Tags

Type your tag names separated by a space and hit enter

Arachnoid veils and the Chiari I malformation.
J Neurosurg. 2004 May; 100(5 Suppl Pediatrics):465-7.JN

Abstract

OBJECT

The literature contains scant data regarding variations in anatomy at the level of the foramen of Magendie in patients with Chiari I malformation and syringomyelia.

METHODS

Based on their operative experience and hospital data, the authors detailed the incidence of arachnoid veils found in juxtaposition to the foramen of Magendie in patients with hindbrain herniation. Additionally, radiological studies were retrospectively reviewed in cases in which such an anomaly was noted intraoperatively. Of 140 patients with Chiari I malformation who underwent decompressive surgery, an associated syrinx was demonstrated in 80 (57%). The foramen of Magendie was obstructed by an arachnoid veil in 10 (12.5%) of these patients; once the lesion was punctured, the cerebrospinal fluid drained freely from this median aperture. On retrospective review of imaging studies, none of these anomalous structures was evident. In all patients with an arachnoid veil and syringomyelia resolution of syringomyelia was revealed on postoperative imaging.

CONCLUSIONS

In the absence of a clear pathophysiology of syrinx production, the authors would recommend that patients with syringomyelia and Chiari I malformation undergo duraplasty so that, if present, these veils can be fenestrated.

Authors+Show Affiliations

Department of Cell Biology, University of Alabama at Birmingham, USA. richard.tubbs@ccc.uab.eduNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

15287456

Citation

Tubbs, R Shane, et al. "Arachnoid Veils and the Chiari I Malformation." Journal of Neurosurgery, vol. 100, no. 5 Suppl Pediatrics, 2004, pp. 465-7.
Tubbs RS, Smyth MD, Wellons JC, et al. Arachnoid veils and the Chiari I malformation. J Neurosurg. 2004;100(5 Suppl Pediatrics):465-7.
Tubbs, R. S., Smyth, M. D., Wellons, J. C., & Oakes, W. J. (2004). Arachnoid veils and the Chiari I malformation. Journal of Neurosurgery, 100(5 Suppl Pediatrics), 465-7.
Tubbs RS, et al. Arachnoid Veils and the Chiari I Malformation. J Neurosurg. 2004;100(5 Suppl Pediatrics):465-7. PubMed PMID: 15287456.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Arachnoid veils and the Chiari I malformation. AU - Tubbs,R Shane, AU - Smyth,Matthew D, AU - Wellons,John C,3rd AU - Oakes,W Jerry, PY - 2004/8/4/pubmed PY - 2004/9/3/medline PY - 2004/8/4/entrez SP - 465 EP - 7 JF - Journal of neurosurgery JO - J Neurosurg VL - 100 IS - 5 Suppl Pediatrics N2 - OBJECT: The literature contains scant data regarding variations in anatomy at the level of the foramen of Magendie in patients with Chiari I malformation and syringomyelia. METHODS: Based on their operative experience and hospital data, the authors detailed the incidence of arachnoid veils found in juxtaposition to the foramen of Magendie in patients with hindbrain herniation. Additionally, radiological studies were retrospectively reviewed in cases in which such an anomaly was noted intraoperatively. Of 140 patients with Chiari I malformation who underwent decompressive surgery, an associated syrinx was demonstrated in 80 (57%). The foramen of Magendie was obstructed by an arachnoid veil in 10 (12.5%) of these patients; once the lesion was punctured, the cerebrospinal fluid drained freely from this median aperture. On retrospective review of imaging studies, none of these anomalous structures was evident. In all patients with an arachnoid veil and syringomyelia resolution of syringomyelia was revealed on postoperative imaging. CONCLUSIONS: In the absence of a clear pathophysiology of syrinx production, the authors would recommend that patients with syringomyelia and Chiari I malformation undergo duraplasty so that, if present, these veils can be fenestrated. SN - 0022-3085 UR - https://www.unboundmedicine.com/medline/citation/15287456/Arachnoid_veils_and_the_Chiari_I_malformation_ L2 - https://thejns.org/doi/10.3171/ped.2004.100.5.0465 DB - PRIME DP - Unbound Medicine ER -