目的:建立新生儿心肌肌钙蛋白T浓度的临床参考值范围,并研究呼吸窘迫患儿的心肌肌钙蛋白T浓度变化情况。方法:本试验属于前瞻性研究。收集某三级新生儿病房的病例,根据是否患有呼吸窘迫,分为患病组和健康组。对比两组婴儿心肌肌钙蛋白T浓度值,并考量 Objective: To establish the clinical reference value of neonatal cardiac troponin T concentration and study the changes of cardiac troponin T concentration in children with respiratory distress. Methods: This trial is a prospective study. The cases of a third grade neonatal ward were collected and divided into sick and healthy groups according to whether they had respiratory distress. Comparing the values ​​of cardiac troponin T concentrations in two groups of infants, and considering