Improving allergy alerting in a computerized physician order entry system

Computerized physician order entry has been shown to reduce the frequency of serious medication errors. Decision support tools such as alerting functions for patient medication allergy are a key part of these applications. However, optimal performance requires iterative refinement. As systems become increasingly complex, mechanisms to monitor their performance become increasingly critical. We analyzed trend data obtained over a five-year period that showed decreasing compliance to allergy alert functions within computerized order entry. Many medication-allergy pairs were being consistently overridden. Renewal policies affecting reordering narcotics also contributed heavily to this trend. Each factor revealed a system-wide trend that could result in suggestions for policy or software change. Monitoring trends such as these is very important to maintain software correctness and ensure user trust in alerting systems, so users remain responsive to computerized alerts.

P-CAPE: a high-level tool for entering and processing clinical practice guidelines. Partners Computerized Algorithm and Editor

The Partners Computerized Algorithm Processor and Editor (P-CAPE) is a high-level tool intended to remove the programming bottleneck for implementing practice guidelines in our computer-based record system, and to integrate guideline-based advice into the clinician's workflow. P-CAPE has three major components: 1) An Editor that allows an analyst to enter the parameters of a guideline in the form of an algorithm; 2) A Navigator that processes the steps of the guideline and logs all transactions in a patient-specific file; and 3) A clinician Notifier that sends messages to a patient's covering clinician, seeking data or presenting recommendations and order sets that can be processed by the system. P-CAPE's guideline object model was adapted from the InterMed Collaboratory GuideLine Interface Format (GLIF).

Detecting alerts, notifying the physician, and offering action items: a comprehensive alerting system

We developed and evaluated a system to automatically identify serious clinical conditions in inpatients. The system notifies the patient's covering physician via his pager that an alert is present and offers potential therapies for the patient's condition (action items) at the time he views the alert information. Over a 6 month period, physicians responded to 1214 (70.2%) of 1730 alerts for which they were paged; they responded to 1002 (82.5% of the 1214) in less than 15 minutes. They said they would take action in 71.5% of the alerts, and they placed an order directly from the alert display screen in 39.4%. Further study is needed to determine if this alerting system improves processes or outcomes of care.