H-FABP及cTnI联合检测在诊断新生儿低血糖后心肌损害中的应用

目的：探讨联合检测心脏型脂肪酸结合蛋白（H‐FABP）及肌钙蛋白I（cTnI）在诊断新生儿低血糖后心肌损害中的应用价值。方法82例新生儿低血糖症患儿（试验组）于发病后0～3、24、48 h分别测定血清 H‐FABP和cT nI水平，并与同一时期新生儿黄疸患儿30例（对照组）比较。按血糖下降水平（1．0～2．1 mmol／L、＜1．0 mmol／L组）、低血糖持续时间（＜24 h、≥24 h组）、低血糖临床表现（有症状、无症状组）进行分组比较。分析H‐FABP和cT nI检测的灵敏度、特异度。结果0～3、24 h试验组H‐FABP水平高于对照组（P＜0．01），48 h差异无统计学意义（P＞0．05）；0～3 h试验组与对照组cTnI差异无统计学意义（P＞0．05），24、48 h实验组cTnI水平高于对照组（P＜0．01）。血糖小于1．0 mmol／L、低血糖持续时间大于或等于24 h、有低血糖症状组H‐FABP及cTnI水平高于对应的其他组别（P＜0．05、P＜0．01、P＜0．01）。发病后0～3、48 h ，H‐FABP与cTnI联合检测的灵敏度优于二者单独检测的灵敏度，二者联合检测的特异度与单独检测无明显差异。结论 H‐FABP与cT nI联合检测在低血糖后心肌损害的诊断中具有较好的应用价值。

Application of combined detection of H-FABP with cTnI in the diagnosis of myocardial damage caused by hypoglycemia

Objective To investigate the clinical value of combined detection of H‐FABP with cTnI in the diagnosis of myo‐cardial damage caused by hypoglycemia .Methods Levels of blood H‐FABP and cTnI were examined at 0 to 3 h ,24 h ,48 h after hy‐poglycemia diagnosed ,and were compared with the control group .The levels of H‐FABP and cTnI at 24 h after hypoglycemia diag‐nosed were compared among different groups separated according to the decreasing extent of blood sugar (1 .0 to 2 .1 mmol/L ,<1 .0 mmol/L group) ,the duration of hypoglycemia (< 24 h ,≥ 24 h group) and clinical feature of hypoglycemia (symptom and no symptom group) .The sensitivity and specificity of H‐FABP and cTnI in myocardial damage was also statistical analyzed in this study . Results The statistic difference of the increasing H‐FABP levels was found for 0 to 3 h(P<0 .01) and 24 h (P<0 .01) ,but not found for 48 h(P>0 .05) .The statistic difference of the increasing cTnI levels existed for 24 h (P<0 .01) and 48 h (P<0 .01) ,but not for 0 to 3 h (P>0 .05) .The increasing extent of H‐FABP and cTnI levels was obvious for group with blood sugar <1 .0 mmol/L ,duration of hypoglycemia ≥24 h and have hypoglycemia symptom ,these data have obvious statistic difference compared with other groups(P<0 .05 ,P<0 .01 ,P<0 .01) .The sensitivity and specificity of H‐FABP methods were higher than those of cTnI ac‐cording to the 0 to 3 h and 24 h detection data ,while the opposite result was found for 48 h .Conclusion Combined detection of H‐FABP with cTnI could be well applied in the diagnosis of myocardial damage caused by hypoglycemia .