A case of successful withdrawal from cardiopulmonary bypass by correcting plasma Mg2+ concentration

Atsushi Sawada, Naoyuki Hirata, Michiaki Yamakage, Masanori Yamauchi, Akiyoshi Namiki

Research output: Contribution to journalArticlepeer-review

Abstract

A 56-year-old man who had a DeBakey IIIb-type dissecting aortic aneurysm and aortic regurgitation (II°) with old myocardial infarction (ejection fraction = 20%) was scheduled for replacement of the aortic arch and aortic valve with a prosthetic vessel and valve under general anesthesia. After completion of the replacement under cardiopulmonary bypass (CPB), attempts to withdraw the patient from CPB failed twice due to refractory ventricular arrhythmia and hypotension. At the end of the third CPB, plasma Mg 2+concentration was corrected by adding 2,000 mg magnesium sulphate (0.30→0.53 mmol/L), and then the patient was successfully withdrawn from CPB. It is important to monitor plasma Mg2+ concentration during open-heart surgery, and it would be useful to correct it for refractory ventricular arrhythmia.

Original languageEnglish
Pages (from-to)77-80
Number of pages4
JournalAnesthesia and Resuscitation
Volume43
Issue number4
Publication statusPublished - 2007 Dec 1
Externally publishedYes

Keywords

  • Magnesium ion : Mg
  • Old myocardial infarction
  • Ventricular arrhythmia

ASJC Scopus subject areas

  • Emergency Medicine
  • Anesthesiology and Pain Medicine

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