Leech Therapy Following Digital Replantation and Revascularization
Pickrell BB, Daly MC, Freniere B, Higgins JP, Safa B, Eberlin KR (2020) · Journal of Hand Surgery (American Volume) · n=0
Study Profile
- Design
- narrative evidence review and consensus protocol synthesis on leech therapy initiation and weaning for digital replantation and revascularization, authored by hand surgeons at Massachusetts General Hospital / Harvard Medical School, Curtis National Hand Center (MedStar Union Memorial), and The Buncke Clinic (San Francisco); proposes a treatment algorithm based on available evidence
- Sample size (n)
- 0
- Intervention
- Synthesis of published leech-therapy initiation and weaning protocols for digital venous congestion following replantation or revascularization, with focus on closing the gap between abundant initiation literature and the relative absence of consensus weaning guidelines
- Comparator
- Not applicable - methodology paper synthesizing existing protocols
- Primary endpoint
- Development of a consensus treatment algorithm for leech-therapy initiation, dosing, and weaning following digital replantation/revascularization
- Primary result
- Authors propose a structured algorithm for clinical decision-making across the leech-therapy course, with explicit guidance on weaning leeches as tissue color/turgor improves; emphasizes that few prior publications discussed weaning despite extensive coverage of initiation; algorithm intended as a practical decision aid pending higher-quality randomized data
- Follow-up duration
- not applicable - protocol/algorithm paper
- PMID
- 32493632
Key Findings
- First published consensus leech-therapy weaning algorithm from US hand-surgery academic centers
- Highlights a critical gap in the published protocol literature — initiation is well-described, weaning rarely is
- Co-authored by senior faculty at MGH/Harvard, Curtis National Hand Center, and The Buncke Clinic (San Francisco)
- Algorithm intended as a practical decision aid for hand surgeons under the K040187-cleared microsurgical-salvage indication
- Calls for higher-quality randomized data to refine optimal weaning parameters
Limitations
- Expert opinion / consensus synthesis only — no patient-level outcome data
- Algorithm not externally validated in a prospective cohort or RCT
- Recommendations reflect senior US academic-center practice and may not generalize to all institutional settings
- No direct comparison against alternative weaning approaches
- Methodology limits applicability to formal evidence-grading systems
Clinical Implications
Pickrell 2020 provides the most-cited US-academic consensus algorithm for initiating and weaning medicinal leech therapy in digital replantation and revascularization. For US clinicians performing emergency finger replantation under the K040187-cleared indication, the algorithm offers a practical decision framework, particularly for the under-discussed weaning phase. The publication should be paired with Buntic 2010 (initiation protocol) and Kameda 2025 (prophylactic vs reactive leech timing) for a comprehensive view of contemporary US digital-replant leech practice. The trial does not establish efficacy but anchors operational practice pending higher-quality randomized data.
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