Shoulder dystocia, uterine rupture, inversion and amniotic fluid embolism — the four that turn a normal birth into a crisis in seconds.
The head delivers, then retracts back against the perineum — the turtle sign. The anterior shoulder is stuck behind the pubic bone.
The clock starts immediately. Cord compression means the baby is not being oxygenated.
Never apply FUNDAL pressure. It drives the shoulder harder into the pubic bone and can rupture the uterus. Suprapubic only.
McRoberts works by rotating the pelvis, flattening the sacral promontory and freeing the shoulder. It is simple, non-invasive and resolves most cases.
Risk factors: macrosomia, maternal diabetes, previous dystocia, post-dates, obesity.
Complications: brachial plexus injury (Erb’s palsy), fractured clavicle, and for the mother, hemorrhage and lacerations. Examine the newborn’s arm movement and clavicle after.
The classic sign is that the pain suddenly STOPS, along with loss of contractions.
Pain that suddenly stops during strong labor is not relief. It is rupture until proven otherwise.
Highest risk: previous classical cesarean scar, oxytocin overstimulation, grand multiparity, trauma.
The uterus turns inside out, usually from traction on the cord or pressure on a non-contracted fundus.
Never pull on the umbilical cord to deliver the placenta, and never push on a soft fundus. Those are the two causes.
Amniotic fluid and fetal cells enter the maternal circulation and trigger a catastrophic reaction.
Rare, unpredictable, and one of the leading causes of maternal death.
Care is entirely supportive and immediate: oxygen, intubation, CPR if needed, massive transfusion, blood products for DIC, and emergency delivery.
There is no way to prevent or predict this one. Recognition and speed are everything.