Objective To study wound infection situations in grade Ⅲ exposure of hands caused by cats and dogs bites in elderly people.Methods Two hundred and thirty-sixelderly patients with grade Ⅲ exposure of hands caused by cats and dogs bitestreated in Department of Emergency Surgery of Beijing Haidian Hospitalfrom January 2020 to June 2023 were selected and divided into group A of 112 cases and group B of 124 cases based on different animals causing injuries.Group A caused bycat bites,group B caused bydog bites.Infection status between two groups was compared.Results Infection rate of group B was lower than that of group A(χ2=9.710,P<0.05).Fastest infection in group A occurred one day after debridement,and infection rate peaked at three days after debridement,after which infection rate gradually decreased.Fastest infection rate in group B occurred two days after debridement,with highest infection rate at three days after debridement,and infection rate gradually decreased thereafter However,there was no significant difference in the infection rate between the two groups on the 1st,2nd,3rd,4th and 5th day of debridement(P<0.05).Infection rate of infection limited to hands only in group Bwas higher than that in group A(χ2=5.539,P<0.05).Conclusion Infection of gradeⅢexposure of hands caused by cats in elderly peopleoccurs earlier,faster,more severe,and has a higher infection ratethan those caused by dogs.
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