Titre du document / Document title

Long-term results using adjunctive mitomycin C in optic nerve sheath decompression for pseudotumor cerebri

Auteur(s) / Author(s)

SPOOR T. C. ; MCHENRY J. G. ; SHIN D. H. ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

Wayne State univ., Kresge eye inst., Detroit MI, ETATS-UNIS

Résumé / Abstract

Purpose : Up to 35% of patients undergoing optic nerve sheath decompression (ONSD) for pseudotumor cerebri who show initial improvement in visual function later show deterioration in visual field and acuity. Although repeat surgery can result in subsequent visual improvement, these procedures are technically difficult because of scarring and fibrosis. Attempting to improve the long-term success of ONSD, the authors sought to analyze the long-term success of ONSD by pretreating optic nerve sheaths with mitomycin C before incision. Methods : Using a standard transconjunctival medial orbitotomy, optic nerve sheaths were exposed and treated for 5 minutes with mitomycin C (0.5 mg/ml)-soaked neurosurgical cottonoids before incision. Results : Both eyes undergoing repeat ONSD with adjunctive mitomycin C had initial improvement and stable visual function for follow-up of more than 3 years. Four eyes that underwent primary ONSD all initially showed improvement in visual field. Three eyes with large cysts or fistulas remained stable. Another eye had gradual decline in visual function. Repeat ONSD in this eye showed no orbital scarring, and lysis of adhesions between dura-arachnoid and optic nerve resulted in improved, stable visual function for 31 months of follow-up. Conclusion : Mitomycin C appears to be a safe adjunct to ONSD in a series of six patients followed between 20 and 37 months. Fistulization and cyst formation are associated with improved visual function. Closure of cysts and fistulas may result in worsening visual function due to intersheath adhesions. Repeat surgery shows significantly less orbital scarring and allows for easier and successful repeat surgery. Adjunctive mitomycin C leads to less orbital scarring after ONSD, allowing for easier repeat surgery.

Revue / Journal Title

Ophthalmology   ISSN 0161-6420   CODEN OPHTDG 

Source / Source

1995, vol. 102, n^o12, pp. 2024-2028 (15 ref.)

Langue / Language

Anglais

Editeur / Publisher

Elsevier, New York, NY, ETATS-UNIS  (1976) (Revue)

Mots-clés anglais / English Keywords

Pseudotumor ; Brain (vertebrata) ; Surgical decompression ; Optic nerve ; Antimetabolic ; Chemotherapy ; Local administration ; Associated technique ; Result ; Long term ; Human ; Tumor ; Nervous system diseases ; Cerebral disorder ; Surgery ;

Mots-clés français / French Keywords

Pseudotumeur ; Encéphale ; Décompression chirurgicale ; Nerf optique ; Mitomycine ; Antimétabolite ; Chimiothérapie ; Voie locale ; Technique associée ; Résultat ; Long terme ; Homme ; Tumeur ; Système nerveux pathologie ; Encéphale pathologie ; Chirurgie ;

Mots-clés espagnols / Spanish Keywords

Seudotumor ; Encéfalo ; Descompresión quirúrgica ; Nervio óptico ; Antimetabólito ; Quimioterapia ; Vía local ; Técnica asociada ; Resultado ; Largo plazo ; Hombre ; Tumor ; Sistema nervioso patología ; Encéfalo patología ; Cirugía ;

Localisation / Location

INIST-CNRS, Cote INIST : 18914, 35400005527552.0450