1.A case of poisoning caused by head and face bite of Deinagkistrodon acutus
Mingjun LIU ; Wanjuan LIU ; Linjie LAI ; Lutao XIE ; Songru CHEN ; Pin LAN
Chinese Journal of Industrial Hygiene and Occupational Diseases 2023;41(8):626-629
Snake bites kill and maim many people every year. Head and face venomous snake bite is rare, easy to misdiagnose and miss diagnosis, and the fatality rate is high. In this paper, 1 case of head and face venomous snake bite poisoning was reported and 10 similar cases were reviewed. The clinical characteristics of head and face venomous snake bite poisoning were summarized to provide guidance for clinical diagnosis and treatment. Head and face venomous snake bites may lead to airway injury, edema, and airway obstruction is the main cause of early death. Timely intubation or tracheotomy to maintain oxygen supply and early use of antivenin can improve prognosis.
2.A case of poisoning caused by head and face bite of Deinagkistrodon acutus
Mingjun LIU ; Wanjuan LIU ; Linjie LAI ; Lutao XIE ; Songru CHEN ; Pin LAN
Chinese Journal of Industrial Hygiene and Occupational Diseases 2023;41(8):626-629
Snake bites kill and maim many people every year. Head and face venomous snake bite is rare, easy to misdiagnose and miss diagnosis, and the fatality rate is high. In this paper, 1 case of head and face venomous snake bite poisoning was reported and 10 similar cases were reviewed. The clinical characteristics of head and face venomous snake bite poisoning were summarized to provide guidance for clinical diagnosis and treatment. Head and face venomous snake bites may lead to airway injury, edema, and airway obstruction is the main cause of early death. Timely intubation or tracheotomy to maintain oxygen supply and early use of antivenin can improve prognosis.
3.Epidemiological features of 6 471 individuals with rabies exposure in Lishui city, Zhejiang province
Linjie LAI ; Yi CHEN ; Wang DU ; Wanjuan LIU ; Shuaiting MA ; Lutao XIE ; Pin LAN
Chinese Journal of Experimental and Clinical Virology 2024;38(4):383-387
Objective:To understand the epidemiological characteristics and post-exposure prophylaxis (PEP) situation of rabies exposure population in the animal injury outpatient department of Lishui Central Hospital, so as to provide reference for rabies prevention and control in this region.Methods:The epidemiological data of 6 471 rabies-exposed persons in Lishui Central Hospital from 2021 to 2023 were retrospectively analyzed, including the gender and age of exposed persons, the month and location of injury, the species of injured animals, the exposure grade, rabies vaccination, rabies passive immunization agents, etc.Results:From 2021 to 2023, a total of 6 471 cases of rabies exposure were treated in the animal injury outpatient department of Lishui Central Hospital. From 2021 to 2023, 1 133 cases, 2 135 cases and 3 203 cases were treated respectively. April to November was the peak period of exposure. The population of 21 to 30 years had the highest rate of treatment, reaching 27.79% (1 798/6 471), and was a high-risk group of exposure. The age composition ratio of rabies exposure in the three years was statistically significantly different ( χ2=43.82, P<0.001); the male to female ratio was 1∶1.14 ( χ2=1.63, P=0.442); 3 317 cases (51.26%, 3 317/6 471) were injured by cats, and 2 614 cases (42.16%, 2 614/6 471) were injured by dogs, cats and dogs were the main injured animals ( χ2=18.63, P=0.098). The upper limbs (4 131/6 471, 63.84%) and lower limbs (1 848/6 471, 28.56%) were the most exposed sites, and there was a statistically significant difference in the exposure composition ratio of each site in three years ( χ2=105.79, P<0.001). Grade II exposure accounted for 31.79% (2 057/6 471), grade III exposure accounted for 62.31% (4 032/6 471). Among grade III exposure individuals, those who used passive immune preparations accounted for 55.13% (2 232/4 032). Conclusions:The number of rabies-exposed patients in the animal injury outpatient department of Lishui Central Hospital has been increasing year by year, and the population of patients injured by cats and dogs is particularly prominent. The utilization rate of passive immune preparations for grade III exposure patients still needs to be further improved.
4.Repair effects and mechanism of Zhixu burn ointment on deep second-degree burned model rats
Jiao LIU ; Xiao LIANG ; Tao HU ; Wanjuan DENG ; Jinghua RUAN ; Haibing QIAN
China Pharmacy 2023;34(11):1320-1325
OBJECTIVE To study the repair effect and mechanism of Zhixu burn ointment on deep second-degree burned model rats. METHODS The deep second-degree burned model was established with a temperature-controlled apparatus. The model rats were randomly divided into model group, Jingwanhong ointment group and Zhixu burn ointment high-dose, medium-dose and low-dose groups (specifications were 20 g core+20 mL wetting agent, 10 g core+20 mL wetting agent, 5 g core+20 mL wetting agent, respectively). Another blank control group (only dehairing treatment, no modeling) was set up, with 10 rats in each group. The rats in each administration group were given corresponding drugs, the rats in the blank control group were not treated, and the rats in the model group were given normal saline once a day for 21 d. The healing of burn wounds and histomorphological changes of burned skin in each group of rats were observed, and the healing rate of wounds was calculated; the levels of vascular endothelial growth factor (VEGF), interleukin-1β (IL-1β), IL-6 and tumor necrosis factor-α(TNF-α) in the wound skin tissue of rats were detected by enzyme-linked immunosorbent assay; immunohistochemical method was used to detect the expression levels of VEGF and platelet endothelial cell adhesion molecule-1 (CD31) protein in burned skin tissue. RESULTS Compared with model group, the wound area of the rats in the Jingwanhong ointment and Zhixu burn ointment groups gradually decreased and healed significantly by day 21, and the wound healing rate was significantly higher (P<0.05 or P<0.01); thicker new epidermal layer was seen in the skin tissue, and connective tissue and new blood vessels were significantly increased in the dermis; the expression levels of IL-1β, IL-6 and TNF-α were significantly decreased (P<0.05 or P<0.01), and the expression levels of VEGF and CD31 protein were significantly increased (P<0.05 or P<0.01) in the burned skin tissue. CONCLUSIONS Zhixu burn ointment can repair the skin of deep second-degree burned model rats, and the mechanism may be related to reducing the inflammatory response of burn wound and promoting the angiogenesis.