There is as yet no precise definition of the multiple organ failure syndrome, or what is today more appropriately termed the multiple organ dysfunction syndrome (MODS). Clinically MODS can be considered as a sequential or concomitant occurrence of a significant derangement of function in two or more organ systems of the body, against a background of a critical illness. Organ dysfunction may be mild, moderate or severe, and multiple organs may show varying degrees of dysfunction. There is no universally acceptable classification system which defines parameters of organ specific failure. An ACCP/SCCM Consensus Conference which was held in 1991, defined MODS as “the presence of altered function in an acutely ill patient such that homeostasis cannot be maintained without intervention”. 1 This con