Pharmacotherapy · 2011
Blood pressure level attainment among patients with coronary artery disease and uncontrolled blood pressure.
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McConnell Karen J, Morris Jessica L, Delate Thomas, Cymbala Alicia A, Hornak Roseanne, Kauffman Amy B, McGinnis Brandy D, Clinical Pharmacy Cardiac Risk Service Study Group
Аннотация
STUDY OBJECTIVES: To determine the proportion of patients with coronary artery disease (CAD) and uncontrolled blood pressure who attained a blood pressure of less than 130/80 mm Hg, and to compare patient- and health system- specific characteristics and identify factors independently associated with attaining this blood pressure level.
DESIGN: Retrospective, longitudinal, cohort study.
SETTING: Health maintenance organization.
PATIENTS: A cohort of 1380 patients (14%) who had uncontrolled blood pressure out of 9785 adults with established CAD enrolled in the Clinical Pharmacy Cardiac Risk Service.
MEASUREMENTS AND MAIN RESULTS: Uncontrolled hypertension was defined as a mean of two consecutive blood pressure readings of 140/90 mm Hg or higher in 2006 or 2007, most proximal to December 31, 2007 (baseline). The cohort was followed from January 1, 2008-June 30, 2009 (follow-up). The follow-up blood pressure level was the mean of the last two consecutive blood pressure readings most proximal to June 30, 2009. Of the 1380 patients, 34.9% (482 patients), 34.0% (469), and 31.1% (429) attained a blood pressure below 130/80, 130/80-139/89, and 140/90 mm Hg or higher, respectively, at follow-up. Significantly more patients in the less than 130/80 mm Hg group were male, had Medicare insurance, had lower baseline systolic and/or diastolic blood pressures, and had a higher Chronic Disease Score compared with the other groups. For every additional clinic visit, there was a 3% increased likelihood of attaining a blood pressure below 130/80 mm Hg (adjusted odds ratio [OR] 1.03, 95% confidence interval [CI] 1.01-1.04). Patients experiencing a cardiac event during the follow-up period were approximately twice as likely to attain a blood pressure below 130/80 mm Hg (OR 1.97, 95% CI 1.04-3.77) compared with those who did not have a subsequent event.
CONCLUSION: Despite systematic and aggressive treatment of blood pressure in patients with CAD and uncontrolled blood pressure, a minority of patients attained a blood pressure of less than 130/80 mm Hg. Considering that higher utilization of the health care system was associated with reaching this blood pressure level and that a similar number of therapeutic interventions in the groups resulted in variable success for blood pressure lowering, attaining a blood pressure level of less than 130/80 mm Hg may be difficult for some patients with CAD.
DESIGN: Retrospective, longitudinal, cohort study.
SETTING: Health maintenance organization.
PATIENTS: A cohort of 1380 patients (14%) who had uncontrolled blood pressure out of 9785 adults with established CAD enrolled in the Clinical Pharmacy Cardiac Risk Service.
MEASUREMENTS AND MAIN RESULTS: Uncontrolled hypertension was defined as a mean of two consecutive blood pressure readings of 140/90 mm Hg or higher in 2006 or 2007, most proximal to December 31, 2007 (baseline). The cohort was followed from January 1, 2008-June 30, 2009 (follow-up). The follow-up blood pressure level was the mean of the last two consecutive blood pressure readings most proximal to June 30, 2009. Of the 1380 patients, 34.9% (482 patients), 34.0% (469), and 31.1% (429) attained a blood pressure below 130/80, 130/80-139/89, and 140/90 mm Hg or higher, respectively, at follow-up. Significantly more patients in the less than 130/80 mm Hg group were male, had Medicare insurance, had lower baseline systolic and/or diastolic blood pressures, and had a higher Chronic Disease Score compared with the other groups. For every additional clinic visit, there was a 3% increased likelihood of attaining a blood pressure below 130/80 mm Hg (adjusted odds ratio [OR] 1.03, 95% confidence interval [CI] 1.01-1.04). Patients experiencing a cardiac event during the follow-up period were approximately twice as likely to attain a blood pressure below 130/80 mm Hg (OR 1.97, 95% CI 1.04-3.77) compared with those who did not have a subsequent event.
CONCLUSION: Despite systematic and aggressive treatment of blood pressure in patients with CAD and uncontrolled blood pressure, a minority of patients attained a blood pressure of less than 130/80 mm Hg. Considering that higher utilization of the health care system was associated with reaching this blood pressure level and that a similar number of therapeutic interventions in the groups resulted in variable success for blood pressure lowering, attaining a blood pressure level of less than 130/80 mm Hg may be difficult for some patients with CAD.