PMID- 27526543 OWN - NLM STAT- MEDLINE DCOM- 20160906 LR - 20160816 IS - 0047-1860 (Print) IS - 0047-1860 (Linking) VI - 62 IP - 10 DP - 2014 Oct TI - [Monitoring of Anticoagulant Therapy after Orthopedic Surgery]. PG - 970-5 AB - Venous thromboembolism (VTE) is a serious, although decreasingly prevalent, complication following major orthopedic surgery, such as total hip replacement and total knee replacement. In Japan, patients undergoing orthopedic surgery are treated with adjusted-dose warfarin, low-dose unfractionated heparin (UFH), fondaparinux, low-molecular-weight heparin (LMWH), and edoxaban postoperatively for VTE prophylaxis. The American College of Chest Physicians guidelines recommend the administration of various anticoagulants, including warfarin, LMWH, UFH, edoxaban, fondaparinux, dabigatran, apixaban, rivaroxaban, and aspirin. Although the prothrombin time (PT) remains constant under monitoring of warfarin therapy, the PT, activated partial thromboplastin time (APTT), and anti-Xa activity may vary under monitoring of treatment with UFH, LMWH, fondaparinux, and/or novel oral anticoagulants (NOACs). Therefore, the monitoring of selective anti-Xa drugs has not yet been established. A marked prolongation of the APTT and PT values in patients treated with NOACs indicates a risk of bleeding, whereas low levels of D-dimer and soluble fibrin suggest the usefulness of anticoagulants for VTE prophylaxis. An elevation of the anti-Xa activity on day 1 in addition to a marked elevation of the D-dimer level reflect the risk of major bleeding in patients undergoing orthopedic surgery treated with fondaparinux postoperatively. However, there are currently no biomarkers for the efficacy of selective Xa or thrombin inhibitors. Therefore, it is necessary to establish further evidence for monitoring the effects of NOACs. FAU - Wada, Hideo AU - Wada H FAU - Matsumoto, Takeshi AU - Matsumoto T FAU - Aota, Takumi AU - Aota T LA - jpn PT - English Abstract PT - Journal Article PT - Review PL - Japan TA - Rinsho Byori JT - Rinsho byori. The Japanese journal of clinical pathology JID - 2984781R RN - 0 (Anticoagulants) RN - 9005-49-6 (Heparin) SB - IM MH - Anticoagulants/*therapeutic use MH - Hemorrhage/prevention & control MH - Heparin/*therapeutic use MH - Humans MH - *Orthopedics MH - *Partial Thromboplastin Time MH - Venous Thromboembolism/*drug therapy EDAT- 2014/10/01 00:00 MHDA- 2016/09/07 06:00 CRDT- 2016/08/17 06:00 PHST- 2016/08/17 06:00 [entrez] PHST- 2014/10/01 00:00 [pubmed] PHST- 2016/09/07 06:00 [medline] PST - ppublish SO - Rinsho Byori. 2014 Oct;62(10):970-5.