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Zorluk: OrtaLabor, Delivery, and Puerperium

A 33-year-old woman, gravida 2, para 1, is evaluated in the birthing center at 39 weeks of gestation. She is undergoing a trial of labor after a previous low transverse cesarean delivery. Her prenatal course was uncomplicated. She is currently in the active phase of the first stage of labor, with contractions previously occurring every 3 minutes. Suddenly, the patient reports a sharp, continuous, tearing lower abdominal pain that is distinctly different from her previous contraction pain. Continuous fetal monitoring shows a sudden, prolonged deceleration with a baseline drop to 75/min for the past 4 minutes, and uterine contractions have ceased on the tocodynamometer. A sterile vaginal examination reveals the cervix is 7 cm dilated, and the fetal presenting part, which was previously at 0 station, is no longer palpable. Maternal blood pressure is 90/50 mm Hg and heart rate is 120/min. Which of the following is the most appropriate next step in management?

  1. Immediate laparotomy and cesarean deliveryCevap
  2. B
    Intravenous fluid bolus and maternal left lateral repositioning
  3. C
    Bedside transabdominal ultrasound of the uterus
  4. D
    Administration of broad-spectrum intravenous antibiotics
  5. E
    Reassurance and continued observation of labor progression

Cevap

Immediate laparotomy and cesarean delivery
The correct answer is immediate laparotomy and cesarean delivery. This patient's presentation is pathognomonic for uterine rupture. She is undergoing a trial of labor after a previous cesarean delivery, which is the primary risk factor. The classic triad includes sudden, severe tearing abdominal pain, an abnormal fetal heart rate tracing (most commonly bradycardia or deep variable decelerations), and a loss of fetal station on vaginal examination. Additionally, the cessation of uterine contractions on the monitor and maternal hemodynamic instability (hypotension and tachycardia) indicate severe internal hemorrhage. Immediate surgical exploration is required to deliver the fetus, control maternal bleeding, and repair or remove the ruptured uterus.

Adım Adım Çözüm

1
Analyze the patient's risk factors and acute clinical presentation.
The patient is undergoing a trial of labor after cesarean (TOLAC) and presents with sudden tearing pain, maternal hypotension, tachycardia, and a prolonged fetal heart rate deceleration.
Identifying the intersection of risk factors (prior uterine scar) and acute signs of shock/fetal distress is essential for diagnosis.
2
Interpret the physical examination findings.
The sudden cessation of uterine contractions on the tocodynamometer and the loss of fetal station (from 0 to unpalpable) are highly specific for uterine rupture.
When the uterus ruptures, it loses its ability to contract effectively, and the fetus can retract upward into the maternal abdomen.
3
Determine the necessary clinical intervention.
The patient requires immediate surgical exploration and delivery to control maternal hemorrhage and rescue the fetus.
Uterine rupture is an acute obstetric emergency; conservative or diagnostic delays significantly increase maternal and perinatal morbidity and mortality.

Anahtar Kavram

Uterine rupture is a catastrophic complication of labor, classically presenting with sudden abdominal pain, loss of fetal station, cessation of contractions, and fetal compromise, requiring emergent laparotomy.
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Konular

Labor, Delivery, and Puerperium

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