HENRY GINSBERG, M.D.; KENNETH V. SCHWARTZ, M.D.
To the editor: The presence of complete atrioventricular (A-V) block in an acutely ill patient is most often associated with an acute myocardial infarction. Less common causes are bacterial endocarditis, inflammatory lesions of the conduction system, and thyrotoxicosis. We report a case in which hypercalcemia secondary to the milk-alkali syndrome (1, 2) seemed to be the cause of complete A-V block. Although first-degree heart block has been reported in association with hypercalcemia (3), we believe that this is the first reported case in which second- and third-degree A-V block developed secondary to hypercalcemia.
A 38-year-old man presented with a 2-day
GINSBERG H, SCHWARTZ KV. Hypercalcemia and Complete Heart Block. Ann Intern Med. ;79:903. doi: 10.7326/0003-4819-79-6-903_1
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Published: Ann Intern Med. 1973;79(6):903.
Endocrine and Metabolism, Fluid and Electrolyte Disorders, Nephrology.
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