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chiari malformation

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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/29344994/embryology-of-the-craniocervical-junction-and-posterior-cranial-fossa-part-ii-embryogenesis-of-the-hindbrain
#3
Mohammadali M Shoja, Chad J Jensen, Rebecca Ramdhan, Joshua Chern, W Jerry Oakes, R Shane Tubbs
Although pathology of the hindbrain and its derivatives can have life altering effects on a patient, a comprehensive review on its embryology is difficult to find in the peer-reviewed medical literature. Therefore, this review paper, using standard search engines, seemed timely. The embryology of the hindbrain 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/29340812/partial-amniotic-carbon-dioxide-insufflation-paci-during-minimally-invasive-fetoscopic-interventions-on-fetuses-with-spina-bifida-aperta
#4
Miriam Ziemann, Rolf Fimmers, Anastasiia Khaleeva, Rainer Schürg, Markus A Weigand, Thomas Kohl
BACKGROUND: Percutaneous partial amniotic carbon dioxide insufflation (PACI) is one of the most important means for improving visualization during minimally invasive fetoscopic surgery of fetal spina bifida. The purpose of the present study was to analyze maternal and fetal safety aspects of PACI in a recent patient cohort and to present management improvements. METHODS: PACI under general materno-fetal anesthesia was performed during 65 interventions for fetoscopic patch coverage of fetal spina bifida aperta between 21 + 0 and 29 + 1 weeks of gestation...
January 16, 2018: Surgical Endoscopy
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
#5
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/29303466/delayed-neurological-deterioration-following-atlantoaxial-facet-joint-distraction-and-fixation-in-a-patient-with-chiari-malformation-type-i
#6
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/29302380/a-case-of-fatal-pulmonary-hypoplasia-with-congenital-diaphragmatic-hernia-thoracic-myelomeningocele-and-thoracic-dysplasia
#7
Ai Ito, Hideshi Fujinaga, Sachiko Matsui, Kumiko Tago, Yuka Iwasaki, Shuhei Fujino, Junko Nagasawa, Shoichiro Amari, Masao Kaneshige, Yuka Wada, Shigehiro Takahashi, Keiko Tsukamoto, Osamu Miyazaki, Takako Yoshioka, Akira Ishiguro, Yushi Ito
Background  Congenital diaphragmatic hernia (CDH) is fatal in severe cases of pulmonary hypoplasia. We experienced a fatal case of pulmonary hypoplasia due to CDH, thoracic myelomeningocele (MMC), and thoracic dysplasia. This constellation of anomalies has not been previously reported. Case Report  A male infant with a prenatal diagnosis of thoracic MMC with severe hydrocephalus and scoliosis was born at 36 weeks of gestation. CDH was found after birth and the patient died of respiratory failure due to pulmonary hypoplasia and persistent pulmonary hypertension of the newborn at 30 hours of age despite neonatal intensive care...
October 2017: American Journal of Perinatology Reports
https://www.readbyqxmd.com/read/29298440/effect-of-posterior-fossa-decompression-for-chiari-malformation-i-on-scoliosis
#8
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/29288861/resolution-of-tachyarrhythmia-following-posterior-fossa-decompression-surgery-for-chiari-malformation-type-i-a-case-report
#9
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/29285404/cervicothoracic-syringomyelia-caused-by-cervical-spinal-stenosis-case-report-and-literature-review
#10
Mohamed Badri, Ghassen Gader, Kamel Bahri, Ihsen Zammel
Background: Syringomyelia is commonly associated with Chiari malformations, spinal trauma, arachnoiditis, or tumors. However, rarely, cervical canal stenosis is implicated in intramedullary cavitations. Case Discription: Here, we report the case of a 60-year-old male patient who presented with loss of pain and temperature sensation in upper extremities associated with a spastic tetraparesis. On magnetic resonance imaging, the patient was found to have syringomyelia extending from C1 to Th3...
2017: Surgical Neurology International
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
#11
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/29284887/difficult-airway-in-a-case-of-gross-hydrocephalus-for-shunt-surgery
#12
Raghavendra Vagyannavar, Vandna Bharti, Mohammad Hashim
Children with gross hydrocephalus for emergency ventriculoperitoneal (VP) shunt present challenges to anesthesiologist due to increase in circumference of head, associated congenital anomalies. Here is a case report of child with gross hydrocephalus with Type 2 Arnold chiari malformation posted for emergency VP shunt placement possessed a difficult airway.
