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Meconium peritonitis in utero.

S Kamata1, K Nose, S Ishikawa

  • 1Department of Pediatric Surgery, Osaka University Medical School, Suita, Japan.

Pediatric Surgery International
|August 24, 2000
PubMed
Summary
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Prenatal ultrasound (US) helps predict outcomes for fetuses with meconium peritonitis (MP). Identifying specific US findings can guide perinatal management and improve prognosis for newborns with this condition.

Area of Science:

  • Perinatology
  • Fetal Surgery
  • Neonatal Medicine

Background:

  • Meconium peritonitis (MP) is a serious fetal condition requiring accurate prenatal diagnosis.
  • Understanding the relationship between in utero clinical features and postnatal prognosis is crucial for effective management.

Purpose of the Study:

  • To correlate prenatal ultrasound (US) findings in fetuses diagnosed with meconium peritonitis (MP) with their postnatal outcomes.
  • To evaluate the utility of fetal US in predicting the severity and guiding the management of MP.

Main Methods:

  • Retrospective review of 20 fetuses diagnosed with MP over 17 years.
  • Classification of fetuses into three types based on US findings: massive meconium ascites (Type I), giant pseudocyst (Type II), and calcification/small pseudocyst (Type III).

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  • Analysis of associated findings such as polyhydramnios, fetal hydrops, and intestinal abnormalities, alongside perinatal interventions and outcomes.

    • Main Results:

    • Abdominal calcifications were present in 5 cases; polyhydramnios and fetal hydrops were noted in 7 and 3 fetuses, respectively, often associated with preterm delivery (<36 weeks).
    • Nine neonates required cardiopulmonary resuscitation, with 18 cases of intestinal atresia and 2 of distal ileal fecal obstruction identified.
    • Mortality rate was 20% (4/20 infants) due to respiratory failure and surgical complications.

    Conclusions:

    • Prenatal ultrasound classification of meconium peritonitis (MP) into distinct types provides valuable prognostic information.
    • Fetal US findings correlate with the need for resuscitation, presence of intestinal anomalies, and gestational age at delivery.
    • Careful fetal US evaluation is essential for optimal perinatal planning and management of meconium peritonitis.