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目的研究职业性铅中毒患者乙二胺四乙酸(EDTA)驱铅治疗前后的心电图变化,探讨职业性铅中毒对心肌的损害。方法选取住院治疗的329例职业性铅中毒患者作为研究对象,在入院当天进行心电图检查,心电图异常患者进行血清心肌酶检查,并给予营养心肌,改善心肌代谢治疗。治疗后再次复查心电图和血清心肌酶,对比分析心电图的变化。结果在329例铅中毒患者中,心电图异常86例,发生率26.14%。驱铅治疗后,仍有30例患者心电图异常,发生率9.12%。复查心肌酶,所有患者心肌酶恢复正常。结论铅中毒患者的心电图异常率高,给予相应治疗后,部分患者心电图可恢复正常。
Objective To study the changes of electrocardiogram in lead poisoning patients before and after lead edema treatment to explore the damage of occupational lead poisoning to myocardium. Methods A total of 329 cases of occupational lead poisoning were selected as the study subjects. ECG was performed on the day of admission, serum myocardial enzymes were detected in patients with abnormal electrocardiogram, and myocardial nutrition was improved to improve myocardial metabolism. Electrocardiogram and serum myocardial enzymes were again reviewed after treatment, and electrocardiographic changes were compared. Results In 329 cases of lead poisoning, electrocardiogram abnormalities in 86 cases, the incidence rate of 26.14%. After removing lead, there are still 30 patients with ECG abnormalities, the incidence of 9.12%. Review myocardial enzymes, all patients returned to normal myocardial enzymes. Conclusion Lead poisoning patients with abnormal ECG rate, given the appropriate treatment, some patients return to normal ECG.