Device-based therapies in cardio-renal syndrome: a pathophysiology-driven approach to a complex bidirectional disease

Area of Science:

• Cardiology
• Nephrology
• Medical Devices

Background:

• Cardiorenal syndrome (CRS) involves simultaneous heart and kidney dysfunction, complicating heart failure management.
• Persistent congestion and diuretic resistance in CRS are linked to poor outcomes despite current therapies.

Purpose of the Study:

• To review current device-based therapies for CRS, focusing on their hemodynamic and volume regulatory effects.
• To emphasize individualized patient selection based on hemodynamic phenotype, diuretic response, and congestion.

Main Methods:

• Review of current literature on device therapies for cardiorenal syndrome.
• Analysis of device mechanisms related to volume regulation and hemodynamics.
• Development of a phenotype-driven algorithm for device intervention selection.

Main Results:

• Device therapies show promise as adjunctive treatments for CRS when pharmacologic approaches fail.
• Individualized patient selection based on specific phenotypes is critical for effective device therapy.
• A stepwise, phenotype-driven algorithm can guide the timing and choice of device interventions.

Conclusions:

• Device-based therapies represent a significant advancement in managing cardiorenal syndrome.
• Personalized treatment strategies, guided by patient phenotype, are essential for optimizing device therapy in CRS.
• Integrating device therapy into heart failure care pathways requires careful consideration of procedural risks and broader disease modification.