Risk factors associated with catheter-related venous thrombosis: a meta-analysis

So far, the risk factors of catheter-related venous thrombosis (CRVT) are not fully understood. We use evidence-based medicine to find the risk factors of CRVT by pooling the current studies that reported the risk factors of CRVT, aiming to provide guidance for clinical diagnosis and treatment.We searched PubMed, Embase, and Cochrane Library from the establishment of the database to July 2021. We included studies that reported the risk factors of CRVT, and we excluded duplicate publications, research without full text, incomplete information or inability to conduct data extraction, animal experiments, reviews, and systematic reviews. STATA 15.1 was used to analyze the data.The pooled results show that history of venous thrombosis (odds ratio [OR] = 3.75, 95% confidence interval [CI]: 1.02-13.85; P = 0.047), cancer (OR = 1.74, 95% CI: 1.17-2.57; P = 0.006), infection (OR = 2.13, 95% CI:1.33-3.42; P = 0.002), and multilumina (OR = 3.34, 95% CI:1.48-7.54; P = 0.004) will significantly increase the occurrence of CRVT. However, there is no significant correlation between sex, congenital heart disease, bedridden state, sepsis, mechanical ventilation, anticoagulation therapy, insertion site (left), and CRVT.Our research results indicate that history of venous thrombosis, cancer, infection and multilumina are possible risk factors for CRVT, and corresponding preventive measures should be taken clinically.