scholarly journals Evaluating post-operative venous thromboembolism risk in urology patients using a validated risk assessment model

2021 ◽  
Vol 27 (1) ◽  
Author(s):  
Winston Paul René Padayachee ◽  
Mohamed Haffejee ◽  
Marietha Nel
Keyword(s):  
Risk Factors ◽  
Risk Assessment ◽  
Venous Thromboembolism ◽  
High Risk ◽  
Significant Risk ◽  
Assessment Model ◽  
Risk Category ◽  
Risk Assessment Model ◽  
Surgical Morbidity ◽  
Significant Difference

Abstract Background Venous thromboembolism (VTE) is an important cause of post-surgical morbidity and mortality. This study aimed to apply a validated risk assessment model to evaluate the risk of post-operative VTE in urology patients. Methods This prospective descriptive observational study used the Caprini risk assessment model to evaluate VTE risk in patients planned for elective urology surgery at a tertiary Johannesburg hospital from January to June 2020. Results Two hundred and twenty-six patients with a mean age of 52 years were evaluated for post-operative VTE risk. The population was generally overweight, with a mean BMI of 26.3 kg/m2. The mean Caprini score was 4.42, reflecting a population at high risk for post-operative VTE. There was no statistically significant difference between males and females in this regard. On average, participants had three risk factors for post-operative VTE. Fifteen per cent of all patients were at low risk for VTE, while 40.3% of participants were categorised as moderate risk. The category with the highest percentage of participants (44.7%) was the high-risk category (Caprini score ≥ 5). High-risk patients undergoing oncology surgery comprised 16.8% of the population, and these patients may require extended duration pharmacological thromboprophylaxis to prevent VTE. The most clinically significant risk factors for post-operative VTE included age, obesity, malignancy and HIV infection. Conclusion Venous thromboembolism may be difficult to diagnose, and clinicians may underestimate the risk for it to develop. Risk assessment models, such as the Caprini score, are objective and a practical tool to guide the application of thromboprophylaxis. The application of the Caprini RAM in the elective urological surgery population at Chris Hani Baragwanath Academic Hospital yields similar results to studies performed elsewhere on similar surgical populations. Further research is required to evaluate whether the actual incidence of VTE correlates with the risk assessment in this population. Clinician compliance with the use of RAMs as well as the corresponding recommendations for prophylaxis may need to be evaluated. A validated risk assessment model which accounts for procedure-specific risks in urology may be useful.

scholarly journals Application of the Caprini Risk Assessment Model for the Assessment of Risk Factors for Postoperative Venous Thromboembolism in the Surgery Department of Anosiala University Hospital

2021 ◽  
Vol 2 (3) ◽  
pp. 1-7
Author(s):  
Jean Baptiste Ramampisendrahova ◽  
Andriamanantsialonina Andrianony ◽  
Aina Andrianina Vatosoa Rakotonarivo ◽  
Mamisoa Bodohasina Rasamoelina ◽  
Eric Andriantsoa ◽  
...  
Keyword(s):  
Risk Factors ◽  
Risk Assessment ◽  
Venous Thromboembolism ◽  
Assessment Model ◽  
University Hospital ◽  
Risk Category ◽  
Risk Assessment Model ◽  
Moderate Risk ◽  
Risk Patients ◽  
Surgery Department

The purpose of this research is to ascertain the prevalence of postoperative venous thromboembolism in the Department of Surgery at Anosiala University Hospital and to identify risk factors for developing postoperative venous thromboembolism using the Caprini Risk Assessment Model. From December 2017 to October 2019, this was a 22-month prospective cohort research conducted at Anosiala University Hospital. It included all adult patients over the age of 18 who were operated on in an emergency or on a planned basis by the Department of Surgery. This research included 662 participants. Within 30 days after surgery, the risk of venous thromboembolism was 0.3 percent. According to the overall Caprini score, 25.2 percent of patients were classified as having a low risk of venous thromboembolism, 25.2 percent as having a moderate risk, 29.5 percent as having a high risk, and 20.1 percent as having the greatest risk. Patients in the highest risk category (scoring 5) had a substantially increased chance of having venous thromboembolism after surgery (p = 0.0007). Only major open surgery was related with a statistically significant increase in postoperative venous thromboembolism (p = 0.028). Age 75 years, elective arthroplasty, and hip, pelvic, or leg fractures were not linked with postoperative venous thromboembolism statistically significantly (p> 0.05). Our findings indicate that the Caprini risk assessment model might be used successfully to avoid postoperative venous thromboembolism in surgical patients in Madagascar, since patients in the highest risk category had a considerably increased chance of developing postoperative venous thromboembolism.

