。在150例研究患者中，只有3例需要术中注射1%利多卡因。2例进行了结膜下注射，1例需要球后注射才能完成手术。在其余147例患者中，115例在手术过程中有不适或轻度疼痛，并要求追加1或2次麻醉剂。术后，除2例术后出现角膜小凹和2例术后接受丝裂霉素-C治疗的患者外，所有患者的伤口均在7至14天内上皮化。
局部应用0.4%盐酸丁氧普鲁卡因可为翼状胬肉手术提供有效的麻醉。
