ENDORSE Publications

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Epidemiologic International Day for the Evaluation of Patients at Risk of Venous Thrombosis in the Acute Hospital Care Setting (ENDORSE) (2006-2007) was a multinational, observational, cross-sectional survey which included 358 representative acute care hospitals located in 32 countries. The primary objectives of this survey were to identify patients at risk for venous thromboembolism (VTE) among medical and surgical patients hospitalized in representative hospitals and to determine the proportion of at-risk hospital patients who received effective types of VTE prophylaxis throughout the world. Approximately 90,000 patients in eligible wards were screened and assessed. This collection showcases publications about the project and project research.

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  • Publication
    Venous thromboembolism risk and prophylaxis in the acute hospital care setting (ENDORSE study): a multinational cross-sectional study
    (2008-02-05) Cohen, Alexander T.; Tapson, Victor F.; Bergmann, Jean-Francois; Goldhaber, Samuel Z.; Kakkar, Ajay K.; Deslandes, Bruno; Huang, Wei; Zayaruzny, Maksim; Emery, Leigh; Anderson, Frederick A. Jr.; ENDORSE Investigators; Center for Outcomes Research
    BACKGROUND: Information about the variation in the risk for venous thromboembolism (VTE) and in prophylaxis practices around the world is scarce. The ENDORSE (Epidemiologic International Day for the Evaluation of Patients at Risk for Venous Thromboembolism in the Acute Hospital Care Setting) study is a multinational cross-sectional survey designed to assess the prevalence of VTE risk in the acute hospital care setting, and to determine the proportion of at-risk patients who receive effective prophylaxis. METHODS: All hospital inpatients aged 40 years or over admitted to a medical ward, or those aged 18 years or over admitted to a surgical ward, in 358 hospitals across 32 countries were assessed for risk of VTE on the basis of hospital chart review. The 2004 American College of Chest Physicians (ACCP) evidence-based consensus guidelines were used to assess VTE risk and to determine whether patients were receiving recommended prophylaxis. FINDINGS: 68 183 patients were enrolled; 30 827 (45%) were categorised as surgical, and 37 356 (55%) as medical. On the basis of ACCP criteria, 35 329 (51.8%; 95% CI 51.4-52.2; between-country range 35.6-72.6) patients were judged to be at risk for VTE, including 19 842 (64.4%; 63.8-64.9; 44.1-80.2) surgical patients and 15 487 (41.5%; 41.0-42.0; 21.1-71.2) medical patients. Of the surgical patients at risk, 11 613 (58.5%; 57.8-59.2; 0.2-92.1) received ACCP-recommended VTE prophylaxis, compared with 6119 (39.5%; 38.7-40.3; 3.1-70.4) at-risk medical patients. INTERPRETATION: A large proportion of hospitalised patients are at risk for VTE, but there is a low rate of appropriate prophylaxis. Our data reinforce the rationale for the use of hospital-wide strategies to assess patients' VTE risk and to implement measures that ensure that at-risk patients receive appropriate prophylaxis.
  • Publication
    [Results of ENDORSE study in Hungary. Multinational, cross-sectional study to assess the prevalence of venous thromboembolism risk and prophylaxis in acute hospital care setting]
    (2008-11-02) Losonczy, Hajna; Tar, Attila; ENDORSE Investigators- Hungary; Center for Outcomes Research
    Information about the risk of venous thromboembolism and prophylactic practices around the world is limited. ENDORSE (Epidemiologic International Day for the Evaluation of Patients at Risk for Venous Thromboembolism in the Acute Hospital Care Setting) study is a multinational cross-sectional survey designed to assess the prevalence of venous thromboembolism (VTE) risk in the acute hospital care setting, and to determine the proportion of at-risk patients who receive appropriate prophylaxis. All hospital inpatients aged 40 years or above admitted to a medical ward, or those aged 18 years or above admitted to a surgical ward, in 358 randomly selected hospitals across 32 countries were assessed for risk of VTE on the basis of hospital chart review. The 2004 American College of Chest Physicians evidence-based consensus guidelines were used to assess venous thromboembolism risk and to determine whether patients were receiving recommended prophylaxis. Nine Hungarian centers were included in the international survey, and a total of 1300 patients were assessed for thrombosis risk in Hungary. Of these patients 39.9% (N=519) were judged at risk for VTE, including 58.2% (N=253) surgical and 30.8% (N=266) medical patients. 56.6% (N=294) of the total at-risk patients received ACCP-recommended VTE prophylaxis. Among major surgery patients 86.6% (N=219) received recommended prophylaxis compared with 28.2% (N=75) of medical patients. In Hungary more than two-thirds of at-risk hospitalized medical patients did not receive appropriate prophylaxis. ENDORSE results reinforced that a large proportion of hospitalized surgical and medical patients are at risk for VTE worldwide as well as in Hungary. The rate of at-risk patients receiving appropriate prophylaxis should be urgently increased.
