Document Detail


Hypermagnesemia in a Constipated Female.
MedLine Citation:
PMID:  22244603     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: Hypermagnesemia is a rare condition that is usually iatrogenic. Magnesium oxide (MgO) ingestion by constipated patients with prolonged colonic retention contributes to hypermagnesemia. Treatment of hypermagnesemia includes discontinuation of the magnesium use, gastrointestinal (GI) decontamination, and removal of magnesium from the serum by dialysis. Calcium acts as an antagonist in hypermagnesemia. CASE REPORT: A 72-year-old woman presented with constipation and MgO ingestion. The patient was brought to our department due to altered mental status and progressive general weakness. Laboratory tests showed a magnesium level of 6.2 mEq/L. Bradycardia and hypotension developed with rebound hypermagnesemia after incomplete dialysis. Abdomen computed tomography showed hyperdense MgO tablets retained in the colon. A magnesium-free laxative was used for GI decontamination. Despite the use of high-dose inotropics and an elevated trigger for transcutaneous pacing, the cardiac performance improved minimally. Although our patient responded to calcium administration with hemodynamic improvement, prolonged hypotension and decreased perfusion led to hypoxic encephalopathy. CONCLUSION: This report demonstrates that MgO tablets retained in the GI tract without adequate decontamination result in continuous absorption and rebound of hypermagnesemia. This report also addresses the importance of GI decontamination in the treatment of hypermagnesemia.
Authors:
Yi-Ming Weng; Shou-Yen Chen; Hang-Cheng Chen; Jiun-Hao Yu; Shih-Hao Wang
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-1-13
Journal Detail:
Title:  The Journal of emergency medicine     Volume:  -     ISSN:  0736-4679     ISO Abbreviation:  -     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-1-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8412174     Medline TA:  J Emerg Med     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Inc. All rights reserved.
Affiliation:
Department of Emergency Medicine, Chang Gung Memorial Hospital at Linkou and Chang Gung University College of Medicine, Tao-Yuan, Taiwan.
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