【摘要】 目的 探讨急性心肌梗死时血清镁与心律失常的关系。方法 回顾性分析112名AMI患者于入院72小时内行持续心电监护及心电图检查，并测血清镁。结果 心律失常组61人中低镁血症44人，心律正常组51人中低镁血症13人，两组有显著差别(P<0.01)，两组平均血镁浓度间亦有显著差异(P<0.01)。经补镁治疗的低血镁心律失常患者预后优于未予补镁者(P<0.05)。结论 AMI并低镁血症比血镁正常者更易出现心律失常，早期监测血镁、及时补镁有利于心律失常的防治。

Lü Lu, Lu Hui.

    Guangzhou Railway Central Hospital, Guangzhou 510080

【Abstract】 Objective To discuss the relationship between arrhythmia and serum magnesium in acute myocardial infarction (AMI). Methods 112 AMI patients were examined with Holter monitoring and electrocardiograph during their first 72 hours in hospital. Serum magnesium was assayed meanwhile. Results Among 61 patients of the arrhythmia group there were 44 ones with hypomagnesemia, while it was detected in 13 ones of the normal cardiac rhythm group including 51 patietns. The contrast between the two groups was apparently remarkable (P<0.01). As for the average seurm magnesium concentration, there was obvious difference between the two groups (P<0.01). In 44 patients with both arrhythmia and hypomagnesemia, the mortality of those treated with magnesium salt was lower than that of the patients treated without magnesium salt (P<0.05).Conclusions AMI patients with hypomagnesemia more likely suffer from arrhythmia than the ones with normal serum magnesium. Monitoring serum magnesium at the early stage of AMI and complementing magnesium salt prompltly assists the prevention and cure of arrhythmia.

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