Why the study?
Does intravenous magnesium chloride alter electrophysiologic and electrocardiographic variables in patients undergoing electrophysiologic assessment?
Population
13 patients undergoing a routine electrophysiologic assessment for clinical indications
Comparison
Intravenous magnesium chloride vs Baseline (before infusion)
Design
Cohort
Follow-up
Immediate (after 10-minute infusion)
Authors
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May support magnesium in supraventricular tachyarrhythmias via AV nodal effects; hypothesis-generating and should not yet change practice.
Does intravenous magnesium chloride alter electrophysiologic and electrocardiographic variables in patients undergoing electrophysiologic assessment?
Intravenous magnesium prolongs atrial and AV nodal conduction and refractoriness, providing a mechanistic basis for its potential benefit in treating or preventing supraventricular tachyarrhythmias.
Rasmussen et al. (1989) studied this question.
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