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Chiari I

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https://www.readbyqxmd.com/read/29345006/embryology-of-the-craniocervical-junction-and-posterior-cranial-fossa-part-i-development-of-the-upper-vertebrae-and-skull
#1
Mohammadali M Shoja, Rebecca Ramdhan, Chad J Jensen, Joshua Chern, W Jerry Oakes, R Shane Tubbs
Although the embryology of the posterior cranial fossa can have life altering effects on a patient, a comprehensive review on this topic is difficult to find in the peer-reviewed medical literature. Therefore, this review paper, using standard search engines, seemed timely. The embryology of the posterior cranial fossa is complex and relies on a unique timing of various neurovascular and bony elements. Derailment of these developmental processes can lead to a wide range of malformations such as the Chiari malformations...
January 18, 2018: Clinical Anatomy
https://www.readbyqxmd.com/read/29344999/the-newer-classifications-of-the-chiari-malformations-with-clarifications-an-anatomical-review
#2
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...
January 18, 2018: Clinical Anatomy
https://www.readbyqxmd.com/read/29325958/novel-assessment-of-cerebrospinal-fluid-dynamics-by-time-spatial-labeling-inversion-pulse-magnetic-resonance-imaging-in-patients-with-chiari-malformation-type-i
#3
Tatsuya Ohtonari, Nobuharu Nishihara, Shinzo Ota, Akio Tanaka
OBJECTIVE: We investigated CSF dynamics at CCJ using Time-SLIP MRI to demonstrate the significance of ventral and dorsal combined CSF dynamics in assessing CSF flow disturbance in patients with CM-I. METHODS: Fifteen examinations were performed in nine cases of CM-I (three females patients; mean age, 24.7 years; age range, 11-46 years) before or after craniocervical decompression. The longitudinal maximum movement of the caudal edge of tagged mid-sagittal CSF at CCJ was measured as a LOM, and total on the ventral and dorsal sides was defined as total LOM...
January 8, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29316565/transjugular-intrahepatic-portosystemic-shunt-in-patients-with-portal-hypertension-patency-depends-on-coverage-and-interventionalist-s-experience
#4
Matthias Buechter, Paul Manka, Guido Gerken, Ali Canbay, Sandra Blomeyer, Axel Wetter, Jens Altenbernd, Alisan Kahraman, Jens M Theysohn
BACKGROUND AND AIMS: Transjugular intrahepatic portosystemic shunt (TIPS) is the treatment of choice in decompensated portal hypertension. TIPS revision due to thrombosis or stenosis increases morbidity and mortality. Our aim was to investigate patient- and procedure-associated risk factors for TIPS-revision. PATIENTS AND METHODS: We retrospectively evaluated 189 patients who underwent the TIPS procedure. Only patients who required TIPS revision within 1 year (Group I, 34 patients) and patients who did not require re-intervention within the first year (Group II [control group], 54 patients) were included...
January 9, 2018: Digestive Diseases
https://www.readbyqxmd.com/read/29303466/delayed-neurological-deterioration-following-atlantoaxial-facet-joint-distraction-and-fixation-in-a-patient-with-chiari-malformation-type-i
#5
Tatsushi Inoue, Natsuki Hattori, Tsukasa Ganaha, Tadashi Kumai, Shinichiro Tateyama, Yuichi Hirose
Chiari malformation type I (CM-I) is typically treated with foramen magnum decompression. However, a recent study proposed a new technique for patients with CM-I, wherein only short atlantoaxial joint fusion and distraction is applied. Posterior fusion with or without atlantoaxial distraction is a potential option for patients with CM-I associated with basilar invagination or complex anomalous bony craniovertebral junction pathology, since this procedure allows clinicians to avoid using the technically demanding transoral approach in which some or all of the odontoid tip is invisible...
