Incidence, etiological characteristics and risk factors of intravascular CRI in burn patients

Yan Tian

Burn and Plastic Surgery Department, Qinghai Provincial People's Hospital, Xining, 810000, China

Objective: To investigate the incidence and etiological characteristics of intravascular CRI in burn patients, and to further analyze the influencing factors of CRI.

Methods: A retrospective analysis of 291 burn patients admitted to our hospital from June 2019 to June 2022. The clinical data of all patients, including general information such as age and gender, and the detection results of catheter pathogens, were analyzed. The incidence of CRI in burn patients, and the incidence of CRI in burns at different catheter placement positions. To explore the pathogenic bacteria composition ratio of CRI in burn patients, including analyzing the changes of pathogenic bacteria composition ratio, the pathogenic bacteria composition ratio in different catheters, and the pathogenic bacteria composition ratio in different catheter placement positions. The risk factors affecting CRI in burn patients were analyzed, and logistic regression analysis was used for multivariate analysis to determine the independent risk factors for CRI in burn patients.

Results: The incidence of CRI in CVC patients was higher, and the difference was statistically significant with that in PICC and AC patients ( P < 0.05). The difference was statistically significant ( P < 0.05). Among the pathogenic bacteria in burn CRI patients, Gram-negative bacteria accounted for the largest proportion, followed by Gram-positive bacteria. There were differences in the composition ratio of pathogenic bacteria in CRI patients with different catheter types, and CVC accounted for 88.46%, which was significantly different from the other two catheters ( P < 0.05)). In the risk factor analysis, the results showed that the total burn area, the location of the catheter, the third-degree area and the catheterization time were independent risk factors for the occurrence of CRI.

Conclusion: The incidence of CRI in burn patients is high, and Gram-negative bacteria are the main pathogenic bacteria. In addition, the total burn area, catheter placement location, third-degree area and catheter placement time are independent risk factors for CRI in burn patients. Therefore, it is necessary to pay attention to the burn condition of patients in clinical treatment, reduce the use of CVC, and reduce the time of intubation to reduce the incidence of CRI in patients .