Arnold Chiari malformation

Baba, Yahya; training, Townsville

doi:10.53347/rid-18872

Cited by 3 publications

(3 citation statements)

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“…Chiari malformations types I through IV are a group of congenital posterior fossa abnormalities affecting the structural relationships between the bony cranial base, cerebellum, brainstem, and cervical cord 11 . Chiari malformation type I is defined as a descent of the cerebellar tonsils below the foramen magnum by 5 mm or more 12 . Patients may have an associated cervical syrinx 13 .…”

Section: Anesthesia Considerations For Patients With Neurologic Diseasementioning

confidence: 99%

Neurologic Complications of Obstetric Anesthesia

Waters¹

2022

CONTINUUM: Lifelong Learning in Neurology

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PURPOSE OF REVIEW: The advantages of neuraxial anesthesia over general anesthesia in the obstetric population are well established. Some neurologic conditions have the potential to lower the safety threshold for administration of neuraxial anesthesia, whereas others require special consideration before using general anesthesia. The aim of this article is to help neurologists determine when neuraxial anesthesia can be safely administered and when it is inadvisable.RECENT FINDINGS: Neuraxial anesthesia can usually be given safely in most pregnant patients with neurologic disease. Patients with mass lesions causing increased intracranial pressure or spinal tumors at the site of neuraxial needle placement and patients on anticoagulant medication are the exceptions. Post-dural puncture headaches and obstetric nerve injuries are the most common complications of neuraxial anesthesia and resolve in most patients. Other complications, including epidural hematoma, meningitis, and epidural abscess, are rare but devastating. SUMMARY: This article provides a review of neurologic diseases that may affect the decision-making process for anesthesia during delivery. It discusses the neurologic complications that can occur because of obstetric anesthesia and how to recognize them and describes obstetric nerve injuries and how to distinguish these relatively benign injuries from more serious complications.

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Section: Anesthesia Considerations For Patients With Neurologic Diseasementioning

confidence: 99%

Neurologic Complications of Obstetric Anesthesia

Waters¹

2022

CONTINUUM: Lifelong Learning in Neurology

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“…[1] This disorder manifests in the head, dural, cerebral cortex, and spinal column, with a horizontal migration inside the cortex, 4 th ventricle, or cerebellum through the posterior spinal canal, together with pons and forth ventricle expansion, probably due to a small posterior fossa. [2,3] Differential diagnoses include spinal tumors, CM-I, and encephalocele. Other disorders to consider are 4th ventricular cell tumor, Lhermitte-Duclos sickness, rhombencephalon synapsis, and tectocerebellar dysgraphia-associated posterior encephalocele.…”

Section: Introductionmentioning

confidence: 99%

Managing Chiari Ii Malformation in a Complex Pediatric Case: A Report

Radhanpura,

Gadhiya,

Tirgar

2024

Int. J. Pharm. Sci. Drug Res.

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Chiari II malformation (CM-II) is an innate CNS condition in which the medulla oblongata, pons, fourth ventricle, and cerebellum move lower inside the spinal canal. This abnormality is one of the leading causes of neonatal and infant death. The diagnosis of CM-II in the patient necessitates a thorough understanding of the findings. In this case report, we demonstrate a Chiari malformation II identified by MRI of the brain and spine. This case also highlights the need for neuropsychological evaluation in CM-II in terms of providing guidance for psychoeducation and psychotherapy.

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“…10.3389/fnana.2023.1116948 (Hidalgo et al, 2022), which may prevent this malformation, and due to unknown rates of miscarriage. For the same reasons, there are only a few prospective, longitudinal, and well-designed Chiari II studies.…”

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confidence: 99%

Abnormal prenatal brain development in Chiari II malformation

et al. 2023

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IntroductionThe Chiari II is a relatively common birth defect that is associated with open spinal abnormalities and is characterized by caudal migration of the posterior fossa contents through the foramen magnum. The pathophysiology of Chiari II is not entirely known, and the neurobiological substrate beyond posterior fossa findings remains unexplored. We aimed to identify brain regions altered in Chiari II fetuses between 17 and 26 GW.MethodsWe used in vivo structural T2-weighted MRIs of 31 fetuses (6 controls and 25 cases with Chiari II).ResultsThe results of our study indicated altered development of diencephalon and proliferative zones (ventricular and subventricular zones) in fetuses with a Chiari II malformation compared to controls. Specifically, fetuses with Chiari II showed significantly smaller volumes of the diencephalon and significantly larger volumes of lateral ventricles and proliferative zones.DiscussionWe conclude that regional brain development should be taken into consideration when evaluating prenatal brain development in fetuses with Chiari II.

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Arnold Chiari malformation

Cited by 3 publications

References 0 publications

Neurologic Complications of Obstetric Anesthesia

Neurologic Complications of Obstetric Anesthesia

Managing Chiari Ii Malformation in a Complex Pediatric Case: A Report

Abnormal prenatal brain development in Chiari II malformation

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