Educational Curriculum Framework
Five-level training framework for hirudotherapy education — from medical student survey through advanced surgical fellowship — with competencies, objectives, and assessment methods
Last updated: June 18, 2026
Educational framework, not certification authority
ASH publishes this curriculum as a reference framework for medical schools, residency programs, integrative medicine fellowships, and continuing-education providers. ASH itself does not issue licensure, board certification, or credentialing — institutional and state authorities remain the legal pathway for clinical practice.
Building Sustainable Hirudotherapy Education
Hirudotherapy is conspicuously absent from most U.S. medical school curricula despite being FDA-cleared for microsurgical venous congestion and supported by mounting clinical evidence. ACGME-accredited surgical residencies cover microsurgical reconstruction but rarely formalize leech-therapy protocols. This curriculum framework addresses the gap by providing structured learning objectives, competencies, and assessment methods across five educational levels.
The framework is designed for adoption by medical schools (Level 1), surgical residencies (Level 2), reconstructive microsurgery fellowships (Level 3), advanced-practice programs (Level 4), and continuing medical education (Level 5). Each level builds on the previous; faculty resources and assessment tools are provided. ASH does not currently certify practitioners but offers this framework as a foundation for institutions developing their own training.
Important: This curriculum framework is educational reference, not a certification program. ASH does not currently offer practitioner certification. Institutions adopting this framework retain full authority over their own training credentialing, ACGME accreditation requirements, and state medical practice act compliance. Curriculum adaptation to local clinical practice remains each institution's responsibility.
Five training levels:
Medical Student Survey
Brief integration into pre-clinical and clinical years
Competencies
- Recognize hirudotherapy as an FDA-cleared adjunct in reconstructive microsurgery
- Identify the three FDA-cleared medicinal leech suppliers (Ricarimpex, Biopharm UK, Carolina Biological)
- Describe the Aeromonas infection risk and rationale for antibiotic prophylaxis
- Distinguish FDA-cleared indication (venous congestion in flaps/grafts/replants) from off-label applications
- Articulate the relevance of leech-derived pharmacology (hirudin → bivalirudin → dabigatran pipeline)
Learning Objectives
- After completion, student can explain to a layperson what hirudotherapy is and when it's used
- Student can identify hirudin and its role as the model for direct thrombin inhibitor drug class
- Student understands the regulatory framework (FDA Class-cleared medical device, June 21, 2004)
- Student recognizes hirudotherapy as evidence-based therapy, not alternative/folk medicine
Assessment Methods
- Multiple-choice questions on USMLE-style exam (1-3 items integrated with reconstructive surgery topics)
- Short-answer prompt on leech-derived pharmacology in pharmacology block
- Optional case-based assessment for students pursuing surgical specialties
Faculty Resources
- ASH Patient FAQs (63 questions, evidence-tier annotated)
- ASH Discovery Timeline (30 milestones across 141 years)
- ASH Pharmacology Hub (hirudin to bivalirudin to dabigatran translational pipeline)
- Single-slide curriculum slide deck available on request
Surgical Resident Foundations
ACGME-accredited residency integration in PGY-2 and PGY-3
Competencies
- Apply leech-therapy protocols in microsurgical flap salvage under attending supervision
- Order, monitor, and document antibiotic prophylaxis (cipro + TMP-SMX)
- Recognize and respond to adverse events (Aeromonas infection, allergic reactions, vasovagal episode)
- Counsel patients about procedure expectations, including informed consent for FDA-cleared use
- Document leech-therapy cases in EMR with appropriate ICD-10 and procedural coding
- Coordinate with pharmacy, infection prevention, and nursing for program operations
Learning Objectives
- Resident can perform leech application under supervision with documented competency
- Resident can identify clinical signs of venous congestion requiring leech intervention
- Resident can interpret post-application monitoring data and escalate appropriately
- Resident can articulate evidence base supporting hirudotherapy for FDA-cleared and off-label indications
- Resident can recognize all 30 documented adverse events and initial management for each
Assessment Methods
- ACGME milestone documentation: technique competency in microsurgical flap salvage
- Direct observation of procedural skill (DOPS) assessment by attending
- Multi-rater feedback (nurses, pharmacists, peers) at PGY-2 and PGY-3 transitions
- Mock oral exam case scenario including hirudotherapy decision-making
- Quality improvement project participation involving hirudotherapy outcomes
Faculty Resources
- ASH Implementation Playbook (10-phase institutional deployment guide)
- ASH Safety Protocols (detailed contraindications + monitoring)
- ASH Adverse Event Atlas (30 events with management protocols)
- Whitaker 2012 systematic review (PMID 22407551) for journal club
- Mumcuoglu 2014 prophylaxis guidelines for journal club
- Herlin 2017 dual-agent prophylaxis for journal club
Reconstructive Microsurgery Fellowship
Subspecialty fellowship integration
Competencies
- Lead leech-therapy program at high-volume center as primary clinician
- Conduct quality improvement and outcome research on hirudotherapy outcomes
- Mentor junior residents and medical students in leech-therapy protocols
- Develop institutional protocols and order sets based on emerging evidence
- Present at national surgical meetings (ASRM, ASPS) on hirudotherapy topics
- Coordinate multidisciplinary care (anesthesia, pharmacy, infection prevention, social work)
Learning Objectives
- Fellow can autonomously manage leech-therapy program for complex microsurgical cases
- Fellow can interpret published literature critically including methodological limitations
