IntroductionAlthough atherosclerotic disease cannot be cured, risk of recurrent events can be reduced by application of evidence-based treatment protocols involving aspirin, beta blockers, angiotensin-converting enzyme inhibitors or angiotensin receptor blockers, and statin medications. We studied atherosclerotic event rates in a patient population treated before and after the development of aggressive risk factor reduction treatment protocols.Material and methodsWe performed a retrospective chart review of patients presenting for follow-up treatment of coronary artery disease in a community cardiology practice, comparing atherosclerotic event rates and medication usage in a 2-year treatment period prior to 2002 and a 2-year period in 2005-2008. Care was provided in both the early and later eras by 7 board-certified cardiologists in a suburban cardiology practice. Medication usage was compared in both treatment eras. The primary outcome was a composite event rate of myocardial infarction, cerebrovascular events, and coronary interventions.ResultsThree hundred and fifty-seven patients were studied, with a follow-up duration of 12.1 (±3.5) years. There were 132 composite events in 104 patients (29.1%) in the early era compared to 40 events in 33 patients (9.2%) in the later era (p < 0.0001). From the early to the later eras, there was an increase in use of β-blockers (66% to 83%, p < 0.0001), angiotensin-converting enzyme inhibitors or angiotensin receptor blockers (34% to 80%, p < 0.0001), and statins (40% to 90%, p < 0.0001).ConclusionsApplication of aggressive evidence-based medication protocols for treatment of atherosclerosis is associated with a significant decrease in atherosclerotic events or need for coronary intervention.
The objective was to investigate the incidence of thromboembolic stroke in patients with chronic kidney disease (CKD) and atrial fibrillation (AF) treated with and without warfarin. We investigated the incidence of thromboembolic stroke and of major bleeding in 399 unselected patients with CKD and AF treated with warfarin to maintain an international normalized ratio (INR) between 2.0 and 3.0 (N = 232) and without warfarin (N = 167). Of the 399 patients, 93 (23%) were receiving hemodialysis, and 132 (33%) had an estimated glomerular filtration rate (GFR) of 15 mL/min/1.73 m 2 At the 31-month follow-up of patients treated with warfarin and 23-month follow-up of patients not treated with warfarin, thromboembolic stroke developed in 21 of 232 patients (9%) treated with warfarin and in 43 of 167 patients (26%) not treated with warfarin (P 0.001). Major bleeding occurred in 32 of 232 patients (14%) treated with warfarin and in 15 of 167 patients (9%) not treated with warfarin (P not significant). Stepwise Cox regression analysis showed that significant independent predictors of thromboembolic stroke were use of warfarin (odds ratio, 0.28; P 0.0001) and prior stroke or transient ischemic attack (odds ratio, 2.9; P 0.05). In conclusion, this observational study showed that CKD patients with AF treated with warfarin to maintain an INR between 2.0 and 3.0 had a significant reduction in thromboembolic stroke and an insignificant increase in major bleeding.
SummaryBackgroundStatins reduce coronary events in patients with coronary artery disease.Material/MethodsChart reviews were performed in 305 patients (217 men and 88 women, mean age 74 years) not treated with statins during the first year of being seen in an outpatient cardiology practice but subsequently treated with statins. Based on the starting date of statins use, the long-term outcomes of myocardial infarction (MI), percutaneous coronary intervention (PCI), and coronary artery bypass graft surgery (CABGS) before and after statin use were compared.ResultsMean follow-up was 65 months before statins use and 66 months after statins use. MI occurred in 31 of 305 patients (10%) before statins, and in 13 of 305 patients (4%) after statins (p<0.01). PCI had been performed in 66 of 305 patients (22%) before statins and was performed in 41 of 305 patients (13%) after statins (p<0.01). CABGS had been performed in 56 of 305 patients (18%) before statins and was performed in 20 of 305 patients (7%) after statins (p<0.001). Stepwise logistic regression showed statins use was an independent risk factor for MI (odds ratio=0.0207, 95% CI, 0.0082–0.0522, p<0.0001), PCI (odds ratio=0.0109, 95% CI, 0.0038–0.0315, p<0.0001), and CABGS (odds ratio=0.0177, 95% CI=0.0072–0.0431, p<0.0001)ConclusionsStatins use in an outpatient cardiology practice reduces the incidence of MI, PCI, and CABGS.
IntroductionStatins reduce coronary events in patients with coronary artery disease.Material and methodsChart reviews were performed in 305 patients (217 men and 88 women, mean age 74 years) not treated with statins during the first year of being seen in an outpatient cardiology practice but subsequently treated with statins. Based on the starting date of statins use, the long-term outcomes of myocardial infarction (MI), percutaneous coronary intervention (PCI), and coronary artery bypass graft surgery (CABGs) before and after statin use were compared.ResultsMean follow-up was 65 months before statins use and 66 months after statins use. Myocardial infarction occurred in 31 of 305 patients (10%) before statins, and in 13 of 305 patients (4%) after statins (p < 0.01). Percutaneous coronary intervention had been performed in 66 of 305 patients (22%) before statins and was performed in 41 of 305 patients (13%) after statins (p < 0.01). Coronary artery bypass graft surgery had been performed in 56 of 305 patients (18%) before statins and in 20 of 305 patients (7%) after statins (p < 0.001). Stepwise logistic regression showed statins use was an independent risk factor for MI (odds ratio = 0.0207, 95% CI, 0.0082-0.0522, p < 0.0001), PCI (odds ratio = 0.0109, 95% CI, 0.0038-0.0315, p < 0.0001) and CABGs (odds ratio = 0.0177, 95% CI = 0.0072-0.0431, p < 0.0001)ConclusionsStatins use in an outpatient cardiology practice reduces the incidence of MI, PCI, and CABGs.
A b s t r a c tIntroduction: To investigate differences between outpatients with progressive and nonprogressive coronary artery disease (CAD) measured by coronary angiography. Material and methods: Chart reviews were performed in patients in an outpatient cardiology practice having ≥ 2 coronary angiographies ≥ 1 year apart. Progressive CAD was defined as 1) new non-obstructive or obstructive CAD in a previously disease-free vessel; or 2) new obstruction in a previously non-obstructive vessel. Coronary risk factors, comorbidities, cardiovascular events, medication use, serum low-density lipoprotein cholesterol (LDL-C), and blood pressure were used for analysis. Results: The study included 183 patients, mean age 71 years. Mean follow-up duration was 11 years. Mean follow-up between coronary angiographies was 58 months. Of 183 patients, 108 (59%) had progressive CAD, and 75 (41%) had nonprogressive CAD. The use of statins, β-blockers, angiotensin-converting enzyme inhibitors or angiotensin receptor blockers, and aspirin was not significantly different in patient with progressive CAD or nonprogressive CAD Mean arterial pressure was higher in patients with progressive CAD than in patients with nonprogressive CAD (97 ±13 mm Hg vs. 92 ±12 mm Hg) (p < 0.05). Serum LDL-C was insignificantly higher in patients with progressive CAD (94 ±40 mg/dl) than in patients with nonprogressive CAD (81 ±34 mg/dl) (p = 0.09). Conclusions: Our data suggest that in addition to using appropriate medical therapy, control of blood pressure and serum LDL-C level may reduce progression of CAD.
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