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It can be helpful to know the guidelines concerning anticoagulation and common outpatient procedures.
Common outpatient procedures and recommendations regarding anticoagulation include dental procedures, gastrointestinal (GI) procedures, skin biopsies, and cataract removal.
For dental procedures, if the INR is within the therapeutic range, the risk of bleeding is minimal, including in the case of surgical extractions. Mouthwashes containing tranexemic acid may help minimize bleeding. For GI procedures, including colonoscopies and endoscopy, in which biopsies are not anticipated and overall risk is low, anticoagulation can be continued. When the procedural risk is high, but the patient has a low risk for thromboembolism, anticoagulation should be withheld as it would before any other surgery. If the risk for thromboembolism is high, bridging should be offered before surgery.
For many common outpatient procedures, anticoagulation may be safely continued.
Source: Weinberg I. Anticoagulation and surgery. Vascular medicine. http://www.angiologist.com/anticoagulation-and-surgery. Accessed February 9, 2012.