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Statins associated with reduced mortality in patients admitted for congestive heart failure
Richard J Folkeringa1, Dave J Van Kraaij, Robert G Tieleman
1Department of Cardiology, University Hospital Maastricht, P. Debyelaan 25, PO Box 5800, 6202 AZ Maastricht, The Netherlands.
Insights
Statins show improved survival rates in patients with congestive heart failure (CHF), regardless of the cause. However, no added benefit was observed when statins were used with beta-blockers.
Area of Science:
- Cardiology
- Pharmacology
Background:
- Congestive heart failure (CHF) patients may benefit from statins due to their effects on neurohormones, inflammation, and oxidative stress.
- A case-control study was designed using a prospective CHF patient registry to investigate this hypothesis.
Purpose of the Study:
- To evaluate the association between statin use and mortality in patients with congestive heart failure (CHF).
Main Methods:
- A case-control study was conducted using the Maastricht Registry of Congestive Heart Failure (1998-2000).
- Patients with uncomplicated survival post-discharge were matched with non-survivors based on age, sex, ejection fraction, and renal function.
- Cox multivariate regression analysis was employed to assess the impact of statin use on mortality.
Main Results:
- Twenty percent of the 524 included patients used statins during a mean follow-up of 31 months.
- Statin use was significantly associated with decreased mortality in CHF patients, irrespective of CHF etiology.
- No additional survival benefit was observed in patients concurrently treated with beta-blockers.
Conclusions:
- Statins are associated with improved survival in congestive heart failure (CHF) patients, independent of the underlying cause.
- The combination of statins and beta-blockers did not yield additional survival benefits compared to statins alone.
Background:
Statins may be of potential benefit in patients with congestive heart failure (CHF) due to modulation of neurohormones and their antioxidant, antiinflammatory, and antifibrotic properties. To test this hypothesis, we performed a case-control study by using a prospective registry of patients admitted to our hospital for CHF.
Methods And Results:
The Maastricht Registry of Congestive Heart Failure consists of a cohort of all patients who were admitted to the University Hospital Maastricht because of CHF for the first time between 1998 and 2000. Elective admissions were not included in the database. Drug treatment was left at the discretion of the attending physician. From a total of 840 patients admitted, we selected patients with an uncomplicated survival for at least 1 month after hospital discharge. For each survivor a nonsurvivor was matched for age, sex, left ventricular ejection fraction, and renal function. Drugs were considered in use only if they were administered for at least 90% of follow-up time. Five hundred twenty-four patients were included with a mean follow-up after discharge of 31 +/- 18 months. Twenty percent used statins. In Cox multivariate regression analysis, the use of statins remained significantly associated with decreased mortality independent of the cause of CHF. However, there appeared no additional benefit of statins in patients using beta-blockers. Mortality rates were constant over time after discharge. Statins were as effective in ischemic as in nonischemic heart failure and in patients with depressed as well as preserved LVEF.
Conclusion:
Statins appear associated with improved survival in CHF independent of its etiology. No additional benefit was seen in patients treated with beta-blockers.
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