Department of Orthopaedics and Trauma, University of Benin Teaching Hospital, PMB 1111, Benin City, Nigeria.
Arch Orthop Trauma Surg. 2012 Jan;132(1):21-4. doi: 10.1007/s00402-011-1389-z. Epub 2011 Sep 10.
In corrective osteotomy, wound closure is undertaken with or without deflation of the tourniquet. Hypoxia from the tourniquet causes vasodilatation associated with reactionary haemorrhage and reduced haemoglobin concentration and possibly increased blood transfusion rate. Reactionary haemorrhage and related transfusion need can be reduced through vasoconstriction from adrenaline infiltration.
A randomized, placebo-controlled trial was done to compare adrenaline-saline solution to normal saline in the control of reactionary haemorrhage after proximal tibial osteotomy in children. Sixty-one eligible patients were divided into two groups and had corrective osteotomy under the same surgeon over a period of 7 years.
Wound infiltration with adrenaline-saline solution 1:200,000 and normal saline was done in groups one and two, respectively. No intra-operative adverse effect was recorded. There was a 20% incidence of superficial wound dehiscence in group 1 and none in controls. The mean volume of blood in drains in the first 24 h post operation was 85 ml in group 1 and 225 ml in group 2 (p < 0.001). The mean haemoglobin level on the fifth day post operation was 11.8 g/dl in group 1 and 8.2 g/dl in group 2 (p < 0.001). There was no blood transfusion in group one while two patients were transfused in group two.
In conclusion, wound infiltration with adrenaline was effective in reducing the extent of reactionary haemorrhage and post-operative drop in haemoglobin concentration. There was no significant difference in the transfusion rates in both groups.
在矫正性截骨术中,可在止血带充气或不充气的情况下进行伤口闭合。止血带引起的缺氧导致血管扩张,与反应性出血、血红蛋白浓度降低以及可能增加的输血率有关。通过肾上腺素浸润引起的血管收缩,可以减少反应性出血和相关输血需求。
一项随机、安慰剂对照试验比较了肾上腺素生理盐水溶液与生理盐水在儿童胫骨近端截骨术后控制反应性出血中的作用。61 名符合条件的患者在 7 年内被分为两组,并由同一位外科医生进行矫正性截骨术。
一组和二组分别使用肾上腺素生理盐水溶液 1:200000 和生理盐水进行伤口浸润。未记录到术中不良反应。一组有 20%的浅表伤口裂开,对照组无伤口裂开。术后 24 小时内引流的平均出血量在一组为 85ml,在二组为 225ml(p<0.001)。一组术后第 5 天的平均血红蛋白水平为 11.8g/dl,二组为 8.2g/dl(p<0.001)。一组无输血,二组有 2 名患者输血。
总之,伤口浸润肾上腺素可有效减少反应性出血和术后血红蛋白浓度下降的程度。两组的输血率无显著差异。