Adopt a wait-and-see attitude for patent processus vaginalis in neonates

Akira Toki, Yasuhiro Watanabe, Kiyoshi Sasaki, Morimichi Tani, Kaoru Ogura, Zhong Qiu Wang

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26 Citations (Scopus)

Abstract

Purpose: The purpose of this paper is to describe the ultrasonographic findings of the patent processus vaginalis (PPV) in neonates. Methods: The patency of the processus vaginalis was examined by ultrasonography in 117 neonates. The ultrasonographic findings, with increment and decrement of the intraabdominal pressure, were categorized into 6 types as follows: type I, the intraabdominal organ is observed; type II, cystic PPV; type III, the PPV is widened with abdominal pressure increment, the length is ≥20 mm; type IV, the PPV contains moving fluid without PPV widening; type V, the PPV is widened with abdominal pressure increment, the length is less than 20 mm; type VI, others. The authors we regarded types I to IV as PPV with inguinal hernia. Results: Twenty-two of 40 neonates with a birth weight under 2,500 g had PPV, including 8 with type I. Twenty of 37 premature neonates 22 to 37 gestational weeks had PPV, including 8 with type I. Eighty-one percent (13 of 16) of PPV in low-birth-weight neonates and 91% (10 of 11) in premature neonates closed spontaneously. The median ages at the time of spontaneous regression of PPV were 242 days in low birth weight neonates and 262 days in premature neonates. Conclusions: Most premature or low-birth-weight neonates with PPV regress spontaneously. The inguinal hernia in neonates (especially in premature or low-birth-weight neonates) should be observed until at least 9 months of age without attempting hernia repair.

Original languageEnglish
Pages (from-to)1371-1373
Number of pages3
JournalJournal of Pediatric Surgery
Volume38
Issue number9
DOIs
Publication statusPublished - Sep 1 2003

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Keywords

  • Inguinal hernia
  • Low-birth-weight neonate
  • Patent process vaginalis
  • Premature neonate
  • Ultrasonography

ASJC Scopus subject areas

  • Surgery
  • Pediatrics, Perinatology, and Child Health

Cite this

Toki, A., Watanabe, Y., Sasaki, K., Tani, M., Ogura, K., & Wang, Z. Q. (2003). Adopt a wait-and-see attitude for patent processus vaginalis in neonates. Journal of Pediatric Surgery, 38(9), 1371-1373. https://doi.org/10.1016/S0022-3468(03)00398-1