Background: Venous thromboembolism (VTE) is not common following varicose vein surgery. Further, there is a lack of specific evidence-based clinical guidelines regarding thromboprophylaxis in this type of surgery.
Aims: We have conducted a national survey to investigate the current practice among Brazilian vascular surgeons regarding thromboprophylaxis for varices surgery.
Methods: An anonymous online questionnaire was emailed to all 3.766 members of the Brazilian Society of Angiology and Vascular Surgery (SBACV) and a message was sent to approximately 1.500 members of the Vascular Forum WhatsApp® group in Brazil.
Results: We received 765 responses. With regard to VTE prevention, 48.3% surgeons stratify the patients pre-operatively, 10.6% never do it and 7.4% rarely do so. 30.6% surgeons always prescribe pharmacological prophylaxis, 21.9% rarely do it and 18.4% never do so. The agents are prescribed for just one day in 44.2% of the answers, 5.9% for two days, 7.3% for three days and 23.2% for seven days. The enoxaparin is prescribed in 84% of the cases, and 44.2% use a single dose. The DOACS have been used off label by 13% of the surgeons and rivaroxaban was the chosen in 93% of the answers. If the patients are taking contraceptive pills, 61% of the respondents continue to use them. Routine post procedure duplex scan is carried out by 18%. Moreover, 73% of respondents claim to know their post-operative VTE rate which varies from 0% (26%), 1% (50%) 2 to 5% (11%). The post op VTE occurred on the day 3 to 10 in 60.3% of the answers. 5.8% of the surgeons reported death cases after the varicose vein surgery.
Conclusions: The majority of respondents use peri-procedure pharmacoprophylaxis for varicose vein surgery, mainly enoxaparin in a single dose. DOACS have been used off label in 13% of the cases. VTE rates were low. However, the true incidence may be higher.
To cite this abstract in AMA style:Ribeiro AJ, Marques MA, Erzinger FL, AR. Final Results (765 Answers) of the Brazilian National Survey in Thromboprophylaxis for Varicose Vein Surgery [abstract]. Res Pract Thromb Haemost. 2021; 5 (Suppl 2). https://abstracts.isth.org/abstract/final-results-765-answers-of-the-brazilian-national-survey-in-thromboprophylaxis-for-varicose-vein-surgery/. Accessed December 5, 2021.
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