To explore the application effect of QC circle intervention activities in reducing the incidence of catheter-related infection (CRI) during femoral vein catheterization through burn wounds, and explore the establishment of maintenance standards for deep vein catheterization through burn wounds.

Patients who underwent femoral vein catheterization through burn wounds from January 2017 to December 2021 in Department of Burns and Plastic Surgery, the Second People′s Hospital of Shantou were selected and retrospectively investigated. Among them, 65 patients (95 times) who underwent routine treatment were set as non-intervention group, and 115 patients (185 times) who used QC group intervention activities to intervene in the QC nursing during catheterization were set as intervention group. The two groups of patients were divided into the duration of catheterization (0-22 d, 23-30 d, 31-45d). The occurrence of CRI after catheterization was counted. The measurement data were first tested for normality, expressed as ±s deviation, and t test was used for comparison between groups. Otherwise, the median (interquartile range) was expressed as Mann-Whitney U test; the enumeration data were expressed as the number of cases. Chi-square test or Fisher exact probability method was used according to the data. Bonferroni was used for multiple comparisons between the two groups.

In the intervention group, there were 99 cases of catheter indwelling for 0-22 days, 51 cases for 23-30 days and 35 cases for 31-45 days. In the non-intervention group, there were 30 cases of catheter indwelling for 0-22 days, 27 cases for 23-30 days and 38 cases for 31-45 days. The incidence of CRI in the non-intervention group was 30.00%, 40.47% and 47.37% at 0-22 d, 23-30 d and 31-45 d after catheter indwelling, which was higher than 14.14%, 17.65% and 22.86% in the intervention group, respectively. The incidence of CRI was statistically significant (χ²= 3.952, 4.938, 4.773, P<0.05). The incidence of CRI in the intervention group (16.76%) was significantly lower than that in the non-intervention group (40.00%)(χ²= 18.261, P<0.001). In addition, by Logistic multivariate analysis, burn depthⅡ° and Ⅲ° (OR=9.924, 95%CI: 5.376-16.921), total burn area (OR=1.048, 95%CI: 1.019-1.078), catheterization time (OR=1.074, 95%CI: 1.032-1.117) and QC intervention nursing method (OR=0.181, 95%CI: 0.103-0.256) were the key factors affecting CRI.

The intervention of QC circle can improve the quality and safety of patient care during femoral vein catheterization through the burn wound. While the catheter was removed as planned, the incidence of complications during catheterization through the burn wound is effectively reduced, as well as the medical and nursing costs, benefiting the patients.