全髋关节置换术中使用氨甲环酸的有效性及安全性研究

2016-10-24 07:43张杭州白希壮梁庆威雷则鸣
中国医科大学学报 2016年10期
关键词:氨甲环酸氨甲环酸

张杭州,白希壮,梁庆威,雷则鸣

(中国医科大学附属第一医院运动医学科与关节外科,骨科,沈阳110001)



全髋关节置换术中使用氨甲环酸的有效性及安全性研究

张杭州,白希壮,梁庆威,雷则鸣

(中国医科大学附属第一医院运动医学科与关节外科,骨科,沈阳110001)

目的探讨在全髋关节置换术中静脉使用氨甲环酸的有效性及安全性。方法选择2014年6月至2015年6月于我科行初次单侧全髋关节置换的患者120例,分为氨甲环酸组(关闭切口前给予氨甲环酸10 mg/kg)和对照组(不给予氨甲环酸),每组60例。比较2组患者术后引流量、术后血红蛋白水平、输血比例及输血量、深静脉血栓发生率。结果氨甲环酸组术后引流量[(237.53±45.19)mL]低于对照组[(401.37±73.72)mL],氨甲环酸组术后血红蛋白水平[(127.57±13.55)g/L]高于对照组[(111.4±14.32)g/L],对照组术后输血率[37%(22/60)]高于氨甲环酸组[8%(5/60)],差异均有统计学意义。2组患者在术后3个月内均未发生肺栓塞,2组深静脉血栓发生率无明显差异(1.67%vs 3.33%)。结论全髋关节置换术中使用氨甲环酸能够有效减少术后失血量,降低术后输血比例。

全髋关节置换术;氨甲环酸;失血量

全髋关节置换术(total hip arthroplasty,THA)是目前治疗股骨头坏死及髋关节骨性关节炎等髋关节疾患的有效手段[1-5]。由于术中及术后出血量往往较大,既往有较大比例的患者术后需输血治疗[6-10]。但异体输血容易发生多种并发症[11],因此,减少失血量,使患者术后血红蛋白维持在较高的水平,有利于术后康复。围手术期失血量的控制目前主要以术中使用止血药物,如阿里斯泰、氨甲环酸等[12-16],以及术后使用加压弹力绷带包扎等措施为主。本研究采用病例对照研究方法,比较了THA中使用与不使用氨甲环酸的患者术后引流管失血量、总失血量、术后血红蛋白水平、输血比例、输血量及深静脉血栓发生率,旨在探讨THA中静脉使用氨甲环酸的有效性及安全性。

1 材料与方法

1.1一般资料

选择2014年6月至2015年6月期间于中国医科大学附属第一医院关节外科行初次单侧全髋关节置换的患者120例,年龄(66.92±5.55)岁。所有患者术前均存在跛行和严重的髋关节疼痛或股骨颈骨折,日常生活受限明显,髋关节评分平均31分。将患者随机分为2组:(1)氨甲环酸组(n=60):手术关闭切口前给予氨甲环酸10 mg/kg静脉滴注,平均年龄(66.92±5.55)岁,体质量指数(65.77±5.80)kg/m2;(2)对照组(n=60):不给予氨甲环酸,平均年龄(25.46±1.71)岁,体质量指数(25.12±1.77)kg/m2。2组患者年龄及体质量指数无统计学差异,具有可比性。

纳入标准:股骨头坏死、髋关节骨性关节炎或先天性髋臼发育不良需要行THA;术前血红蛋白、凝血功能、血小板功能正常;术前双下肢无深静脉血栓;单侧髋关节置换。排除标准:术前凝血功能异常;术前下肢存在静脉血栓;术区或其他位置存在感染灶;术前存在心肺功能异常。