- Fellow can lead institutional QI initiatives improving leech-therapy outcomes
- Fellow can publish or co-author at least one peer-reviewed manuscript on hirudotherapy topic
- Fellow can articulate trade-offs between leech therapy and alternative interventions
Assessment Methods
- ASRM/ASPS examination performance
- Fellowship portfolio with documented case complexity and outcomes
- Manuscript submission as first or senior author on hirudotherapy topic
- National meeting presentation (ASRM annual scientific meeting or equivalent)
- 360-degree feedback from faculty, nursing, and pharmacy
- Letter of recommendation from program director attesting to leech-therapy competency
Faculty Resources
- ASH Trusted Sources (71 authoritative references) for literature review
- ASH Open Research Questions (42 questions across 12 categories) for research project topics
- ASH Breakthrough Horizons (12 frontier directions) for future-research framing
- Direct connection to ASH research collaboration network
- Faculty mentorship through ASH advisor relationships
Advanced Practice & Allied Health Training
Nurse practitioners, physician assistants, RNs, and pharmacists
Competencies
- Apply leech-therapy independently or under physician supervision (per state scope-of-practice)
- Perform competent monitoring of leech-therapy patients including detection of complications
- Manage antibiotic prophylaxis orders and patient education for the regimen
- Recognize and initially respond to adverse events including anaphylaxis
- Document leech-therapy cases per institutional standards
- Counsel patients and families on procedure expectations and post-procedure care
Learning Objectives
- Clinician can perform leech application with documented competency
- Clinician can recognize all 30 documented adverse events with appropriate response
- Clinician can manage routine post-application monitoring autonomously
- Clinician can escalate appropriately to physician for complications
- Clinician can educate patients about expected vs. concerning post-procedure findings
Assessment Methods
- Written knowledge exam (minimum 80% passing)
- Hands-on skills competency demonstration with non-medical training leeches
- Supervised initial 5 patient applications with structured debrief
- Annual recertification with competency demonstration
- Documentation review (every 6 months for first year, annually thereafter)
Faculty Resources
- ASH Patient FAQs (63 patient questions) for counseling preparation
- ASH Adverse Event Atlas (30 events) for response training
- ASH Safety Protocols for contraindication review
- Simulation training curriculum (available on request)
Continuing Medical Education (CME)
Practicing clinicians and lifelong learning
Competencies
- Maintain currency with emerging evidence in hirudotherapy
- Apply new findings from major studies (RCTs, systematic reviews) to clinical practice
- Integrate new safety surveillance findings into local protocols
- Adopt emerging best practices in patient selection and dosing
- Engage with regulatory updates affecting clinical practice
Learning Objectives
- Clinician can describe current state-of-the-art hirudotherapy practice
- Clinician can apply latest evidence-based protocols to patient care
- Clinician can engage with patients in informed-consent dialogue about emerging evidence
- Clinician can collaborate with peer institutions on outcomes benchmarking
- Clinician can advocate for evidence-based hirudotherapy adoption in their institutional context
Assessment Methods
- CME credit-hour documentation
- Annual self-assessment quiz (online)
- Optional Maintenance of Certification (MOC) module integration with specialty boards (ASPS, ABS)
- Optional practice improvement project documentation
Faculty Resources
- ASH Research Library (1,400+ indexed publications) for journal article review
- ASH Annual Update Series (online modules released annually)
- ASH National Meeting (planned 2027+) for in-person CME
- ASH Breakthrough Horizons + Discovery Timeline for frontier-context awareness
Cross-Level Competency Matrix
The following competencies appear across multiple training levels with increasing depth and autonomy:
| Competency | L1 Student | L2 Resident | L3 Fellow | L4 APP/Allied | L5 CME |
|---|---|---|---|---|---|
| Recognize indications for hirudotherapy | Aware | Identifies clinical signs | Leads patient-selection decision | Co-decides with physician | Maintains currency |
| Apply leech procedure | Observes | Performs under supervision | Performs autonomously, teaches others | Performs (per scope of practice) | Maintains skill (CME procedures) |
| Manage antibiotic prophylaxis | Aware | Orders per protocol | Adapts to patient context | Educates patient + adjusts | Updates per emerging evidence |
| Recognize and respond to adverse events | Aware of major events | Initial response, escalates | Comprehensive management | Initial response + escalation | Maintains currency |
| Counsel patients about procedure | Aware | Performs consent | Leads complex counseling | Performs counseling | Updates with new evidence |
| Document case | Aware of standards | Documents per protocol | Reviews quality | Documents per scope | Maintains currency |
| Conduct research / QI | N/A | Participates | Leads | Contributes data | Publishes/presents |
Adopting This Curriculum at Your Institution
Institutions wishing to adopt this curriculum framework can engage with ASH through several pathways:
Medical School Adoption
ASH provides slide decks, case-based discussion materials, and assessment items for medical school adoption. Engage via the contact form.
Residency Program Integration
ACGME-accredited residencies can adopt Level 2 framework. ASH provides faculty resources, simulation curriculum, and assessment tools.
Fellowship Partnership
Reconstructive microsurgery fellowships can integrate Level 3 framework. Includes ASH research collaboration network access.
Allied Health Training
Hospital nursing/pharmacy training programs can adopt Level 4 framework with hands-on simulation training.
CME Provider Status
ASH does not currently issue CME credit but is pursuing accreditation pathway with ACCME and equivalent international bodies.