Endoscopic transnasal external fistulation in recurrent XXXX : a novel technique.

@entity1 @entity227 @entity932 @entity693 @entity292 @entity976 @entity10
UNASSIGNED: The authors present a technique for the persistent external drainage of intractable subdiaphragmatic cystic recurrences with the creation of a @entity292 between the cyst wall epithelium and epithelium on the nasal cavity, using a pedicled nasoseptal flap as a conduit. The long-term efficacy of endoscopic transnasal external fistulation (ETEF) in controlling cystic recurrences in this @entity1 group is addressed through a retrospective observational review of 3 male @entity1 aged 8, 22, and 45 years with the diagnosis of recurrent @entity976 who underwent the ETEF procedure between 2006 and 2009. Clinical presentation, neuroimaging, surgical interventions, and follow-up were recorded. The main outcome measure was cyst reaccumulation on MRI. @entity1 had a mean follow-up of 76 months (range 5-8 years) with no incidence of cystic recurrence. Follow-up imaging revealed sustained cyst involution contrary to the usual recurrent enlargement commonly seen in this @entity1 group. Symptoms of @entity10 and @entity227 improved post-ETEF. Long-term theoretical complications of a persistent @entity292 such as @entity932 , @entity693 , or CSF leak were not observed. ETEF promotes nasalization of cystic recurrences in @entity976 . It is safe and effective, causing long-term involution of cysts and can be considered a definitive procedure.
