Risk Factors for Gastrointestinal Bleeding in Critically Ill Patients
The efficacy of stress ulcer prophylaxis for the prevention of gastrointestinal bleeding in the critically ill has led to its widespread use. Side effects and cost of prophylaxis necessitate targeting the therapy to those patients most likely to benefit. A prospective multicenter cohort study was conducted to evaluate potential risk factors for stress ulceration in patients admitted to intensive care units. Two strong independent risk factors for bleeding were identified: respiratory failure and coagulopathy. Since few critically ill patients have clinically significant gastrointestinal bleeding (defined as overt bleeding in association with hemodynamic compromise or the need for blood transfusion), prophylaxis can safely be withheld unless they require mechanical ventilation or have a coagulopathy.