scholarly journals Risk Factors for Venous Thromboembolism in Hospitalized Patients in the Chinese Population

2018 ◽  
Vol 13 (1) ◽  
pp. 82-89 ◽  
Author(s):  
Chunling Wang ◽  
Fuping Cui ◽  
Junqiu Li ◽  
Xiangzhi Yuan ◽  
Jia Wang ◽  
...  
Keyword(s):  
Risk Factors ◽  
Risk Assessment ◽  
Venous Thromboembolism ◽  
High Risk ◽  
Chinese Population ◽  
Blood Clot ◽  
Hospitalized Patients ◽  
Assessment Model ◽  
Risk Assessment Model ◽  
Medical Patients

AbstractVenous thromboembolism (VTE) refers to the formation of a blood clot inside veins and has a high risk of inducing medical accidents. An effective risk assessment model will help screen high risk populations and prevent the occurrence of VTE. In this study, 287 VTE cases were collected and analyzed for risk factors in a Chinese population. The risks of VTE were evaluated using the Caprini and Padua models. Our results indicated that the Caprini model was more effective in evaluating VTE risk among hospitalized patients than the Padua model. As well, the Caprini model was more relevant in VTE risk assessment among surgery patients compared with internal medicine patients, while the Padua model showed no significant differences. In our studies, the most frequent risk factors included obesity, medical patients currently at bed rest, and severe lung disease. Our studies provide clinical support on selecting the suitable risk assessment model of VTE in the Chinese population.

scholarly journals The HAS-RISC Score for Venous Thromboembolism (VTE) Risk Stratification in Newly Diagnosed Multiple Myeloma Patients Starting Immunomodulatory Drugs (IMID)

Blood ◽  
2018 ◽  
Vol 132 (Supplement 1) ◽  
pp. 144-144 ◽  
Author(s):  
Ang Li ◽  
Qian V. Wu ◽  
Greg Warnick ◽  
Neil A Zakai ◽  
Edward N. Libby ◽  
...  
Keyword(s):  
Risk Factors ◽  
Risk Assessment ◽  
High Risk ◽  
Research Funding ◽  
Risk Group ◽  
High Risk Group ◽  
Assessment Model ◽  
Risk Assessment Model ◽  
Newly Diagnosed ◽  
Very High

