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Cardiac pathology in patients with end-stage renal disease maintained on hemodialysis
A Ansari1, C J Kaupke, N D Vaziri
1Department of Medicine University of California, Irvine.
Insights
Cardiovascular disease is prevalent in end-stage renal disease patients, causing most deaths. Pre-existing conditions like diabetes and hypertension, not dialysis, predict mortality.
Area of Science:
- Nephrology
- Cardiology
- Pathology
Background:
- End-stage renal disease (ESRD) patients exhibit high rates of cardiovascular pathology.
- Cardiovascular complications are the leading cause of mortality in ESRD.
- Understanding the specific pathologies and predictors is crucial for patient management.
Purpose of the Study:
- To characterize the spectrum of cardiovascular pathology in ESRD patients.
- To identify the primary causes of death related to cardiovascular disease in this cohort.
- To determine predictors of cardiovascular mortality in ESRD.
Main Methods:
- Autopsy examination of 106 consecutive ESRD patients.
- Analysis of cardiovascular pathology findings.
- Correlation of findings with patient history, cause of renal failure, and dialysis duration.
Main Results:
- Cardiovascular pathology was nearly universal in ESRD patients.
- Cardiovascular disease caused 36% of deaths, with acute myocardial infarction in 15%.
- Common findings included left ventricular hypertrophy, atherosclerosis, pericarditis, fibrosis, and valvular dilatation.
Conclusions:
- Cardiovascular disease is a major determinant of mortality in ESRD.
- Hypertension and diabetes mellitus are key predictors of cardiovascular mortality.
- Mortality risk is higher in the first year of dialysis, suggesting early-stage vulnerability.
Abstract:
We report the spectrum of cardiovascular pathology found on autopsy examination in 106 consecutive patients with end-stage renal disease. Cardiovascular pathology was present in nearly all patients, and was the most frequent cause of death (36%), with acute myocardial infarction accounting for 15%. Particularly frequent pathologic findings were left ventricular hypertrophy, coronary and aortic atherosclerosis, pericarditis with effusion, myocardial fibrosis, and valvular dilatation. Cardiovascular death rate was higher during the first year than after the fifth year of dialysis. Nearly all patients had a history of hypertension. The nature of the underlying cause of renal failure and pre-existing cardiovascular disease, specifically diabetes mellitus and hypertension, were the principal predictors of cardiovascular mortality rather than maintenance hemodialysis therapy per se.