The role of aetiology in cardiac manifestations of chronic kidney disease: the CPH-CKD ECHO study

Area of Science:

• Nephrology
• Cardiology
• Internal Medicine

Background:

• Chronic kidney disease (CKD) affects cardiac function.
• Different causes of CKD may have varying impacts on the heart.

Purpose of the Study:

• To explore associations between cardiac parameters and specific causes of CKD.
• To identify which CKD etiologies are linked to adverse cardiac findings.

Main Methods:

• Echocardiographic measures (LV ejection fraction, strain, E/e' ratio, LV mass index) were assessed.
• 883 participants (174 controls, 709 CKD patients) with various CKD etiologies were studied.
• Cardiac parameters were compared between CKD groups and controls, with and without adjustments.

Main Results:

• Diabetic nephropathy and CKD of unknown origin showed impaired LV function and increased LV mass.
• Hypertensive nephropathy was associated with impaired strain and higher E/e' ratio.
• Glomerulonephritis/vasculitis showed higher LV mass; PKD had better longitudinal strain.

Conclusions:

• CKD etiologies like glomerulonephritis, hypertensive nephropathy, unknown origin, and diabetic nephropathy are associated with adverse cardiac findings.
• Polycystic kidney disease (PKD) and tubulointerstitial nephritis were not linked to negative cardiac outcomes.
• The specific cause of CKD may influence its cardiac manifestations.