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Published on: February 28, 2012
Effect of Clinical Decision Support Alerts on Anticoagulation Management in Atrial Fibrillation
Joseph E Capito1, Brian Z Dilcher2, Zulkifl I Jafary3
1Department of Family Medicine, West Virginia University, Morgantown, West Virginia, United States.
Insights
Electronic health record alerts for atrial fibrillation (AF) anticoagulation management improved provider engagement. Real-time risk score integration supported clinical decisions, particularly for initiating anticoagulation in high-risk patients.
Area of Science:
- Internal Medicine
- Cardiology
- Health Informatics
Background:
- Anticoagulation decisions in atrial fibrillation (AF) require balancing stroke and bleeding risks using CHA₂DS₂-VASc and HAS-BLED scores.
- Manual calculation of these risk scores is time-consuming and prone to inconsistency.
- Electronic Health Record (EHR) integration offers a potential solution for streamlining risk assessment.
Purpose of the Study:
- To evaluate the impact of real-time, EHR-integrated alerts on provider behavior in anticoagulation management for AF patients.
- To assess physician and non-physician provider (NPP) interaction with an EHR-based advisory tool.
Main Methods:
- A single-arm observational study was conducted at a rural academic primary care clinic.
- An EHR rules-based engine calculated CHA₂DS₂-VASc and HAS-BLED scores and displayed them via non-interruptive alerts.
- Provider interactions (initiation of anticoagulation, documented rationale, exclusion diagnosis) were analyzed using chi-square testing.
Main Results:
- Among 313 patients triggering alerts, 16.9% were newly anticoagulated, and 35.8% had a documented rationale for not initiating therapy.
- 50.5% of patients experienced a clinically meaningful interaction with the alert tool (χ² = 9.82, p = 0.0017).
- The overall alert success rate across 2,447 encounters was 19.8%, indicating significant point-of-care engagement.
Conclusions:
- Real-time EHR alerts displaying stroke and bleeding risk scores are associated with meaningful provider engagement in AF anticoagulation management.
- The tool demonstrated potential in supporting point-of-care decision-making, particularly for initiating anticoagulation in high-risk individuals.
- Further investigation of EHR-based advisories is warranted to enhance anticoagulation management in AF.
Abstract:
Anticoagulation decisions in atrial fibrillation (AF) depend on balancing stroke and bleeding risk, often guided by CHA2DS2-VASc (a validated clinical score used to estimate stroke risk in patients with atrial fibrillation) and HAS-BLED (a validated clinical score used to estimate bleeding risk in patients treated with anticoagulation) scores. Manual calculation of these scores can be time-consuming and inconsistently performed.This study evaluated whether implementing real-time, electronic health record (EHR)-integrated alerts in a rural academic primary care clinic would influence physician and non-physician provider (NPP) behavior around anticoagulation management.A single-arm observational study was conducted from March 2024 to September 2025 at a West Virginia University (WVU) Family Medicine Clinic. A rules-based engine in Epic calculated risk scores using 1 year of structured data and displayed them within a non-interruptive "Our Practice Advisory" alert. Physician or NPP interaction-defined as initiation of anticoagulation, documentation of rationale, or adding exclusion diagnosis to problem list-was analyzed using chi-square testing.Among 313 patients triggering the alert, 53 (16.9%) were newly started on anticoagulation, 112 (35.8%) had a documented rationale for not initiating therapy, and 2 had the exclusion diagnosis added to their chart. In total, 50.5% of patients had a clinically meaningful interaction with the tool (χ2 = 9.82, p = 0.0017). Across 2,447 encounters, the overall alert success rate was 19.8%, reflecting encounter-level engagement. Common acknowledgment reasons included corrective measures completed, high bleeding risk, recent procedures, and patient refusal. Physician and NPP comments informed iterative refinement, leading to expanded acknowledgment options.Real-time alerts displaying stroke and bleeding risk scores were associated with meaningful physician and NPP engagement, particularly for initiating anticoagulation in high-risk patients. While most interactions reflected review rather than treatment change, the tool appeared to support point-of-care decision-making. These findings support further investigation of EHR-based advisories to improve anticoagulation management in AF.
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