Abstract
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Abstract
Year 2021
October 2021

SHBC1649

Abstract Title
Incidence and site of index episode of left-sided and right-sided deep vein thrombosis in patients from Tan Tock Seng Hospital - Is it different with different implications ? Ongoing study
Authors

KKK1, KXO1, A.A.SULE1

Institutions

Tan Tock Seng Hospital1

Background & Hypothesis

Incidence of deep vein thrombosis (DVT) varies among countries, with higher rates reported in Caucasian than Asian countries. Studies have reported left-sided DVT are more common but right-sided DVT may be associated with higher incidence of pulmonary embolism (PE) and malignancy. The primary objective is to investigate the incidence of left-sided DVT compared to right-sided DVT. The secondary objectives are to identify differences in patient characteristics in these two groups and evaluate DVT risk scoring in these patients.

 

Methods

This is a retrospective cohort study. Eligible patients with DVT diagnosis on ultrasound doppler in Tan Tock Seng Hospital from 01/1/2010 – 31/12/2018 were separated into left-sided and right-sided DVT. Baseline characteristics and risk factors for DVT were collected and compared between the two groups. Padua and Improve VTE (Venous Thromboembolism) risk scores were calculated.

Results

At this juncture a total of 333 patients were screened and 135 eligible patients were included in analysis.

The incidence of left-sided DVT was 56.3%. Of the patients with right-sided DVT, 61% were female, 25.4% had concurrent PE, and 44.1% developed DVT during admission with at least half having high VTE risk scores.

Comparatively, 46.1% of left-sided DVT group were female, 15.8% had concurrent PE, and 23.7% developed DVT during admission. 

Discussion & Conclusion

Our preliminary findings are consistent with international studies in that left-sided DVT are more common. Right-sided DVT however, may be associated with higher incidence of PE. More data is required to further investigate the differences in risk factors.

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