History, anatomic forms, and pathogenesis of Chiari I malformations
@article{Schijman2003HistoryAF, title={History, anatomic forms, and pathogenesis of Chiari I malformations}, author={Edgardo Schijman}, journal={Child's Nervous System}, year={2003}, volume={20}, pages={323-328} }
IntroductionChiari I malformations constitute a group of entities of congenital or acquired etiology that have in common descent of the cerebellar tonsils into the cervical spinal canal. In recent years, since the advent of magnetic resonance imaging, an increasing number of asymptomatic, doubtfully symptomatic, and minimally symptomatic patients with Chiari I malformations have been diagnosed. This has resulted in controversy about the multiple therapeutic strategies indicated for these…
143 Citations
Current Concepts in the Pathogenesis, Diagnosis, and Management of Type I Chiari Malformations.
- MedicineRhode Island medical journal
- 2017
Type 1 Chiari malformations are a group of congenital or acquired disorders which include the abnormal presence of the cerebellar tonsils in the upper spinal canal, rather than the posterior fossa, which causes crowding of the structures at the craniocervical junction.
CHIARI MALFORMATION TYPE I – CASE REPORT AND REVIEW OF LITERATURE
- MedicineRomanian Journal of Neurology
- 2016
The case of a 44 year old woman with Chiari type I malformation and associated cervical syringomyelia is reported.
Chiari type I malformation in children.
- MedicineAdvances and technical standards in neurosurgery
- 2011
This paper reports on the state of the art and the recent achievements about CIM aiming at providing further information especially on the pathogenesis, the natural history, and the management of the malformation, which are the most controversial aspects.
Benign Chiari I Malformation
- Medicine
- 2020
A benign Chiari I malformation is one with minimal or no classical symptoms at presentation and no imaging evidence of syringomyelia, hydrocephalus, or spinal cord signal change and it is recommended clinical and radiographic follow-up of patients with benign CM I.
Surgical Management of Patients with Chiari I Malformation
- MedicineInternational journal of pediatrics
- 2012
A systematic and critical review of the pertinent literature was made for identifying the most commonly employed surgical procedures in the management of patients with symptomatic CM-I.
The pediatric Chiari I malformation: a review
- MedicineChild's Nervous System
- 2007
Analyzes the literature regarding this form of hindbrain herniation in regard to definition, anatomy, pathobiology, symptoms, findings, treatment, and outcomes to elucidate the optimal selection and treatment criteria.
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Brain magnetic resonance imaging confirmed a hypointense signal mass in the left hemisphere of the cerebellum causing mass effects on the fourth ventricle, which shifted it, accompanied with dilation of third and lateral ventricles.
Chiari Malformation and Syringomyelia
- Medicine
- 2013
Chiari malformations are a group of abnormalities of the hindbrain that were originally described in 1891 by Hans Chiari, a German professor, who created the classic definitions of hindbrain herniation now described as Chiari type I (CIM), ChiariType II (CIIM), and Chiaritype III (CIIIM) mal Formations.
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- Medicine
- 2017
This chapter discusses the pathophysiology, etiology, presenting symptoms, radiodiagnostic imaging, surgical management, and nursing care of children with Chiari malformation and/or syringomyelia.
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- MedicineInternational journal of pediatric otorhinolaryngology
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References
SHOWING 1-10 OF 87 REFERENCES
Acquired Chiari malformations: incidence, diagnosis, and management.
- MedicineNeurosurgery
- 1994
It is concluded that a craniospinal pressure gradient creates a potential for cerebellar tonsil descent and it is recommended that ventriculoperitoneal shunting be performed in children with communicating hydrocephalus to avoid this potential complication.
Pathophysiology of syringomyelia associated with Chiari I malformation of the cerebellar tonsils. Implications for diagnosis and treatment.
- MedicineJournal of neurosurgery
- 1994
Observations suggest the following previously unrecognized mechanism for progression of syringomyelia associated with occlusion of the subarachnoid space at the foramen magnum: the brain expands as it fills with blood during systole, imparting a systolic pressure wave to the intracranial CSF that is accommodated in normal subjects by sudden movement of CSF from the basal cisterns to the upper portion of the spinal canal.
Chiari I Malformation: Association With Seizures and Developmental Disabilities
- Medicine, PsychologyJournal of child neurology
- 1997
It is believed that Chiari I malformation should not be considered an incidental finding in patients with headache or symptoms of dysfunction of the cerebellum, brain stem, and cervical spinal cord, but may be a marker for subtle cerebral dysgenesis.
ARNOLD-CHIARI MALFORMATION: ANATOMIC FEATURES OF 20 CASES.
- MedicineArchives of neurology
- 1965
IN 1891, Chiari 1 described the anomalies of the hindbrain that he found in cases of congenital hydrocephalus and divided these malformations into four categories: Type 1 showed a variable…
Chiari I malformation redefined: clinical and radiographic findings for 364 symptomatic patients.
- MedicineNeurosurgery
- 1999
These data support accumulating evidence that CMI is a disorder of the para-axial mesoderm that is characterized by underdevelopment of the posterior cranial fossa and overcrowding of the normally developed hindbrain.
NEUROLOGIC SYNDROMES ACCOMPANYING DEVELOPMENTAL ANOMALIES OF OCCIPITAL BONE, ATLAS AND AXIS
- Medicine
- 1941
Among the developmental anomalies of the spine, the congenital malformations of the occipitocervical area have not called forth the clinical attention they deserve, but have been considered until…
Size of posterior fossa in Chiari type 1 malformation in adults
- MedicineActa Neurochirurgica
- 2005
The findings using posterior fossa ratio methods may strengthen the indications for suboccipital craniectomy in these patients, and are discussed in relation to the static and dynamic factors that are operating in the development of neurological symptoms in Chiari type 1 malformation.
ARNOLD-CHIARI MALFORMATION AND ITS OPERATIVE TREATMENT
- Medicine
- 1938
An operation is described in a case of the Arnold-Chiari malformation, with a discussion of the mechanism of its production and suggestions as to the proper operative treatment.
Tonsillar ectopia and Chiari malformations: monozygotic
- Medicine
- 1995
The discussion defines the current magnetic resonance criteria for diagnosis of hindbrain malformations and addresses the question of whether these disorders represent a spectrum or separate disease entities, with specific emphasis on genetic predisposition.
Hydrosyringomyelia and its management in childhood.
- MedicineNeurosurgery
- 1987
The Gardner procedure (decompression of the Chiari malformation and plugging of the obex) was the procedure most commonly used in managing this group of patients and resulted in improvement in over 70% of patients.