BACKGROUND:Clinical limb ischemia-reperfusion with no reflow phenomenon after vascular injury repair seriously affects the prognosis of patients. Therapeutic effect of hyperbaric oxygen in myocardial ischemia reperfusion is exactly confirmed, but hyperbaric oxygen is rarely reported in the treatment of limb ischemia-reperfusion. OBJECTIVE:To detect the expression of vascular endothelial growth factor and intracellular adhesion molecule 1 and to investigate the effect of hyperbaric oxygen on the prognosis of limb ischemia-reperfusion with no reflow phenomenon. METHODS:By clinical screening, cases of main arterial injury of the limbs were selected and subjected to vascular repair for restoring limb blood supply. After surgery, al the cases were randomly divided into two groups (Combined treatment group and surgical group), 16 cases in each group. Combined treatment group was treated with hyperbaric oxygen combined with clinical anticoagulant, antiplatelet treatment;surgical group treated with only postoperative clinical treatment. Another 16 adult healthy volunteers were selected to receive hyperbaric oxygen as hyperbaric oxygen group. Expressions of vascular endothelial growth factor and intracellular adhesion molecule 1 were detected using enzyme-linked immunosorbent assay at 8, 72 hours and 7 days after surgery. RESULTS AND CONCLUSION:In the combined treatment and surgical groups, patients exhibited higher expressions of vascular endothelial growth factor and intracellular adhesion molecule 1 than those in the hyperbaric oxygen group (P<0.01). After 72 hours, the expression of vascular endothelial growth factor was significantly higher in the combined treatment group than the surgical group (P<0.01). At 8 and 72 hours, the expression of intracellular adhesion molecule 1 was lower in the combined treatment group than the surgical group (P<0.05). These findings suggest that hyperbaric oxygen can induce high expression of vascular endothelial growth factor and inhibit intracellular adhesion molecule 1, which is crucial for improving growth of blood capil ary, formation of endothelial cells, reducing no reflow phenomenon.%背景：肢体血管损伤修复后缺血再灌注无复流现象严重影响患者的预后，高压氧对于治疗心肌缺血再灌注的效果确切，但对于治疗肢体缺血再灌注的疗效鲜有报道。 目的：检测患肢血清血管内皮细胞生长因子、细胞间黏附分子1的表达，探讨高压氧对肢体缺血再灌注后无复流现象预后的影响。 方法：临床筛选肢体主干动脉损伤病例，行血管修复，恢复肢体血供。术后随机分为2组(外科治疗并高压氧组、外科治疗组)，每组16例。外科治疗并高压氧组以高压氧仓结合临床抗凝、趋聚等治疗，外科治疗术后仅使用临床抗凝、趋聚等治疗方案。另外选取正常成年人体检志愿者16例单纯使用高压氧治疗为高压氧组。3组均于术后8h、72h、7d以酶联免疫吸附法检测再灌注肢体血清血管内皮细胞生长因子、细胞间黏附分子1表达水平。 结果与结论：外科治疗两组患者血管内皮细胞生长因子在术后呈现高表达，各时间显著高于高压氧组(P <0.01)；在72 h外科治疗并高压氧组血管内皮细胞生长因子表达显著高于外科治疗组(P<0.01)。外科治疗两组患者相对于高压氧组细胞间黏附分子1同样呈现高表达(P<0.01)，在8 h、72 h时间段外科治疗并高压氧组表达水平低于外科治疗组(P<0.05)。结果提示高压氧能诱导血管内皮细胞生长因子的高表达，抑制细胞间黏附分子1的表达，对于促进毛细血管的生长、内皮细胞生成、减轻缺血再灌注无复流现象对组织的损害有重要意义。
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