  • Publication
    Venous thromboembolism risk and prophylaxis in the acute hospital care setting--results of the ENDORSE study in Poland
    (2008-10-31) Musial, Jacek; Sydor, Wojciech J.; ENDORSE Investigators-Poland; Center for Outcomes Research
    INTRODUCTION: Venous thromboembolism (VTE) is the most common preventable cause of in-hospital death. However, the risk of VTE and prophylaxis practices in Polish hospitals are not known. OBJECTIVES: The ENDORSE study in Poland was part of the global cross-sectional Epidemiologic International Day for the Evaluation of Patients at Risk for Venous Thromboembolism in the Acute Hospital Care Setting survey with the objective to assess the prevalence of VTE risk in acutely ill medical and surgical patients and to determine the proportion of at-risk patients who receive recommended prophylaxis. PATIENTS AND METHODS: In 10 non-academic Polish hospitals, a chart review was performed in all inpatients aged 40 or older admitted to medical wards, and in patients at the age of > or = 18 admitted to surgical wards. The VTE risk and recommended prophylaxis were assessed according to the 2004 American College of Chest Physicians (ACCP) guidelines. RESULTS: The study enrolled 2673 patients (1092 in surgical wards, 1581 in medical wards). Out of these, 1111 were judged to be at risk for VTE (597 surgical patients, 514 medical patients). Only 51.8% of all at-risk patients received ACCP-recommended VTE prophylaxis (54.7% of surgical patients, 32.5% of medical patients). CONCLUSIONS: In Polish hospitals more than 40% of patients hospitalized for acute illness are at risk of VTE, but only a small proportion of them receives appropriate prophylaxis. These results call for decisive actions to ensure that at-risk patients receive recommended VTE prophylaxis.
  • Publication
    Impact of Thromboprophylaxis across the US Acute Care Setting
    (2015-03-27) Huang, Wei; Anderson, Frederick A. Jr.; Rushton-Smith, Sophie K.; Cohen, Alexander T.; Center for Outcomes Research
    BACKGROUND: The risk of venous thromboembolism (VTE) can be reduced by appropriate use of anticoagulant prophylaxis. VTE prophylaxis does, however, remain substantially underused, particularly among acutely ill medical inpatients. We sought to evaluate the clinical and economic impact of increasing use of American College of Chest Physicians (ACCP)-recommended VTE prophylaxis among medical inpatients from a US healthcare system perspective. METHODS AND FINDINGS: In this retrospective database cost-effectiveness evaluation, a decision-tree model was developed to estimate deaths within 30 days of admission and outcomes attributable to VTE that might have been averted by use of low-molecular-weight heparin (LMWH) or unfractionated heparin (UFH). Incremental cost-effectiveness ratio was calculated using "no prophylaxis" as the comparator. Data from the ENDORSE US medical inpatients and the US nationwide Inpatient Sample (NIS) were used to estimate the annual number of eligible inpatients who failed to receive ACCP-recommended VTE prophylaxis. The cost-effectiveness analysis indicated that VTE-prevention strategies would reduce deaths by 0.5% and 0.3%, comparing LMWH and UFH strategies with no prophylaxis, translating into savings of $50,637 and $25,714, respectively, per death averted. The ENDORSE findings indicated that 51.1% of US medical inpatients were at ACCP-defined VTE risk, 47.5% of whom received ACCP-recommended prophylaxis. By extrapolating these findings to the NIS and applying cost-effectives analysis results, the full implementation of ACCP guidelines would reduce number of deaths (by 15,875 if using LMWH or 10,201 if using UFH), and was extrapolated to calculate the cost reduction of $803M for LMWH and $262M for UFH. CONCLUSIONS: Efforts to improve VTE prophylaxis use in acutely ill inpatients are warranted due to the potential for reducing VTE-attributable deaths, with net cost savings to healthcare systems.
