Analysis of risk factors for skin flap thrombosis after free flap repair of large tissue defects in the head and face caused by mild to moderate traumatic brain injury
Objective Analyze the risk factors for skin flap thrombosis in patients with extensive tissue defects in the head and face caused by mild to moderate traumatic brain injury after undergoing free flap transplantation repair surgery.Methods:Retrospective analysis of clinical data of patients who underwent free skin flap transplantation to repair large tissue defects in the head and face caused by mild to moderate traumatic brain injury in our hospital from January 2020 to October 2023.Based on the occurrence of skin flap thrombosis after skin flap repair surgery,the study subjects were divided into non thrombotic group and thrombotic group.Multivariate logistic regression analysis was used to analyze the risk factors for thrombosis formation.Results:A total of 105 patients were collected,and 21 cases(thrombus group)developed skin flap thrombosis after flap repair surgery,with an incidence rate of 20%.Among them,8 cases(38.09%)had arterial thrombosis,10 cases(47.62%)had venous thrombosis,and 3 cases(14.29%)had mixed thrombosis.The results of univariate analysis showed that different age,whether diabetes was combined,preoperative fasting blood glucose level,preoperative and postoperative blood pressure level,D-dimer level,whether anticoagulant drugs were given after surgery,and whether pressure bandage was the related factors of flap thrombosis.The results of multivariate logistic regression analysis showed that high preoperative fasting blood glucose,low postoperative blood pressure,high D-dimer levels,and postoperative pressure bandaging were risk factors for skin flap thrombosis in patients with large tissue defects in the head and face caused by mild to moderate traumatic brain injury who underwent free flap transplantation repair surgery.Conclusion:The incidence of skin flap thrombosis is higher in patients with extensive tissue defects in the head and face caused by mild to moderate traumatic brain injury after free skin flap transplantation repair.High preoperative fasting blood glucose,low postoperative blood pressure levels,high D-dimer levels,and postoperative pressure bandaging are risk factors.Clinical attention should be paid to risk assessment and early intervention measures should be taken to reduce the risk of thrombosis and improve skin flap survival.
Craniocerebral injuryHead and faceLarge area tissue defectFree skin flapSkin flap transplantation repairThrombosis