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目的 :探讨急性心肌梗塞 (AMI)患者早期血钾含量与室性心律失常和梗塞部位的关系。方法 :测定 42例 AMI的血钾含量、室性心律失常发生率及梗塞部位 ,并分析其相关性。结果 :前壁、右室、下壁、下壁 +后壁 AMI患者的血钾分别为 3.5 2± 0 .6 4m mol/ L ,3.2 7± 0 .14m mol/ L ,3.84±0 .33 mm ol/ L ,4.12± 0 .2 8m mol/ L。前壁、右室 AMI者与下、后壁 AMI血钾浓度对比有显著性差异 (P<0 .0 1)。低钾血症组室性心律失常的发生率为 86 .4% ,而血钾正常组室性心律失常发生率为 13.8% ,二者间亦有显著性差异 (P<0 .0 1)。结论 :低钾血症多发生于前壁、右室 AMI患者。AMI患者低钾血症易出现室性心律失常
Objective: To investigate the relationship between early potassium levels and ventricular arrhythmias and infarction in patients with acute myocardial infarction (AMI). Methods: The serum potassium levels, the incidence of ventricular arrhythmias and the infarction sites in 42 patients with AMI were measured and their correlations were analyzed. Results: The serum potassium of anterior wall, right ventricular wall, inferior wall, inferior wall and posterior wall of AMI patients were 3.52 ± 0.64 m mol / L, 3.2 7 ± 0.14 m mol / L, 3.84 ± 0.33 mm ol / L, 4.12 ± 0.28 m mol / L There was a significant difference in AMI serum potassium concentrations between the anterior wall, right ventricular AMI and inferior and posterior walls (P <0.01). The incidence of ventricular arrhythmia in hypokalemia group was 86.4%, while the incidence of ventricular arrhythmia in normal serum potassium group was 13.8%. There was also a significant difference between the two groups (P <0.01). Conclusion: Hypokalemia occurs in anterior wall and right ventricular AMI patients. AMI patients with hypokalemia prone ventricular arrhythmia