A 27-year-old G1P1 experiences a sudden gush of vaginal bleeding and severe lower abdominal pain immediately following the delivery of the placenta. The patient is tachycardic at 122/min, and her blood pressure is 85/50 mmHg. On physical examination, the uterine fundus is absent from the periumbilical region, and a smooth, round, beefy red mass is visualized protruding through the vaginal introitus. An initial attempt at immediate manual replacement is unsuccessful due to a tightly contracted lower uterine segment.
Arrange the following management steps in the most appropriate chronological sequence for this patient.
- 1Discontinue any ongoing administration of uterotonic medications.
- 2Administer a short-acting uterine relaxing agent (e.g., intravenous nitroglycerin).
- 3Apply steady upward pressure to manually replace the uterus into the pelvic cavity.
- 4Administer high-dose uterotonic agents to establish a firm, contracted uterus.
- 5Perform a bimanual examination and evaluate for any retained placental tissue.
Answer
The correct sequence is to first discontinue ongoing uterotonics, then administer a uterine relaxant, manually replace the uterus, restart high-dose uterotonics, and finally evaluate the cavity for retained tissue.
The patient presents with an acute uterine inversion, characterized by severe postpartum hemorrhage, an unpalpable abdominal fundus, and a protruding vaginal mass. The management of uterine inversion follows a strict sequence to ensure the uterus can be physically replaced while minimizing blood loss. First, all uterotonic agents must be halted to prevent the lower uterine segment from contracting further. Second, because the initial attempt at replacement failed due to a contracted ring, a fast-acting uterine relaxant (such as IV nitroglycerin or terbutaline) is administered to relax the cervical ring. Third, the relaxed uterus is manually pushed cephalad along the vaginal axis to its normal anatomic position. Fourth, once the uterus is correctly positioned, high-dose uterotonics are immediately restarted to firmly contract the myometrium, arresting the hemorrhage and preventing the uterus from re-inverting. Finally, with the uterus stabilized in the pelvis, the cavity is explored for retained placental fragments and lacerations to ensure complete hemostasis.
Step-by-Step Solution
Key Concept
Management of acute uterine inversion requires a sequential approach: stopping uterotonics, administering a uterine relaxant to allow for manual replacement, restoring normal anatomy, and immediately reinitiating uterotonics to maintain uterine tone.