[Application of Padua prediction score and serum albumin level in evaluating venous thromboembolism in rheumatic inpatients].

OBJECTIVE:To investigate the status of venous thromboembolism (VTE) in rheumatic inpatients, and to explore the efficiency of Padua prediction score (PPS) in the patient population. In addition, to analyze the relationship between serum albumin and VTE in rheumatic inpatients. METHODS:Data of inpatients with rheumatology were retrospectively collected and analyzed at Sichuan Provincial People's Hospital from September 2018 to September 2019. Occurrence of VTE was compared between high (PPS≥4) and low (PPS < 4) risk groups. PPS were analyzed in the VTE and non-VTE patients. Multivariate Logistic regression model was used to analyze the risk factors in PPS and the relationship between serum albumin and VTE. RESULTS:A total of 1 547 patients were included in this study, and 27 (1.7%) had symptomatic VTE. Among the symptomatic VTE cases, 19 (1.2%) had deep vein thrombosis (DVT) only, 6 (0.4%) had pulmonary thromboembolism (PTE) only, and 2 (0.1%) were diagnosed with DVT and PTE. PPS in the VTE and non-VTE groups were 3.33±1.78 and 1.80±0.97 respectively (P < 0.05).The number of patients with PPS≥4 in the VTE group and non-VTE group was 37.0% and 4.3% respectively (P < 0.01). The average serum albumin level in the VTE group was lower than that in non-VTE group [(29.79±6.36) g/L vs. (35.17±6.31) g/L, P < 0.001]. Seventy-six cases was divided into high-risk group of VTE, while 1 471 cases were in the low-risk group, and the incidence of VTE was 13.2% and 1.2% respectively (P < 0.001). Logistic regression analysis showed that ongoing hormonal treatment, age≥70 years, trauma and/or surgery ≤30 d, reduced mobility and previous VTE were risk factors of VTE in the rheumatology patients, OR values were 7.11, 7.07, 3.40, 2.40 and 2.00, respectively. Lower serum albumin level was the risk factor of VTE in the rheumatology patients [OR=0.88 (95%CI: 0.82-0.94)]. CONCLUSION:The incidence of VTE was relatively higher in the hospitalized patients in Department of Rheumatology and Immunology. Glucocorticoid therapy was the highest risk factor of VTE and lower serum albumin level also was the risk factor. Although the PPS can reflect the risk of VTE in rheumatic inpatients to some extent, its effectiveness is limited. PPS can be optimized for quantitative VTE risk assessment of rheumatic inpatients in the future.