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Wei-Ching Chang

Publications and source records attributed to Wei-Ching Chang.

20 records · Page 2Linked to original sources

A randomized trial of the effect of community pharmacist intervention on cholesterol risk management: the Study of Cardiovascular Risk Intervention by Pharmacists (SCRIP).

BACKGROUND: Despite clear evidence for the efficacy of lowering cholesterol levels, there is a deficiency in its real-world application. There is a need to explore alternative strategies to address this important public health problem. This study aimed to determine the effect of a program of community pharmacist intervention on the process of cholesterol risk management in patients at high risk for cardiovascular events. METHODS: A randomized controlled trial conducted in 54 community pharmacies (1998-2000) included patients at high risk for cardiovascular events (with atherosclerotic disease or diabetes mellitus with another risk factor). Patients randomized to pharmacist intervention received education and a brochure on risk factors, point-of-care cholesterol measurement, referral to their physician, and regular follow-up for 16 weeks. Pharmacists faxed a simple form to the primary care physician identifying risk factors and any suggestions. Usual care patients received the same brochure and general advice only, with minimal follow-up. The primary end point was a composite of performance of a fasting cholesterol panel by the physician or addition or increase in dose of cholesterol-lowering medication. RESULTS: The external monitoring committee recommended early study termination owing to benefit. Of the 675 patients enrolled, approximately 40% were women, and the average age was 64 years. The primary end point was reached in 57% of intervention patients vs 31% in usual care (odds ratio, 3.0; 95% confidence interval, 2.2-4.1; P<.001). CONCLUSIONS: A community-based intervention program improved the process of cholesterol management in high-risk patients. This program demonstrates the value of community pharmacists working in collaboration with patients and physicians.

Alberta↗

Does chronic Chlamydia pneumoniae infection increase the risk of myocardial injury? Insights from patients with non-ST-elevation acute coronary syndromes.

BACKGROUND: Cumulative evidence suggests a positive association between Chlamydia pneumoniae (Cpn) infection and risk of future coronary events among patients with stable coronary artery disease. However, its prognostic role in unstable coronary syndromes is less well defined. Because Cpn immunoglobulin A (IgA) may be a more reliable indicator of chronic infection than immunoglobulin G (IgG), we speculated that in patients with non-ST-elevation acute coronary syndromes (ACS), this marker might serve as a more useful prognostic tool. Accordingly, we evaluated plasma samples acquired at presentation in 178 patients with ACS for a possible association between Cpn IgA titer and biochemical evidence of myocardial injury. METHODS: Cpn IgG (positive if > or =1:32), and IgA titers (positive if > or =1:16) were measured by use of the microimmunofluorescence technique in 70 patients with ACS in whom myocardial injury developed associated with their presenting events (elevated CK-MB and/or troponin I); and in 108 patients with ACS without such injury. The odds ratios (ORs) for myocardial injury associated with consecutive antibody titers were determined for each of Cpn IgG and IgA. Multiple logistic regression was applied to adjust for key baseline characteristics. RESULTS: Median age of subjects was 64 years; 63% were male and 33% were smokers. The median antibody titers among those with and without myocardial injury respectively were as follows: IgG (1:128 vs 1:128), IgA (1:32 vs <1:16, P =.2). The adjusted ORs for myocardial injury associated with consecutive IgA titers were as follows: IgA > or =1:16, adjusted OR 1.49 (P =.22); > or =1:32, OR 1.95 (P =.04); > or =1:64, OR 1.37 (P =.38); > or =1:128, OR 0.77 (P =.55). No significant trend was found for any IgG titer. CONCLUSIONS: Among patients with non-ST-elevation ACS, a Cpn IgA > or =1:32 at presentation was associated with a significantly higher risk of myocardial injury complicating the presenting event.

Aged↗