Abstract Introduction: Patients with newly diagnosed multiple myeloma (MM) have high risk of venous thromboembolism (VTE) when starting initial treatment that contains immunomodulatory drugs (IMID) such as lenalidomide or thalidomide. The National Comprehensive Cancer Network (NCCN) guideline recommends primary anticoagulant thromboprophylaxis for the high-risk patients. However, it is challenging to risk-stratify patients without a validated risk model. We have conducted a retrospective cohort study using the SEER-Medicare (Surveillance, Epidemiology, and End Results) database to derive a new VTE risk assessment model. Methods: We selected all patients 66 or older with newly diagnosed MM 2007 to 2013. Patients were included if they had a prescription of IMID within twelve months of diagnosis and complete enrollment for fee-for-service and prescription drug coverage. We ascertained baseline demographics and VTE risk factors from the current NCCN guideline using validated codes. The VTE outcome was defined as either one inpatient or two outpatient claims at least 30 days apart in combination with an anticoagulant prescription within 90 days. All patients were followed from the date of IMID initiation until first VTE occurrence or death and were censored for disenrollment from Medicare, discontinuation of IMID (after a grace period of 90 days), autologous transplantation, or the end of claims data (12/31/2014). Cause specific Cox regression models were used for time to VTE analysis. For variable selection, all risk factors with p-value <0.10 were considered candidates for inclusion in the final multivariable regression model. VTE history, recent surgery, and anticoagulant exposure were forced into the model, regardless of significance testing. Integer points were assigned according to the beta coefficients and subsequent risk groups were created. The model's discrimination was validated internally by the bias-corrected Harrell's c statistic and the 95% confidence interval was estimated from 200 bootstrap samples. Results: We identified 2397 MM patients on IMID that met the study criteria. The median time on IMID treatment was 116 days (IQR 28-279). The mean age of patients was 74, 49% were female, 80% were White, 13% were Black, 6.5% were Asian. Only 13% of patients had concurrent anticoagulant exposure (11% warfarin, 2% LMWH, 1% DOAC) with a median duration of 116 days (IQR 42-315 days). In the multivariable model built from candidate covariates, we identified history of VTE, recent surgery, cytotoxic (non-bortezomib) chemotherapy, higher dose dexamethasone, older age, and Black race, as important risk factors. Asian race and LMWH/DOAC use were associated with lower VTE risk (Table 1). We derived a risk assessment model that stratified patients into 2 prognostic risk groups (Table 1): 25% (n=581) in the very high-risk group (score 2 to 7), 75% (n=1816) in the standard-risk group (score -3 to 1). The incidence of VTE at 3 months and 6 months were 9.5% and 16.3% in the very high-risk group compared to 3.7% and 6.3% in the standard-risk group with a resulting hazard ratio of 2.73 (p<0.001) (Figure 1). The bias-corrected Harrell's c statistic for the product index was 0.63 (0.59-0.68). Conclusions: We have derived a VTE risk assessment model specifically for patients with MM starting IMID therapy. The HAS-RiSC score combines 7 clinical risk factors - History of VTE, Age 80+, Surgery within last 90 days, Race Black, race Asian, Steroid use, and Chemotherapy - into a simplified VTE risk assessment model that identifies a subgroup of patients at very high risk for VTE. External validation of this risk assessment model is currently in progress. Disclosures Garcia: Daiichi Sankyo: Research Funding; Incyte: Research Funding; Janssen: Consultancy, Research Funding; Pfizer: Consultancy; Retham Technologies LLC: Consultancy; Shingoi: Consultancy; Portola: Research Funding; Bristol Meyers Squibb: Consultancy; Boehringer Ingelheim: Consultancy. Lyman:Amgen: Other: Research support; Generex Biotechnology: Membership on an entity's Board of Directors or advisory committees; Halozyme; G1 Therapeutics; Coherus Biosciences: Consultancy.

scholarly journals Venous Thromboembolism Prophylaxis in Medical Intensive Care Unit: An Audit

2021 ◽  
Author(s):  
Basant Kumar Pathak ◽  
P Harikrishnan ◽  
Manish Manrai
Keyword(s):  
Risk Assessment ◽  
Intensive Care Unit ◽  
Intensive Care ◽  
Venous Thromboembolism ◽  
High Risk ◽  
Medical Records ◽  
Assessment Model ◽  
P Value ◽  
Vte Prophylaxis ◽  
Significant Difference

Introduction: Venous Thromboembolism (VTE) is a major cause of morbidity and mortality in patients admitted to healthcare facilities. This can be prevented by giving thromboprophylaxis to patients after assessing the risk for VTE. This however is not being routinely done leading to underuse of thromboprophylaxis due to inadequate practice of risk assessment. Aim: To conduct an audit of VTE prophylaxis in Intensive Care Unit (ICU) based on Padua score and International Medical Prevention Registry on Venous Thromboembolism (IMPROVE) Risk Assessment Model (VTE RAM). Materials and Methods: This was a cross-sectional observational study and the data was collected from medical records of patients retrospectively who were admitted to medical ICU between October 2019 and December 2019. Based on medical records risk assessment was done using the Padua score and IMPROVE VTE RAM. The prophylaxis given to patients was scrutinised for appropriateness based on American Society of Haematology (ASH) guidelines. The two validated scores Padua score and IMPROVE VTE RAM were compared with each other for any significant difference in the risk assessment made using Chi-square test and p-value <0.05 were considered significant. Results: Out of the 176 patients risk assessment was not done in any patient. On calculating the Padua score, 149 patients (84.66%) were in high risk for VTE (Padua Score ≥4) and amongst them only 76 (51%) patients received thromboprophylaxis. On calculating the IMPROVE VTE RAM score, 137 patients (77.84%) were in moderate or high risk for VTE requiring prophylaxis and amongst them only 76 (55.47%) patients received thromboprophylaxis. The accuracy of clinician’s judgement without risk assessment was 58.52% (95% CI: 65.80%-51.24%) and 64.20% (95% CI: 71.28%-57.12%) as compared to risk assessment by Padua score and IMPROVE VTE RAM, respectively. There was no significant difference between IMPROVE VTE RAM and Padua score with respect to risk assessment for VTE (p-value of 0.10). Conclusion: The practice of VTE prophylaxis is grossly inadequate and there is a requirement to sensitise the healthcare providers about the importance of risk assessment for VTE.

