Intrauterine pressure in acute iatrogenic hydramnios.

Amnioinfusion has become a common intrapartum procedure for the relief of cord compression. We report a case of acutely increased intrauterine pressure during amnioinfusion with maternal but not fetal distress. An important decrease in pressure and symptomatology occurred with withdrawal of only a small amount of fluid. Further study is needed of pressure-volume relationships in the uterus and effects on uteroplacental perfusion. Careful attention must be paid to infusion volumes and intrauterine pressure during amnioinfusion.