January 5, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29298440/effect-of-posterior-fossa-decompression-for-chiari-malformation-i-on-scoliosis
#6
Silky Chotai, Jade Basem, Stephen Gannon, Michael Dewan, Chevis N Shannon, John C Wellons, Christopher M Bonfield
BACKGROUND/AIMS: Scoliosis is common in patients with Chiari malformation-I (CM-I). This study examined the change in scoliosis severity after posterior fossa decompression (PFD) for CM-I. METHODS: We conducted a retrospective review at a single tertiary center for children undergoing PFD with untreated scoliosis, and identified 17 patients with complete follow-up data and imaging. RESULTS: Overall, scoliosis improved in 7 (41.2%) patients, worsened in 9 (52...
January 4, 2018: Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29296024/beh%C3%A3-et-syndrome-a-contemporary-view
#7
REVIEW
Hasan Yazici, Emire Seyahi, Gulen Hatemi, Yusuf Yazici
The presence of symptom clusters, regional differences in disease expression and similarities with, for example, Crohn's disease suggest multiple pathological pathways are involved in Behçet syndrome. These features also make formulating disease criteria difficult. Genetic studies have identified HLA-B*51 to be the important genetic risk factor. However, the low prevalence of HLA-B*51 in many patients with bone fide disease, especially in non-endemic regions, suggests other factors must also be operative in Behçet syndrome...
January 3, 2018: Nature Reviews. Rheumatology
https://www.readbyqxmd.com/read/29288861/resolution-of-tachyarrhythmia-following-posterior-fossa-decompression-surgery-for-chiari-malformation-type-i-a-case-report
#8
Christopher Elia, James Brazdzionis, Vartan Tashjian
INTRODUCTION: Chiari malformation type I (CM) commonly present with symptoms such as tussive headaches, paresthesias and in severe cases, corticobulbar dysfunction.3 However, patients may present with atypical symptoms lending to the complexity in this patient population. We present a case of a CM patient presenting with atypical cardiac symptoms and arrhythmias, all of which resolved after surgical decompression. CASE DESCRIPTION: A 31-year-old female presented with atypical chest pain, palpitations, tachycardia, headaches, and dizziness for 2 years...
December 27, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29285106/pediatric-chiari-malformation-type-i-long-term-outcomes-following-small-bone-window-posterior-fossa-decompression-with-autologous-fascia-duraplasty
#9
Hai Liu, Chenlong Yang, Jun Yang, Yulun Xu
Chiari malformation type I (CM-I) is a common hindbrain disorder that is associated with deformity and elongation of the cerebellar tonsils. Although CM-I occurs in both pediatric and adult patients, its prevalence, clinical features and management in the pediatric population are not well defined. The current study evaluated a consecutive case series of 92 children (38 females and 54 males) who were diagnosed with congenital CM-I. All patients underwent small-bone-window posterior fossa decompression with autologous-fascia duraplasty...
December 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29201291/long-term-results-of-modified-salter-innominate-osteotomy-for-legg-calv%C3%A3-perthes-disease
#10
Kyung Soon Park, Kyu Jin Cho, Hong Yeol Yang, Kamolhuja Eshnazarovich Eshnazarov, Taek Rim Yoon
Background: In a previous study, we reported clinical and radiographic results of our modified Salter innominate osteotomy technique in 16 hips affected by Legg-Calvé-Perthes disease (LCPD) with an average follow-up of 31.8 months. In this study, we present the long-term results of the osteotomy in LCPD patients followed until physeal closure. Methods: Thirty hips of 29 patients were followed until skeletal maturation after modified Salter innominate osteotomy...
December 2017: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/29198688/hanging-hepato-atrial-anastomosis-in-deceased-donor-liver-transplantation-for-budd-chiari-syndrome-with-extensive-vena-cava-obliteration-a-case-report
#11
S Y Hong, B-W Kim, H-J Wang, I-G Kim, X-G Hu
INTRODUCTION: Although outcomes of liver transplantation (LT) have improved as the result of progress in surgical procedures, a failure to restore sufficient graft outflow may yield fatal consequences including graft dysfunction and even graft loss to date. In particular, patients with pre-existing obliterated venous drainage, such as those with Budd-Chiari syndrome (BCS), are at high risk of having venous complications followed by conventional LT. In selected cases, the transplant surgeons are compelled to modify the surgical procedures of LT from the conventional procedure...