  • Publication
    [Venous thromboembolism risk and antithrombotic prophylaxis among patients admitted to Spanish hospitals (ENDORSE study)]
    (2009-06-19) Rodriguez, Nieto; Antonio, Jose; ENDORSE Investigators; Center for Outcomes Research
    BACKGROUND AND OBJECTIVES: The proportion of patients at risk of venous thromboembolism (VTE) in Spanish hospitals and, among those, the proportion who receive prophylaxis are not well known. The objective of this study was to obtain this information by means of the analysis of data from the Spanish centres that participated in the international ENDORSE study. METHODS: Cross-sectional study in 20 Spanish hospitals. VTE risk factors and VTE prophylaxis were assessed in all hospital inpatients, aged 18 years or over, admitted to a surgical ward, and 40 years or over admitted to a medical ward. The 7th Conference of the American College of Chest Physicians (ACCP) guidelines and recommendations were used as a reference to assess risk categories and the prophylaxis given to patients. RESULTS: 6.554 hospital beds were assessed, and 3.809 inpatients were enrolled; 2.069 (67,5%) were medical and 996 (32,5%) surgical. Based on the ACCP criteria, 1.878 (61,3%) were at risk for VTE, 1.140 (55,1%) were medical and 738 (74,1%) were surgical. According to the ACCP guidelines and recommendations, 731 medical patients at risk of VTE (64,1%, 95% CI 61,3%-66,9%) received appropriate prophylaxis, as compared to 605 (82%; 95% CI 79,2%-84,8%) surgical patients (p<0,001). CONCLUSIONS: VTE prophylaxis in the Spanish centres was more common in surgical patients than in medical patients. Nevertheless, it is still necessary to extend the VTE prophylaxis to a significant number of patients (29%) at high risk of VTE, particularly in medical wards.
  • Publication
    Swiss results from a global observational study of venous thromboembolism risk and prophylaxis use in the acute care hospital setting: analysis from the ENDORSE study
    (2009-10-31) Chopard, Pierre; Spirk, David; Beer, Hans-Jurg; Peter, Jurg; Brunner, Brigitte; Bounameaux, Henri; Dorfller-Melly, Janine; Center for Outcomes Research
    BACKGROUND: The aim of the present analysis from the epidemiologic international day for the evaluation of patients at risk for venous thromboembolism (VTE) in the acute hospital care setting (ENDORSE) study was to evaluate the prevalence of VTE risk in acute care hospitals and the proportion of at-risk medical and surgical patients who receive recommended prophylaxis in Switzerland. METHODS: All patients (age >or=40 years) admitted to a medical ward or those (age >or=18 years) admitted to a surgical ward in ten randomly selected Swiss hospitals were assessed for risk of VTE. The 2004 American College of Chest Physicians (ACCP) evidence-based consensus guidelines were used to assess VTE risk and to determine whether patients were receiving recommended thromboprophylaxis. RESULTS: 2000 patients were eligible; of these 1153 (58%) were in surgical wards, and 847 (42%) in medical wards. According to the ACCP criteria, the proportion of surgical patients at VTE risk was similar in Switzerland (68%, between hospital range 48-86%) in comparison to the global ENDORSE study (64%) (p = 0.296). The rate of at-risk medical patients was lower in Switzerland (21%, range 3-44%) than in the global study (42%) (p <0.001). The proportion of at-risk surgical patients with ACCP-recommended VTE prophylaxis was higher in Switzerland (81%, between-hospital range 76-93%) than in the global study (59%) (p <0.001). Among medical patients at risk, the use of recommended thromboprophylaxis was higher in Switzerland (61%, between-hospital range 0-84%) than in the global ENDORSE (40%) (p <0.001). However 56% of the patients with cancer, 41% with major trauma, and 29% undergoing vascular surgery did not receive any recommended prophylaxis. Among surgical patients at risk, the use of ACCP-recommended prophylaxis was lower in academic (77%) vs. non-academic (86%) institutions (p = 0.0025). CONCLUSIONS: In Switzerland, although the rate of recommended thromboprophylaxis is higher than in many countries, it is still improvable in medical patients at risk according to the ACCP guidelines. Consequently, hospital wide strategies for systematic risk factor assessment and implementation of practical tools to ensure appropriate use of prophylaxis in patients at VTE risk are required.
