镁：被遗忘的电解质。

Magnesium: the forgotten electrolyte.

作者信息

González Wilma, Altieri Pablo I, Alvarado Silo, Banchs Héctor L, Escobales Nelson, Crespo María, Borges William

机构信息

Department of Medicine and Physiology, UPR School of Medicine, Medical Sciences Campus, San Juan, Puerto Rico.

出版信息

Bol Asoc Med P R. 2013;105(3):17-20.

PMID:24282915

Abstract

UNLABELLED

Magnesium (Mg++), Potassium (K+) and Calcium (CA++) are important electrolytes in keeping a stable electrical status. The purpose of this study was to measure them in critically ill patients.

METHODS

We evaluated the electrolytes in 28 consecutive patients. Eighteen were females and 10 males with mean age of 62 +/- 5 years.

RESULTS

The admission diagnosis in 95% of the cases was congestive heart failure. Sixty-four percent of the patients had subnormal values of Mg++, 53% subnormal values of K+, and 28% subnormal values of CA++. Fourteen percent showed lower values of the three electrolytes and 35% only of Mg++ and K+ concomitantly. Twenty-eight percent showed prolonged QTC interval. All patients with prolonged QTC interval had low Mg++ and K+ levels. Twenty five percent of the patients showed atrial fibrillation, 25% ventricular tachycardia, and 3% junctional tachycardia. The ventricular tachycardia group had more electrolyte abnormalities than those with atrial fibrillation. None of the patients received Mg++ replacement during critical management while 50% received K+ replacement.

CONCLUSION

This data shows physician overlook the Importance of Mg++ and K+ deficiency in critically ill patients.

摘要

未标注

镁（Mg++）、钾（K+）和钙（Ca++）是维持稳定电状态的重要电解质。本研究的目的是对危重症患者进行这些电解质的检测。

方法

我们对连续28例患者的电解质进行了评估。其中18例为女性，10例为男性，平均年龄62±5岁。

结果

95%的病例入院诊断为充血性心力衰竭。64%的患者镁（Mg++）值低于正常，53%的患者钾（K+）值低于正常，28%的患者钙（Ca++）值低于正常。14%的患者三种电解质值均较低，35%的患者仅镁（Mg++）和钾（K+）值同时较低。28%的患者QTc间期延长。所有QTc间期延长的患者镁（Mg++）和钾（K+）水平均较低。25%的患者出现心房颤动，25%的患者出现室性心动过速，3%的患者出现交界性心动过速。室性心动过速组的电解质异常比心房颤动组更多。在危重症管理期间，没有患者接受镁（Mg++）补充，而50%的患者接受了钾（K+）补充。