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Chiari malformation type 1

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https://www.readbyqxmd.com/read/29788393/epidemiology-of-symptomatic-chiari-malformation-in-tatarstan-regional-and-ethnic-differences-in-prevalence
#1
Enver I Bogdanov, Aisylu T Faizutdinova, Elena G Mendelevich, Alexey S Sozinov, John D Heiss
BACKGROUND: Epidemiology can assess the effect of Chiari I malformation (CM1) on the neurological health of a population and evaluate factors influencing CM1 development. OBJECTIVE: To analyze the regional and ethnic differences in the prevalence of CM1. METHODS: The population of the Republic of Tatarstan (RT) in the Russian Federation was evaluated for patients with CM1 symptoms over an 11-yr period. Typical symptoms of CM1 were found in 868 patients...
May 21, 2018: Neurosurgery
https://www.readbyqxmd.com/read/29733988/cardiac-related-spinal-cord-tissue-motion-at-the-foramen-magnum-is-elevated-in-type-i-chiari-malformation-patients-and-decreases-post-decompression-surgery
#2
Braden J Lawrence, Mark Luciano, John Tew, Richard G Ellenbogen, John N Oshinski, Francis Loth, Amanda P Culley, Bryn A Martin
OBJECTIVE: Type 1 Chiari malformation (CM-I) is a craniospinal disorder historically defined by cerebellar tonsillar position (TP) greater than 3-5mm below the foramen magnum (FM). This definition has come under question since quantitative measurements of cerebellar herniation do not always correspond with symptom severity. Researchers have proposed several additional radiographic diagnostic criteria based on dynamic motion of fluids and/or tissues. The present study objective was to determine if cardiac-related craniocaudal spinal cord tissue displacement is an accurate indicator of the presence of CM-I and if tissue displacement is altered with decompression...
May 4, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29732422/developments-in-the-treatment-of-chiari-type-1-malformations-over-the-past-decade
#3
Peter G Passias, Alexandra Pyne, Samantha R Horn, Gregory W Poorman, Muhammad B Janjua, Dennis Vasquez-Montes, Cole A Bortz, Frank A Segreto, Nicholas J Frangella, Matthew Y Siow, Akhila Sure, Peter L Zhou, John Y Moon, Bassel G Diebo, Shaleen N Vira
Background: Chiari malformations type 1 (CM-1), a developmental anomaly of the posterior fossa, usually presents in adolescence or early adulthood. There are few studies on the national incidence of CM-1, taking into account outcomes based on concurrent diagnoses. To quantify trends in treatment and associated diagnoses, as retrospective review of the Kid's Inpatient Database (KID) from 2003-2012 was conducted. Methods: Patients aged 0-20 with primary diagnosis of CM-1 in the KID database were identified...
March 2018: Journal of Spine Surgery (Hong Kong)
https://www.readbyqxmd.com/read/29701558/syringobulbia-in-pediatric-patients-with-chiari-malformation-type-i
#4
Arnold H Menezes, Jeremy D W Greenlee, Brian J Dlouhy
OBJECTIVE Syringobulbia (SB) is a rare entity, with few cases associated with Chiari malformation type I (CM-I) in the pediatric population. The authors reviewed all pediatric cases of CM-I-associated SB managed at their institution in order to better understand the presentation, treatment, and surgical outcomes of this condition. METHODS A prospectively maintained institutional database of craniovertebral junction abnormalities was analyzed to identify all cases of CM-I and SB from the MRI era (i.e., after 1984)...
April 27, 2018: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29698796/long-term-outcomes-of-a-new-minimally-invasive-approach-in-chiari-type-1-and-1-5-malformations-technical-note-and-preliminary-results
#5
Kadir Kotil, Selcuk Ozdogan, Selim Kayaci, Hanife Gulden Duzkalir
PURPOSE: 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 obstruction at the level of the foramen magnum, dural and ligamentous thickening. Here we have presented our outcomes of surgery and decompression using minimal invasive surgery(MIS) technique. MATERIALS AND METHODS: Sixty-one patients admitted to our clinics between 2009 and 2016 due to CM1 or CM1...
