Medicinal leech therapy in venous congestion and various ulcer forms: Perspectives of Western, Persian and Indian medicine
Koeppen D, Aurich M, Pasalar M, Rampp T (2020) · Journal of Traditional and Complementary Medicine · n=0
Study Profile
- Design
- narrative review article comparing medicinal leech therapy practice for venous congestion and ulcers across Western, Persian, and Indian (Ayurvedic/Unani) medicine traditions
- Sample size (n)
- 0
- Intervention
- Synthesis of leech therapy approaches for venous congestion of skin and tissues plus various ulcer forms (diabetic foot, Buerger's disease, peripheral arterial occlusive disease, cutaneous leishmaniasis, pressure ulcers)
- Comparator
- Cross-tradition comparison of approach, indication, and follow-up across Western, Persian, and Indian medicine
- Primary endpoint
- Qualitative assessment of leech therapy applications in venous congestion and ulcer healing
- Primary result
- Western medicine focuses on reconstructive/plastic surgery venous congestion; Persian and Indian medicine apply leech therapy across multiple ulcer types (diabetic foot, Buerger's, PAOD, cutaneous leishmaniasis); thrombolytic, anti-coagulant, blood/lymph-enhancing, anti-inflammatory, and pain-relieving effects are common across traditions; evidence base limited to case reports and series for non-Western indications
- Follow-up duration
- not applicable (review)
- PMID
- 32257872
Key Findings
- Cross-tradition narrative review explicitly comparing Western, Persian, and Indian medicine approaches to leech therapy in venous congestion and ulcers
- Documents Western practice concentration on plastic/reconstructive surgery venous congestion (FDA K040187 indication)
- Documents Persian/Indian practice expansion to ulcer forms including diabetic foot, Buerger's disease, PAOD, and cutaneous leishmaniasis
- Identifies translational research gap between traditional ulcer-care indications and evidence-based Western practice
- Calls for modern evidence-based research methods to elucidate true value of leech therapy in wound healing
Limitations
- Narrative review only - no systematic search or quality grading
- Co-author affiliations with leech supplier (Biebertaler Blutegelzucht) create COI concerns
- Mixes case reports, case series, and traditional practice testimonies without weighted evidence assessment
- Limited primary RCT evidence for the Persian/Indian indications discussed
- No GRADE rating
Clinical Implications
Koeppen 2020 is the most useful single reference for clinicians wanting to understand the cross-cultural landscape of medicinal leech therapy in venous congestion and ulcers. It clearly distinguishes the FDA-cleared Western reconstructive-surgery indication from the broader Persian/Indian ulcer-care tradition. For US clinicians, the review provides important context but does not justify expanding clinical use beyond the FDA K040187 indication without proper trial evidence. The review's principal value is in illustrating where future translational research could productively be focused (diabetic foot ulcers in particular).
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