Leech therapy and bleeding wound techniques to relieve venous congestion

Experimental study published in J Reconstr Microsurg (1990)

Última actualización: June 18, 2026Revisado por: ASH Editorial Board

Research article — evidence reviewArticle reference

Evidence: Research reportEnsayos clínicosSmoot EC et al. · Journal of reconstructive microsurgery, 1990

Abstract

Temporary restoration of capillary skin blood flow can be established by using leeches or by the creation of a dermal wound and the promotion of continued bleeding from the wound site in a flap with venous occlusion. An increasing restoration of capillary flow occurred with initial application of the leech and tended to exceed other techniques of restoring flow. However, all techniques of exsanguination, including leech therapy, restored very low perfusion over a two-hour course of therapy for a volume of tissue simulating a distal finger replant. The temporary increase in flap perfusion with a single leech application was greatest during the feeding activity of the leech and tapered off after the leech was satiated, to approximate flows achieved with local heparin injection and a punch wound.

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

Publication typeJournal Article

Indexed MeSH termsAnimalsBloodlettingCapillariesDermatologic Surgical ProceduresHeparinHumansLasersLeechesPuncturesRatsRats, Inbred StrainsRegional Blood Flow

Resumen

Compares leech application to creation of bleeding dermal wound for restoring capillary skin flow in flaps with venous occlusion. Leech feeding produced the greatest temporary perfusion improvement.

Por qué esto importa para la hirudoterapia

This study compares techniques for relieving venous congestion — including leech therapy, dermal wounding, and local heparin injection — in a tissue model simulating a flap with venous occlusion, measuring capillary blood flow restoration over a two-hour period. Leech application produced the greatest initial increase in flap perfusion during active feeding, but perfusion tapered after satiation and ultimately approximated flows achieved by heparin injection and punch wounding; all techniques restored only very low perfusion levels. This is directly relevant to ASH's domain as an experimental evaluation of leeching for venous congestion relief. However, the abstract does not specify the species used, and findings suggest modest, temporary perfusion restoration rather than robust clinical efficacy.

Citación

Leech therapy and bleeding wound techniques to relieve venous congestion.

Smoot EC et al. · Journal of reconstructive microsurgery, 1990

DOI

Contexto clínico relacionado

Explore cómo esta investigación se conecta con la práctica clínica

Clinical Evidence Clinical Applications Microsurgery Outcomes Surgery Chronic Venous Insufficiency Venous Disease Otolaryngology

Aviso legal — investigación y educación

La información en esta página se proporciona únicamente con fines educativos e informativos y no constituye asesoramiento médico, diagnóstico o recomendaciones de tratamiento. Los resúmenes de evidencia clínica reflejan la literatura publicada revisada por pares y no implican eficacia terapéutica fuera de los contextos autorizados por la FDA.

La autorización FDA 510(k) para sanguijuelas medicinales se limita a indicaciones específicas. Las aplicaciones en investigación y fuera de indicación se identifican como tales. Los profesionales deben consultar las directrices vigentes de la FDA, los protocolos institucionales y las normativas estatales aplicables antes del uso clínico.

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Añadido a la biblioteca ASH: May 27, 2026 · Última actualización del sitio: June 18, 2026