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chiari malformation

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https://www.readbyqxmd.com/read/29776403/rostral-cranial-fossa-as-a-site-for-cerebrospinal-fluid-drainage-volumetric-studies-in-dog-breeds-of-different-size-and-morphotype
#1
Wojciech Sokołowski, Norbert Czubaj, Michał Skibniewski, Karolina Barszcz, Marta Kupczyńska, Wojciech Kinda, Zdzisław Kiełbowicz
BACKGROUND: Hydrocephalus is a multifactorial condition, whose aetiology is not fully understood. Congenital hydrocephalus frequently occurs in small and brachycephalic dog breeds. Although it is widely accepted that the cribriform plate located in the rostral cranial fossa (RCF) is a site of cerebrospinal fluid (CSF) drainage, the RCF has not been studied extensively. Literature reports indicate that a decreased caudal cranial fossa (CCF) volume in the course of the Chiari-like malformation may obstruct CSF circulation...
May 18, 2018: BMC Veterinary Research
https://www.readbyqxmd.com/read/29775769/quality-of-life-after-combined-endonasal-endoscopic-odontoidectomy-and-posterior-suboccipital-decompression-and-fusion
#2
Malte Ottenhausen, Andrew F Alalade, Kavelin Rumalla, Prakash Nair, Ali Baaj, Roger Hartl, Ashutosh Kacker, Jeffrey P Greenfield, Vijay K Anand, Theodore H Schwartz
INTRODUCTION: Basilar invagination can result from a variety of systemic diseases that can weaken the structural integrity of the craniocervical junction. Definitive treatment often requires ventral decompression along with posterior decompression and fusion. Endonasal odontoidectomy is a relatively new minimal access procedure, however, quality of life after this procedure has not been reported. METHODS: We reviewed a consecutive database of endonasal odontoidectomy patients and identified those having posterior decompression and fusion...
May 15, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29774817/bladder-reconstruction-with-bowel-robot-assisted-laparoscopic-ileocystoplasty-with-mitrofanoff-appendicovesicostomy-in-pediatric-patients
#3
Nimrod S Barashi, Maria Veronica Rodriguez, Vignesh T Packiam, Mohan S Gundeti
Neurogenic bladder occur as a consequence of several conditions, most commonly posterior urethral valves syndrome, spina bifida, tethered cord, sacral agenesis, and Arnold-Chiari malformation. It is characterized by diminished bladder capacity and/or reduced compliance, associated with high-pressure voiding that can lead to deterioration of renal function if left untreated. When medical management fails, bladder reconstruction with bowel (aumentation ileocystoplasty) becomes the treatment of choice for these patients...
May 2018: Journal of Endourology
https://www.readbyqxmd.com/read/29766459/cognitive-functioning-in-chiari-malformation-type-i-without-posterior-fossa-surgery
#4
Maitane García, Esther Lázaro, Juan Francisco López-Paz, Oscar Martínez, Manuel Pérez, Sarah Berrocoso, Mohammad Al-Rashaida, Imanol Amayra
Chiari Malformation type I (CM-I) is a neurological disorder characterized by a displacement of the cerebellar tonsils through the foramen magnum into the spinal canal. Most research has focused on physical symptomatology but few studies include neuropsychological examinations. Moreover, although current research highlights the involvement of the cerebellum on higher cognitive functions, little is known about cognitive consequences associated with CM-I. The aim of this study is to analyze cognitive functioning between 39 CM-I patients and 39 healthy controls, matched by gender, age and years of education...
May 15, 2018: Cerebellum
https://www.readbyqxmd.com/read/29757766/comorbidities-associated-with-early-mortality-in-adults-with-spina-bifida
#5
Brad E Dicianno, Adam Sherman, Christian Roehmer, Christina K Zigler
OBJECTIVE: The purpose of this quality improvement project was to identify secondary conditions and medical comorbidities in adult patients with spina bifida and to determine which factors were associated with an earlier age of death. DESIGN: Retrospective chart review of 487 patients who attended the University of Pittsburgh Medical Center (UPMC) Adult Spina Bifida Clinic between August 1, 2005 and June 6, 2017. RESULTS: Out of 487 patients who had received care at the UPMC Adult Spina Bifida Clinic, 48 were deceased...
