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目的:自行拟定竹叶青属毒蛇咬伤诊断标准，并探讨覆盖式负压封闭引流（VSD）技术用于竹叶青属毒蛇咬伤的临床治疗效果及作用机制。方法:参照《中国蛇伤急救学》《中国蛇类》中有关内容制定广西竹叶青属毒蛇咬伤诊断标准：①肇事蛇为广西竹叶青属毒蛇；②患者所述蛇的外观形态基本符合广西竹叶青属毒蛇特征；③具备血液毒临床表现，即局部肿胀、伤口剧烈疼痛、部分患者出现皮下瘀斑。具备①或同时具备②和③即可诊断。选择2016年1月至2020年1月桂中桂北蛇伤救治基地/柳州市中西医结合蛇伤救治中心收治的广西竹叶青属毒蛇咬伤患者作为观察对象。将患者分为普通治疗组和覆盖式VSD技术组，每组60例。普通治疗组给予抗蛇毒血清、抗破伤风、伤口周边局封、抗炎、硫酸镁纱布外敷患肢、对症支持治疗等处理；覆盖式VSD技术组在普通治疗组基础上运用覆盖式VSD技术。两组从入院治疗次日开始计算周期，治疗周期均为7 d。在治疗周期中，每日08：00取血后采用全自动血细胞分析仪检测红细胞计数（RBC）和血红蛋白（Hb），全自动血凝分析仪检测凝血酶原时间（PT）、活化部分凝血活酶时间（APTT）、纤维蛋白原（Fib），并记录患肢肿胀程度及皮下瘀斑出现情况。结果:在治疗周期不同时间点，覆盖式VSD技术组与普通治疗组PT、APTT、Fib动态变化趋势差异均有统计学意义，两组Fib于第1～4天均有下降，第5天开始逐步回升，第4天覆盖式VSD技术组Fib最低值高于普通治疗组（g/L：0.70±0.03比0.41±0.01，n P<0.05）；两组PT在治疗周期前中期均有上升，后期回落，第5天覆盖式VSD技术组PT峰值明显低于普通治疗组（s：25.2±0.1比35.4±0.2，n P<0.05），且第7天覆盖式VSD技术组PT恢复至正常范围，普通治疗组仍异常；两组APTT在治疗周期一开始均增高并逐渐回落，第3天覆盖式VSD技术组APTT峰值低于普通治疗组（s：47.3±0.1比55.7±0.2，n P<0.05），其上升与下降速率也较普通治疗组平缓。而两组间RBC、Hb变化比较差异无统计学意义。随着时间的推移，两组患者患肢肿胀程度均有不同程度地缓解，覆盖式VSD技术组缓解程度较普通治疗组更为明显，组间差异有统计学意义（n χ2＝86.060，n P＝0.000）；且覆盖式VSD技术组皮下瘀斑出现率明显低于普通治疗组（13.3%比40.0%，n χ2＝10.909，n P＝0.002）。n 结论:将覆盖式VSD技术用于广西竹叶青属毒蛇咬伤并不加重出血，在有利于患肢消肿的同时还能促进凝血功能恢复，能更好地控制凝血功能障碍所致的不良事件发生。“,”Objective:To established the diagnostic criteria for venomous snakebite of Trimeresurus stejnegeri in Guangxi by ourselves, and explore the clinical effect and mechanism of covered vacuum sealing drainage (VSD) in the treatment for venomous snakebite of Trimeresurus stejnegeri in Guangxi.Methods:According to the n Chinese emergency medicine for snakebite and n the Chinese snake, the diagnostic criteria for venomous snakebite of Trimeresurus stejnegeri in Guangxi were formulated: ① the responsible venomous snake was identified as Trimeresurus stejnegeri in Guangxi; ② the appearance and morphology of the venomous snake described by the patient basically conformed to the characteristics of Trimeresurus stejnegeri in Guangxi;③ clinical manifestations of hematotoxin included local swelling, severe wound pain, and subcutaneous ecchymosis in some patients; having① or both ② and ③ could be diagnosed. The patients with venomous snakebite of Trimeresurus stejnegeri in Guangxi admitted to Snake Injury Treatment Base in Central and Northern Guangxi/Liuzhou Integrated Chinese and Western Medicine Snake Injury Treatment Center from January 2016 to January 2020 were enrolled. The patients were divided into the general treatment group and the covered VSD technology group, with 60 patients in each group. The general treatment group was treated with antivenom, anti-tetanus, closed injection around the wound, anti-inflammatory, magnesium sulfate gauze applied on the affected limb, symptomatic support treatment. The covered VSD technique was used in the covered VSD technology group based on the treatment options of the general treatment group. Treatment cycle of both groups were calculated from the next day of admission and lasted for 7 days. In the treatment cycle, blood was collected at 08:00 every day. The red blood cell count (RBC) and hemoglobin (Hb) were detected by automatic blood cell analyzer. The prothrombin time (PT), activated partial thromboplastin time (APTT) and fibrinogen (Fib) were detected by automatic blood coagulation analyzer, and the affected limb swelling degree and the appearance of subcutaneous ecchymosis were recorded.n Results:At different time points in the treatment cycle, the dynamic change trends of PT, APTT and Fib in the covered VSD technology group and the general treatment group were significantly different. Fib in both groups decreased on the 1-4 days, and gradually rose on the 5th day, and the lowest Fib value in the covered VSD technology group on the 4th day was higher than that in the general treatment group (g/L: 0.70±0.03 vs. 0.41±0.01, n P < 0.05). In the treatment cycle, PT of both groups increased in the early and middle stage, but decreased in the later stage. The peak value of PT of the covered VSD technology group on the 5th day was significantly lower than that of the general treatment group (s: 25.2±0.1 vs. 35.4±0.2, n P < 0.05), and the PT of the covered VSD technology group returned to the normal range on the 7th day, while the PT of the general treatment group was still abnormal. APTT in both groups increased at the beginning of the treatment cycle and gradually decreased. The peak value of APTT of the covered VSD technology group on the 3th day was lower than that in the general treatment group (s: 47.3±0.1 vs. 55.7±0.2, n P < 0.05), and the rate of increase and decline was also more gradual than that in the general treatment group. There was no significant difference in RBC or Hb between the two groups. With the passage of time, the degree of affected limb swelling was relieved to different degrees in both groups, and the remission degree in the covered VSD technology group was more obvious than that in the general treatment group, and there was significant difference between the two groups (χ n 2 = 86.060, n P = 0.000). The occurrence rate of subcutaneous ecchymosis in the covered VSD technology group was significantly lower than that in the general treatment group (13.3% vs. 40.0%, χ n 2 = 10.909, n P = 0.002).n Conclusions:The application of covered VSD technology to the venomous snakebite of Trimeresurus stejnegeri in Guangxi does not aggravate the bleeding. It is beneficial to the reduction of the swelling of the affected limb, and also promotes the recovery of coagulation function, which can better control the occurrence of adverse events caused by coagulation dysfunction.