Heart Health

17 June 2016

Pharmacists can help lower heart disease risk

In a study, people receiving pharmacists' care lowered their estimated future risk of heart disease by more than 5 percent.

People with poorly controlled risk factors for heart disease could cut their chances of future trouble by having pharmacists help manage their care, new Canadian research suggests.

Any reduction is good

For the study, trained community pharmacists recruited people at high risk for heart attack and stroke. Half of the study participants received "medication therapy management" in tandem with a pharmacist and half received "usual" care.

After three months, people who received intensive services to help them meet treatment targets had a 21 percent lower risk of future heart events when compared with those who received usual care, the study found.

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People receiving pharmacists' care lowered their estimated future risk of heart disease by more than 5 percent from the beginning of the study to its conclusion three months later. There was little change in risk for those receiving usual care.

"Since the risk for [heart] events is so high, any reduction is a good one," said study author Ross Tsuyuki, a professor of medicine at the University of Alberta. He added that "it is likely that we have underestimated the real reduction in risk," since many risk factors for heart disease change slowly.

The study focused on reaching out to people with multiple risk factors, consulting with them, prescribing needed medicines and adjusting medication dosages.

Delivering better care

Tsuyuki and his team believe the study may be the first large randomised trial of its kind.

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Since cardiovascular disease is the leading cause of death in the United States and worldwide, such an intervention could have major public health benefits, the study authors concluded.

The report is published in the Journal of the American College of Cardiology.

Dr Larry Weinrauch, a cardiologist and assistant professor at Harvard Medical School in Boston, said the study highlights problems with health care delivery, particularly for high-risk patients taking multiple medications.

"In the US, I think we ought to be looking at systems for picking up those patients [and delivering] better care to them," he said.

Whether pharmacists or other health practitioners provide that care is less important, said Weinrauch, who wrote an editorial accompanying the study.

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Tsuyuki said that while it will take "political will" to make the necessary changes, the United States could benefit from replicating this model of care.

Large and clinically significant improvements

"You could have about 400,000 pharmacists available to help with your number one killer," he said.

Heart disease costs the United States an estimated $444 billion annually in health-care costs and lost productivity, the study authors noted.

Some US pharmacists already manage people with chronic conditions and complex medication regimens. But it's not routine because reimbursement opportunities are limited. Pharmacists, unlike doctors, are not considered "providers" of care under the federal Medicare statute and cannot bill the health programme directly, the researchers said.

By contrast, pharmacists in Alberta, Canada, get reimbursed by the provincial health plan $100 (R1,521) to $120 (R1,840) a year for a comprehensive medication review and $20 (R304)  to $25 (R380)  for follow-up visits, Tsuyuki said.

For the study, pharmacists at 56 pharmacy-based clinics recruited 723 patients, who were randomly assigned to the intervention or usual care.

Some large and clinically significant improvements in individual risk factors emerged in the pharmacist-care group compared with the usual care control group, Tsuyuki noted.

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People with high blood pressure had a 9.4 mm Hg reduction in systolic blood pressure – the top number in a blood pressure reading. An optimal systolic reading is 120 mm Hg or less. But, only 28 percent of the control group reached the recommended target, versus 51 percent of the pharmacist-care group, the study found.

Short duration

Patients with diabetes in the pharmacist-care group dropped their haemoglobin A1c – an indicator of blood sugar levels – from 8.6 percent at the start of the study to 7.6 percent three months later. The goal is a reading of 7 percent or less. But only 25 percent of the control group achieved it, compared with 42 percent of patients receiving pharmacist care, the investigators found.

In addition, significantly more patients receiving pharmacist care reached the target for LDL, or "bad" cholesterol, than those in the control group (56 percent versus 46 percent).

The pharmacist-care group also had a 20 percent greater reduction in smoking compared to the control group, according to the report.

One limitation of the study was its short duration; pharmacists expressed concern over continuing to provide usual care to high-risk patients, the researchers said. After three months, control group members were invited to participate in the pharmacist-care programme.

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