Assessing the value of pharmacists' health-systemwide services: clinical pathways and treatment guidelines.

Practice guidelines and clinical pathways are increasingly being used as tools to enhance the quality of health care services and to manage costs better. This article reviews the role of guidelines and clinical pathways in health care as defined within the broader concept of practice policies. The factors that increase the effectiveness of practice policies are examined. These include the origin of development, dissemination technique, and implementation strategy. Policies that are internally developed and implemented with concurrent reminder systems are the most effective. Clinical pathways fit these criteria and are therefore highly effective policy types. The roles that pharmacists within health systems can undertake in policy development are described. These include writing the policy document, providing expert review, providing education, and most important, facilitating the desired outcomes by implementing pharmacy services that promote compliance with the guidelines. Examples of pharmacy-based guideline and pathway implementation from the Henry Ford Health System are described for inpatient anticoagulation, outpatient preferred drug formulary policy, and outpatient lipid therapy management.