  • Publication
    [Thromboembolic risk and prophylaxis in hospitalized surgical and internal medicine patients. German results of the international ENDORSE study]
    (2009-10-15) Zotz, R. B.; Kauschat-Bruning, D.; Bramlage, P.; ENDORSE Investigators; Center for Outcomes Research
    BACKGROUND AND OBJECTIVES: Venous thromboembolism (VTE) leads to an increased morbidity in hospitalized patients. This multinational cross-sectional survey was designed to assess the prevalence of VTE risk factors and to determine the proportion of at-risk patients who receive effective VTE-prophylaxis. The results of the 16 participating German hospitals of the study are presented and compared with the international results. PATIENTS AND METHODS: All hospital inpatients aged >or= 40 years admitted to a medical ward and all surgical inpatients aged >or= 18 years were enrolled. The American College of Chest Physicians (ACCP) guidelines (2004) were applied to assess VTE risk and to determine whether patients were receiving recommended VTE prophylaxis. RESULTS: Overall, 2,370 patients were enrolled: 1,210 (51 %) were categorised as surgical and 1,160 (49 %) as acute medically ill. 838 (69 %) of surgical and 479 (41 %) of medical patients were judged to be at risk for VTE. Of the surgical patients at risk, 772 (92 %) received ACCP-recommended VTE prophylaxis, compared with 337 (70 %) medical patients at risk of VTE. Low-molecular weight heparins were most frequently used. CONCLUSIONS: In total, in comparison to other countries, Germany has a leading position in the implementation of international guidelines with regard to VTE prophylaxis. Whereas in a surgical ward effective VTE prophylaxis is consistently standard care, in the medical indications there is still room for improvement in terms of stratification of VTE risk and corresponding VTE-prophylaxis.
  • Publication
    Venous thromboembolism risk and prophylaxis in the acute hospital care setting-results of the Endorse study in Tunisia
    (2011-10-01) Jerbi, Zouheir; Houman, Mohamed H.; Ghedira, Habib; Kamoun, Samir; Salah, Afif Ben; Center for Outcomes Research
    BACKGROUND: There are not information about the risk of venous thromboembolism (VTE) and its prophylaxis in Tunisia. AIM: To report the Tunisian results of a multinational crosssectional study, designed to assess the prevalence of VTE risk in the acute hospital care setting and to determine the proportion of at risk patients who receive effective prophylaxis. METHODS: All hospital inpatients aged 40 years or over admitted to a medical ward or these aged 18 years or over admitted to surgical ward, in 5 Tunisian hospitals were assessed for risk of VTE on the basis of hospital chart review. The 2004 American College of chest physicians (ACCP) evidence based consensus guidelines were used to assess VTE risk and to determine whether patients were received recommended prophylaxis. RESULTS: 885 were enrolled, 212 (24%) were surgical and 673 (76%) were medical. 408 (44, 9%) judged to be at risk, 95 (44, 8%) are surgical and 313 (46, 5%) are medical. LWMH are the most used. Mechanical prophylaxis was never used. CONCLUSION: The percentage of at risk patient in Tunisia is comparable to these of other countries. The majority of at risk patient are medical. The prophylaxis was under used. Hospital strategies to assess patient VTE risk and implementation of prophylaxis protocols are needed.
  • Publication
    Improving Practices in US Hospitals to Prevent Venous Thromboembolism: Lessons from ENDORSE
    (2010-12-25) Anderson, Frederick A. Jr.; Goldhaber, Samuel Z.; Tapson, Victor F.; Bergmann, Jean-Francois; Kakkar, Ajay K.; Deslandes, Bruno; Huang, Wei; Cohen, Alexander T.; Center for Outcomes Research
    BACKGROUND: Venous thromboembolism prophylaxis is suboptimal in the US despite long-standing evidence-based recommendations. The aim of this subset analysis of the Epidemiologic International Day for the Evaluation of Patients at Risk for Venous Thromboembolism in the Acute Hospital Care Setting (ENDORSE) study was to identify characteristics of hospitals with high guideline-recommended prophylaxis use. METHODS: Between September and November 2006, charts from eligible patients aged >/= 40 years with an acute medical illness or age >/= 18 years and undergoing a surgical procedure were reviewed from randomly selected US acute-care hospitals. Hospitals were ranked based on the proportion of at-risk patients who received American College of Chest Physicians-recommended types of prophylaxis. Hospital characteristics were compared to determine factors related to more frequent prophylaxis use. Hospitals were followed up 1 year after the chart audit. RESULTS: Overall, 9257 patients were evaluated from 81 hospitals. Appropriate types of prophylaxis were prescribed to more at-risk patients in hospitals in the highest quartile compared with the lowest quartile of prophylaxis use (74% vs 36%). All quartiles had a similar percentage of at-risk patients (61%-65%). Significantly more hospitals in the highest quartile had residency training programs (43% vs 5%), a larger median number of beds (277 vs 140), and had adopted hospital-wide prophylaxis protocols (76% vs 40%). In the follow-up survey, more hospitals overall had adopted hospital-wide written guidelines for venous thromboembolism prevention. CONCLUSIONS: These findings support the value of hospital-wide protocols and local audits for VTE prevention, as recommended by several national quality-of-care groups.