scholarly journals The Application of the ThroLy Risk Assessment Model to Predict Venous Thromboembolism in Patients with Diffuse Large B-Cell Lymphoma

2021 ◽  
Vol 27 ◽  
pp. 107602962110459
Author(s):  
Hikmat Abdel-Razeq ◽  
Mohammad Ma’koseh ◽  
Asem Mansour ◽  
Rayan Bater ◽  
Rula Amarin ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Venous Thromboembolism ◽  
High Risk ◽  
Cell Lymphoma ◽  
B Cell Lymphoma ◽  
Risk Groups ◽  
Assessment Model ◽  
Risk Assessment Model ◽  
Large B Cell Lymphoma ◽  
Large B Cell

Background Patients with aggressive lymphomas are at higher risk for venous thromboembolism (VTE). ThroLy is a risk assessment model (RAM) derived to predict the occurrence of VTE in various types of lymphomas. In this study, we assess the clinical application of ThroLy RAM in a unified group of patients with diffuse large B-cell lymphoma (DLBCL). Methods Hospital databases were searched for patients with DLBCL and radiologically-confirmed VTE. Items in the ThroLy RAM, including prior VTE, reduced mobility, obesity, extranodal disease, mediastinal involvement, neutropenia and hemoglobin < 10.0 g/dL, were retrospectively reviewed. Results A total of 524 patients, median age 49 (range: 18-90) years were included. Patients had high disease burden; 57.3% with stage III/IV and 34.0% with bulky disease. All were treated on unified guidelines; 63 (12.0%) had primary refractory disease. Venous thromboembolic events were reported in 71 (13.5%) patients. Among 121 patients with high (> 3) ThroLy score, 22.3% developed VTE compared to 8.4% and 12.4% in those with low and intermediate risk scores, respectively ( P = .014). Simplifying the ThroLy model into two risk groups; high-risk (score ≥ 3) and low risk (score < 3) can still segregate patients; VTE developed in 44 (17.2%) high-risk patients ( n = 256) compared to 27 (10.1%) in the low-risk group ( n = 268), P = .038. Neutropenia, a component of the ThroLy, was encountered in only 14 (2.7%) patients. Conclusions ThroLy RAM can identify patients with DLBCL at high risk for VTE. Model can be modified by dividing patients into two, rather than three risk groups, and further simplified by omitting neutropenia.

scholarly journals Potential Overuse of Primary Thromboprophylaxis in Medical Inpatients at Low Risk of Venous Thromboembolism

Blood ◽  
2019 ◽  
Vol 134 (Supplement_1) ◽  
pp. 3385-3385
Author(s):  
Mia Djulbegovic ◽  
Kevin Chen ◽  
Soundari Sureshanand ◽  
Sarwat Chaudhry
Keyword(s):  
Risk Assessment ◽  
Venous Thromboembolism ◽  
High Risk ◽  
Clinical Pharmacy ◽  
Low Risk ◽  
Assessment Model ◽  
Morbidity And Mortality ◽  
Risk Assessment Model ◽  
Medical Overuse ◽  
Medical Inpatients