April 23, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29652242/chiari-decompression-outcomes-using-ligamentum-nuchae-harvest-and-duraplasty-in-pediatric-patients-with-chiari-malformation-type-i
#6
Michael J Cools, Carolyn S Quinsey, Scott W Elton
OBJECTIVE The choice of graft material for duraplasty in decompressions of Chiari malformations remains a matter of debate. The authors present a detailed technique for harvesting ligamenta nuchae, as well as the clinical and radiographic outcomes of this technique, in a case series. METHODS The authors conducted a retrospective study evaluating the outcomes of Chiari malformation type I decompression and duraplasty in children aged 0-18 years at a single institution from 2013 to 2016. They collected both intraoperative and postoperative variables and compared them qualitatively to published data...
April 13, 2018: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29570035/predictors-of-mortality-in-children-with-myelomeningocele-and-symptomatic-chiari-type-ii-malformation
#7
Michael M McDowell, Jason E Blatt, Christopher P Deibert, Nathan T Zwagerman, Zachary J Tempel, Stephanie Greene
OBJECTIVE Chiari malformation type II (CM-II) in myelomeningocele is associated with a significant rate of mortality and poor outcome. Death is frequently heralded by the onset or progression of neurological symptoms. The authors sought to identify predictors of poor outcome and mortality within the myelomeningocele population at Children's Hospital of Pittsburgh. METHODS A retrospective chart and radiology review was performed on all infants who underwent primary closure of a myelomeningocele defect at Children's Hospital of Pittsburgh between the years of 1995 and 2015...
March 23, 2018: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29538039/endoscopic-endonasal-approach-to-the-upper-cervical-spine-for-decompression-of-the-cervicomedullary-junction-following-occipitocervical-fusion
#8
Ibrahim Hussain, Theodore H Schwartz, Jeffrey P Greenfield
Basilar invagination is defined as abnormal upward and/or posterior displacement of the odontoid leading to ventral compression of the cervicomedullary junction. This condition leads to lower cranial neuropathies, sensorimotor deficits, and myelopathy. These symptoms can persist even after posterior decompression, which is an indication for ventral decompression. Transoral approaches to the upper cervical spine carry significant morbidity, limiting their utility. The endonasal approach to the upper cervical spine presents an alternative for patients with amenable anatomy...
March 13, 2018: Clinical Spine Surgery
https://www.readbyqxmd.com/read/29482005/efficacy-of-posterior-fossa-decompression-with-duraplasty-for-patients-with-chiari-malformation-type-i-a-systematic-review-and-meta-analysis
#9
REVIEW
Zhi Chai, Xiaoming Xue, Huijie Fan, Lin Sun, Hongyu Cai, Yanmiao Ma, Cungen Ma, Ran Zhou
OBJECTIVE: To quantitatively assess and compare the effectiveness and safety of posterior fossa decompression with duraplasty (PFDD) and posterior fossa decompression (PFD) in treating patients with Chiari malformation type I. METHODS: PubMed, Embase, and Cochrane Library were searched through May 2017. Fourteen cohort studies comprising 3666 patients with Chiari malformation type I were included. Studies were pooled, and the relative risk (RR) and corresponding 95% confidence interval (CI) were calculated...
May 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29470234/incidence-of-neuraxial-abnormalities-is-approximately-8-among-patients-with-adolescent-idiopathic-scoliosis-a-meta-analysis
#10
Michael Faloon, Nikhil Sahai, Todd P Pierce, Conor J Dunn, Kumar Sinha, Ki Soo Hwang, Arash Emami
BACKGROUND: Several studies have sought to address the role of routine preoperative MRI in patients with adolescent idiopathic scoliosis (AIS) undergoing deformity correction. Despite similar results regarding the prevalence of neuraxial anomalies detected on MRI, published conclusions conflict and give opposing recommendations. Lack of consensus has led to important variations in use of MRI before spinal surgery for patients with AIS. QUESTIONS/PURPOSES: This systematic review and meta-analysis of studies about patients with AIS evaluated (1) the overall proportion of neuraxial abnormalities; (2) the patient factors and curve characteristics that may be associated with abnormalities; and (3) the proportion of patients who underwent neurosurgical intervention before scoliosis surgery and the kinds of neuraxial lesions that were identified...
