Management of risk factors among ambulatory patients at high cardiovascular risk in Canada: a follow-up study

Can J Cardiol. 2013 Dec;29(12):1586-92. doi: 10.1016/j.cjca.2013.06.013. Epub 2013 Sep 13.

Abstract

Background: Limited longitudinal data are available on attainment of guideline-recommended treatment targets among ambulatory patients at high risk for cardiovascular events.

Methods: The Vascular Protection registry and the Guidelines Oriented Approach to Lipid Lowering registry recruited 8056 ambulatory patients at high risk for, or with established cardiovascular disease; follow-up was not protocol-mandated. We stratified the study population according to the availability of 6-month follow-up data into 2 groups, and compared their clinical characteristics, medication profile, and attainment of contemporaneous guideline-recommended blood pressure (BP) and lipid targets both at enrollment and at 6-month follow-up.

Results: Of the 8056 patients, only 5371 (66.7%) patients had 6-month follow-up, who had significant increases in the use of statins and antihypertensive medications at 6 months compared with at enrollment (all P < 0.001). Compared with at time of enrollment, more patients attained the BP target (45.3% vs 42.3%), low-density lipoprotein cholesterol (LDL-C) target (62.8% vs 45.8%), and both targets (29.7% vs 21.6%) at 6-month follow-up (all P < 0.001). In multivariable analysis, independent predictors of attainment of BP target included history of coronary artery disease and heart failure (all P ≤ 0.001). On the other hand, advanced age, diabetes, coronary artery disease, previous coronary revascularization, and use of statin therapy were independently associated with achievement of LDL-C target (all P < 0.005).

Conclusions: Most (> 50%) patients without 6-month follow-up did not attain guideline-recommended BP and LDL-C targets at enrollment. Although BP and lipid control improved at 6 months among patients with follow-up, most still failed to achieve optimal BP and lipid targets. Effective ongoing quality improvement measures and follow-up are warranted.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Ambulatory Care*
  • Antihypertensive Agents / therapeutic use*
  • Blood Pressure / drug effects
  • Canada
  • Cardiovascular Diseases / etiology*
  • Cardiovascular Diseases / prevention & control*
  • Cholesterol, LDL / blood
  • Drug Utilization / statistics & numerical data
  • Female
  • Follow-Up Studies
  • Guideline Adherence
  • Humans
  • Hypercholesterolemia / complications
  • Hypercholesterolemia / drug therapy*
  • Hypertension / complications
  • Hypertension / drug therapy*
  • Hypolipidemic Agents / therapeutic use*
  • Male
  • Middle Aged
  • Multivariate Analysis
  • Registries
  • Risk Factors

Substances

  • Antihypertensive Agents
  • Cholesterol, LDL
  • Hypolipidemic Agents