keyword
MENU ▼
Read by QxMD icon Read
search

Chiari I

keyword
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/29773701/accuracy-of-lung-cancer-icd-9-cm-codes-in-umbria-napoli-3-sud-and-friuli-venezia-giulia-administrative-healthcare-databases-a-diagnostic-accuracy-study
#2
Alessandro Montedori, Ettore Bidoli, Diego Serraino, Mario Fusco, Gianni Giovannini, Paola Casucci, David Franchini, Annalisa Granata, Valerio Ciullo, Maria Francesca Vitale, Michele Gobbato, Rita Chiari, Francesco Cozzolino, Massimiliano Orso, Walter Orlandi, Iosief Abraha
OBJECTIVES: To assess the accuracy of International Classification of Diseases 9th Revision-Clinical Modification (ICD-9-CM) codes in identifying subjects with lung cancer. DESIGN: A cross-sectional diagnostic accuracy study comparing ICD-9-CM 162.x code (index test) in primary position with medical chart (reference standard). Case ascertainment was based on the presence of a primary nodular lesion in the lung and cytological or histological documentation of cancer from a primary or metastatic site...
May 17, 2018: BMJ Open
https://www.readbyqxmd.com/read/29766459/cognitive-functioning-in-chiari-malformation-type-i-without-posterior-fossa-surgery
#3
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/29750100/orofacial-clinical-features-in-arnold-chiari-type-i-malformation-a-case-series
#4
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/29749883/rapid-sequence-brain-magnetic-resonance-imaging-for-chiari-i-abnormality
#5
James Pan, Jennifer L Quon, Eli Johnson, Bryan Lanzman, Anjeza Chukus, Allen L Ho, Michael S B Edwards, Gerald A Grant, Kristen W Yeom
OBJECTIVE Fast magnetic resonance imaging (fsMRI) sequences are single-shot spin echo images with fast acquisition times that have replaced CT scans for many conditions. Introduced as a means of evaluating children with hydrocephalus and macrocephaly, these sequences reduce the need for anesthesia and can be more cost-effective, especially for children who require multiple surveillance scans. However, the role of fsMRI has yet to be investigated in evaluating the posterior fossa in patients with Chiari I abnormality (CM-I)...
May 11, 2018: Journal of Neurosurgery. Pediatrics
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
#6
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
#7
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
#8
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
#9
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/29709743/a-case-report-of-worth-syndrome-and-chiari-i-malformation-unusual-association-and-surgical-treatment
#10
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
#11
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/29690960/is-hepatovenocaval-syndrome-a-different-entity-from-budd-chiari-syndrome-in-children
#12
Nadia Waheed, Huma Arshad Cheema, Hassan Suleman, Iqra Mushtaq, Zafar Fayyaz, Nadeem Anjum
OBJECTIVE: To differentiate between clinical and demographic spectrum, and outcome in hepatovenocaval syndrome (HVCS) and Budd-Chiari syndrome (BCS). STUDY DESIGN: Descriptive study. PLACE AND DURATION OF STUDY: Division of Pediatric Gastroenterology, Hepatology and Nutrition, The Children Hospital, Lahore, from January 2014 to January 2017. METHODOLOGY: All children less than 18 years of age, presenting with ascites and visible veins over abdomen, flanks and back were enrolled in the study...
May 2018: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/29688076/case-report-development-of-syringomyelia-after-anatomically-successful-craniovertebral-decompression-for-chiari-i-malformation-without-syrinx
#13
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
#14
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/29676862/mixed-phylogenetic-signal-in-fish-toxicity-data-across-chemical-classes
#15
Andrew Hylton, Ylenia Chiari, Isabella Capellini, Mace G Barron, Scott Glaberman
Chemical use in society is growing rapidly and is one of the five major pressures on biodiversity worldwide. Since empirical toxicity studies of pollutants generally focus on a handful of model organisms, reliable approaches are needed to assess sensitivity to chemicals across the wide variety of species in the environment. Phylogenetic comparative methods (PCM) offer a promising approach for toxicity extrapolation incorporating known evolutionary relationships among species. If phylogenetic signal in toxicity data is high, i...
April 2018: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/29671107/the-etiology-of-congenital-scoliosis-genetic-vs-environmental-a-report-of-three-monozygotic-twin-cases
#16
REVIEW
Woojin Cho, Nicholas Shepard, Vincent Arlet
PURPOSE: To describe the presence of congenital scoliosis in a genetically identical population as it relates to the possible genetic vs. environmental etiologic factors. METHODS: The authors describe three cases of congenital scoliosis in monozygotic twins. The first pair includes two 4-year-old girls presenting with mirror curves, one of whom had an associated stage I Chiari malformation. The second pair is a 4-year-old girl who presented with thoracic scoliosis, a T10-11 hemivertebra, and multilevel failure of segmentation in the lumbar spine whose identical sibling is unaffected...
April 18, 2018: European Spine Journal
https://www.readbyqxmd.com/read/29652242/chiari-decompression-outcomes-using-ligamentum-nuchae-harvest-and-duraplasty-in-pediatric-patients-with-chiari-malformation-type-i
#17
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/29624144/pilot-study-of-intracranial-venous-physiology-in-craniosynostosis
#18
Martijn J Cornelissen, Robbin de Goederen, Priya Doerga, Iris Cuperus, Marie-Lise van Veelen, Maarten Lequin, Paul Govaert, Irene M J Mathijssen, Jeroen Dudink, Robert C Tasker
OBJECTIVE In addition to craniocerebral disproportion, other factors, such as Chiari malformation type I, obstructive sleep apnea, and venous outflow obstruction, are considered to have a role in the occurrence of intracranial hypertension in craniosynostosis. This pilot study examined cerebral venous flow velocity to better characterize the complex intracranial venous physiology of craniosynostosis. METHODS The authors performed a prospective cohort study of craniosynostosis patients (n = 34) referred to a single national (tertiary) craniofacial unit...
April 6, 2018: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29618081/origin-of-syrinx-fluid-in-syringomyelia-a-physiological-study
#19
John D Heiss, Katie Jarvis, René K Smith, Eric Eskioglu, Mortimer Gierthmuehlen, Nicholas J Patronas, John A Butman, Davis P Argersinger, Russell R Lonser, Edward H Oldfield
BACKGROUND: The origin of syrinx fluid is controversial. OBJECTIVE: To elucidate the mechanisms of syringomyelia associated with cerebrospinal fluid pathway obstruction and with intramedullary tumors, contrast transport from the spinal subarachnoid space (SAS) to syrinx was evaluated in syringomyelia patients. METHODS: We prospectively studied patients with syringomyelia: 22 with Chiari I malformation and 16 with SAS obstruction-related syringomyelia before and 1 wk after surgery, and 9 with tumor-related syringomyelia before surgery only...
March 30, 2018: Neurosurgery
https://www.readbyqxmd.com/read/29610967/early-analysis-of-operative-management-of-chiari-i-malformation-in-pediatric-cystic-fibrosis-patients
#20
Derek C Samples, Dewey J Thoms, Izabela Tarasiewicz
INTRODUCTION: Chiari I malformation, defined as herniation of the cerebellar tonsils at least 5 mm below the foramen magnum, can result from congenital or acquired pathology. While the mechanism is not well understood, an association between Chiari I and cystic fibrosis has been described in the literature. The lifelong respiratory status management necessitated by cystic fibrosis creates a greater risk of Chiari symptomatology as well as post-operative CSF-related complications in the setting of duraplasty secondary to recurrent transient increases in intracranial pressure...
April 2, 2018: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
keyword
keyword
99947
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"