American Society of Hirudotherapy

Perioperative management of antithrombotic therapy: Antithrombotic Therapy and Prevention of Thrombosis, 9th ed: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines.

Research article published in Chest (2012)

Last Updated: June 18, 2026Reviewed by: ASH Editorial Board
Research article — evidence reviewArticle reference
Evidence: Practice guidelineClinical TrialsDrug DevelopmentDouketis et al. · Chest, 2012

Abstract

BACKGROUND: This guideline addresses the management of patients who are receiving anticoagulant or antiplatelet therapy and require an elective surgery or procedure. METHODS: The methods herein follow those discussed in the Methodology for the Development of Antithrombotic Therapy and Prevention of Thrombosis Guidelines. Antithrombotic Therapy and Prevention of Thrombosis, 9th ed: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines article of this supplement. RESULTS: In patients requiring vitamin K antagonist (VKA) interruption before surgery, we recommend stopping VKAs 5 days before surgery instead of a shorter time before surgery (Grade 1B). In patients with a mechanical heart valve, atrial fibrillation, or VTE at high risk for thromboembolism, we suggest bridging anticoagulation instead of no bridging during VKA interruption (Grade 2C); in patients at low risk, we suggest no bridging instead of bridging (Grade 2C). In patients who require a dental procedure, we suggest continuing VKAs with an oral prohemostatic agent or stopping VKAs 2 to 3 days before the procedure instead of alternative strategies (Grade 2C). In moderate- to high-risk patients who are receiving acetylsalicylic acid (ASA) and require noncardiac surgery, we suggest continuing ASA around the time of surgery instead of stopping ASA 7 to 10 days before surgery (Grade 2C). In patients with a coronary stent who require surgery, we recommend deferring surgery > 6 weeks after bare-metal stent placement and > 6 months after drug-eluting stent placement instead of undertaking surgery within these time periods (Grade 1C); in patients requiring surgery within 6 weeks of bare-metal stent placement or within 6 months of drug-eluting stent placement, we suggest continuing antiplatelet therapy perioperatively instead of stopping therapy 7 to 10 days before surgery (Grade 2C). CONCLUSIONS: Perioperative antithrombotic management is based on risk assessment for thromboembolism and bleeding, and recommended approaches aim to simplify patient management and minimize adverse clinical outcomes.

Abstract sourced from PubMed (NCBI) for the cited record. See the original publication for the authoritative version.

Publication typeJournal ArticlePractice Guideline
Indexed MeSH termsAngioplasty, Balloon, CoronaryAspirinAtrial FibrillationDrug Administration ScheduleElective Surgical ProceduresEvidence-Based MedicineFibrinolytic AgentsHeart Valve ProsthesisHumansPerioperative CarePlatelet Aggregation InhibitorsPostoperative Complications

Summary

This guideline addresses the management of patients who are receiving anticoagulant or antiplatelet therapy and require an elective surgery or procedure. The methods herein follow those discussed in the Methodology for the Development of Antithrombotic Therapy and Prevention of Thrombosis Guidelines.

Why This Matters for Hirudotherapy

This 9th-edition American College of Chest Physicians evidence-based guideline addresses how to manage patients on anticoagulant or antiplatelet therapy who need elective surgery, recommending (among other graded statements) stopping vitamin K antagonists 5 days before surgery and bridging anticoagulation only in patients at high thromboembolic risk. For hirudotherapy it provides essential clinical-context safety grounding: because leech therapy introduces hirudin and other anticoagulant/antiplatelet secretome components and produces prolonged wound oozing, the same perioperative bleeding-versus-thromboembolism risk framework these guidelines formalize is the framework a clinician must apply before combining leeching with surgery or systemic antithrombotic drugs. Caveat: this is a clinical practice guideline about pharmacologic antithrombotic therapy and does not study or mention hirudotherapy; many of its recommendations carry weak (Grade 2C) certainty, and it informs context rather than endorsing leech treatment.

Citation

Perioperative management of antithrombotic therapy: Antithrombotic Therapy and Prevention of Thrombosis, 9th ed: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines.

Douketis et al. · Chest, 2012

Added to ASH library: May 28, 2026 · Site last updated: June 18, 2026

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