O65.4

Clinical Causes: Pelvic abnormalities such as narrow or irregular pelvis shape Large fetus (macrosomia) which exceeds the pelvic capacity Fetal anomalies that hinder passage through the birth canal Birth position issues that complicate labor progression Previous pelvic injuries or surgeries leading to structural changes

Key Symptoms: Prolonged labor beyond the expected duration Persistent fetal heart rate abnormalities indicating distress Maternal symptoms such as exhaustion, back pain, or swelling Failure of the cervix to dilate or the baby to descend despite contractions Signs of fetal distress, including abnormal heart rhythms

Diagnosis Path: Physical examination to evaluate maternal pelvis size and shape Monitoring labor progress through vaginal examinations Ultrasound imaging to estimate fetal size and position Pelvimetry, which may be done via physical assessment or imaging to measure pelvic dimensions Continuous fetal heart rate monitoring to detect signs of distress Assessment of labor progress against expected standards

Treatment Protocols: Assisting labor with methods such as forceps or vacuum extraction if criteria are met Administering medications to augment or induce labor when appropriate Performing a cesarean section if vaginal delivery is deemed unsafe or impossible Providing supportive care for the mother during labor, including hydration and pain management Post-delivery care for both mother and newborn, especially if complications arise