[Premature membrane rupture in preterm pregnancies. The timing for pregnancy termination]. / Ruptura prematura de membranas en embarazos de pretérmino. Momento de interrupción del embarazo.

A total of 82 patients with 28 to 36 weeks of pregnancy, with a average of 61 hours after premature rupture of membranes, were studied. The greatest frequency was seen from 30 to 33 weeks (57%). Phosphatidylglycerol determination in the first sample was positive in 64% of the patients. The conservative management is adequate only up to 32 weeks; thereafter, and with phosphatidyiglycerol present, pregnancy interruption, after an adequate materno-fetal evaluation, will mean a better prognosis for mother and child.