Key Considerations for Managing Postterm Pregnancy:
1. Accurate determination of clinical gestational age is crucial for diagnosis. Careful evaluation based on menstrual history, early pregnancy tests, and pregnancy symptoms is essential. For pregnancies without regular monitoring, gather all available information and verify gestational age repeatedly.
2. The current clinical practice of inducing labor to prevent post-term pregnancy warrants discussion. Waiting for spontaneous labor at 41 weeks is feasible.However, decisions beyond 41 weeks should be based on a comprehensive assessment of actual gestational age, fetal heart rate monitoring, cervical ripening, amniotic fluid volume, estimated fetal weight, and maternal preference. Individualized management is emphasized, weighing benefits and risks. For women with an immature cervix, close monitoring of fetal heart rate changes while awaiting spontaneous labor is recommended. If labor has not commenced by 42 weeks, induction may be reconsidered.
3. If the mother requests induction before 42 weeks, she must be informed of the risks: potential induction failure, cesarean section, fetal distress due to hypertonic uterine contractions, and increased likelihood of vaginal delivery assistance.
4. Postterm pregnancy often involves placental insufficiency, with fetal distress frequently occurring during labor.Labor is a particularly critical phase in post-term pregnancy, as complications often arise during this stage. Fetal heart rate electronic monitoring should be initiated immediately.
5. In post-term pregnancies without placental insufficiency, continued fetal growth increases the likelihood of macrosomia and cephalopelvic disproportion. Reassess fetal size and evaluate for cephalopelvic disproportion to minimize the risk of shoulder dystocia.