Extracorporeal Circulation
| Definition: |
Diversion of blood flow through a circuit located outside the body but continuous with the bodily circulation. |
| Notes: |
"diversion of blood flow through a circuit located outside the body but continuous with the bodily circulation"; GEN & unspecified: prefer specifics; do not confuse with CARDIOPULMONARY BYPASS or ASSISTED CIRCULATION; do not use /util except by MeSH defin |
| Previously Indexed: |
Heart-Lung Machine (1966) |
Extracorporeal Circulation Categories.
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Cardiopulmonary Bypass - Diversion of the flow of blood from the entrance of the right atrium directly to the aorta (or femoral artery) via an oxygenator thus bypassing both the heart and lungs. |
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Heart Bypass, Left - Diversion of the flow of blood from the pulmonary veins directly to the aorta, avoiding the left atrium and the left ventricle (Dorland, 27th ed). This is a temporary procedure usually performed to assist other surgical procedures. |
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Perfusion, Regional - Neoplasm drug therapy involving an extracorporeal circuit with temporary exclusion of the tumor-bearing area from the general circulation during which high concentrations of the drug are perfused to the isolated part. |
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Ultrafiltration - The separation of particles from a suspension by passage through a filter with very fine pores. In ultrafiltration the separation is accomplished by convective transport; in DIALYSIS separation relies instead upon differential diffusion. Ultrafiltration occurs naturally and is a laboratory procedure. Artificial ultrafiltration of the blood is referred to as HEMOFILTRATION or HEMODIAFILTRATION (if combined with HEMODIALYSIS). |
Extracorporeal Circulation Definitions and Terms
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