Newer, more sophisticated treatment modalities have resulted in increased s
urvival for many cancer patients. Unfortunately, many of these therapies re
sult in serious, life-threatening complications. Decisions to admit cancer
patients to the intensive care unit for life sustaining therapy are often d
ifficult and emotionally charged. Because of the high mortality rate among
critically ill cancer patients, end of life care is frequently managed in t
he critical care setting. This article focuses on the ethical, medical, leg
al, and economic issues surrounding end of life decisions for critically il
l patients.