Abstract
Bartter's and Gitelman's syndromes (BS/GS) are genetically determined kidney tubulopathies leading to electrolyte and neurohormonal abnormalities. Although considered benign entities, major adverse cardiovascular events may complicate both syndromes, in form of ventricular arrhythmias leading to palpitations, syncope or sudden cardiac death, microvascular cardiac dysfunction and exercise-induced myocardial contractile deficit. The mechanisms leading to cardiovascular complications are not only driven by chronic electrolyte abnormalities, i.e. chronic hypokalemia and hypomagnesemia, but also by neurohormonal alterations that can impair vascular tone and myocardial contractility. In presence of triggering factors, BS/GS patients may experience a spectrum of cardiac arrhythmias necessitating prompt diagnosis and treatment. The aim of this review is to explore the pathophysiological mechanisms of BS and GS, highlighting those responsible for cardiovascular involvement, and to analyze the spectrum of associated cardiovascular complications. This highlights the importance of an integrated shared management of GS/BS patients between Nephrologist and Cardiologist.
Published Version
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