Chapter 10: Complications of Labor and Birth

Dystocia, the abnormal progression of labor, represents the primary indication for cesarean birth and stems from dysfunction in the powers of contraction, characteristics of the fetus, or dimensions of the maternal pelvis. Hypertonic uterine dysfunction produces frequent but ineffective contractions failing to achieve cervical dilation, while hypotonic dysfunction involves weakened contractions insufficient for labor progression. Precipitous labor, occurring in fewer than three hours, poses maternal risks for hemorrhage and perineal trauma alongside fetal vulnerability to hypoxic injury. When labor requires acceleration or initiation, oxytocin serves as the primary pharmacological agent, though it carries the risk of uterine tachysystole, defined as excessive uterine activity exceeding five contractions per ten minutes, potentially compromising fetal oxygenation. Cervical readiness for induction is assessed using the Bishop scoring system, with mechanical and pharmacological ripening methods employed when needed. The chapter addresses operative vaginal delivery techniques utilizing vacuum and forceps assistance to shorten the second stage of labor while acknowledging associated maternal lacerations and fetal injury risks. Trial of labor after previous cesarean delivery offers vaginal birth potential but carries a small uterine rupture risk. Pregnancy complications including post-term gestation, meconium-stained amniotic fluid, intraamniotic infection, and intrauterine fetal demise require specialized nursing support and medical management. Obstetrical emergencies constitute life-threatening situations demanding immediate intervention, including shoulder dystocia managed through maneuvers such as maternal thigh flexion and suprapubic pressure, umbilical cord prolapse requiring elevation of the presenting part, vasa previa with potential for rapid fetal blood loss, uterine rupture causing maternal hemorrhage, and amniotic fluid embolism triggering cardiopulmonary collapse. Disseminated intravascular coagulation, a secondary coagulopathy resulting from various labor complications, depletes clotting factors and necessitates aggressive fluid resuscitation and blood product replacement alongside treatment of underlying causative factors.