ISSN 2398-2942      

Resection: patent urachus

icanis
Contributor(s):

Jacqueline Davidson

Synonym(s): Persistent urachus resection


Introduction

  • The urachus is an embryonic tube that connects the fetal bladder to the allantoic sac. Normally, the urachus atrophies and is non-functional at birth.
  • If urachal atrophy is incomplete, there may be a vesicourachal diverticulum, urachal cyst, or a patent urachus from the bladder to the umbilicus.
  • With patent urachus (also called persistent urachus Persistent urachus ), entire urachus is patent so urine evacuates through both the umbilicus and the urethra.
  • Clinical signs of patent urachus include urinary tract infection, omphalitis and ventral dermatitis. Usually apparent in neonate, but may be older.
  • Diagnosis is based on clinical signs and confirmed by positive contrast cystography Radiography: cystography or ultrasonography Ultrasonography: bladder and urinary tract.
  • Treatment of choice is surgical excision.

Uses

  • Excision of the persistent urachus, including its attachments to the bladder and umbilicus.

Requirements

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Preparation

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Procedure

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Aftercare

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Outcomes

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Prognosis

  • Excellent.

Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Laverty P H & Salisbury S K (2002) Surgical management of true patent urachus in a cat. JSAP 43 (5), 227-229 PubMed.

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