Do electronic medical records improve quality of care?

Better informed

The EMR technology gives health care providers information in formats that were not possible with paper charts. Primary care providers can now view and print graphs of values such as weight, cholesterol levels, and blood pressure, tracking changes over time. The EMR improves attainment of chronic disease management, prevention, and screening targets, as shown in studies that demonstrated improved quality measures.² Electronic medical records can provide treatment goals or alerts to remind providers when certain prevention and screening maneuvers are due or out of date. The EMR also provides access to information and resources that point primary care providers toward the best approach to the various conditions they encounter in practice. With improved access to laboratory data there is a reduction in duplication and costs.³ Disease outcomes can be improved, as shown by a randomized clinical trial of 21 practices that demonstrated a reduction in blood pressure in patients with hypertension who received screening for and advice on high-risk drinking, alcohol abuse, or alcohol dependence through an EMR intervention.⁴ Numerous resources and tools, such as assessments for drug interactions, Framingham calculators, and body mass index calculators, can be accessed quickly to better inform clinicians and their patients. These benefits are not lost on patients, as patients’ perceptions of the quality of care that they receive have been positively associated with the use of EMRs.⁵

The structured EMR data provide the potential to access point-of-care data that can be used to inform practice and conduct research. With meaningful use, including standard and consistent data entry in specific fields, the EMR data provide the physician with valuable practice-level information. This information can be used for practice-level interventions such as identifying patients who have not received bowel cancer screening or mammograms. The information provides feedback to the primary care providers about the quality of their care, such as screening rates and preventive target achievements. Point-of-care EMR data can be used to study issues in primary care, as demonstrated by the work of the Canadian Primary Care Sentinel Surveillance Network. Detailed analysis of EMR data on medications used in the primary care setting provides new information such as drug repurposing signals, as demonstrated in a recent study that identified a decrease in mortality in cancer patients treated with metformin.⁶

Improved relationships

The EMR improves communication and relationships between family physicians and their multidisciplinary team members.⁷ Chart summaries, medical notes, and consultation letter templates provide consultants and various team members with legible, structured information. The prescriptions are in a clear and structured format, which reduces medical errors in prescribing.³ Electronic medical records facilitate requests and task assignment to various team members. Booking schedules are easily accessed by clinical staff, clinicians, and, in some cases, patients who might be able to book appointments remotely. Electronic medical records might also improve communication with patients through the use of patient portals and personal health records, which more effectively engage patients in managing their own care.⁸

Beneficial effect on work flow

The effect of EMRs on the work lives of family physicians has been positive, as demonstrated by physicians’ largely favourable perceptions of EMRs.^1,9 Although the implementation of an EMR can lead to a subjective feeling of increased time requirements by family physicians, studies have found that implementation does not result in a significant decrease in patient access³ or a loss of billings.¹⁰ Canadian EMR research suffers from variation in vendors, study context, methods, and outcome measures. However, despite these deficiencies, studies are emerging that demonstrate numerous benefits of the EMR.³ The EMR allows clinicians to see a larger number of patients through better access to comprehensive patient histories that include clinical data, which might help physicians spend less time searching for results and reports.³ The perceived benefits include remote access to patient charts, improved laboratory result availability, medication error alerts, and reminders for preventive care.