Sepúlveda W H, Araneda H, Villanueva J, Vera E, Ciuffardi I, Donetch G
Servicio de Obstetricia y Ginecología, Hospital Clínico Regional Guillermo Grant Benavente, Concepción.
Rev Chil Obstet Ginecol. 1992;57(1):30-3.
A new test for the evaluation of fetal lung maturity, called tap test, been recently developed. This rapid, inexpensive, and reliable test is easy to perform and can be used whenever testing for phospholipids are not available. We performed this test in 260 clear samples of amniotic fluid obtained by transabdominal amniocentesis and the results were compared with those of the "shake test". When the "shake test" was positive (n = 156), the tap test was consistent with fetal lung maturity in all cases. When the "shake test" was intermediate or negative (n = 61 and n = 43, respectively), the tap test was consistent with immaturity in only 19.2% of the cases. Fifty-four fetuses were born within 72 hours after the amniocentesis. The "shake test" was positive in 50, intermediate in 3, and negative in 1. In all but one of there cases the tap test was consistent with maturity. The only case of RDS in this series occurred in an infant with immature result. These findings indicate that the tap test is a reliable indicator of fetal pulmonary maturity and probably with a higher specificity than the "shake test".
一种名为轻拍试验的用于评估胎儿肺成熟度的新测试方法最近已被开发出来。这种快速、廉价且可靠的测试易于操作，并且在无法进行磷脂检测时均可使用。我们对通过经腹羊膜腔穿刺术获取的260份清亮羊水样本进行了此项测试，并将结果与“振荡试验”的结果进行了比较。当“振荡试验”呈阳性时（n = 156），轻拍试验在所有病例中均与胎儿肺成熟度相符。当“振荡试验”为中间结果或阴性时（分别为n = 61和n = 43），轻拍试验仅在19.2%的病例中与不成熟相符。54名胎儿在羊膜腔穿刺术后72小时内出生。“振荡试验”呈阳性的有50例，中间结果的有3例，阴性的有1例。在除1例之外的所有这些病例中，轻拍试验均与成熟度相符。该系列中唯一的1例呼吸窘迫综合征发生在1名检测结果不成熟的婴儿身上。这些发现表明，轻拍试验是胎儿肺成熟度的可靠指标，其特异性可能高于“振荡试验”。