Background: Venous thromboembolism (VTE) is a common cause of morbidity and mortality in the United States. Annually, up to 1 in 120 people develop VTE, approximating the incidence of stroke. Given that hospitalization and acute medical illness increase the risk of VTE, hospital-associated VTE represents a preventable cause of morbidity and mortality. Accordingly, accreditation and regulatory agencies endorse inpatient pharmacologic VTE prophylaxis (PPX) as a quality measure. In order to raise rates of PPX prescribing, many health systems have adopted a default approach to electronic ordering, in which clinicians must "opt-out" of PPX prescription. However, this strategy may cause medical overuse and avoidable harms, which has prompted the American Society of Hematology (ASH) to recommend a risk-adapted approach to PPX. One risk model endorsed by ASH is the IMPROVE-VTE risk assessment model, which can identify patients who are at low risk for VTE and therefore may not warrant pharmacologic PPX. We therefore sought to compare the actual practice of PPX prescribing to the guideline-recommended strategy according the IMPROVE-VTE model in a large, contemporary population of medical inpatients. Methods: In this observational study, we used electronic health record data to identify adult, medical inpatients hospitalized on general medical and subspecialty services at Yale-New Haven Hospital from 1/1/14-12/31/18. We excluded patients who were pregnant, admitted for VTE, taking full dose anticoagulation on admission, admitted for bleeding, or had a platelet count of < 50,000/µL. For each patient, we calculated the IMPROVE-VTE score using the previously validated model weights: 3 points for a prior history of VTE; 2 points for known thrombophilia, lower limb paralysis, or active cancer; 1 point for immobilization, admission to the intensive care unit, or age ≥ 60 years. For each component other than age, we used ICD-9 and ICD-10 codes that were billed either prior to or upon admission to determine the presence of these risk factors. In order to simulate the decision to initiate PPX on hospital admission, we calculated each patient's IMPROVE-VTE score at the time of admission. In accordance with the ASH guidelines, we used an IMPROVE-VTE score of <2 to differentiate patients at low-risk of hospital-associated VTE from those at high-risk. We used inpatient medication order history data to determine receipt of pharmacologic PPX. We used χ2 testing to compare the relative frequency of PPX prescribing on admission between patients at low-risk and high-risk for VTE. Results: We identified 135,288 medical inpatients during the study period, of whom 99,380 met inclusion criteria. The average age was 63.5 years-old (standard deviation 18 years); 51% of patients were female; 68% of patients were white. Of all the included patients, 81% received pharmacologic prophylaxis; of these patients, 78% received unfractionated heparin subcutaneously and 22% received low molecular weight heparin subcutaneously. Among all hospitalized patients, 78% had an IMPROVE-VTE score of <2 (32% had a score of 0 and 46% had a score of 1). Among these patients at low risk of hospital-associated VTE, 81% received pharmacologic PPX. Differences in prophylaxis rates between patients at low vs high risk of VTE were statistically significant (p<0.001). Conclusion: In this contemporary cohort of adult, medical inpatients, >80% of patients who were at low risk of hospital-associated VTE received pharmacologic PPX, representing a group in whom PPX may be unnecessary. Using a risk-adapted approach such as the IMPROVE-VTE risk assessment model, rather than default PPX ordering, may reduce medical overuse and avoidable harms. Disclosures Chaudhry: CVS State of CT Clinical Pharmacy Program: Other: Paid Reviewer for CVS State of CT Clinical Pharmacy Program.

Risk assessment model for venous thromboembolism in hospitalized surgical and non-surgical patients in the 4th Hungarian Antithrombotic Guidelines entitled “Diminution and Treatment of Venous Thromboembolism”

2010 ◽  
Vol 151 (34) ◽  
pp. 1365-1374 ◽  
Author(s):  
Marianna Dávid ◽  
Hajna Losonczy ◽  
Miklós Udvardy ◽  
Zoltán Boda ◽  
György Blaskó ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Venous Thromboembolism ◽  
Assessment Model ◽  
Surgical Patients ◽  
Risk Assessment Model

