Heart Failure and Kidney Disease.

Area of Science:

• Nephrology
• Cardiology
• Internal Medicine

Background:

• Heart failure (HF) frequently coexists with kidney disease, sharing common risk factors and pathophysiological mechanisms.
• Both hemodynamic and non-hemodynamic factors contribute to renal impairment in HF patients.
• Chronic kidney disease (CKD) independently predicts poorer outcomes in both chronic and acute decompensated HF.

Purpose of the Study:

• To highlight the importance of renal function evaluation in HF management.
• To discuss the limitations of traditional renal function markers and introduce emerging biomarkers.
• To explore the role of imaging techniques, specifically Doppler evaluation of renal circulation, in assessing renal dysfunction in HF.

Main Methods:

• Review of existing literature on the interplay between heart failure and kidney disease.
• Discussion of standard renal function assessment methods (serum creatinine, estimated glomerular filtration rate).
• Introduction of novel glomerular and tubular biomarkers.
• Emphasis on Doppler ultrasonography for renal circulation assessment.

Main Results:

• Serum creatinine and estimated GFR are primary but limited tools for renal assessment.
• Emerging biomarkers offer more sensitive detection of renal impairment.
• Doppler evaluation of renal circulation is a feasible method to identify HF patients at risk of renal dysfunction and with worse prognosis.
• Certain HF medications can impact renal function, necessitating careful management in CKD patients.

Conclusions:

• Accurate renal function assessment is vital for effective HF management.
• A combination of traditional markers, novel biomarkers, and imaging techniques like Doppler renal ultrasound improves patient evaluation.
• Understanding the impact of HF treatments on renal function is critical, especially in patients with coexisting CKD.