论文部分内容阅读
目的探讨检测胎儿大脑中动脉(MCA)血流参数和脐血乳酸水平预测胎儿宫内窘迫的临床价值。方法妊娠≥37周产妇68例;其中,诊断为慢性胎儿宫内窘迫34例(研究组),无慢性胎儿宫内窘迫34例(对照组)。采用彩色多普勒超声检测胎儿MCA的搏动指数(PI)、阻力指数(RI)和收缩期峰值流速与舒张末期流速比值(S/D),干片比色法测定胎儿脐动脉血乳酸值。结果研究组RI和S/D比值分别为0.56±0.21和2.80±1.08,低于对照组的1.21±0.49和4.48±1.14(P<0.05)。研究组脐血乳酸值高于对照组[(4.11±1.27)mmol/L vs.(3.32±1.07)mmol/L](P<0.05)。结论胎儿MCA血流参数及脐血乳酸水平测定有助于预测胎儿宫内窘迫的诊断和选择临床干预时机。
Objective To investigate the clinical value of fetal blood flow (MCA) and umbilical blood lactate levels in predicting fetal distress. Methods Sixty-eight pregnant women (≥37 weeks) were enrolled. Among them, 34 were diagnosed as chronic fetal distress (study group) and 34 were non-chronic fetal distress (control group). The pulsatility index (PI), resistance index (RI), peak systolic flow rate and end diastolic flow velocity ratio (S / D) of fetus MCA were measured by color Doppler sonography. Results The RI and S / D ratios in the study group were 0.56 ± 0.21 and 2.80 ± 1.08, respectively, which were lower than those in the control group (1.21 ± 0.49 and 4.48 ± 1.14, P <0.05). The umbilical blood lactic acid in the study group was higher than that in the control group [(4.11 ± 1.27) mmol / L vs. (3.32 ± 1.07) mmol / L] (P <0.05). Conclusion Fetal MCA blood flow parameters and umbilical cord blood lactate levels can be helpful in predicting fetal distress diagnosis and choosing the timing of clinical intervention.