December 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/29186280/facehbi-a-prospective-study-of-risk-factors-biomarkers-and-cognition-in-a-cohort-of-individuals-with-subjective-cognitive-decline-study-rationale-and-research-protocols
#12
O Rodriguez-Gomez, A Sanabria, A Perez-Cordon, D Sanchez-Ruiz, C Abdelnour, S Valero, I Hernandez, M Rosende-Roca, A Mauleon, L Vargas, M Alegret, A Espinosa, G Ortega, M Guitart, A Gailhajanet, O Sotolongo-Grau, S Moreno-Grau, S Ruiz, M Tarragona, J Serra, E Martin, E Peleja, F Lomeña, F Campos, A Vivas, M Gomez-Chiari, M A Tejero, J Giménez, P Pesini, M Sarasa, G Martinez, A Ruiz, L Tarraga, M Boada
BACKGROUND: Long-term longitudinal studies with multimodal biomarkers are needed to delve into the knowledge of preclinical AD. Subjective cognitive decline has been proposed as a risk factor for the development of cognitive impairment. Thus, including individuals with SCD in observational studies may be a cost-effective strategy to increase the prevalence of preclinical AD in the sample. OBJECTIVES: To describe the rationale, research protocols and baseline characteristics of participants in the Fundació ACE Healthy Brain Initiative (FACEHBI)...
2017: Journal of Prevention of Alzheimer's Disease
https://www.readbyqxmd.com/read/29176759/distinct-trypanosoma-cruzi-isolates-induce-activation-and-apoptosis-of-human-neutrophils
#13
Luísa M D Magalhães, Agostinho Viana, Augusto C de Jesus, Egler Chiari, Lúcia Galvão, Juliana A Gomes, Kenneth J Gollob, Walderez O Dutra
Neutrophils are critical players in the first line of defense against pathogens and in the activation of subsequent cellular responses. We aimed to determine the effects of the interaction of Trypanosoma cruzi with human neutrophils, using isolates of the two major discrete type units (DTUs) associated with Chagas' disease in Latin America (clone Col1.7G2 and Y strain, DTU I and II, respectively). Thus, we used CFSE-stained trypomastigotes to measure neutrophil-T. cruzi interaction, neutrophil activation, cytokine expression and death, after infection with Col1...
2017: PloS One
https://www.readbyqxmd.com/read/29175573/the-cost-effectiveness-of-post-operative-ketamine-in-chiari-decompression
#14
Michael M McDowell, Ahmad Alhourani, Beverly A Pearce-Smith, Anna Mazurkiewicz, Robert M Friedlander
INTRODUCTION: In Chiari I patients, post-operative pain and discomfort frequently slow the transition back to the home setting. OBJECTIVE: We sought to determine the effect of standardized ketamine infusion protocols on hospital length of stay. METHODS: This retrospective cohort study reviewed 100 consecutive adult patients undergoing Chiari I decompression. Fifty-nine patients were placed on a 2-3mg/hr ketamine drip until post-operative day one...
November 22, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29173189/quality-of-life-in-individuals-affected-by-arnold-chiari-malformation-comparison-and-validation-of-a-measurement-instrument
#15
Antonio Martinez-Sabater, Maria Luisa Ballestar-Tarin, Miriam Vazquez-Seoane, Lucia Mari-Avargues, Carlos Saus-Ortega, Maria Del Carmen Casal-Angulo
BACKGROUND: Introduction. Arnold Chiari Malformation (ACM) type I is a pathology whose symptomatology has repercussions for the quality of life of those affected by it. Quality-of-life measurement instruments can allow the severity of the impact of Chiari type I malformation on patients' lives to be monitored. The Chiari Symptom Profile (CSP) is a valid and reliable instrument designed for this purpose. The aim of the study was to adapt the CSP to Spanish and to explore the reliability and validity of this construct in the context of Spanish-speaking patients with ACM...
