Based on current evidence, in most patients with an episode of venous thromboembolism
(VTE) extended anticoagulation is generally recommended beyond the initial 3–6 months
provided the bleeding risk is acceptably low [
[1]
]. Among factors that are expected to increase the risk of (major) bleeding complications
is the elderly age. In a recent overview and meta-analysis of 27 prospective cohort
and randomized clinical trials, older patients were found to exhibit a higher risk
of major or clinically relevant bleeding complications, even with the use of the direct
oral anticoagulants (DOAC) [
[2]
]. Not surprisingly, therefore, the prolongation of anticoagulation beyond the initial
3–6 months in patients over 75 years old is generally discouraged [
- Khan F.
- Tritschler T.
- Kimpton M.
- Wells P.S.
- Kearon C.
- Weitz J.I.
- Büller H.R.
- Raskob G.E.
- Ageno W.
- Couturaud F.
- Prandoni P.
- Palareti G.
- Legnani C.
- Kyrle P.A.
- Eichinger S.
- Eischer L.
- Becattini C.
- Agnelli G.
- Vedovati M.C.
- Geersing G.J.
- Takada T.
- Cosmi B.
- Aujesky D.
- Marconi L.
- Palla A.
- Siragusa S.
- Bradbury C.A.
- Parpia S.
- Mallick R.
- Lensing A.W.A.
- Gebel M.
- Grosso M.A.
- Thavorn K.
- Hutton B.
- Le Gal G.
- Fergusson D.A.
- Rodger M.A.
Long-term risk for major bleeding during extended oral anticoagulant therapy for first
unprovoked venous thromboembolism: a systematic review and meta-analysis.
Ann. Intern. Med. 2021; 174: 1420-1429
[3]
]. This recommendation, however, can only be justified if the risk of recurrent VTE
in patients in whom anticoagulation is discontinued does not exceed that expected
in younger individuals. As far as we know, no study has addressed the risk of recurrent
VTE beyond the age of 75. Hence, this key question is still unanswered.Keywords
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References
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Article info
Publication history
Published online: December 16, 2022
Accepted:
December 12,
2022
Received in revised form:
December 1,
2022
Received:
October 29,
2022
Identification
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© 2022 Elsevier Ltd. All rights reserved.