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Noumegni, Steve Raoul; Le Mao, Raphael; de Moreuil, Claire; Hoffmann, Clément; Le Moigne, Emmanuelle; Tromeur, Cécile; Mansourati, Vincent; Nasr, Bahaa; Gentric, Jean-Christophe; Guegan, Marie; Poulhazan, Elise; Bressollette, Luc; Lacut, Karine; Didier, Romain; Couturaud, Francis
Chest, 11/2022, Volume: 162, Issue: 5Journal Article
It was recently established that patients who developed VTE are at increased risk of major adverse cardiovascular events (MACE) compared with the general population. However, whether the anticoagulation used for VTE influences the risk of MACE remains undescribed. Does the anticoagulant treatment for VTE affect the risk of subsequent MACE? This study included patients from a large prospective cohort who received only one family of anticoagulant treatment after the acute phase of VTE, including vitamin K antagonist (VKAs) and direct oral anticoagulants (DOACs). MACE included nonfatal acute coronary syndrome, nonfatal stroke, and all-cause death. The secondary outcome, MACE-2, included cardiovascular death instead of all-cause death. Cox proportional and Fine-Gray models served to study the relationship between anticoagulation characteristics and the risk of outcomes. A total of 3,790 patients (47.2% male; mean age, 60.48 years) were included. A total of 1,228 patients (32.4%) were treated for 0 to 3 months (median in overall population, 6 months). Compared with these patients, those treated for 3 to 12 months (hazard ratio HR, 0.64; 95% CI, 0.54-0.76) or > 12 months (HR, 0.47, 95% CI, 0.39-0.56) had a significant reduced risk of MACE following adjustment for confounders. Findings were similar for MACE-2 (sub-HR for 3-12 months, 0.61 95% CI, 0.47-0.79; sub-HR > 12 months, 0.52 95% CI, 0.39-0.68). After adjustment for confounders, there was a reduced risk of MACE (HR, 0.53; 95% CI, 0.39-0.71) and MACE-2 (sub-HR, 0.48; 95% CI, 0.29-0.77) in patients treated with DOACs (vs VKAs). Treatment of VTE for > 3 months is associated with a reduced risk of MACE, as is treatment with DOACs vs VKAs. These findings, which may influence the choice of anticoagulation strategies for VTE, need confirmation by randomized clinical trials.
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