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Magnesium Sulfate and Digitalis-Toxic Arrhythmias

Magnesium Sulfate and Digitalis-Toxic Arrhythmias Seven patients with congestive heart failure receiving long-term diuretic treatment (more than three years) experienced idionodal tachycardia in the presence of apparently normal serum digoxin levels. Intravenous bolus administration of magnesium (Mg) sulfate, followed by intramuscular Mg repletion, abolished the digitalis-toxic arrhythmia. The finding of decreased lymphocyte Mg and potassium contents proved the existence of cellular Mg depletion associated with normal serum Mg levels in five patients and with hypomagnesemia in the other two. Decreased cellular Mg content with normal serum Mg level predisposes to digitalis-toxic arrhythmias. (JAMA 1983;249:2808-2810) http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png JAMA American Medical Association

Magnesium Sulfate and Digitalis-Toxic Arrhythmias

JAMA , Volume 249 (20) – May 27, 1983

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References (16)

Publisher
American Medical Association
Copyright
Copyright © 1983 American Medical Association. All Rights Reserved. Applicable FARS/DFARS Restrictions Apply to Government Use.
ISSN
0098-7484
eISSN
1538-3598
DOI
10.1001/jama.1983.03330440046030
Publisher site
See Article on Publisher Site

Abstract

Seven patients with congestive heart failure receiving long-term diuretic treatment (more than three years) experienced idionodal tachycardia in the presence of apparently normal serum digoxin levels. Intravenous bolus administration of magnesium (Mg) sulfate, followed by intramuscular Mg repletion, abolished the digitalis-toxic arrhythmia. The finding of decreased lymphocyte Mg and potassium contents proved the existence of cellular Mg depletion associated with normal serum Mg levels in five patients and with hypomagnesemia in the other two. Decreased cellular Mg content with normal serum Mg level predisposes to digitalis-toxic arrhythmias. (JAMA 1983;249:2808-2810)

Journal

JAMAAmerican Medical Association

Published: May 27, 1983

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