  • Publication
    Venous thromboembolism risk factors and practices of prophylaxis: ENDORSE study results in Portugal
    (2011-11-01) Franca, Ana; Reis, Abilio; Paulino, Aida; Lohman, Corina; Cartucho, Daniel; Campello, Gloria; Morais, Luisa; Moreira, Pedro; Abreu, Rui; Abreu, Tiago; Center for Outcomes Research
    BACKGROUND: Venous thromboembolism (VTE) risk assessment is a cornerstone for the achievement of best practices and outcomes. Epidemiologic data and practices related to venous thromboprophylaxis as considered by the global ENDORSE study, (Epidemiologic International Day for the Evaluation of Patients at Risk for Venous Thromboembolism in the Acute Hospital Care Setting), enrolled 68,183 patients from 32 countries, in which Portugal. Within ENDORSE, data from all participant countries analyzed to determine their risk of VTE and to evaluate the suitability of prophylaxis. METHODS: European patients were enrolled from randomly selected hospitals in Portugal (European Hospital Register), according to ENDORSE study inclusion/exclusion criteria. The Seventh ACCP evidence-based consensus guidelines were employed to evaluate VTE risk and prophylaxis use. RESULTS: From a total of 3,145 beds assessed, 2,183 were considered eligible and 1,632 met all criteria. Of these, 860 (52.7%; 95% CI 50.3-55.1) were at risk of VTE: 525 surgical patients (68.9%; 95% CI 65.5-72.1) and 335 medical patients (38.5%; 95% CI 35.3-41.2). The rate of prophylaxis according to ACCP guidelines in overall patients at risk was 58.5% (503 patients). The prophylaxis rate for VTE was 59% (310 patients) in surgical patients and 57.6% (n = 193) in medical patients. 39.7% of surgical patients and 39.4 % of medical patients who did not meet the criteria for prophylaxis were also on prophylaxis with an anticoagulant, which was considered to be inappropriate. CONCLUSIONS: More than a half of these hospitalized patients in Portugal were deemed at risk of VTE and less than two-thirds of them received appropriate prophylaxis. New strategies are required for implementation of venous thromboprophylaxis in Portuguese hospitals.
  • Publication
    [Venous thromboembolism prophylaxis in Colombian surgical and medical patients: results for Colombia of the ENDORSE study]
    (2011-06-01) Dennis, Rodolfo J.; Roa, Jairo H.; Villadiego, Juan; Mendez, Freddy; Vieda, Elias; Restrepo, Hector; Center for Outcomes Research
    INTRODUCTION: More information is needed on the risk of venous thromboembolism in the hospital setting, and on patterns of use of thromboprophylaxis, as advocated in consensus guidelines.ENDORSE was an international study aimed at evaluating hospital venous thromboembolism prevention practices in medical and surgical patients. OBJECTIVES: The risk of venous thromboembolism was evaluated along with the use of thromboprophylaxis in hospitalized medical and surgical subjects; these data were compared with the international sample from the ENDORSE study. MATERIALS AND METHODS: Participating institutions in Colombia were selected arbitrarily. The medical charts for medical and surgical patients were evaluated randomly. The 2004 American College of Chest Physician guidelines were used to evaluate risk of venous thromboembolism and adherence to recommended thromboprophylaxis regimens. RESULTS: The study included 761 subjects (218 surgical, 543 medical) located in five acute care hospitals; 49% of these subjects were considered at risk of venous thromboembolism (40% medical, 72% surgical), compared with 52% in the international sample. Prophylaxis use was higher in medical patients at risk (63.7%, n = 137) than in surgical patients (48.4%, n = 76; p = 0.01). Compared with the international sample, the use of prophylaxis in Colombia was greater in medical patients (63.7% vs. 39.5%, p = 0.003), but lower in surgical patients (48.4% vs. 58.5%, p = 0.02). CONCLUSIONS: Participating Colombian centers treat patients at risk of venous thromboembolism similarly to other participant countries, but appropriate prophylaxis was prescribed more frequently to medical patients. Greater efforts are needed, both in Colombia and around the world, to improve rates of appropriate venous thromboembolism prophylaxis in at-risk subjects.
