Related Experiment Video
Updated: Aug 5, 2025

Voltage-Dependent Potassium Current Recording on H9c2 Cardiomyocytes via the Whole-Cell Patch-Clamp Technique
Published on: November 11, 2022
Hyperkalemia and the Use of New Potassium Binders a Single Center Experience from Vestfold Norway (The PotBind Study)
Thea Bjune1, Thea Bjerkestrand Bøe2, Stig Arne Kjellevold3
1Vear General Practitioner Group, Vear, Vestfold, Norway.
Insights
New potassium binders effectively manage hyperkalemia in chronic kidney disease patients, allowing continued renin-angiotensin-aldosterone system inhibitor therapy with few side effects.
Area of Science:
- Nephrology
- Cardiology
- Internal Medicine
Background:
- Hyperkalemia is a frequent complication of chronic kidney disease (CKD).
- Hyperkalemia poses risks and often necessitates discontinuation of renin-angiotensin-aldosterone system inhibitors (RAASi).
Purpose of the Study:
- To evaluate the efficacy and safety of new potassium binders in managing hyperkalemia.
- To assess the ability to maintain RAASi treatment in patients with proteinuric CKD and/or congestive heart failure (CHF).
Main Methods:
- Retrospective cohort study of long-term potassium binder users.
- Inclusion criteria: patients aged 18+, treated with potassium binders, meeting RAASi treatment indications and reimbursement criteria.
Main Results:
- No hospital admissions for hyperkalemia post-initiation of potassium binders.
- Significant reduction in maximum potassium levels observed.
- All patients successfully maintained on RAASi therapy.
- Minimal side effects and good tolerance reported.
Conclusions:
- New potassium binders offer a safe and effective treatment for hyperkalemia.
- These agents facilitate continued RAASi therapy, crucial for managing CKD and CHF.
Purpose:
Hyperkalemia is a common metabolic complication of chronic kidney disease (CKD) and is associated with several serious adverse events. We aimed to treat/prevent hyperkalemia using the new of potassium-binders, allowing maintained renin-angiotensin-aldosterone system inhibitors (RAASi) treatment in proteinuric CKD and/or congestive heart failure (CHF) patients.
Patients And Methods:
We conducted a retrospective cohort study in long-term users of potassium binders for chronic hyperkalemia. Patients aged 18 years and older, treated with potassium-binders and who met the reimbursement criteria and indication for RAASi treatment were included.
Results:
Fifty-seven percent of the patients were males and mean age was 65 years. During the study period, no patients were admitted to hospital due to hyperkalemia after initiation of potassium binders. Potassium maximum values were significantly lower after treatment. Few patients reported major side effects, and discontinuation was mostly due to normokalemia. We found no significant changes in bicarbonate, serum creatinine or GFR stage after starting potassium binder treatment. All patients on RAASi treatment before initiating potassium-binders were retained on RAASi treatment.
Conclusion:
New potassium binders in clinical practice are an easy and safe treatment with few side effects and good tolerance, that significantly lowers the risk of hyperkalemia. Furthermore, and most importantly, patients can be maintained on RAASi treatment.
More Related Videos
Related Concept Videos
Antihypertensive Drugs: Potassium-Sparing Diuretics
Antiarrhythmic Drugs: Class III Agents as Potassium Channel Blockers
Antiarrhythmic Drugs: Class I Agents as Sodium Channel Blockers
Class 1A Antiarrhythmic Drugs: These drugs work by moderately blocking sodium channels,...
Antiarrhythmic Drugs: Class II Agents as β-Adrenergic Blockers
Antiepileptic Drugs: Potassium Channel Activators
Ezogabine has gained approval as an adjunctive treatment...
Heart Failure Drugs: Inotropic Agents

