Primary Outcome Measures:
- Incidence of ARF [ Time Frame: During ICU stay ]
Secondary Outcome Measures:
- Mortality [ Time Frame: ICU and Hospital mortality ]
Associations between angiotensin-converting enzyme gene polymorphism and occurrence and outcome of ARDS, and with respiratory complications post cardiopulmonary bypass have already been demonstrated. Based on physiological effects of angiotensin II, we hypothesized that the I allele of the angiotensin-converting enzyme Insertion/Deletion polymorphism may be associated with a higher risk of acute renal failure in critically ill patients.