A kórházban kezelt sebészeti és belgyógyászati betegekben jelentős a vénásthromboembolia-rizikó. Profilaxis nélkül, a műtét típusától függően, a sebészeti beavatkozások kapcsán a betegek 15–60%-ában alakul ki mélyvénás trombózis vagy tüdőembólia, és az utóbbi ma is vezető kórházi halálok. Bár a vénás thromboemboliát leggyakrabban a közelmúltban végzett műtéttel vagy traumával hozzák kapcsolatba, a szimptómás thromboemboliás események 50–70%-a és a fatális tüdőembóliák 70–80%-a nem a sebészeti betegekben alakul ki. Nemzetközi és hazai felmérések alapján a nagy kockázattal rendelkező sebészeti betegek többsége megkapja a szükséges trombózisprofilaxist. Azonban profilaxis nélkül marad a rizikóval rendelkező belgyógyászati betegek jelentős része, a konszenzuson alapuló nemzetközi és hazai irányelvi ajánlások ellenére. A belgyógyászati betegek körében növelni kell a profilaxisban részesülők arányát és el kell érni, hogy trombózisrizikó esetén a betegek megkapják a hatásos megelőzést. A beteg trombóziskockázatának felmérése fontos eszköze a vénás thromboembolia által veszélyeztetett betegek felderítésének, megkönnyíti a döntést a profilaxis elrendeléséről és javítja az irányelvi ajánlások betartását. A trombózisveszély megállapításakor, ha nem ellenjavallt, profilaxist kell alkalmazni. „A thromboemboliák kockázatának csökkentése és kezelése” című, 4. magyar antithromboticus irányelv felhívja a figyelmet a vénástrombózis-rizikó felmérésének szükségességére, és elsőként tartalmazza a kórházban fekvő belgyógyászati és sebészeti betegek kockázati kérdőívét. Ismertetjük a kockázatbecslő kérdőíveket és áttekintjük a kérdőívekben szereplő rizikófaktorokra vonatkozó bizonyítékokon alapuló adatokat.

scholarly journals An Alternative Risk Assessment Model of Urban Waterlogging: A Case Study of Ningbo City

2021 ◽  
Vol 13 (2) ◽  
pp. 826
Author(s):  
Meiling Zhou ◽  
Xiuli Feng ◽  
Kaikai Liu ◽  
Chi Zhang ◽  
Lijian Xie ◽  
...  
Keyword(s):  
Risk Assessment ◽  
High Risk ◽  
Assessment Model ◽  
Risk Assessments ◽  
Risk Assessment Model ◽  
Risk Area ◽  
The North ◽  
Coastal Cities ◽  
Risk Areas ◽  
The City

Influenced by climate change, extreme weather events occur frequently, and bring huge impacts to urban areas, including urban waterlogging. Conducting risk assessments of urban waterlogging is a critical step to diagnose problems, improve infrastructure and achieve sustainable development facing extreme weathers. This study takes Ningbo, a typical coastal city in the Yangtze River Delta, as an example to conduct a risk assessment of urban waterlogging with high-resolution remote sensing images and high-precision digital elevation models to further analyze the spatial distribution characteristics of waterlogging risk. Results indicate that waterlogging risk in the city proper of Ningbo is mainly low risk, accounting for 36.9%. The higher-risk and medium-risk areas have the same proportions, accounting for 18.7%. They are followed by the lower-risk and high-risk areas, accounting for 15.5% and 9.6%, respectively. In terms of space, waterlogging risk in the city proper of Ningbo is high in the south and low in the north. The high-risk area is mainly located to the west of Jiangdong district and the middle of Haishu district. The low-risk area is mainly distributed in the north of Jiangbei district. These results are consistent with the historical situation of waterlogging in Ningbo, which prove the effectiveness of the risk assessment model and provide an important reference for the government to prevent and mitigate waterlogging. The optimized risk assessment model is also of importance for waterlogging risk assessments in coastal cities. Based on this model, the waterlogging risk of coastal cities can be quickly assessed, combining with local characteristics, which will help improve the city’s capability of responding to waterlogging disasters and reduce socio-economic loss.

