目的 建立一种改良的机械性牵拉血管痉挛模型,模拟重建术后的血管痉挛。 方法 48只Sprague-Dawley大鼠随机分为6组:血管牵拉组(拉力分别是5、10、15、20及25 g);血管钝性剥离组(对照组)。激光散斑血流成像仪监测血管平均血流灌注,收集痉挛持续时间和达到超灌注所需时间作为统计参数。 结果 拉力25 g组痉挛程度过强,剔除研究。拉力5 g组和10 g组血管痉挛持续时间和超灌注时间较短,与对照组比较差异有统计学意义(P<0.05);拉力15 g组与对照组比较差异无统计学意义(痉挛持续时间P=0.801;超灌注时间P=0.629);拉力20 g组与对照组比较,痉挛持续时间差异有统计学意义(P=0.014),超灌注时间差异无统计学意义(P=0.081)。 结论 双向15 g拉力诱发的动脉痉挛能很好地模拟临床血管剥离状态,是一种可靠的、成功率较高的血管痉挛模型。
Abstract
Objective To establish a mechanical traction vasospasm model, for simulating vasospasm post-surgery. Methods Forty-eight Sprague-Dawley rats were randomly divided into 6 groups: Group 1-5 was vascular traction groups (traction force was 5,10,15,20 and 25g, respectively); Group 6 was blunt vascular dissection group (control group). Laser Speckle contrast imaging was used to monitor the average blood flow perfusion, and to collect the duration of spasm and the time needed to achieve hyperperfusion as statistical parameters. Results Group 5 had hyperspasticity and was not included in the study. The duration and hyperperfusion time of vasospasm in group 1 and group 2 were relatively short, which was statistically significant compared with the control group (P<0.05). There was no significant difference between the third group and the control group (spasm duration P=0.801; hyperperfusion time P=0.629). Compared with the control group, the fourth group showed statistically significant difference in spasm duration (P=0.014), but no statistically significant difference in hyperperfusion duration (P=0.081). Conclusions Vasospasm induced by bidirectional tension of 15g can well simulate clinical vascular dissection, and it is a reliable model with high success rate.
关键词
机械性血管痉挛模型 /
显微重建外科 /
肌源性血管痉挛
Key words
Mechanical vasospasm model /
Micro-reconstructive surgery /
Myogenic vasospasm
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
[1] 徐达传, 钟世镇. 深入开展基础与临床研究促进皮瓣外科的进一步发展[J]. 中国临床解剖学杂志, 2004, 22(1): 3-4. DOI: 10.3969/j.issn.1001-165X.2004.01.001.
[2] 吴召森, 侯建玺, 谢书强, 等. 三定点和四定点褥式外翻血管吻合法在断指(肢)再植中的应用[J]. 中华显微外科杂志, 2019, 42(1): 75-77. DOI: 10.3760/cma.j.issn.1001-2036.2019.01.023.
[3] Ueda K, Harii K. Comparative study of topical use of vasodilating solutions[J]. Scand J Plast Reconstr Surg Hand Surg, 2003, 37(4): 201-207. DOI: 10.1080/02844310310016377.
[4] Puckett CL, Winters RR, Geter RK, et al. Studies of pathologic vasoconstriction (vasospasm) in microvascular surgery[J]. J Hand Surg Am, 1985, 10(3): 343-349. DOI: 10.1016/s0363-5023(85)80033-2.
[5] Wadström J, Gerdin B. Nervous influence on traumatic vasospasm in the rabbit ear artery[J]. Microsurgery, 1991, 12(2): 89-95. DOI: 10.1002/micr.1920120207.
[6] Vargas CR, Iorio ML, Lee BT. A systematic review of topical vasodilators for the treatment of intraoperative vasospasm in reconstructive microsurgery[J]. Plast Reconstr Surg, 2015, 136(2): 411-422. DOI: 10.1097/PRS.0000000000001431.
[7] Zhou Y, Liu Y, Hao Y, et al. The mechanism of botulinum A on Raynaud syndrome[J]. Drug Des Devel Ther, 2018, 12(2): 1905-1915. DOI: 10.2147/DDDT.S161113.
[8] Yavuz C, Callskan A, Karahan O, et al. Evaluation of the vasoplegic impact of papaverine in the rat aorta[J]. J Pak Med Assoc, 2014, 64(6): 660-663.
[9] Hýža P, Streit L, Schwarz D, et al. Vasospasm of the flap pedicle: the effect of 11 of the most often used vasodilating drugs. Comparative study in a rat model[J]. Plast Reconstr Surg, 2014, 134(4): 574e-584e. DOI: 10.1097/PRS.0000000000000570.
[10]Fang F, Liu MM, Xiao JT, et al. Arterial supercharging is Mmore beneficial to flap survival due to quadruple dilation of venules[J]. J Surg Res, 2020, 247(2): 490-498. DOI: 10.1016/j.jss.2019.09.056.
[11]Hýža P, Streit L, Schwarz D, et al. Vasospasm of the flap pedicle - the new experimental model on rat[J]. Acta Chir Plast, 2014, 56(1-2): 3-11.
[12]Bumbaširević M, Lešić A, Palibrk T, et al. Lower limb replantation: 27 years follow up[J]. Injury, 2020, 51(Suppl 4): S77-S80. DOI: 10.1016/j.injury.2020.02.113.
[13]冯仕明, 王爱国. 穿支皮瓣在下肢创面修复中的临床应用研究进展[J]. 中华解剖与临床杂志, 2015, (3): 272-275. DOI: 10.3760/cma.j.issn.2095-7041.2015.03.024.
[14]韩夫, 郑朝, 王洪涛, 等. 带阔筋膜股前外侧游离皮瓣修复头部鳞状细胞癌切除后硬脑膜缺损的效果[J]. 中华烧伤杂志, 2020, 36(3): 219-223. DOI: 10.3760/cma.j.cn501120-20190505-00222.
[15]Turin SY, Walton RL, Dumanian GA, et al. Current practices in the management of postoperative arterial vasospasm in microsurgery[J]. J Reconstr Microsurg, 2018, 34(4): 242-249. DOI: 10.1055/s-0037-1612601.
[16]Rubanyi GM. Endothelium-derived relaxing and contracting factors[J]. J Cell Biochem, 1991, 46(1): 27-36. DOI: 10.1002/jcb.240460106.
[17]Wingard CJ, Browne AK, Murphy RA. Dependence of force on length at constant cross-bridge phosphorylation in the swine carotid media[J]. J Physiol, 1995, 488 (Pt 3): 729-739. DOI: 10.1113/jphysiol.1995.sp021004.
[18]马启明, 庄跃宏. 皮瓣移植术后血管痉挛机制与解痉挛药物研究进展[J]. 中国临床解剖学杂志, 2020, 38(2): 231-234. DOI: 10.13418/j.issn.1001-165x.2020.02.027.
基金
福建省自然科学资金(2018J01831);科技创新联合资金项目(2017Y9112)