[Ultrafiltration and hemofiltration in the cardiology unit]

Area of Science:

• Cardiology
• Nephrology
• Renal Replacement Therapies

Background:

• Fluid overload and congestion are significant issues in heart failure patients, often leading to diuretic resistance.
• Radiocontrast-induced nephropathy (RCIN) is a common complication of iodinated contrast media, contributing to hospital-acquired acute kidney injury and adverse patient outcomes.
• Renal replacement therapies are gaining attention for managing these conditions in cardiac patients.

Purpose of the Study:

• To review the background of renal replacement therapies in cardiology.
• To evaluate the safety, efficacy, and economic impact of isolated ultrafiltration and hemofiltration (HF) in cardiac patients.
• To assess current evidence for HF in preventing RCIN and isolated ultrafiltration in heart failure management.

Main Methods:

• Review of existing literature on isolated ultrafiltration and HF in cardiac settings.
• Analysis of clinical evidence regarding the safety and efficacy of these procedures.
• Examination of the economic impact and current recommendations for utilization.

Main Results:

• Isolated ultrafiltration theoretically offers advantages for heart failure but lacks clinical evidence for broad application; it should be reserved for specific cases of diuretic resistance.
• Current evidence does not support routine periprocedural hemofiltration for RCIN prophylaxis in coronary angiography, even in high-risk patients.
• The review covers background, evidence, and economic considerations of these therapies in cardiology.

Conclusions:

• Isolated ultrafiltration is a potential option for select advanced heart failure patients with diuretic resistance and fluid overload.
• Routine use of periprocedural hemofiltration for RCIN prevention in coronary angiography is not currently supported by robust evidence.
• Further research may clarify the role and optimal application of these renal replacement therapies in cardiovascular care.