Pharmacologic review of thrombolytic agents.

Thrombolytic therapy has significantly reduced the morbidity and mortality that was once associated with acute myocardial infarction. Because of the substantial benefits associated with this therapy, investigation has intensified in search of the optimal agent or agents. Five agents are currently being investigated individually and in various combinations to determine which agent(s) will outperform the others in terms of reperfusion, patency, mortality reduction, and clinical events. Two of the agents, t-PA and scu-PA, are considered fibrin selective, whereas the other three, streptokinase, urokinase and APSAC are nonselective. Whether this distinction provides substantial benefit is still not known. All of the FDA-approved agents (streptokinase, t-PA, and APSAC) have demonstrated survival benefit and will continue to be administered in AMI patients. In addition, the 1990s begins a new era that includes broadened selection criteria for AMI patients as well as expanding cardiovascular indications for thrombolytic therapy. The challenge to nurses is to improve and implement nursing care practices at the same rapid pace set by the medical discipline. This includes astute assessment and observational skills necessary to prevent and detect potential complications associated with thrombolytic therapy. Rapidly changing medical techniques mandate ongoing nursing research, which is needed to determine the most effective interventions in reducing complications associated with thrombolytic therapy and in promoting positive adaptive behaviors in the AMI patient. Thrombolytic therapy is an intervention for the 1990s, and nursing care is essential in maintaining the beneficial effects of this dynamic therapy.