Transfusion · 2002
Profound ionized hypomagnesemia induced by therapeutic plasma exchange in liver failure patients.
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Kamochi Masayuki, Aibara Keiji, Nakata Koichi, Murakami Masahiro, Nandate Koichiro, Sakamoto Hisahiro, Sata Takeyoshi, Shigematsu Akio
Аннотация
BACKGROUND: Various adverse effects, including cardiac arrest, have been induced by plasma exchange (PE). Electrolyte derangement is frequently observed. The purpose of this study was to assess the effect of PE on the serum ionized magnesium (Mg2+) concentration in acute liver failure patients.
STUDY DESIGN AND METHODS: Seven liver failure patients requiring PE were enrolled in this study. PE was performed 21 times in total. Blood samples were drawn before PE and serially after the start of the PE. Serum Mg2+ was measured by the ion- selective electrode method.
RESULTS: After PE was started, Mg2+ concentrations began to fall significantly. The low Mg2+ blood concentration continued during PE. After PE, the Mg2+ level recovered to about 80 percent of the control value within 2 hours in six patients. However, in one patient, the Mg2+ concentration was still low even at 2 hours after PE. This patient complained of chest discomfort during PE and ECG analysis showed sporadic supraventricular premature contractions.
CONCLUSION: Profound ionized hypomagnesemia was induced by PE in liver failure patients.
STUDY DESIGN AND METHODS: Seven liver failure patients requiring PE were enrolled in this study. PE was performed 21 times in total. Blood samples were drawn before PE and serially after the start of the PE. Serum Mg2+ was measured by the ion- selective electrode method.
RESULTS: After PE was started, Mg2+ concentrations began to fall significantly. The low Mg2+ blood concentration continued during PE. After PE, the Mg2+ level recovered to about 80 percent of the control value within 2 hours in six patients. However, in one patient, the Mg2+ concentration was still low even at 2 hours after PE. This patient complained of chest discomfort during PE and ECG analysis showed sporadic supraventricular premature contractions.
CONCLUSION: Profound ionized hypomagnesemia was induced by PE in liver failure patients.