• Inge H Y Luu, Guy J M Mostard, Dominique van Mil, Marlon H W van Berlo, Marc B I Lobbes, Kemal Külcü, Hugo Ten Cate, Jos Peeters, Jan Palmen, Jacqueline Buijs, Kon-Siong G Jie, van KampenRoel J WRJWDepartment of Internal Medicine, Zuyderland Medical Center, Sittard/Heerlen, the Netherlands., and Daan J L van Twist.
• Department of Internal Medicine, Zuyderland Medical Center, Sittard/Heerlen, the Netherlands.
• Eur. J. Intern. Med. 2024 Apr 1; 122: 546054-60.

BackgroundPatients with suspected deep venous thrombosis (DVT) are typically referred to the emergency department (ED) for immediate evaluation. However, this often contributes to ED overcrowding and necessitates round-the-clock sonographic examinations. Therefore, we implemented a regionwide care pathway for deferring diagnostic workup of suspected DVT until the following day. Patients receive a single anticoagulant dose from their general practitioner (GP) to prevent progression of DVT in the interval between referral and diagnostic evaluation. The next day, patients undergo comprehensive evaluation at our outpatient DVT clinic, including venous ultrasound. This retrospective study aims to provide real-world data on the safety of this care pathway regarding the occurrence of bleeding complications and pulmonary embolism (PE).MethodsWe included all GP-referred patients with suspected DVT in 2018 and 2019. Patients with absolute contraindications to deferred evaluation or anticoagulation were excluded. The primary endpoint was the occurrence of bleeding complications. Secondary endpoints included PE events and all-cause mortality within seven days following DVT evaluation.ResultsAmong 1,024 included patients, DVT was confirmed in 238 patients (23.2%) and superficial thrombophlebitis in 98 patients (9.6%). No bleeding events were recorded in patients in whom DVT was ruled out. PE was confirmed in eight patients on the same day as DVT evaluation (0.8%, 95%CI 0.4-1.6) and in six patients within seven days following DVT evaluation (0.6%, 0.2-1.3%). No deaths occurred during this timeframe.ConclusionThis real-world study observed a very low incidence of bleeding complications and PE events, indicating that this care pathway of deferred DVT workup is safe and may offer a more streamlined diagnostic approach for patients with suspected DVT.Copyright © 2023 European Federation of Internal Medicine. Published by Elsevier B.V. All rights reserved.

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