A retrospective analysis of risk factors associated with catheter-related thrombosis: a single-center study

Abstract Background: Catheter-related thrombosis (CRT) may lead to catheter infections and failure, further deep venous thrombosis (DVT), and pulmonary embolism (PE). Recognizing the risk factors for CRT is extremely important to inform the development of catheter-nursing guidelines.Methods: Data were collected from a total of 1532 patients who had undergone venous catheterization, including indwelling catheterization from March 19 to March 30, 2019 in Sun Yat-sen Memorial Hospital. The factors for which data were to be collected included the patients’ physical characteristics, catheter-associated factors, and factors associated with catheter nursing. Logistic regression analysis, the chi-square test, Fisher’s exact test, and the t-test were used to analyze the data. Results: Of the 1532 patients studied, 28 developed intraductal thrombi, and of the factors analyzed, tumor, a catheterization history, a history of thrombophilia, surgery during the week before catheterization, the catheterization duration were significant risk factors associated with CRT (all P < 0.05). There were no significant associations between the catheter brand, the number of lumens, the insertion direction, or the factors associated with catheter nursing and CRT (all P > 0.05). Anticoagulation therapy significantly decreases the risk of CRT ( P < 0.05 ). Conclusion: Tumor, a history of thrombophilia, a history of catheterization, surgery during the week before catheterization, and catheterization duration were associated with increased risks of CRT. Prophylactic anticoagulation is effective for preventing and treating CRT. Our study incorporates clear and systematic risk factors associated with CRT. The results are different from those of previous studies.