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The pattern of proteinuria in congestive cardiac failure due to common heart diseases
L I Ojogwu1, E Oviasu, R U Erhumwanse
1Dept of Medicine, University of Benin Teaching Hospital, Benin City.
Insights
Proteinuria, or protein in urine, is linked to congestive heart failure across various heart conditions. Hypertensive heart disease can cause heavy proteinuria, even without kidney issues.
Area of Science:
- Cardiology
- Nephrology
- Internal Medicine
Background:
- Congestive cardiac failure (CCF) is often associated with renal complications.
- The relationship between proteinuria and specific cardiac etiologies requires further clarification.
Purpose of the Study:
- To investigate the association between proteinuria and CCF in patients with distinct cardiac conditions.
- To determine if proteinuria levels differ significantly among various causes of CCF.
Main Methods:
- Studied 33 patients with CCF from hypertensive heart disease, cardiomyopathy, rheumatic heart disease, and cor pulmonale.
- Assessed proteinuria levels before and after CCF treatment.
- Performed statistical analysis to compare proteinuria distribution and mean levels between groups.
- Included biopsy-proven hypertensive nephrosclerosis as a potential cause of proteinuria.
Main Results:
- Proteinuria was present in patients both before and after successful CCF treatment.
- Significant variations in proteinuria degree were observed across patient groups (P = 0.05).
- Hypertensive nephrosclerosis was identified as a cause of heavy, nephrotic-range proteinuria in two patients.
Conclusions:
- Congestive cardiac failure, particularly due to hypertensive heart disease, should be considered in the differential diagnosis of massive proteinuria.
- Proteinuria can persist after CCF treatment and may indicate underlying renal pathology.
- Early recognition of proteinuria in CCF patients is crucial for comprehensive diagnosis and management.
Abstract:
The association between proteinuria and congestive cardiac failure was investigated in patients with hypertensive heart disease, cardiomyopathy, rheumatic heart disease and cor pulmonale. In 33 such patients, proteinuria occurred before and after successful treatment of the cardiac failure. Overall there was a wide variation in the degree of proteinuria amongst the various groups and statistical analysis showed that the distribution of levels of proteinuria and the mean levels of proteinuria were statistically different between any two groups of patients, P = 0.05. Biopsy proven hypertensive nephrosclerosis was found to be a cause of heavy proteinuria which was in the nephrotic range in two such patients. Congestive cardiac failure due to hypertensive heart disease should be included in the differential diagnosis of massive proteinuria even in the absence of renal insufficiency.