Armstrong D N, Kingsnorth A N
Ann R Coll Surg Engl. 1986 Jul;68(4):207-8.
Because recent clinical trials have shown that dextran solutions can prolong the local anaesthetic action of 0.25% bupivacaine, a prospective double blind trial was performed in patients (n = 50) undergoing uncomplicated elective inguinal herniorrhaphy under local anaesthesia alone. Patients were randomised prior to infiltration of local anaesthesia into 2 groups: 0.5% bupivacaine (30 ml) diluted with an equal volume of either 0.9% saline or an equal volume of dextran 110. There was no significant difference in duration nor degree of postoperative anaesthesia between the two groups. Dextran solutions were found to be significantly more acidic than saline solutions and the possible effects of this on bupivacaine kinetics are discussed.
由于近期临床试验表明葡聚糖溶液可延长0.25%布比卡因的局部麻醉作用,因此对仅接受局部麻醉的50例择期行无并发症腹股沟疝修补术患者进行了一项前瞻性双盲试验。在局部麻醉浸润前,将患者随机分为2组:0.5%布比卡因(30 ml)用等体积的0.9%生理盐水或等体积的右旋糖酐110稀释。两组术后麻醉持续时间和程度均无显著差异。发现葡聚糖溶液的酸性明显高于盐溶液,并讨论了其对布比卡因动力学可能产生的影响。