Intestinal Atresia in Extremely Low Birth Weight Infants Caused by postnatal Intestinal Volvulus : A Case Report

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  • 出生後に小腸捻転によって小腸閉鎖が完成したと考えられる超低出生体重児の1例
  • 症例報告 出生後に小腸捻転によって小腸閉鎖が完成したと考えられる超低出生体重児の1例
  • ショウレイ ホウコク シュッショウゴ ニ ショウチョウ ネンテン ニ ヨッテ ショウチョウ ヘイサ ガ カンセイシタ ト カンガエラレル チョウテイシュッショウ タイジュウジ ノ 1レイ

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In this study, we present a boy born at 22 gestational weeks. His birth weight was 461 g. Meconium was passed normally, and tube feeding was started when he was 2 days old. However, his abdomen distended, and a roentgenogram showed dilated bowels when he was 14 days old. Amidotrizoic acid enema demonstrated no evidence of a microcolon: however the contrast medium could not enter the dilated bowels. Abdominal distension improved, and feeding could be resumed for a while after the enema. However, surgery was necessary when the patient was 48 days old because the abdominal distension worsened. The distal end of the ileum was entwined with the proximal end, and it was incarcerated in the mesenteric pouch. When the intestinal volvulus and incarceration were released, intestinal atresia was observed at approximately 35 cm away from the cecum. Intestinal atresia in extremely low birth weight birth infants is quite rare because it occurs during the late stage of embryo development. This case demonstrated that intestinal atresia could occur even during the postnatal period in low birth weight infants.

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