1.2手术方法

所有患者于术前30 min静脉滴注头孢孟多酯钠2.0 g预防感染,药物过敏者给予依替米星300 mg。全麻下,患者取侧卧位,术区常规消毒铺单,髋关节后外侧做10~15 cm弧形切口,逐层切开并显露髂胫束筋膜,纵行切开,钝性分离肌肉组织,显露并切开后方的短外旋肌群,暴露并T型切开后方髋关节关节囊,显露关节腔。于股骨小转子上方约1.5 cm处,用摆动锯切除股骨头,行股骨颈成型。清理髋关节周围的关节囊及滑膜。用髋臼锉行髋臼成型,髋臼软骨去除,并显露出软骨下骨组织。安放髋臼假体,前倾20°,外展45°。然后用股骨髓腔锉逐步行股骨髓腔成型,安放股骨假体试模,复位后行髋关节稳定性检查,稳定性满意后,取出髋关节假体试模。反复用稀释碘伏及生理盐水冲洗,安放髋关节假体。术中进行髋关节DR检查示髋关节假体位置良好。再次彻底冲洗,清点器械及纱布无误后,放置引流管1枚,逐层缝合髋关节。手术切口关闭前,通过静脉滴注给予氨甲环酸组患者氨甲环酸10 mg/kg。

1.3术后处理及氨甲环酸的安全性及疗效评价

1.3.1术后处理:术后给予头孢孟多酯钠2.0 g预防感染。术后2 d内拔除引流管,记录引流管的出血量。术后1、3、5 d复查血常规,对于术后血红蛋白低于85 g/L或低于100g/L且出现精神萎靡、食欲不振、功能锻炼无力等严重贫血表现者,予以输血治疗。术后采用防血栓弹力袜,口服利伐沙班(50 mg/d)预防深静脉血栓。出院后患者继续口服利伐沙班(50 mg/d)1个月。术后1周时行双下肢深静脉彩色多普勒超声检查,明确是否有深静脉血栓的形成,注意记录无症状性的深静脉血栓。

1.3.2围手术期的安全性及疗效评价:记录术后总引流量、术后血红蛋白水平、输血患者比例和输血量、深静脉血栓发生率、住院时间及其他术后并发症(如术后急性期髋关节感染等)。通过Gross公式计算计算总失血量,总失血量=2×术前血容量×(术前红细胞比容-术后红细胞比容)/(术前红细胞比容+术后红细胞比容)。男性患者术前血容量(mL)= 0.366×身高(m)3+0.033×体质量(kg)+0.604。女性患者术前血容量(mL)=0.356×身高(m)3+0.033×体质量(kg)+0.183。

1.4统计学分析

2 结果

2.12组患者失血量的比较

对照组患者术后总失血量和术后引流管失血量[(941.85±95.74)mL,(401.37±73.72)mL]高于氨甲环酸组[(734.73±62.60)mL,(237.53±45.19)mL],对照组患者术后血红蛋白水平[(111.4± 14.32)g/L]低于氨甲环酸组[(127.57±13.55)g/L],差异均有统计学意义(P<0.01),见表1。

2.22组患者术后输血率和并发症发生率的比较

对照组术后输血率(37%)高于氨甲环酸组(8%),差异有统计学意义(P=0.03)。

术后第7天行彩色多普勒超声检查,结果显示:氨甲环酸组和对照组小腿肌间静脉血栓形成分别为2例和1例,均无明显症状,2组之间无统计学差异。2组患者术后切口愈合情况均良好,住院时间无显著差异,术后3个月内均未发生肺栓塞。

3 讨论

氨甲环酸的作用机制是竞争性结合纤维酶原在纤溶酶上的结合位点[17],从而抑制纤维蛋白的降解,促进凝血。ANDERSSON等[18]指出90%的氨甲环酸通过肾脏代谢排出体外。AHLBERG等[19]发现静脉给予氨甲环酸后,氨甲环酸能迅速到达关节滑膜及关节液,其中的药物浓度与血液中的药物浓度无明显差异。

