Isolated limb perfusion

Overview
Isolated limb perfusion is a chemotherapeutic technique used to deliver high doses of cancer drugs directly into the bloodstream. A tourniquet is used to cut off blood flow of the arm or leg of a patient, which isolates the circulation of the limb. Blood is taken from the limb, and highly concentrated drugs are mixed with the blood. Next, the blood is recirculated into the body.

Purpose
The main purpose of the isolated limb perfusion technique is to deliver a very high dose of chemotherapy to tumour sites without causing overwhelming systemic damage. (Unfortunately, while these approaches can be useful against solitary or limited metastases, they are - by definition - not systemic and therefore do not treat distributed metastases or micrometastases).