Related Experiment Video
Updated: Jun 27, 2026

Voltage-Dependent Potassium Current Recording on H9c2 Cardiomyocytes via the Whole-Cell Patch-Clamp Technique
Published on: November 11, 2022
[Hyperkalemia induced by atenolol]
H Kassem1, C Hajjar, T El Gharbi
1Service de médecine interne, centre hospitalier de Dourdan, 2, rue du Potelet, 91410 Dourdan cedex, France.
Abstract:
We report a 53-year-old woman with hyperkaliemia secondary to treatment with atenolol. The diagnosis of atenolol induced hyperkaliemia was obtained after excluding other causes of hyperkaliemia and normalization of potassium serum level following the discontinuation of this medication without any other modification (treatment or diet). Furthermore, when atenolol was again introduced, serum potassium level increased and normalized when atenol was definitively discontinued. The mechanism of hyperkaliemia we suspected is probably a reduction of potassium intracellular transfer.
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