目前静脉滴注氨甲环酸是人工关节置换术中最常用的方法,大量的临床研究[20-23]发现,氨甲环酸能降低THA术中失血量,减少输血治疗,且深静脉血栓发生率并未增高。氨甲环酸减少术后失血量的作用在女性患者中更为明显。本研究中,未使用氨甲环酸的对照组患者术后总失血量和术后引流管失血量显著高于使用了氨甲环酸的患者,与上述研究结果一致。

本研究中,未使用氨甲环酸的对照组患者术后血红蛋白水平明显低于氨甲环酸组,术后输血率则高于氨甲环酸组。2组患者在术后3个月内均未发生肺栓塞,深静脉血栓发生率无统计学差异。

本研究通过对照研究方法比较了使用与未使用氨甲环酸患者的术后引流量、术后血红蛋白量、输血患者比例及输血量、深静脉血栓发生率,结果发现,静脉滴注氨甲环酸能有效地降低患者的术后出血量,减少术后输血,并且不会增加深静脉血栓的风险。但是,本项研究样本量相对较小,结果可能会产生一定的偏倚,因此,有待于更大样本量的随机对照研究,以明确氨甲环酸是否对深静脉血栓及肺栓塞的发生率有影响。

表1 氨甲环酸组和对照组患者全髋关节置换术后资料对比(x±s,n=60)Tab.1 Com parison between tranexam ic acid group and the control group after total hip arthrop lasty

表1 氨甲环酸组和对照组患者全髋关节置换术后资料对比(x±s,n=60)Tab.1 Com parison between tranexam ic acid group and the control group after total hip arthrop lasty

Group Total blood loss(mL)The drainage tube blood loss(mL)Hemoglobin(g/L)Tranexamic acid group 734.73±62.59 237.53±45.19 127.57±13.56 Control group 941.85±95.74 401.37±73.72 111.4±14.32 t 14.026 14.677 6.352 P<0.000<0.000 0.001

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(编辑王又冬)

Efficiency and Safety of Tranexam ic Acid Intravenous Infution in Perioperative Total Hip Arthroplasty

ZHANG Hangzhou,BAI Xizhuang,LIANG Qingwei,LEI Zeming
(Department of Sports Medicine and Joint Surgery/Orthopaedics,The First Hospital,China Medical University,Shenyang 110001,China)

Objective To explore the efficiency and safety of intravenous infution of tranexamic acid(TXA)in total hip arthroplasty(THA). M ethods From June 2014 to June 2015,120 patients receiving unilateral THA were random ly divided into 2 groups,60 patients in each group. Patients in the control group didn't receive TXA;in the experimental group,the patients received 10 mg/kg TXA by intravenous infusion.The volume of postoperative blood drainage,hemoglobin,proportion of patients received blood transfusion,volume of blood transfusion,and the incidence of the deep vein thrombosis(DVT)were compared between the two groups.Results In the control group,the postoperative drainage volume was 401.37±73.72 mL;while in the experimental group,the postoperative drainage volume was 237.53±45.19 mL.No significant difference were found between the two groups in postoperative drainage volume(P>0.05).In the control group,the postoperative hemoglobin level was 111.4±14.32 g/L;while in the experimental group,the postoperative hemoglobin level was 127.57±13.55 g/L.There was significant difference between the two groups(P<0.05).In the control group,the postoperative ratio of transfusion(37%)was higher than that of the experimental group(8%)(P<0.05).No significant difference was found between the two groups in postoperative DVT(1.67%vs 3.33%,P>0.05).There was no pulmonary embolism in both of the 2 groups 3 months postoperatively.Conclusion TXA intravenous infusion can significantly decrease the postoperative blood loss and ratio of blood transfusion.

toatal hip arthroplasty;tranexamic acid;blood loss

R687.4

A

0258-4646(2016)10-0887-04

10.12007/j.issn.0258-4646.2016.10.005

国家自然科学基金(81501857)

张杭州(1984-),男,主治医师,博士. E-mail:zhanghz1000@163.com

2016-01-24

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