AB0809 PADUA PREDICTION SCORE COMBINED WITH SERUM ALBUMIN FOR THE IDENTIFICATION OF VENOUS THROMBOEMBOLISM OF HOSPITALIZED PATIENTS IN THE DEPARTMENT OF RHEUMATOLOGY

2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 1429.1-1429
Author(s):  
Q. Peng ◽  
L. Long ◽  
J. Liu
Keyword(s):  
Risk Factors ◽  
Venous Thromboembolism ◽  
Serum Albumin ◽  
Risk Group ◽  
Assessment Model ◽  
Prediction Score ◽  
Risk Assessment Model ◽  
Systemic Autoimmune Diseases ◽  
Independent Risk Factors ◽  
The Difference

Background:Venous thromboembolism (VTE) includes thrombotic disease of venous system, but primarily includes lower extremity deep vein thrombosis (DVT) and pulmonary embolism (PE). Population-based epidemiological studies have shown an association between systemic autoimmune diseases and VTE[1]. The Padua prediction score(PPS) is a new 20-point risk assessment model proposed by Professor Barbar et al[2] in 2010. A large number of researches have shown that low serum albumin concentration is associated with an increased risk of VTE [3],but there is a lack of studies on serum albumin in VTE, and there are no reports on PPS in rheumatology inpatients.Objectives:To investigate the status of VTE in patients in the department of rheumatology, and to explore the value of PPS combined with serum albumin in the identification of VTE in this patient population.Methods:Baseline data of inpatients in rheumatology department were collected at Sichuan Provincial People’s Hospital from September 2018 to September 2020. Occurrence of VTE was compared between high and low risk groups. PPSs were analyzed in VTE and non-VTE patients. Multivariate logistic regression was used to analyze the independent risk factors of VTE. The receiver operating characteristic curve was used to evaluate the probablity of value of rheumatic inpatients with VTE assessed by PPS,serum albumin and PPS with serum albumin. P<0.05 indicates that the difference was statistically significant.Results:A total of 2282 patients were included in this study, and 50(2.2%) had symptomatic VTE. Among the symptomatic VTE cases,38(1.6%) had DVT only,8(0.4%) had PE only, and 4(0.2%) were diagnosed with DVT and PE. PPSs in VTE and non-VTE groups were 3.00(2.00~6.00) and2.00(1.00~2.00) respectively (P< 0.05). One hundred and eighty-eight cases was divided into high-risk group of VTE (PPS≥4), while 2094 cases (PPS<4) were in the low-risk group. Logistic regression analysis showed that known thrombophilic condition, history of VTE, reduced mobility, and D-dimer were independent risk factors of VTE in rheumatology patients, the odd ration(OR) values were 161.90, 26.08, 8.73,and1.04. Serum albumin was the independent protection factor [OR= 0.92(95%CI:0.87~0.98)]. The AUC of PPS model, serum albumin model and the combined predictive model were 0.77, 0.75, 0.84, respectively. The difference between the combined prediction model and PPS model was statistically significant (Z=3.813, P<0.05). The optimal sensitivity of PPS and serum albumin models is 60%, 82%, respectively, and the optimal specificity of is 82.5%,58.6%, respectively. The combination model corresponds to a sensitivity of 62% and a specificity of 90.4%.Conclusion:The incidence of symptomatic VTE was relatively higher in hospitalized patients in rheumatology department. Serum albumin was the protective factor. The combination of albumin and PPS can improve the accuracy of screening for VTE in rheumatology in-patients.References:[1]Tamaki H,Khasnis A.Venous thromboembolism in systemic autoimmune diseases: A narrative review with emphasis on primary systemic vasculitides.[J].Vasc Med, 2015, 20: 369-76.[2]Barbar S, Noventa F, Rossetto V,et al. A risk assessment model for the identification of hospitalized medical patients at risk for venous thromboembolism: the Padua Prediction Score[J]. J Thromb Haemost,2010,8(11):2450–2457.[3]Kunutsor SK,Seidu S,Katechia DT et al. Inverse association between serum albumin and future risk of venous thromboembolism: interrelationship with high sensitivity C-reactive protein.[J].Ann Med, 2018, 50: 240-248.Disclosure of Interests:None declared

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