@article{oai:soar-ir.repo.nii.ac.jp:00004172, author = {田中, 宏和 and 栗田, 浩 and 鎌田, 孝広 and 小池, 剛史}, issue = {6}, journal = {信州医学雑誌}, month = {Dec}, note = {We retrospectively reviewed and discussed hematostatic managements for tooth extraction in patients maintained on oral anticoagulant. From 2001 to 2007, 109 patients maintained with oral anticoagulant treatment underwent a total of 143 occasions of tooth extraction in our department.At the time of tooth extraction, oral anticoaglant medication was maintained on 76 occasions (53%), and had been discontinued on 55 occasions (38%). Postoperative bleeding happened in 5 cases (9.1%) in patients without interruption of oral anticoagulant, and in 3 cases (3.9 %) in patients with interruption. There was no significant difference in the Prothrombin Time International Normalized Ratio (PT-INR) and in postoperative hemostatic procedures between them.The results of this study suggest that dental extraction can be performed without modification of oral anticoagulant treatment in cases where the PT-INR is less than 3.0.Strict local hemostatic procedures are necessary to prevent postoperative bleeding, Article, 信州医学雑誌, 58(6):301-305 (2010)}, pages = {301--305}, title = {経口抗凝固薬(ワルファリン)内服患者の抜歯に関する検討}, volume = {58}, year = {2010} }