May 11, 2018: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/29750100/orofacial-clinical-features-in-arnold-chiari-type-i-malformation-a-case-series
#6
José-Alcides de Arruda, Eugênia Figueiredo, João-Luiz Monteiro, Livia-Mirelle Barbosa, Cleomar Rodrigues, Belmiro Vasconcelos
Background: Arnold Chiari malformation (ACM) is characterized by an anatomical defect at the base of the skull where the cerebellum and the spinal cord herniate through the foramen magnum into the cervical spinal canal. Among the subtypes of the condition, ACM type I (ACM-I) is particularly outstanding because of the severity of symptoms. This study aimed to analyze the orofacial clinical manifestations of patients with ACM-I, and discuss their demographic distribution and clinical features in light of the literature...
April 2018: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29748208/relationship-between-cough-associated-changes-in-csf-flow-and-disease-severity-in-chiari-i-malformation-an-exploratory-study-using-real-time-mri
#7
A F Bezuidenhout, D Khatami, C B Heilman, E M Kasper, S Patz, N Madan, Y Zhao, R A Bhadelia
BACKGROUND AND PURPOSE: Currently no quantitative objective test exists to determine disease severity in a patient with Chiari I malformation. Our aim was to correlate disease severity in symptomatic patients with Chiari I malformation with cough-associated changes in CSF flow as measured with real-time MR imaging. MATERIALS AND METHODS: Thirteen symptomatic patients with Chiari I malformation (tonsillar herniation of ≥5 mm) were prospectively studied. A real-time, flow-sensitized pencil-beam MR imaging scan was used to measure CSF stroke volume during rest and immediately following coughing and relaxation periods (total scan time, 90 seconds)...
May 10, 2018: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29740509/chiari-i-malformation-with-acute-neurological-deficit-after-craniocervical-trauma-case-report-imaging-and-anatomic-considerations
#8
Josha A Woodward, David E Adler
Background: In patients with Chiari I malformation (CMI), the occurrence of acute neurologic deficit after craniocervical trauma is rare. However, the pathologic potential of exacerbating anatomic overcrowding of the posterior fossa has immense clinical consequences and prompt recognition is essential. Case Description: This case study describes a 41-year-old male who sustained a single blow to the face, fell, and struck the occiput. On admission, neurological examination revealed a profound paraparesis, upper extremity diplegia, a C4 sensory level and apnea that required intubation...
2018: Surgical Neurology International
https://www.readbyqxmd.com/read/29734193/spontaneous-resolution-of-chiari-1-associated-syringomyelia-a-report-of-two-cases
#9
R Ramnarayan, C V Shankar Ganesh, Ramesh Kumar
BACKGROUND: Traditional teaching is that Chiari 1 malformations with syrinx should be operated as soon as possible. We present 2 cases of a radiologically proven Chiari 1 malformation with syrinx which were treated nonoperatively and improved radiologically. METHODS: Two children with an MRI-proven Chiari 1 malformations were followed up nonoperatively for 7 years (2010-2017). One was a boy aged 8 years and the other a girl aged 9 years at first presentation. Their parents were not interested in a surgical option and so it was decided to adopt a wait-and-watch policy...
May 7, 2018: Pediatric 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
#10
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
#11
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/29731280/-sandwich-deformity-in-klippel-feil-syndrome-a-full-spectrum-presentation-of-associated-craniovertebral-junction-abnormalities
#12
Yinglun Tian, Dongwei Fan, Nanfang Xu, Shenglin Wang
Klippel-Feil syndrome (KFS) is defined as congenital fusion of two or more cervical vertebrae resulting from a segmentation failure in the developing spine. According to Samartzis et al., the most commonly fused segments are found at C2/3 (74.1%) and C6/7 (70.4%). In patients with C2/3 fusion, especially when there is additional C1 occipitalization, several secondary anomalies including atlantoaxial dislocation (AAD), basilar invagination (BI), Chiari malformation, and syringomyelia can be identified. In this report, we present a case of a 12-year-old patient with C2/3 and occipitalization and a "Full-Spectrum" presentation of associated CVJ abnormalities including C0/1 fusion, AAD, BI, Chiari malformation, syringomyelia, myelopathy and cranial neuropathy received neurological decompression of the cervico-medullary junction by posterior reduction of the AAD and reconstruction of her CVJ using an unconventional hybrid construct due to a high-riding right vertebral artery in C2...
