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A computerized intervention to decrease the use of calcium channel blockers in hypertension

R A Rossi1, N R Every

  • 1Veterans Affairs Puget Sound Health Care System, and Department of Medicine, University of Washington School of Medicine, Seattle, USA.

Journal of General Internal Medicine
|December 31, 1997
PubMed
Summary
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A computer-assisted reminder significantly improved adherence to hypertension treatment guidelines. This intervention successfully reduced the use of calcium channel blockers, promoting better patient care.

Area of Science:

  • Internal Medicine
  • Clinical Informatics
  • Pharmacology

Background:

  • Hypertension management requires adherence to clinical guidelines.
  • Calcium channel blockers are often used but not recommended for initial therapy.
  • Prescribing habits may not always align with current hypertension treatment guidelines.

Purpose of the Study:

  • To evaluate if a computer-assisted reminder system can modify prescribing habits for hypertension.
  • To assess guideline adherence in hypertension treatment within a general internal medicine clinic.
  • To specifically examine the impact on the use of calcium channel blockers.

Main Methods:

  • A randomized controlled trial was conducted.
  • General Internal Medicine Clinic providers were randomized into intervention and control groups.

Related Experiment Videos

  • An automated computer query identified eligible patients and their providers; guideline reminders were placed in intervention group charts.

    • Main Results:

    • Intervention providers switched 11.3% of patients from calcium channel blockers, compared to <1.0% in the control group (p < .0001).
    • Reasons for not switching included angina, other indications, adverse effects, or inadequate control with first-line therapy.
    • 23.6% of patients without contraindications were switched from calcium channel blockers to first-line agents.

    Conclusions:

    • Computerized, clinic-based interventions enhance compliance with general hypertension treatment guidelines.
    • This intervention effectively decreased the use of calcium channel blockers for hypertension treatment.
    • Automated reminders can be a valuable tool for improving evidence-based prescribing practices.