Reuss A, Wladimiroff J W, vd Wijngaard J A, Pijpers L, Stewart P A
Academic Hospital Rotterdam-Dijkzigt, Erasmus University, The Netherlands.
Ultrasound Med Biol. 1987 Oct;13(10):619-24. doi: 10.1016/0301-5629(87)90059-7.
Measurement of the head-to-abdomen (H/A) ratio for differentiating between symmetrical and asymmetrical IUGR may be difficult in the presence of marked oligohydramnios. A total of 76 cases of IUGR with various degrees of oligohydramnios was studied. Sixteen (59%) out of 27 structural defects represented bilateral renal agenesis, 11 of which were diagnosed prenatally. When only the H/A ratio was measured (n = 29) the sensitivity in picking up a structural defect was 50%. Calculation of the pulsatility index in the umbilical artery and fetal internal carotid artery (n = 47), whether or not combined with amnioinfusion (n = 5), resulted in a sensitivity of 76%. It is suggested that the latter two techniques may provide valuable additional information as to the cause of IUGR.
在羊水过少明显的情况下，测量头腹（H/A）比值以区分对称型和不对称型胎儿生长受限（IUGR）可能会很困难。本研究共纳入76例不同程度羊水过少的IUGR病例。27例结构缺陷中有16例（59%）为双侧肾缺如，其中11例在产前被诊断。仅测量H/A比值时（n = 29），发现结构缺陷的敏感性为50%。计算脐动脉和胎儿颈内动脉的搏动指数（n = 47），无论是否联合羊膜腔灌注（n = 5），敏感性为76%。提示后两种技术可能为IUGR的病因提供有价值的额外信息。
