title: Endoscopic aqueductoplasty in the treatment of aqueductal stenosis.
abstract: OBJECTIVE
  Endoscopic aqueductoplasty is an option in the treatment of obstructive hydrocephalus caused by aqueductal stenoses. We report on our experience with this endoscopic technique, focussing on indications, operative technique, and results.
  
  
  METHODS
  A series of 39 endoscopic aqueductoplasties was performed in 33 patients harbouring a hydrocephalus caused by aqueductal stenosis. In 13 patients, a third ventriculostomy was simultaneously performed. There was no endoscopy-related mortality. One aqueductoplasty had to be abandoned. In 7 patients, reclosure of the restored aqueduct required an endoscopic revision. In 25 patients (76%), the hydrocephalus-related symptoms resolved or improved. The condition was unchanged in 8 patients. Four patients needed to be shunted. The ventricles decreased in size in 22 patients (67%), were larger in 2, and unchanged in the remaining 9 patients.
  
  
  CONCLUSIONS
  Endoscopic aqueductoplasty is a treatment option in patients with hydrocephalus caused by membranous aqueductal stenosis. Unfortunately, the reclosure rate is higher than initially expected. More experience and longer follow-up are necessary to determine the value of endoscopic aqueductoplasty in the treatment of hydrocephalus caused by aqueductal stenosis.
authors.affiliation: Department of Neurosurgery, Ernst Moritz Arndt University, Sauerbruchstrasse, 17487 Greifswald, Germany. henry.schroeder@uni-greifswald.de
authors.forename: Henry W S
authors.initials: HW
authors.lastname: Schroeder
authors.forename: Joachim
authors.initials: J
authors.lastname: Oertel
authors.forename: Michael R
authors.initials: MR
authors.lastname: Gaab
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002535:Cerebral Aqueduct / Q000503:physiopathology / Q000601:surgery*; D002648:Child; D002675:Child, Preschool; D003251:Constriction, Pathologic / Q000150:complications / Q000601:surgery*; D004724:Endoscopy / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D006849:Hydrocephalus / Q000209:etiology / Q000601:surgery*; D007223:Infant; D008279:Magnetic Resonance Imaging / Q000379:methods; D019028:Magnetic Resonance Imaging, Cine / Q000379:methods; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012189:Retrospective Studies; D020542:Third Ventricle / Q000601:surgery; D016896:Treatment Outcome; D014696:Ventriculostomy / Q000379:methods