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Semin Thromb Hemost 2021; 47(06): 702-708
DOI: 10.1055/s-0041-1722845
Review Article

Risk of Bleeding during Implant Surgery in Patients Taking Antithrombotics: A Systematic Review

Luciano Nascimento Braga Miziara
1   Department of Oral Implantology, Dental School, University of Santo Amaro, São Paulo, Brazil
,
Wilson Roberto Sendyk
1   Department of Oral Implantology, Dental School, University of Santo Amaro, São Paulo, Brazil
,
Karem López Ortega
2   Division of Oral Pathology, Department of Stomatology, Dental School, University of São Paulo, São Paulo, Brazil
,
Marina Gallottini
2   Division of Oral Pathology, Department of Stomatology, Dental School, University of São Paulo, São Paulo, Brazil
,
Daniel Isaac Sendyk
3   Division of Periodontics, Department of Stomatology, Dental School, University of São Paulo, São Paulo, Brazil
,
Fabiana Martins
1   Department of Oral Implantology, Dental School, University of Santo Amaro, São Paulo, Brazil
› Author Affiliations Funding This study is funded by the São Paulo Research Foundation FAPESP grant number: 2018/02568–8.
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Abstract

The objective of this systematic review is to assess the risk of postoperative bleeding in oral surgery for implant placement in individuals taking antithrombotics (i.e., anticoagulants and/or antiplatelet agents). A literature search was performed in PubMed (MEDLINE), Web of Science, Scopus, and EMBASE databases for articles published until August 2020, with no date restriction, and manually completed. We included prospective clinical studies that provided information regarding the presence of an experimental group (i.e., implant placement), a control group (patients not under treatment with antithrombotics), and a well-established protocol for evaluating bleeding. Meta-analysis determined the risk of bleeding during the placement of implants in antithrombotic-treated patients. Of the 756 potentially eligible articles, 5 were included in the analysis with 4 ranked as high and 1 as medium quality. Antithrombotic treatment comprised the following drug classes: (1) anticoagulants: vitamin K antagonists, (2) nonvitamin K antagonist oral anticoagulants, (3) low-molecular-weight heparin, and (4) antiplatelet agents (not specified). The results suggest that the risk of bleeding is not substantially higher in antithrombotic-treated patients (odds ratio = 2.19; 95% confidence interval: 0.88–5.44, p = 0.09) compared with nontreated patients. This systematic review suggests that the absolute risk is low and there is no need to discontinue or alter the dose of the antithrombotic treatment for implant placement surgery.

Keywords

dental implants - antithrombotics - anticoagulants - antiplatelet agents - hemorrhage - oral surgery


Publication History

Article published online:
10 May 2021

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