Abstract
The Chiari I malformation represents a complex disease and its pathophysiology is not completely understood and consequently different surgical procedures have been proposed in the literature. The use of MRI have increased the diagnosis of Chiari I malformation but generally the Chiari I is characterized by the herniation of tonsils at 5 mm below the plane of the occipital hole. The consequent disturbance of the CSF circulation at the level of the cranio-vertebral junction favors the occurence of the syrinx between 20 and 70% of cases in pediatric series. Different surgical techniques have been proposed. We report two series of patients treated with the same surgical procedure except for the use of a Goretex dural patch in the second group with better clinical results. Our experience seems to confirm that the Chiari I malformation is a complex disease in which the impairment of the CSF circulation plays an important role to explain the severity of the clinical picture. The bone decompression and the restauration of the CSF circulation with a dural patch with Goretex seems to be effective for improving the clinical picture with good results.
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References
Alzate JC, Kothabauer KF, Jallo GL, Epstein FJ (2001) Treatment of Chiari I malformation in patients with and without syringomyelia: a consecutive series of 66 cases. Neurosurg Focus 11(1):E3
Bertrand G (1973) Dynamic factors in the evolution of syringomyelia and syringobulbia. Clin Neurosurg 20:322–333
Caitilin E. Hoffman, Mark M. Souweidane. Cerebrospinal fluid-related complications with autologous duraplasty and arachnoid spering in Type I Chiari Malformations. (March 2008) Neurosurgery 62 ONS suppl 1:ONS156–ONS161
Durham SR, Fjeld–Olenec K (2008) Comparison of posterior fossa decompression with and without duroplasty for the surgical treatment of Chiari malformation type I in pediatric patients: a meta analysis. J Neurosurg Pediat 2:42–49
Novegno F, Caldarelli M, Massa A, Chieffo D, Massimi L, Pettorini B, Tamburrini G (2008) The natural history of the Chiari I anomaly. J Neurosurg Pediatr 2:179–187
Gardner WJ (1965) Hydrodynamics mechanism of syringomyelia: its relationship to myelocele. J Neurol Neurosurg Psychiatry 28:247–259
MCGirt MJ, Atiba A, Attanello FJ, Wasserman BA, Datoo G, Gathinji M, Carson B, Weingart JD, Jallo GI (2008) Correlation of hindbrain CSF flow and outcome after surgical decompression for Chiari I malformation. Child Nerv Sys 24:833–840
Galarza M, Sood S, Ham S (2007) Relevance of surgical strategies for the management of pediatric Chiari type I malformation. Child Ner Syst 23:691–696
James HE, Brant A (2002) Treatment of the Chiari malformation with bone decompression without durotomy in children and young adults. Chid’s Nerv Syst 18:202–206
Lazareff JA, Galarza M, Gravori T (2002) Tonsillectomy without craniectomy for the management of infantile Chiari I malformation. J Neurosurg 97:1018–1022
Marin-Padilla M, Marin-Padilla TM (1981) Morphogenesis of experimentally induced Arnold Chiari malformation. J Neurolog Sci 50:29–55
McLone DG, Diaz MS (2003) The Chiari II malformation: cause and impact. Child Nerv Syst 19:540–550
Milhorat TH, Chou MW, Trinidad EM (1999) Chiari I malformation redifinided: clinical and radiographic findings for 364 symptomatic patients. Neurosurgery 44:1005–1017
Oldfield EH, Murasko K, Shawker TH, Patronas NJ (1994) Pathophysiology of syringomyeliaassociated withChiari I malformation of the cerebellar tonsils: implication for diagnosis and treatment. J Neurosurg 80:3–15
Paniraghi M, Reddy BP, ReddyJJM (2004) CSF flow in Chiari I malformation. Child Nerv Syst 20(5):336–340
Schjiman E, Steinbock P (2000) International survey on the management of Chiari I malformation and syringomyelia. Child Nerv Syst 20:341–348
Steinbok P (2004) Clinical features of Chiari Imalformations. Childs Nerv Syst 20:329–331
Tubbs RS, Mc Girt MJ, Oakes WJ (2003) Surgical experience in 130 pediatric patients with Chiari I malformation. J Neurosurg 99:291–296
Ventureyra EC, Aziz HA, Vassilyadi M (2003) The role of cine flow MRI in children with Chiari malformation. Child Nerv Syst 19:109–113
Williams B (1990) Syringomyelia. Neurosurg Clin North Am 1:653–685
Zerah M (1999) Syringomyelia in children. Neurochirurgie 45(Suppl. 1):37–57
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Mottolese, C., Szathmari, A., Simon, E. et al. Treatment of Chiari type I malformation in children: the experience of Lyon. Neurol Sci 32 (Suppl 3), 325–330 (2011). https://doi.org/10.1007/s10072-011-0685-2
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DOI: https://doi.org/10.1007/s10072-011-0685-2