Complete Atrioventricular Nodal Block Due to Malignancy-Related Hypercalcemia

Area of Science:

• Cardiology
• Endocrinology
• Electrophysiology

Background:

• Severe hypercalcemia is a critical condition with potential systemic effects.
• Cardiac conduction abnormalities are a known, albeit rare, complication of electrolyte imbalances.

Purpose of the Study:

• To highlight the association between severe hypercalcemia and cardiac conduction disturbances.
• To emphasize the risk of complete atrioventricular block in hypercalcemic patients.

Main Methods:

• Literature review of case reports and clinical studies.
• Analysis of electrocardiographic findings in patients with severe hypercalcemia.

Main Results:

• Severe hypercalcemia can manifest with significant alterations in cardiac electrical activity.
• Complete atrioventricular block has been observed in patients with severe hypercalcemia.

Conclusions:

• Clinicians should consider cardiac conduction abnormalities, such as complete atrioventricular block, in the differential diagnosis of severe hypercalcemia.
• Monitoring of cardiac function is crucial in managing patients with severe hypercalcemia.