Cardiovascular Impacts in Chronic Kidney Disease
Summary
Chronic kidney disease significantly elevates cardiovascular risk through a complex interplay of haemodynamic, metabolic and inflammatory pathways. Patients often develop hypertension, volume overload and neurohormonal activation, leading to left ventricular hypertrophy, myocardial fibrosis and vascular calcification. These structural changes manifest as impaired systolic and diastolic function, arrhythmias and heightened susceptibility to heart failure. Uraemic toxins and mineral bone disorder further exacerbate vascular stiffness and endothelial dysfunction. Non-invasive imaging and biomarker studies reveal an increasing burden of subclinical cardiac damage even in early stages of renal impairment. The global prevalence of chronic kidney disease, paired with its disproportionate cardiovascular mortality, underscores the need for integrated screening, risk stratification and tailored cardioprotective interventions in this vulnerable population.
Research from Nature Portfolio
Recent studies have harnessed advanced imaging and analytical techniques to refine cardiovascular risk prediction in chronic kidney disease. One large cohort study employed a machine-learning algorithm to quantify cardiothoracic ratios over time, identifying patient trajectories that correlate strongly with progression to end-stage renal disease and cardiovascular mortality. Continuous modelling of this simple radiographic index enhanced discrimination of high-risk individuals beyond conventional clinical predictors. Another investigation using multiparametric cardiovascular magnetic resonance imaging demonstrated that acute haemodialysis induces significant reductions in myocardial mass, native T1 and T2 relaxation times. These rapid changes are attributed to shifts in myocardial water content rather than true regression of hypertrophy, emphasising the importance of timing and technique in the interpretation of serial cardiac imaging in dialysis cohorts.
Cardiovascular Impacts in Chronic Kidney Disease publication trend
The graph below shows the total number of articles in cardiovascular impacts in chronic kidney disease across all publications each year (not limited to Nature Index journals).
Technical terms
Cardiothoracic ratio (CTR): The ratio of maximal transverse cardiac diameter to thoracic diameter on chest radiograph, used as a marker of cardiac enlargement.
Left ventricular hypertrophy (LVH): Thickening of the ventricular wall due to pressure or volume overload, common in chronic kidney disease.
Global longitudinal strain (GLS): A measure of myocardial deformation assessing longitudinal shortening, sensitive to early systolic dysfunction.
Cardiovascular magnetic resonance (CMR): Non-invasive imaging modality providing detailed assessment of cardiac structure and tissue characteristics.
Native T1 mapping: Quantitative CMR technique measuring intrinsic myocardial relaxation time, indicative of diffuse fibrosis or oedema.
Calcimimetic therapy: Pharmacological activation of the calcium-sensing receptor to control parathyroid hormone and mitigate vascular calcification.
References
- Cardiothoracic ratio values and trajectories are associated with risk of requiring dialysis and mortality in chronic kidney disease. Communications Medicine (2023).
- Effect of etelcalcetide versus alfacalcidol on left ventricular function and feature-tracking cardiac magnetic resonance imaging in hemodialysis—a post-hoc analysis of a randomized, controlled trial. Journal of Cardiovascular Magnetic Resonance (2023).
- Beta Blockade Prevents Cardiac Morphological and Molecular Remodelling in Experimental Uremia. International Journal of Molecular Sciences (2023).
- Cardiac Imaging Biomarkers in Chronic Kidney Disease. Biomolecules (2023).
- Acute changes in cardiac structural and tissue characterisation parameters following haemodialysis measured using cardiovascular magnetic resonance. Scientific Reports (2019).
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