Arnold-Chiari type I malformation presenting as benign paroxysmal positional vertigo in an adult patient

2006 ◽  
Vol 121 (3) ◽  
pp. 296-298
Author(s):  
M Unal ◽  
C Bagdatoglu
Keyword(s):  
Benign Paroxysmal Positional Vertigo ◽  
Foramen Magnum ◽  
Upper Cervical Spine ◽  
Type I ◽  
Chiari Type ◽  
Chiari Type I Malformation ◽  
Positional Vertigo ◽  
Upper Cervical ◽  
Chiari Type I ◽  
Paroxysmal Positional Vertigo

Arnold-Chiari malformations are a group of congenital hindbrain and spinal cord abnormalities characterized by herniation of the contents of the posterior cranial fossa caudally through the foramen magnum into the upper cervical spine. It is important to recognize Arnold-Chiari type I malformation in the differential diagnosis of adult vertigo cases. We present a 51-year-old patient with Arnold-Chiari type I malformation that was initially diagnosed as posterior semicircular canal benign paroxysmal positional vertigo.

The Association of Chiari Type I Malformation and Neurofibromatosis Type 1

1993 ◽  
Vol 32 (3) ◽  
pp. 189-190 ◽  
Author(s):  
Joseph Dooley ◽  
Daniel Vaughan ◽  
Michael Riding ◽  
Peter Camfield
Keyword(s):  
Neurofibromatosis Type 1 ◽  
Chiari Malformation ◽  
Neurofibromatosis Type ◽  
Foramen Magnum ◽  
Type I ◽  
Chiari Type ◽  
Chiari Type I Malformation ◽  
Chiari Type I ◽  
Chiari Malformations

The association of neurofibromatosis type 1 (NF1) with Chiari malformations of the cerebellum and brain stem has been reported on only two previous occasions.1,2 The pathogenesis of both conditions has remained unclear, although the Chiari type I malformation is most likely due to hypoplasia of the posterior fossa with subsequent extension of the cerebellum through the foramen magnum.3 NF1 is also associated with a variety of cerebral dysplasias.4 We present a patient with both of these dysplastic lesions whose Chiari malformation was asymptomatic.

scholarly journals Improvement of syrinx resolution after tonsillar cautery in pediatric patients with Chiari Type I malformation

2016 ◽  
Vol 17 (2) ◽  
pp. 174-181 ◽  
Author(s):  
Kevin M. Stanko ◽  
Young M. Lee ◽  
Jennifer Rios ◽  
Adela Wu ◽  
Giovanna W. Sobrinho ◽  
...  
Keyword(s):  
Perioperative Complications ◽  
Binary Logistic Regression ◽  
Foramen Magnum ◽  
Type I ◽  
Binary Logistic Regression Model ◽  
Cerebrospinal Fluid Flow ◽  
Chiari Type ◽  
Chiari Type I Malformation ◽  
Surgical History ◽  
Chiari Type I

OBJECT Chiari Type I malformation involves caudal displacement of the cerebellar tonsils below the foramen magnum, which obstructs normal cerebrospinal fluid flow and increases intracranial pressure. Certain aspects of its surgical treatment remain controversial. A retrospective study was conducted to assess the efficacy of tonsillar cautery on syrinx resolution among pediatric Chiari patients undergoing cervicomedullary decompression. METHODS A retrospective cohort study was performed for patients 0–18 years of age who underwent surgical correction for Chiari Type I malformation with syrinx between 1995 and 2013. Basic demographic information was collected as well as data for preoperative symptoms, prior surgical history, perioperative characteristics, and postsurgical outcomes. Descriptive statistics were performed in addition to bivariate analyses. Candidate predictor variables were identified based on an association with tonsillar cautery with p < 0.10. Forward stepwise likelihood ratio was used to select candidate predictors in a binary logistic regression model (Pin = 0.05, Pout = 0.10) most strongly associated with the outcome. RESULTS A total of 171 patients with Chiari Type I malformation with syrinx were identified, and 43 underwent tonsillar cautery. Patients who underwent tonsillar cautery had 6.11 times greater odds of improvement in their syrinx (95% CI 2.57–14.49, p < 0.001). There was no effect of tonsillar cautery on increased perioperative complications as well as the need for repeat decompressions. CONCLUSIONS Tonsillar cautery is safe and effective in the treatment of Chiari Type I malformation with syrinx and may decrease time to syrinx resolution after cervicomedullary decompression. Tonsillar cautery does not increase postoperative complications in pediatric Chiari Type I malformation patients.

Technique for Mini-open Decompression of Chiari Type I Malformation in Adults

2017 ◽  
Vol 13 (4) ◽  
pp. 465-470 ◽  
Author(s):  
Peyman Pakzaban
Keyword(s):  
Neurological Complications ◽  
Craniocervical Junction ◽  
Type I ◽  
Invasive Approach ◽  
Chiari Type ◽  
Chiari Type I Malformation ◽  
Suboccipital Craniectomy ◽  
Upper Cervical ◽  
Mini Open ◽  
Chiari Type I

Abstract BACKGROUND: The technique for decompression of Chiari type I malformation relies on open exposure of craniocervical junction for suboccipital craniectomy and upper cervical laminectomy with or without duraplasty. There is no detailed technical report of a minimally invasive approach for Chiari decompression in adults. OBJECTIVE: To describe a mini-open technique for decompression of Chiari type I malformation (including duraplasty) in adults. METHODS: Six consecutive adult patients with symptomatic Chiari type I malformation underwent decompression through a 3 to 4 cm midline incision via a speculum retractor. All patients underwent a limited suboccipital craniectomy and C1 laminectomy with an ultrasonic bone scalpel. All patients underwent duraplasty with a synthetic dural substitute. In the 2 patients with syringomyelia, the arachnoid was opened and intradural dissection was carried out. In the remaining 4 patients, the arachnoid was left intact. RESULTS: All operations were completed successfully through the mini-open exposure. Mean surgery time, blood loss, and length of stay were 114 min, 55 mL, and 1.3 days, respectively. Mean follow-up was 13.2 months (range 9-18). All patients had excellent clinical outcomes as defined by scores of 15 (3 patients) or 16 (3 patients) on Chicago Chiari Outcome Scale. There were no neurological complications or cerebrospinal fluid leaks. Postop computed tomography revealed good boney decompression. In the 2 patients with syringomyelia, MRI at 6 months revealed resolution of the syrinx. CONCLUSION: Decompression of Chiari type I malformation in adults can be performed safely and effectively through the mini-open exposure described in this report.

Sign in / Sign up

Export Citation Format

Share Document