May 3, 2018: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29728620/author-correction-potential-damaging-mutation-in-lrp5-from-genome-sequencing-of-the-first-reported-chimpanzee-with-the-chiari-malformation
#13
Manuel Solis-Moruno, Marc de Manuel, Jessica Hernandez-Rodriguez, Claudia Fontsere, Alba Gomara-Castaño, Cristina Valsera-Naranjo, Dietmar Crailsheim, Arcadi Navarro, Miquel Llorente, Laura Riera, Olga Feliu-Olleta, Tomas Marques-Bonet
A correction to this article has been published and is linked from the HTML and PDF versions of this paper. The error has been fixed in the paper.
May 4, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29721352/dorsal-hemangioblastoma-manifesting-as-holocord-syringomyelia
#14
Gautam Dutta, Daljit Singh, Hukum Singh, Arvind K Srivastava, Anita Jagetia, Atul Agrawal
Background: Intramedullary spinal hemangioblastomas are known to be accompanied by syringomyelia. Case Description: Here, we report a patient who presented with symptoms of a Chiari malformation but was found to have a D4 intramedullary hemangioblastoma with a holocord syrinx. Conclusions: Although rare, neurosurgeons should keep in mind the possibility of an intramedullary hemangioblastoma in patients presenting with symptoms of a Chiari malformation...
2018: Surgical Neurology International
https://www.readbyqxmd.com/read/29709743/a-case-report-of-worth-syndrome-and-chiari-i-malformation-unusual-association-and-surgical-treatment
#15
Martin Andres Merenzon, Matias Agustin Dorman, Pablo Zuliani Sampaolesi, Pablo Alejandro Seoane, Fernando Latorre, Eduardo Roberto Seoane
BACKGROUND: Worth syndrome or Autosomal Dominant Endosteal Hyperostosis (ADEH) is an extremely rare genetic disease involving increased bone density. To the author's knowledge, this is the second case report of a family with neurological involvement associated with this condition along with its surgical treatment. The most effective treatment for clinically significant neurological symptoms in this scenario is currently unknown and there is very sparse experience on surgical treatment for this condition reported in the literature...
April 27, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29701558/syringobulbia-in-pediatric-patients-with-chiari-malformation-type-i
#16
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
#17
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/29688076/case-report-development-of-syringomyelia-after-anatomically-successful-craniovertebral-decompression-for-chiari-i-malformation-without-syrinx
#18
Joshua Pepper, Graham Flint
An 18 year old female with headaches and radiologically confirmed Chiari I malformation, without syringomyelia, underwent an anatomically and clinically successful craniovertebral decompression. Five years later she returned with extensive syringomyelia. This was treated successfully by division of an arachnoid web at the foramen of Magendie.
April 24, 2018: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/29684513/adult-chiari-i-malformations-an-analysis-of-surgical-risk-factors-and-complications-using-an-international-database
#19
Abhiraj D Bhimani, Darian R Esfahani, Steven Denyer, Ryan G Chiu, David Rosenberg, Ashley L Barks, Gregory D Arnone, Ankit I Mehta
BACKGROUND: Chiari I malformations are common in adults, and a frequent procedure in neurosurgical practice. Despite a number of studies, to date there is no consensus about the indications or surgical technique for this common condition. Growing emphasis on value-based care has emphasized reduction of readmissions and reoperations, and is particularly relevant in Chiari, which has traditionally been associated with a high complication rate. OBJECTIVE: To provide a contemporary surgical profile of risk factors and complications for Chiari I malformations in adults...
April 20, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29682049/primary-extradural-meningioma-of-posterior-fossa-associated-with-acquired-chiari-malformation-a-short-review
#20
Guru Dutta Satyarthee
Generally, meningioma is considered intracranial lesion occurring in the intradural compartment. However, meningioma can also occur and usually confined in the extradural compartment called as primary extradural meningioma (PEM). PEM represents a special subgroup of meningioma constitute about 1% of all meningioma. PEM arises outside the subdural compartment and usually contains neither connection underlying subdural structures nor extends into with subdural compartment. It is commonly located in the paranasal sinus, middle ear, rarely in the intradiploic spaces of calvarial bone such as temporal, frontal, and parietal bone and orbit but extremely uncommonly in the occipital and sphenoid bones...
April 2018: Asian Journal of Neurosurgery
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