JOURNAL ARTICLE
MULTICENTER STUDY
RESEARCH SUPPORT, NON-U.S. GOV'T
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Venous thromboembolism risk assessment and thromboprophylaxis among hospitalized acute medical patients in China--the RAMP study.

Thrombosis Research 2010 October
BACKGROUND: In developed countries, hospitalized patients with acute medical conditions are at significant risk for venous thromboembolism (VTE). Little is known about VTE risk and prophylaxis practices in China.

OBJECTIVE: To determine the VTE risk and the frequency of recommended VTE prophylaxis in hospitalized Chinese patients with acute medical conditions.

METHODS: Multi-center, cross-sectional, observational study.

ELIGIBILITY CRITERIA: ≥30 years, admitted to an intensive care unit (ICU)/coronary care unit (CCU) for acute medical illness, had ≥1 VTE risk factor/1 disease that predisposes to VTE, and provided informed consent. We used 2004 American College of Chest Physicians (ACCP) evidence-based consensus guidelines to assess VTE risk and the frequency of recommended VTE prophylaxis.

RESULTS: 1247 patients from 19 hospitals in 11 cities across 11 provinces of China were enrolled from July 2007 to June 2008. 57.3% patients had >2 VTE risk factors. Only 20.2% received ACCP-recommended VTE prophylaxis (CCU patients: 22.7%, ICU patients: 16.9%, p=0.0117).

LIMITATIONS: Excluding some patients with VTE risk factors did not allow assessment of the prevalence of VTE risk in the acute hospital-care setting. We could not determine whether the duration of prophylaxis complied with the ACCP recommendations. Our results may not be representative of hospitals in small cities/rural areas in China.

CONCLUSIONS: The prevalence of VTE risk factors in Chinese patients was similar to that in developed countries; however, only a small proportion of eligible patients received the recommended VTE prophylaxis. Our findings highlight the need for dissemination and implementation of appropriate VTE prophylaxis guidelines in China.

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