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Updated: Oct 9, 2025

Voltage-Dependent Potassium Current Recording on H9c2 Cardiomyocytes via the Whole-Cell Patch-Clamp Technique
Published on: November 11, 2022
[Pharmacology of hyperkalemia]
1Centro di Ricerca Clinica e Sperimentale, Dipartimento di Scienze Mediche, IRCCS San Raffaele Pisana, Roma.
New potassium binders, patiromer and sodium zirconium cyclosilicate, offer effective acute and chronic hyperkalemia (HK) treatment for heart failure patients. These therapies manage serum potassium levels, enabling optimal use of crucial heart failure medications.
Area of Science:
- Cardiology
- Nephrology
- Pharmacology
Background:
- Hyperkalemia (HK) frequently affects heart failure patients due to reduced kidney function, impaired homeostasis, and cardiovascular drug effects.
- Drugs like renin-angiotensin-aldosterone system inhibitors (RAASi), angiotensin receptor-neprilysin inhibitors, and beta-blockers can induce HK by hindering potassium excretion.
Purpose of the Study:
- To review recent advancements in acute and chronic hyperkalemia (HK) management.
- To evaluate the efficacy of novel potassium-binding therapies in patients with cardio-renal conditions and heart failure.
Main Methods:
- Review of recent clinical studies and therapeutic guidelines for hyperkalemia (HK) management.
- Analysis of the clinical data for patiromer and sodium zirconium cyclosilicate in treating acute and chronic HK.
Main Results:
- Patiromer and sodium zirconium cyclosilicate demonstrate efficacy in both acute and long-term HK treatment.
- These agents significantly reduce serum potassium in patients with HK receiving RAASi.
- The new therapies facilitate the initiation and titration of RAASi in patients with suboptimal treatment.
Conclusions:
- Novel potassium binders represent a significant therapeutic advance for managing hyperkalemia (HK) in heart failure and cardio-renal patients.
- These medications improve the management of HK, allowing for better utilization of guideline-directed medical therapies, particularly RAASi.
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