  • Publication
    Assessment of venous thromboembolism risk and adequacy of prophylaxis in selected acute care medical centres in Arabian Gulf States: results from the ENDORSE study
    (2012-06-08) Alsayegh, Faisal; Kamaliddin, Hassan; Sheshah, Eman; Bukhamseen, Nasir; Alkhuwaitir, Tarig; Elhoufi, Ashraf; Center for Outcomes Research
    OBJECTIVES: To assess the prevalence of venous thromboembolism (VTE) risk in acutely ill surgical and medical patients in selected acute care centres in the Arabian Gulf States, and to determine the proportion of at-risk patients who received effective prophylaxis in accordance with 2004 American College of Chest Physicians (ACCP) guidelines. MATERIALS AND METHODS: Eight hospitals from 3 countries (Kuwait, Kingdom of Saudi Arabia, and United Arab Emirates) contributed to the global ENDORSE (Epidemiological International Day for the Evaluation of Patients at Risk for Venous Thromboembolism in the Acute Hospital Care Setting) study. Medical records were reviewed for all the in-patients aged > / = 40 years admitted to medical wards, and in patients aged > / = 18 admitted to surgical wards. The VTE risk and recommended prophylaxis were assessed according to the 2004 ACCP guidelines. RESULTS: Of 1,291 evaluable patients, 801 were considered at risk of VTE; 391 (48.8%) surgical patients and 410 (51.2%) medical patients. Of the 801 patients, 322 (40.2%) received ACCP-recommended VTE prophylaxis; 159 (40.7%) of surgical patients and 163 (39.8%) of medical patients. CONCLUSIONS: The data showed that VTE prophylaxis was underutilized in high-risk hospitalized patients. We recommend that active measures should be implemented in acute care centres in these Arabian Gulf countries to ensure identification of patients at risk of VTE and institute the appropriate prophylaxis.
  • Publication
    Venous thromboembolism risk and prophylaxis in the acute hospital care setting (ENDORSE), a multinational cross-sectional study: results from the Indian subset data
    (2012-07-01) Pinjala, Ramakrishna; Center for Outcomes Research
    BACKGROUND and OBJECTIVES: Venous thromboembolism (VTE) is a major health problem with substantial morbidity and mortality. It is often underdiagnosed due to lack of information on VTE risk and prophylaxis. The ENDORSE (Epidemiologic International Day for the Evaluation of Patients at Risk for Venous Thromboembolism in the Acute Hospital Care Setting) study aimed to assess the prevalence of VTE risk in acute hospital care setting and proportion of at-risk patients receiving effective prophylaxis. We present here the risk factor profile and prophylaxis pattern of hospitalized patients who participated in ENDORSE study in India. METHODS: In this cross-sectional study in India, all patients (surgical >18 yr, medical >40 yr) from 10 hospitals were retrospectively studied. Demographics, VTE risk factors and prophylaxis patterns were assessed according to the 2004 American College of Chest Physicians (ACCP) evidence-based consensus guidelines. RESULTS: We recruited 2058 patients (1110 surgical, 948 medical) from 10 randomly selected hospitals in India between August 2006 and January 2007. According to the ACCP criteria, 1104 (53.6%) patients [surgical 680 (61.3%), medical 424 (44.7%)] were at-risk for VTE. Chronic pulmonary disease/heart failure and complete immobilization were the most common risk factors before and during hospitalization, respectively. In India, 16.3 per cent surgical and 19.1 per cent medical at-risk patients received ACCP-recommended thromboprophylaxis. INTERPRETATION and CONCLUSIONS: Despite a similar proportion of at-risk hospitalized patients in India and other participating countries, there was major underutilization of prophylaxis in India. It necessitates increasing awareness about VTE risk and ensuring appropriate thromboprophylaxis.
  • Publication
    Venous thromboembolism risk and prophylaxis in the acute hospital care setting: the Irish results of the ENDORSE study
    (2012-05-01) Murphy, O.; O'Connell, O.; Liston, R.; Connaughton, J.; Costello, R.; Breiden, J.; Doran, P.; Gaine, S.; Center for Outcomes Research
    ENDORSE (Epidemiologic International Day for the Evaluation of Patients at Risk for Venous Thromboembolism in the Acute Hospital Care Setting), is a multinational, cross-sectional survey of venous thromboembolism (VTE) risk prevalence and effective prophylaxis in the acute hospital care setting. Three Irish hospitals enrolled in the study. The American College of Chest Physicians (ACCP) guidelines were employed to evaluate VTE risk and prophylaxis. Of 552 patients, 297 (53.8%) and 255 (46.2%) were categorised as surgical or medical, respectively, with 175 (59%) surgical and 109 (43%) medical patients deemed to be at risk for VTE. Of these, only 112 (64%) and 51 (47%) received recommended VTE prophylaxis, respectively. The results are consistent with those observed in other countries and demonstrate a high prevalence of risk for VTE and a low rate of prophylaxis use, particularly in medical patients. Awareness of VTE guidelines should be an integral component of health policy.
