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Eur Heart J Cardiovasc Pharmacother. 2016 Sep 15. pii: pvw028. [Epub ahead of print]

Treating arrhythmias with adjunctive magnesium: identifying future research directions.

Author information

  • 1Department of Pharmacy Practice, School of Pharmacy, University of Connecticut, 69 N. Eagleville Rd, Unit 3092, Storrs, CT 06268, USA william.baker_jr@uconn.edu.

Abstract

Magnesium is the fourth most abundant cation in the human body and is the second most prevalent cation in intracellular tissues. Myocardial cell action potentials are mediated by voltage-dependent Na+, K+, and Ca2+ channels which, when their function is altered, can lead to the genesis of cardiac dysrythmias. Magnesium regulates the movement of ions through these channels within myocardial tissues. The potential ability of magnesium supplementation to prevent and/or treat arrhythmias has been recognized in clinical medicine for years. This includes termination of torsade de pointes, prevention of post-operative atrial fibrillation, acute treatment of atrial fibrillation, and improving the efficacy and safety of antiarrhythmic drugs. Despite what is currently known about magnesium's therapeutic potential, a number of limitations and gaps to the literature exist. This includes an unclear link between correction of intracellular magnesium concentrations and both mechanistic and clinical outcomes, small sample sizes, varying routes of administration and doses, as well as short follow-up periods. This review highlights these gaps and recommends areas of need for future research.

KEYWORDS:

Arrhythmia; Cardiovascular disease; Magnesium

PMID:
27634841
DOI:
10.1093/ehjcvp/pvw028
[PubMed - as supplied by publisher]

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