Application of nano-silver dressing combined with covered vacuum sealing drainage technology in cobra bite

Limb swelling, pain, and coagulation dysfunction caused by cobra venom bite are difficult to treat, but the therapeutic effect is not ideal at present. Therefore, it is of great significance to find rapid and effective treatment. To explore the application value of nano-silver dressing combined with covered Vacuum sealing drainage (VSD) technology in Guangxi cobra bite. A total of 90 cases of cobra bite patients treated in our hospital from March to December 2019 were randomly divided into observation group and control group, with 45 cases in each group. The control group was treated with conventional treatment, and the observation group was treated with nanosilver dressing combined with covered VSD technology. The swelling degree of affected limbs, circumference measurement of bilateral limbs, pain degree of affected limbs, inflammatory factors, and coagulation function indexes were compared between the two groups. After treatment, the swelling degree and visual pain scale score of the observation group were lower than those of the control group. The peripheral diameter difference of bilateral limbs in the observation group was smaller than that in the control group 1 d and 3 d after treatment. The levels of inflammatory factors in the observation group were better than those in the control group. The coagulation function of the observation group after treatment was better than that of the control group. Conclusions: This study confirmed for the first time that nano-silver dressing combined with covered VSD technology can effectively eliminate local swelling, relieve pain, eliminate inflammatory reaction, improve blood circulation, and provide a new method for clinical treatment.