Objective  To explore the preventive effect of evidence-based nursing targeting to risk factors on acute pressure ulcer in patients during cardiopulmonary bypass surgery.

  Methods  A total of 240 patients who underwent cardiopulmonary bypass surgery in our department were divided into observation group and control group, 120 cases in each group. The control group was given routine nursing, while the observation group was given evidence-based nursing targeting to risk factors to prevent intraoperative pressure ulcers on the basis of the control group. The skin condition and the occurrence of pressure ulcers were compared between the two groups.

  Results  The skin humidity score at 6 d after operation of the observation group was lower than that of the control group(P < 0.05). The incidence of pressure ulcer within 6 days after operation in the observation group was lower, and the average area of pressure ulcer was smaller than that in the control group, the differences were statistically significant (P < 0.05).

  Conclusion  Evidence-based nursing targeting to risk factors can improve the skin condition of patients undergoing cardiopulmonary bypass surgery and reduce the occurrence of pressure ulcers after operation.