![]() The body will eventually develop the necessary venous connections to drain the area of oxygen-depleted blood but if this does not occur rapidly enough, the pooling venous blood can produce enough swelling and pressure that fresh arterial blood may no longer be able to enter the re-connected limb. When appendages are re-attached following traumatic amputation, it is often possible to reconnect the larger arterial blood vessels, but not the thinner, more delicate venous vessels. This use of leech therapy (“hirudotherapy”) provides a good example of its current status. ![]() In the 1980’s, medicinal leech therapy got a big boost by plastic surgeons who used leeches to relieve venous congestion, especially in transplant surgery. Again leech therapy was commonly practiced in the 1800’s by American physicians treating a variety of diseases. Leech treatments were very popular during the Middle Ages. Dhanvantari, the Hindu God of Medicine, was first referenced in the 8th century B.C.E., and he is depicted as holding a leech in one of his four hands. Records indicate that Egyptians used leech therapy 3,500 years ago. Producers and Distributors of Medical-Grade Leeches.This page describes the following issues: They are also sometimes used to provide pain relief, and for many other therapeutic effects. Live leeches are currently used to treat blood-congested limbs, which otherwise might die or require amputation, if the pooling blood cannot be removed any other way. Leeches remove blood (“phlebotomize”) from their host, and they release pain-killing (anesthetic) and blood-thinning (anticoagulant) substances with their saliva. Leeches have been used in medicine for thousands of years.
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