October 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29210720/massive-macroglossia-after-posterior-cranial-fossa-surgery-a-case-report
#13
Jennifer F Ha, Lisa N Vitale, Marie A Pfarr, Yu Kawai, David A Zopf
A 16-year-old boy with Chiari 1 malformation presented for an elective suboccipital craniectomy and C1 laminectomy. His intraoperative course was uneventful. At the conclusion of the procedure, he met extubation criteria and followed commands. After extubation, he developed progressive upper airway obstruction and became obtunded. He was reintubated via videolaryngoscopy, which showed edema not only to the tongue, but also to the posterior pharynx and blisters over the vocal folds and epiglottis. The patient was transferred to the pediatric intensive care unit intubated and sedated...
November 27, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/29196311/unusual-cause-of-encephalopathy-after-brain-surgery
#14
Zayan Mahmooth, James G Malcolm, Jeremy S Wetzel, Faiz U Ahmad
For patients who have had a recent neurosurgical procedure, a visit to the emergency department for encephalopathy may automatically prompt a neurosurgical consult. We present a case of a patient with a history of Chiari malformation decompressed 6 months prior who presented with a 2-week history of slowly progressive altered mental status, headache and imbalance-symptoms consistent with her initial Chiari symptoms, so neurosurgery was consulted. Imaging showed no acute abnormality, but laboratory results revealed metabolic acidosis with high salicylate levels...
December 1, 2017: BMJ Case Reports
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/29171800/chiari-related-scoliosis-a-single-center-experience-with-long-term-radiographic-follow-up-and-relationship-to-deformity-correction
#16
Vijay M Ravindra, Kaine Onwuzulike, Robert S Heller, Robert Quigley, John Smith, Andrew T Dailey, Douglas L Brockmeyer
OBJECTIVE Previous reports have addressed the short-term response of patients with Chiari-related scoliosis (CRS) to suboccipital decompression and duraplasty (SODD); however, the long-term behavior of the curve has not been well defined. The authors undertook a longitudinal study of a cohort of patients who underwent SODD for CRS to determine whether there are factors related to Chiari malformation (CM) that predict long-term scoliotic curve behavior and need for deformity correction. METHODS The authors retrospectively reviewed cases in which patients underwent SODD for CRS during a 14-year period at a single center...
November 24, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29145838/mri-characteristics-for-phantom-scratching-in-canine-syringomyelia
#17
Zoe R Nalborczyk, Angus K McFadyen, Jelena Jovanovik, Anna Tauro, Colin J Driver, Noel Fitzpatrick, Susan P Knower, Clare Rusbridge
BACKGROUND: A classic sign of canine syringomyelia (SM) is scratching towards one shoulder. Using magnetic resonance imaging (MRI) we investigate the spinal cord lesion relating to this phenomenon which has characteristics similar to fictive scratch secondary to spinal cord transection. Medical records were searched for Cavalier King Charles spaniels with a clinical and MRI diagnosis of symptomatic SM associated with Chiari-like malformation (CM). The cohort was divided into SM with phantom scratching (19 dogs) and SM but no phantom scratching (18 dogs)...
November 16, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29142384/hypercapnic-respiratory-failure-in-case-of-chiari-1-5-malformation-case-report-and-review-of-the-literature
#18
Viralkumar M Vasani, Subhas Kanti Konar, S Satish
Type 2 respiratory failure is defined as hypercapnia associated with hypoxia. Chiari 1.5 is known as herniation of the cerebellar tonsils along with brain stem and fourth ventricle. We report a 35-year-old male who presented with acute hypercapnic respiratory failure (Type 2), without any preexisting neurological or respiratory abnormality. Analysis of blood gases in emergency revealed a pH of 7.12, pCO2 of 132 mmHg, and arterial oxygen tension of 118 mm Hg. He was intubated and ventilated. Magnetic resonance imaging brain revealed herniation of the cerebellar tonsils along with brain stem and fourth ventricle...
October 2017: Indian Journal of Critical Care Medicine
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
#19
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
#20
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
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