  • Publication
    Venous thromboembolism risk and prophylaxis in the acute hospital care setting: report from the ENDORSE study in Egypt
    (2012-09-05) Goubran, Hadi A.; Sholkamy, Sherif; El-Haddad, Alaa; Mahmoud, Alaa; Rizkallah, Mounir A.; Sobhy, George; Center for Outcomes Research
    BACKGROUND: Venous thromboembolism (VTE) is a leading cause of hospital-related deaths worldwide. However, the proportion of patients at risk of VTE who receive appropriate prophylaxis in Egypt is unknown. The ENDORSE study in Egypt is part of a global initiative to uncover the incidence of high-risk surgical and medical patients and determine what proportion of these patients receive appropriate VTE prophylaxis. METHODS: Ten Egyptian hospitals participated in this observational study, enrolling all surgical and medical patients that met the study criteria. This resulted in a cohort of 1,008 patients in acute care facilities who underwent a retrospective chart review. Each patient's VTE risk status and the presence or absence of appropriate prophylactic care was assessed according to the American College of Chest Physicians (ACCP) guidelines 2004. RESULTS: Of the 1,008 patients enrolled, 395 (39.2%) were found to be at high-risk for VTE. Overall, 227 surgical patients were at high-risk, although only 80 (35.2%) received ACCP-recommended prophylaxis. Similarly, 55/268 (32.75%) of high-risk medical patients received appropriate VTE prophylaxis. Low molecular weight heparin was the most commonly used anticoagulant, while mechanical prophylactic use was quite low (1.5%) in high-risk patients. CONCLUSIONS: In Egypt, more than one-third of all patients hospitalized for surgery or acute medical conditions are at high risk for developing VTE. However, only a small fraction of these patients receive appropriate VTE prophylaxis. Corrective measures are necessary for preventing VTE morbidity and mortality in these high risk patients.
  • Publication
    Venous thromboembolism risk and thromboprophylaxis among hospitalized patients: data from the Turkish arm of the ENDORSE study
    (2010-10-11) Ongen, G.; Yilmaz, A.; Cirak, A. K.; Ersoy, C. Y.; Erden, F.; Altintas, F.; Yildirim, C.; Guven, H.; Demir, A.; Kaynar, L.; Bastaci, N.; Demirtas, N.; Center for Outcomes Research
    OBJECTIVES: To evaluate venous thromboembolism (VTE) risk and use of thromboprophylaxis in the acute care hospital setting. METHODS: A total of 1701 patients hospitalized for acute or exacerbated chronic medical illnesses or elective major surgery at 11 different hospitals across Turkey were included in the study. Patients at risk and VTE prophylaxis application were retrospectively identified based on medical charts. RESULTS: According to the American College of Chest Physicians (ACCP) criteria, overall 35.6% (606 of 1701) of the patients were identified to be at VTE risk. Venous thromboembolism-risk was observed in 64.9% of surgical and 23.8% of medical patients, the latter being lower than global Epidemiologic International Day for the Evaluation of Patients at Risk for Venous Thromboembolism in the Acute Hospital Care Setting (ENDORSE) study results; while prophylaxis was prescribed in 39.0% and 38.5% of them, respectively. Contraindication to anticoagulant prophylaxis was observed in 8.7% of medical and 8.8% of surgical patients. CONCLUSIONS: VTE remains a risk factor among patients hospitalized across Turkey, since identification as well as prophylaxis of patients at VTE risk seems to be neglected.
  • Publication
    [Results of ENDORSE-2-HUNGARIA study. Repeated assessment of the prevalence of venous thromboembolism risk and prophylaxis in acute hospital care setting]
    (2010-05-14) Losonczy, Hajna; Tar, Attila; ENDORSE Investigators- Hungary; Center for Outcomes Research
    ENDORSE (Epidemiologic International Day for the Evaluation of Patients at Risk for Venous Thromboembolism in the Acute Hospital Care Setting) study in 2006, was a multinational cross-sectional survey designed to assess the prevalence of venous thromboembolism (VTE) risk in the acute hospital care setting, and to determine the proportion of at-risk patients who receive appropriate prophylaxis. From the 358 randomly selected hospitals across 32 countries in the global registry, 9 Hungarian centers were included. According to the Hungarian results, the use of appropriate prophylaxis was more common in surgical patients but much less common in medical patients comparing to the worldwide average. ENDORSE 2-HUNGARY was a local survey to compare the prophylactic habits after two years and two months time period. In both surveys, the 2004 American College of Chest Physicians (ACCP) evidence-based consensus guidelines were used to assess venous thromboembolism risk and to determine whether patients were receiving recommended prophylaxis. The one day survey ENDORSE 2-HUNGARY was repeated beside seven already audited hospitals, and in two newly recruited hospitals. A total of 886 patients were assessed for thrombosis risk on the basis of hospital chart review. Of these patients 59.0% (N=523) were judged at risk for VTE, including 100% (N=327) surgical and 35.1% (N=196) medical patients. 67.9% (N=355) of the total at-risk patients received ACCP-recommended VTE prophylaxis. Among surgical patients, 84.4% (N=276) received recommended prophylaxis compared with 40.3% (N=79) of medical patients. Results of the ENDORSE in 2006 and 2009 were compared, as well. The rate of appropriate prophylaxis use in at-risk patients did not changed significantly in surgical patients, however, a significant, 43.9% increase was found in medical patients (p=0.002), that proves the success of lectures presenting the facts and focusing to increase medical prophylaxis during the time period between the two studies. 59.7% of at-risk medical patients and 15.6% of surgical patients were unprotected against thrombosis in 2009. We should further increase the rate of at-risk patients receiving appropriate prophylaxis. We should reinforce the rationale for the increase of awareness of VTE risk in hospitalized medical patients, and to enhance the prophylaxis practice among healthcare professionals.