February 21, 2018: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/29451451/critical-assessment-of-pediatric-neurosurgery-patient-parent-educational-information-obtained-via-the-internet
#11
Michael Garcia, Christopher Daugherty, Bertha Ben Khallouq, Todd Maugans
OBJECTIVE The Internet is used frequently by patients and family members to acquire information about pediatric neurosurgical conditions. The sources, nature, accuracy, and usefulness of this information have not been examined recently. The authors analyzed the results from searches of 10 common pediatric neurosurgical terms using a novel scoring test to assess the value of the educational information obtained. METHODS Google and Bing searches were performed for 10 common pediatric neurosurgical topics (concussion, craniosynostosis, hydrocephalus, pediatric brain tumor, pediatric Chiari malformation, pediatric epilepsy surgery, pediatric neurosurgery, plagiocephaly, spina bifida, and tethered spinal cord)...
May 2018: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29429251/-comparison-of-the-pulmonary-function-between-adolescent-patients-with-chiari-malformation-associated-scoliosis-and-idiopathic-scoliosis
#12
Y C Zhang, S F Sha, E Z Jiang, W B Li, Y Qiu, Z Z Zhu
Objective: To compare the pulmonary function between adolescent patients with Chiari malformation associated scoliosis (CMS) and adolescent idiopathic scoliosis (AIS). Methods: A retrospective analysis was performed on 52 patients with CMS, and 52 patients with AIS were selected as the control group to match the CMS patients by age, sex, and Cobb angle. Preoperative pulmonary function tests were completed by all the patients, including vital capacity (VC), forced vital capacity (FVC), forced expiratory volume in one second (FEV(1)), maximal mid-expiratory flow (MMEF), and ratio of FEV(1) to FVC...
February 6, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29415676/chiari-malformation-type-1-presenting-as-unilateral-progressive-foot-drop-a-case-report-and-review-of-literature
#13
Chamara Jayamanne, Lakkumar Fernando, Sachith Mettananda
BACKGROUND: Foot drop is a disabling clinical condition with multiplicity of causes, which requires detailed evaluation to identify the exact aetiology. Here, we report an extremely rare cause of foot drop in a child, which if not recognized early, could lead to multiple complications. CASE PRESENTATION: A 6-year-old girl presented with difficulty in walking and left sided foot droop for1-month duration. On examination she had reduced muscle power in dorsiflexors and plantar flexors and diminished knee and absent ankle jerk in the left side...
February 7, 2018: BMC Pediatrics
https://www.readbyqxmd.com/read/29403363/a-retrospective-2d-morphometric-analysis-of-adult-female-chiari-type-i-patients-with-commonly-reported-and-related-conditions
#14
Maggie S Eppelheimer, James R Houston, Jayapalli R Bapuraj, Richard Labuda, Dorothy M Loth, Audrey M Braun, Natalie J Allen, Soroush Heidari Pahlavian, Dipankar Biswas, Aintzane Urbizu, Bryn A Martin, Cormac O Maher, Philip A Allen, Francis Loth
Purpose: Researchers have sought to better understand Chiari type I malformation (CMI) through morphometric measurements beyond tonsillar position (TP). Soft tissue and bone structures within the brain and craniocervical junction have been shown to be different for CMI patients compared to healthy controls. Yet, several morphological characteristics have not been consistently associated with CMI. CMI is also associated with different prevalent conditions (PCs) such as syringomyelia, pseudotumor, Ehlers-Danlos syndrome (EDS), scoliosis, and craniocervical instability...
2018: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/29403156/chiari-type-1-malformation-associated-with-central-sleep-apnea-after-high-dose-growth-hormone-gh-therapy-in-a-12-year-old-boy-a-case-report
#15
Toshihiko Mori, Eri Nishino, Tomomi Jitsukawa, Emiko Hoshino, Satoshi Hirakawa, Yuki Kuroiwa, Shigeto Fuse, Yuko Yoto, Hiroyuki Tsutsumi
We describe the case of a short-statured 12-yr-old boy who developed a Chiari type 1 malformation associated with central sleep apnea after administration of high-dose GH therapy, which he had been receiving since the age of 10 yr and 4 mo. He responded well to GH therapy, and his height increased by 18.8 cm in 2 yr. At 12 yr and 4 mo of age, his mother reported that he had developed sleep apnea during the previous year and it had worsened over a month prior to presentation at our hospital. Otolaryngological examination did not reveal tonsillar or adenoidal hypertrophy...
