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[Potassium role in the human body and clinical implications of hyperkalemia]
Giulio Binaghi1, Maurizio Giuseppe Abrignani2, Pier Luigi Temporelli3
1S.C. Cardiologia e UTIC, ARNAS G. Brotzu, Cagliari.
Insights
Hyperkalemia, a common disorder in cardiovascular disease patients, increases risks of hospitalization and mortality. Understanding its mechanisms and management is crucial for cardiologists to optimize patient care.
Area of Science:
- Cardiology
- Nephrology
- Internal Medicine
Background:
- Potassium is a vital intracellular electrolyte, with extracellular levels tightly regulated by potassium homeostasis mechanisms.
- Hyperkalemia, or high potassium levels, is prevalent in cardiovascular disease patients.
- It elevates risks of hospitalization, cardiovascular events, and mortality, often complicating essential cardiac therapies.
Purpose of the Study:
- To review the underlying mechanisms of hyperkalemia.
- To summarize the epidemiology, risk factors, and monitoring of hyperkalemia.
- To outline electrophysiological and electrocardiographic effects, with essential therapeutic elements for clinical practice.
Main Methods:
- Literature review focused on potassium homeostasis.
- Analysis of epidemiological data and risk factors for hyperkalemia.
- Synthesis of information on monitoring, diagnostic effects, and treatment principles.
Main Results:
- Hyperkalemia is a significant comorbidity in cardiovascular patients.
- It is associated with adverse cardiovascular outcomes and treatment challenges.
- Knowledge of its effects and management is essential for cardiologists.
Conclusions:
- Effective management of hyperkalemia is critical for patients with cardiovascular disease.
- This review provides essential knowledge for cardiologists to manage hyperkalemia.
- Understanding hyperkalemia improves patient outcomes and therapy adherence.
Abstract:
Potassium is the most represented intracellular electrolyte in the human body. Its extracellular levels are maintained within strict limits through different mechanisms, which constitute the homeostasis of potassium. Hyperkalemia is the most common electrolyte disorder in patients with cardiovascular disease. Although with different levels of severity, it carries an increased risk of hospitalization, cardiovascular morbidity and mortality. Hyperkalemia may also be an important cause of discontinuation or impossibility of titration of fundamental therapies in the cardiology patient. The principal aim of this review is to analyze the mechanisms underlying hyperkalemia, as well as to summarize its epidemiology, risk factors, monitoring methodologies and electrophysiological and electrocardiographic effects, providing just only few essential elements of therapy. In this way the physician, and especially the cardiologist, can have an adequate knowledge for its management in clinical practice.
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