  • Publication
    [Venous thromboembolism risk and prophylaxis in the acute hospital care setting (ENDORSE study): results obtained in France]
    (2011-12-04) Bergmann, Jean-Francois; Lloret-Linares, Celia; Rami, Agathe; Cohen, Alexander T.; Garay, Ricardo P.; Kakkar, Ajay K.; Goldhaber, Samuel Z.; Deslandes, Bruno; Tapson, Victor F.; Anderson, Frederick A. Jr.; Center for Outcomes Research
    AIM: Information about the variation in the risk for venous thromboembolism (VTE) and in prophylaxis practices in France and around the world is scarce. METHODS: The Epidemiologic International Day for the Evaluation of Patients at Risk for Venous Thromboembolism in the Acute Hospital Care Setting (ENDORSE) study is a multinational cross-sectional survey designed to assess the prevalence of VTE risk in the acute hospital care setting, and to determine the proportion of at-risk patients who receive effective prophylaxis, in accordance with the 2004 American College of Chest Physicians (ACCP) guidelines. This paper gives the results of the ENDORSE study in the French centres in comparison with the global worldwide results of the ENDORSE study and with other Western Europe countries. RESULTS: In France, 18 randomized hospitals participated to the study between august 2006 and January 2007. 2844 patients were evaluated (917 from chirurgical wards and 1927 from medical wards). One thousand four hundred and nineteen patients (49.9%) were at VTE risk (78.3% in chirurgical wards and 36.4% in medical wards). Of the 1419 patients at VTE risk, 62.4% received ACCP-recommended VTE prophylaxis (71.2% in chirurgical wards and 53.5% in medical wards). VTE Prophylaxis in France (62.4%) is more frequent than worldwide in the international ENDORSE study (50.2%) and similar to the majority of the other western European countries and the USA. It is also more used in university hospitals (66.9%) than in other hospitals (58.9%). Prophylaxis in patients at risk for VTE was presented in 43% patients with acute heart failure, 53% with non-infectious acute respiratory failure, 57% in patients with pulmonary infection, 56% in patients with stroke, 55% in patients with active cancer and 48% in patients with non-pulmonary sepsis. CONCLUSIONS: The ENDORSE study has shown a high level of patients at risk for VTE in the population of hospitalized patients in France. The rate of prophylaxis for VTE remained low, in particular in Medicine wards. Our data reinforced the rationale for the use of hospital-wide strategies to assess patients' VTE risk and to implement measures that ensure that at-risk patients receive appropriate prophylaxis, in particularly in medical patients.
  • Publication
    [Venous thromboembolism risk and prophylaxis in the acute hospital care setting (ENDORSE II study): results of a Mexican national cross-sectional study]
    (2010-07-21) Martinez-Zubieta, Ricardo; Center for Outcomes Research
    BACKGROUND: It is well known that a significant proportion of hospitalized medical and surgical patients with risk factors for deep vein thrombosis (DVT) are not receiving thromboprophylaxis. We designed this study to evaluate the proportion of at-risk patients and the proportion of those receiving recommended prophylaxis. METHODS: We conducted a multicentric cross-sectional survey that included medical and surgical patients from 43 hospitals throughout Mexico. Patients who were at risk for DVT according to the ACCP 2004 guidelines were included and evaluated for thromboprophylaxis. RESULTS: Overall, 625 patients were at risk: 308 (49%) surgical patients and 317 (51%) medical patients. There were 179 (58%) surgical patients receiving recommended prophylaxis, whereas medical patients represented 117 (37%) patients. CONCLUSIONS: There is a significant proportion of hospitalized medical and surgical patients at risk for DVT. There is also a significant underutilization of recommended thromboprophylaxis among these patients.