2018: Clinical Pediatric Endocrinology: Case Reports and Clinical Investigations: Official Journal of the Japanese Society for Pediatric Endocrinology
https://www.readbyqxmd.com/read/29396718/chiari-type-i-malformation-of-infants-and-toddlers
#16
Gordan Grahovac, Tatiana Pundy, Tadanori Tomita
OBJECTIVES: Chiari I malformation has been a well-recognized clinical entity; however, its occurrence among infants and toddlers is unusual. Their clinical presentations may be different from other age groups due to their lack of effective verbal communication. The authors analyze their personal series of patients focusing on symptomatology and MRI characteristics. Treatment methods, results, and outcome are analyzed in order to identify appropriate surgical management among infants and toddlers with Chiari I malformation...
February 2, 2018: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29395547/spinning-hurting-still-afraid-living-life-spaces-with-type-i-chiari-malformation
#17
Gavin J Andrews
Human geography's varied engagement with the brain has involved considerations of the way people know and respond to their environments, and their place-based experiences with emotions, mental illnesses and disorders, intellectual disabilities and particular neurological conditions. This paper argues however that this scholarship could be augmented by, and existing expertise be directed towards, considering physical brain abnormalities and injuries. As a case in point it considers the spatial experience of living with Type 1 Chiari Malformation...
January 31, 2018: Social Science & Medicine
https://www.readbyqxmd.com/read/29383213/a-case-of-a-girl-with-arnold-chiari-type-1-malformation-with-precocious-puberty
#18
Min Sun Kim, Pyoung Han Hwang, Dae-Yeol Lee
A small percentage of individuals have the neurological anomaly of central precocious puberty (CPP). Common neurologic causes of CPP include a tumor or congenital lesions. Although Arnold-Chiari malformation can be caused by congenital or acquired causes, it is unusual in patients with CPP. We present the case of a girl aged 4.5 years who complained of breast budding. Her neurological examination and growth pattern were normal. She had no endocrinological abnormality, except for true precocious puberty. We performed brain magnetic resonance imaging, which showed an Arnold-Chiari type 1 malformation...
January 2018: Korean Journal of Family Medicine
https://www.readbyqxmd.com/read/29354335/adult-chiari-type-1-malformation-with-holocord-syringomyelia-associated-with-sagittal-synostosis
#19
Masakazu Sano, Junichi Yoshimura, Yukihiko Fujii
Craniosynostosis associated with Chiari malformation (CM) is usually found in infants with an underdeveloped posterior fossa. We here present a case of adult craniosynostosis, CM, and symptomatic syringomyelia caused by the protrusion of the posterior rim of the foramen magnum without a tight posterior fossa. A 22-year-old woman with an abnormal head shape and forearm hypesthesia was given a diagnosis of sagittal suture synostosis with CM and syringomyelia caused by foramen magnum stenosis. She underwent foramen magnum decompression with a C1 laminectomy without cranial vault expansion or duraplasty...
January 2018: NMC Case Report Journal
https://www.readbyqxmd.com/read/29344999/the-newer-classifications-of-the-chiari-malformations-with-clarifications-an-anatomical-review
#20
Fatima Azahraa Haddad, Ibraheem Qaisi, Nagham Joudeh, Hamada Dajani, Fareed Jumah, Amjad Elmashala, Nimer Adeeb, Joshua J Chern, R Shane Tubbs
In 1891, Hans Chiari described a group of congenital hindbrain anomalies, which were eventually named after him. He classified these malformations into three types (Chiari malformations I, II, and III), and four years later added the Chiari IV malformation. However, numerous reports across the literature do not seem to fit Chiari's original descriptions of these malformations, so researchers have been encouraged to propose new classifications to encompass these variants (e.g., Chiari 0, Chiari1.5, and Chiari 3...
April 2018: Clinical Anatomy
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