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The Genetics of Chiari Type I Malformation

2014-09-16 13:06:09 | BioPortfolio

Published on BioPortfolio: 2014-09-16T13:06:09-0400

Clinical Trials [158 Associated Clinical Trials listed on BioPortfolio]

Chiari Study Looking at Use of Duragen Versus Duraguard

Since Chiari malformation is a common disease, many patients require surgical operation to relieve pressure from the back portion of the skull. The purpose of this research is to compare t...

Genetic Analysis of the Chiari I Malformation

The purpose of this study is to better understand the genetic factors related to the Chiari I malformation. In people with this abnormality, the lower part of the skull is smaller than no...

Arnold Chiari Malformation: the Otological Assessment as an Objective Criteria for Surgical Treatment

The aim of this study is to compare the value of multifrequency tympanometry between patients with surgical indication of treatment for a Chiari type I malformation and healthy volunteers.

Posterior Fossa Decompression With or Without Duraplasty for Chiari Type I Malformation With Syringomyelia

The purpose of this study is to determine whether a posterior fossa decompression or a posterior fossa decompression with duraplasty results in better patient outcomes with fewer complicat...

Duragen Versus Duraguard in Chiari Surgery

The study evaluates two materials used for duraplasty of the posterior cranial fossa in treatment of Chiari malformation. One material (DuraGen) is a non-suturable collagen matrix that is ...

PubMed Articles [7269 Associated PubMed Articles listed on BioPortfolio]

Long-term Outcomes of a New Minimally Invasive Approach in Chiari Type 1 and 1.5 Malformations: Technical Note and Preliminary Results.

The treatment options for patients with Chiari malformation type-1(CM1) and Chiari malformation type-1.5(CM1.5) have not yet been standardized. In these malformations, the main factors include obstruc...

Time to Resolution of Symptoms After Suboccipital Decompression with Duraplasty in Children with Chiari Malformation Type I.

Duraplasty is one technique successfully used to treat Chiari malformation type I (CM-I). This study describes the timely manner of clinical outcomes and the postoperative course after craniectomy and...

Cerebral Diffusivity Changes in Fetuses with Chiari II Malformation.

Chiari II malformation is a congenital abnormality characterized by a small posterior fossa with downward displacement of the hindbrain into the foramen magnum. Diffusion-weighted imaging (DWI) can be...

Evaluation of soft tissue hypertrophy at the retro-odontoid space in patients with Chiari malformation type I on magnetic resonance imaging.

Chiari malformation type I (CM-I) is a well-known hindbrain disorder in which the cerebellar tonsils protrude through the foramen magnum. The soft tissues, including the transverse ligament and the te...

Epidemiology of Symptomatic Chiari Malformation in Tatarstan: Regional and Ethnic Differences in Prevalence.

Epidemiology can assess the effect of Chiari I malformation (CM1) on the neurological health of a population and evaluate factors influencing CM1 development.

Medical and Biotech [MESH] Definitions

A group of congenital malformations involving the brainstem, cerebellum, upper spinal cord, and surrounding bony structures. Type II is the most common, and features compression of the medulla and cerebellar tonsils into the upper cervical spinal canal and an associated MENINGOMYELOCELE. Type I features similar, but less severe malformations and is without an associated meningomyelocele. Type III has the features of type II with an additional herniation of the entire cerebellum through the bony defect involving the foramen magnum, forming an ENCEPHALOCELE. Type IV is a form a cerebellar hypoplasia. Clinical manifestations of types I-III include TORTICOLLIS; opisthotonus; HEADACHE; VERTIGO; VOCAL CORD PARALYSIS; APNEA; NYSTAGMUS, CONGENITAL; swallowing difficulties; and ATAXIA. (From Menkes, Textbook of Child Neurology, 5th ed, p261; Davis, Textbook of Neuropathology, 2nd ed, pp236-46)

Congenital, or rarely acquired, herniation of meningeal and spinal cord tissue through a bony defect in the vertebral column. The majority of these defects occur in the lumbosacral region. Clinical features include PARAPLEGIA, loss of sensation in the lower body, and incontinence. This condition may be associated with the ARNOLD-CHIARI MALFORMATION and HYDROCEPHALUS. (From Joynt, Clinical Neurology, 1992, Ch55, pp35-6)

A congenital anatomic malformation of a bile duct, including cystic dilatation of the extrahepatic bile duct or the large intrahepatic bile duct. Classification is based on the site and type of dilatation. Type I is most common.

A benign tumor resulting from a congenital malformation of the lymphatic system. Lymphangioendothelioma is a type of lymphangioma in which endothelial cells are the dominant component.

Heterogeneous disorders of cortical malformation characterized by excessive and small fused gyri and shallow sulci of the CORTEX with abnormal cortical lamination. It is considered a malformation secondary to abnormal post-migrational development of the neurons during cerebral cortical development and is associated with EPILEPSY and learning difficulties.

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