Incidence and Associated Factors of Deep Vein
Thrombosis in Thai Surgical ICU Patients
without Chemoprophylaxis: One Year Study
Supparerk Prichayudh MD*,
Monravee Tumkosit MD**, Suvit Sriussadaporn MD*, Pasurachate Samorn MD*,
Rattaplee Pak-art MD*, Sukanya Sriussadaporn MD*, Kritaya Kritayakirana MD*
Affiliation :
* Department of Surgery, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
** Department of Radiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
Background : Deep vein thrombosis (DVT) is a major problem in the intensive care unit (ICU) patients, especially in Western
countries. However, because the incidence of DVT in Asia ICU is lower, chemoprophylaxis (i.e., anticoagulant) is not
routinely utilized. The aim of the present study was to identify the incidence and associated factors of DVT in Thai surgical
ICU (SICU) patients without chemoprophylaxis.
Material and Method: SICU patients admitted between June 2011 and July 2012 were screened for lower extremity DVT
using doppler ultrasonography. Stepwise logistic regression was performed to identify associated factors for the development
of DVT.
Results : Three hundred and five patients were included in the study, 174 were male (57%) and 131 were female (43%), with
ages ranged from 15 to 99 years (mean 62.8 years). Eleven patients had DVT identified (DVT rate 3.6%), two of these had
symptomatic pulmonary embolisms. The associated factors for the development of DVT were prior history of venous
thromboembolism (p<0.001, OR 34.3, 95% CI 14.6-80.5), orthopedics group (p<0.001, OR 27.2, 95% CI 5.2-142.1), and
female (p = 0.034, OR 14.3, 95% CI 1.7-102.5).
Conclusion : The incidence of DVT in Thai SICU patients was 3.6%. Further study is required to identify method and
effectiveness of DVT prophylaxis in Asian ICU patients.
Keywords : Deep Vein Thrombosis, ICU, Doppler Ultrasonography
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