Garry D, Lysikiewicz A, Mays J, Canterino J, Tejani N
Department of Obstetrics and Gynecology, New York Medical College, Westchester County Medical Center, Valhalla, USA.
J Perinatol. 1998 Jul-Aug;18(4):284-6.
Our purpose was to measure intra-amniotic pressure before and after decompression amniocentesis in twin-twin transfusion syndrome.
Intra-amniotic pressures were measured during decompression amniocentesis on 18 occasions in 5 pregnancies complicated by twin-twin transfusion syndrome. The intra-amniotic pressure was determined with a water manometer before and after removal of amniotic fluid. For comparison, intra-amniotic pressure was determined in 10 uncomplicated gestations.
Initial intra-amniotic pressures in twin-twin transfusion gestations (mean, 17.2 +/- 5.2 cm H2O; range, 5.5 to 33.0 cm H2O) were higher than those of the uncomplicated gestations (mean, 8.4 +/- 3.3 cm H2O; range, 3.5 to 13.5 cm H2O; p < 0.002). Intra-amniotic pressures following therapeutic amniocentesis (mean, 10.9 +/- 5.1 cm H2O; range, 3.5 to 23.0 cm H2O) were not different from those of the uncomplicated gestations (p = 0.16).
The intra-amniotic pressure in twin-twin transfusion gestations is higher than that of the uncomplicated gestation. Decompression amniocentesis reduces intra-amniotic pressure to that of the uncomplicated gestation.
我们的目的是测量双胎输血综合征减压羊膜腔穿刺术前、后的羊膜腔内压力。
在5例并发双胎输血综合征的妊娠中，进行了18次减压羊膜腔穿刺术，并测量羊膜腔内压力。在抽取羊水前后，用水压计测定羊膜腔内压力。作为对照，在10例正常妊娠中测定羊膜腔内压力。
双胎输血综合征妊娠的初始羊膜腔内压力（平均值为17.2±5.2 cmH₂O；范围为5.5至33.0 cmH₂O）高于正常妊娠（平均值为8.4±3.3 cmH₂O；范围为3.5至13.5 cmH₂O；p<0.002）。治疗性羊膜腔穿刺术后的羊膜腔内压力（平均值为10.9±5.1 cmH₂O；范围为3.5至23.0 cmH₂O）与正常妊娠无差异（p = 0.16）。
双胎输血综合征妊娠的羊膜腔内压力高于正常妊娠。减压羊膜腔穿刺术可将羊膜腔内压力降至正常妊娠水平。