November 23, 2017: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/29156223/exploring-apoe-genotype-effects-on-ad-risk-and-%C3%AE-amyloid-burden-in-individuals-with-subjective-cognitive-decline-the-facehbi-study-baseline-results
#16
Sonia Moreno-Grau, O Rodríguez-Gomez, A Sanabria, A Perez-Cordon, D Sanchez-Ruiz, C Abdelnour, S Valero, I Hernandez, M Rosende-Roca, A Mauleon, L Vargas, A Lafuente, S Gil, M A Santos-Santos, M Alegret, A Espinosa, G Ortega, M Guitart, A Gailhajanet, I de Rojas, O Sotolongo-Grau, S Ruiz, N Aguilera, J Papasey, E Martin, E Peleja, F Lomeña, F Campos, A Vivas, M Gomez-Chiari, M A Tejero, J Giménez, M Serrano-Ríos, A Orellana, L Tarraga, A Ruiz, M Boada
INTRODUCTION: Subjective cognitive decline (SCD) has been proposed as a potential preclinical stage of Alzheimer's disease (AD). Nevertheless, the genetic and biomarker profiles of SCD individuals remain mostly unexplored. METHODS: We evaluated apolipoprotein E (APOE) Ɛ4's effect in the risk of presenting SCD, using the Fundacio ACE Healthy Brain Initiative (FACEHBI) SCD cohort and Spanish controls, and performed a meta-analysis addressing the same question. We assessed the relationship between APOE dosage and brain amyloid burden in the FACEHBI SCD and Alzheimer's Disease Neuroimaging Initiative cohorts...
November 17, 2017: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
https://www.readbyqxmd.com/read/29138073/comparision-of-results-between-posterior-fossa-decompression-with-and-without-duraplasty-for-the-surgical-treatment-of-chiari-malformation-type-i%C3%AF-a-systematic-review-and-meta-analysis
#17
REVIEW
Weiwei Lin, Guman Duan, Jinjin Xie, Jiashen Shao, Zhaoqi Wang, Baohua Jiao
BACKGROUND: Posterior fossa decompression without (PFD) or with duraplasty (PFDD) for the treatment of type 1 Chiari malformation (CM-I) is controversial. We thus did a systematic review and meta-analysis of studies to assess the effect on clinical and imaging improvement, operative time, complications and recurrence rate between PFD and PFDD in patients with CM-I. METHODS: We systematically searched PubMed, Embase, Cochrane, Web of Knowledge, and ClinicalTrials...
November 11, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29133007/comparison-of-clinical-and-radiographic-outcomes-for-posterior-fossa-decompression-with-and-without-duraplasty-for-treatment-of-pediatric-chiari-i-malformation-a-prospective-study
#18
Enze Jiang, Shifu Sha, XinXin Yuan, WeiGuo Zhu, Jian Jiang, Hongbin Ni, Zhen Liu, Yong Qiu, Zezhang Zhu
No abstract text is available yet for this article.
November 10, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29130121/chiari-i-malformation-surgical-technique-indications-and-limits
#19
Lorenzo Giammattei, F Borsotti, F Parker, M Messerer
BACKGROUND: Chiari malformation type I (CM-I) is a rare disease characterised by herniation of cerebellar tonsils below the foramen magnum with associated anomalies of posterior fossa. We describe here the surgical technique, indications and limits of surgical treatment. METHOD: The authors describe the surgical technique, including: posterior fossa decompression, opening of the foramen of Magendie and duraplasty in case of CM-I. CONCLUSIONS: Posterior fossa decompression plus duraplasty is a safe and effective procedure for patients with CM-I malformation...
November 12, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29125448/erratum-the-addition-of-duraplasty-to-posterior-fossa-decompression-in-the-surgical-treatment-of-pediatric-chiari-malformation-type-i-a-systematic-review-and-meta-analysis-of-surgical-and-performance-outcomes
#20
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