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https://www.readbyqxmd.com/read/29684032/pseudo-spontaneous-nystagmus-in-patients-with-geotropic-direction-changing-positional-nystagmus
#1
Seok Min Hong, Sung Kyun Kim, Il-Seok Park, Min Gyeong Shim
BACKGROUND: Pseudo-spontaneous nystagmus has been reported in patients with direction-changing positional nystagmus (DCPN). Recently, the concept of a "light cupula" has been introduced as a pathophysiology that can exhibit persistent geotropic DCPN. Patients with persistent DCPN could have different characteristics of nystagmus. Therefore, we investigated the pseudo-spontaneous nystagmus in patients with transient (canalolithiasis) and persistent (belong to light cupula theory) geotropic DCPN...
2018: PloS One
https://www.readbyqxmd.com/read/29682046/c1-c2-transverse-foramen-decompression-by-anterolateral-approach-as-an-alternative-treatment-in-bow-hunter-s-syndrome
#2
Serdar Çevik, Salim Katar, Hakan Hanımoǧlu
Bow hunter's syndrome (BHS) is characterized with repeating paroxysmal vertigo, nystagmus and ataxia caused by mechanical compression of the vertebral arteries. There is no definite diagnostic and treatment protocol. 26-year-old female patient admitted to the outpatient clinic with complaints of dizziness and seldom falls. Stenosis in the right vertebral artery at the level of C1 and C2 was discovered by the diagnostic modalities. In our patient, we first performed hemilaminectomy by posterior approach. But the symptoms of the patient did not recede, thus we performed decompression with the anterolateral approach by opening the foramens atlas and axis without disrupting the dynamics of the vertebrae and without the need for stabilization...
April 2018: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/29681838/unilateral-vision-loss-after-a-dental-visit
#3
Mohammed H Khattab, Annette Wiegand, Marcus Storch, Hans Hoerauf, Nicolas Feltgen
Intraoral local anesthetics are widely used for performing painless dental treatments; however, in some cases, they may cause ocular complications such as meiosis, diplopia, nystagmus, ophthalmoplegia, ptosis, and amaurosis. Mostly, the symptoms disappear after several hours; rarely, they have a prolonged character. We describe the case of a 38-year-old young man who had reduced vision in the left eye 5 days after having received intraoral local anesthesia. A diagnosis of cilioretinal artery occlusion with optic disc swelling was made...
January 2018: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/29677325/continuous-flash-suppression-manual-action-affects-eye-movements-but-not-the-reported-percept
#4
Peter Veto, Immo Schütz, Wolfgang Einhäuser
Diverse paradigms, including ambiguous stimuli and mental imagery, have suggested a shared representation between motor and perceptual domains. We examined the effects of manual action on ambiguous perception in a continuous flash suppression (CFS) experiment. Specifically, we asked participants to try to perceive a suppressed grating while rotating a manipulandum. In one condition, the grating's motion was fully controlled by the manipulandum movement; in another condition the coupling was weak; and in a third condition, no movement was executed...
March 1, 2018: Journal of Vision
https://www.readbyqxmd.com/read/29670325/retinal-detachment-in-albinism
#5
Ahmad M Mansour, Jay Chhablani, J Fernando Arevalo, Lihteh Wu, Ravi Sharma, Suthasinee Sinawat, Tharikarn Sujirakul, Alexandre Assi, Wandsy M Vélez-Vázquez, Mohamad A Mansour, Ozcan Kayikcioglu, Cem Kucukerdonmez, Ali Kal
Purpose: To report the visual and anatomic outcomes of albino retinal detachment (ARD) repair. Methods: Collaborative retrospective analysis of ARD. Outcome measures were number of surgical interventions, final retinal reattachment, and best corrected visual acuity (BCVA) at last follow-up. Results: Seventeen eyes of 16 patients (12 males; mean age =37.8 years) had the following complications at presentation: macula off (14), total (7) or inferior detachment (5), proliferative vitreoretinopathy (5), detectable break (16), lattice (5), horseshoe tears (9), and giant tear or dialysis (4)...
2018: Clinical Ophthalmology
https://www.readbyqxmd.com/read/29669781/outcome-of-paediatric-cataract-surgery-in-northwest-ethiopia-a-retrospective-case-series
#6
Mulusew Asferaw, Sisay Yoseph Mekonen, Geoffrey Woodruff, Clare E Gilbert, Samson Tesfaye
AIM: To assess visual acuity outcomes, and factors associated with the outcome, of paediatric cataract surgery at the Child Eye Health Tertiary Facility, Gondar, Northwest Ethiopia. METHODS: The medical records of children aged below 16 years who underwent cataract surgery between September 2010 and August 2014 were reviewed for preoperative, surgical and postoperative data. RESULTS: One hundred and seventy-six eyes of 142 children (mean age 7...
April 18, 2018: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29662729/the-clinical-evaluation-of-alcohol-intoxication-is-inaccurate-in-trauma-patients
#7
Ashwini Kumar, Travis Holloway, Stephen M Cohn, Gregory Goodwiler, John R Admire
BACKGROUND: Discharging patients from emergency centers based on the clinical features of intoxication alone may be dangerous, as these may poorly correlate with ethanol measurements. OBJECTIVE: We determined the feasibility of utilizing a hand-held breath alcohol analyzer to aid in the disposition of intoxicated trauma patients by comparing serial breathalyzer (Intoximeter, Alco-Sensor FST, St. Louis, Missouri, USA] data with clinical assessments in determining the readiness of trauma patients for discharge...
February 14, 2018: Curēus
https://www.readbyqxmd.com/read/29661898/author-response-teaching-video-neuroimages-olivary-enlargement-and-pharyngeal-nystagmus
#8
Darío A Yacovino, John B Finlay
No abstract text is available yet for this article.
April 17, 2018: Neurology
https://www.readbyqxmd.com/read/29661897/reader-response-teaching-video-neuroimages-olivary-enlargement-and-pharyngeal-nystagmus
#9
Antonio Mendez-Guerrero, Roberto Lopez-Blanco, David Uriarte-Perez de Urabayen
No abstract text is available yet for this article.
April 17, 2018: Neurology
https://www.readbyqxmd.com/read/29661896/reader-response-teaching-video-neuroimages-olivary-enlargement-and-pharyngeal-nystagmus
#10
Shakya Bhattacharjee
No abstract text is available yet for this article.
April 17, 2018: Neurology
https://www.readbyqxmd.com/read/29661895/editors-note-teaching-video-neuroimages-olivary-enlargement-and-pharyngeal-nystagmus
#11
Megan Alcauskas, Steven Galetta
No abstract text is available yet for this article.
April 17, 2018: Neurology
https://www.readbyqxmd.com/read/29658983/subclinical-vestibular-dysfunction-in-migraineurs-without-vertigo-a-clinical-study
#12
L Bernetti, C Pellegrino, I Corbelli, S Caproni, P Eusebi, M Faralli, G Ricci, P Calabresi, P Sarchielli
OBJECTIVES: This observational study aimed to investigate the presence of potential vestibular system subclinical dysfunction among migraineurs without a history of vertigo and dizziness compared with healthy controls. METHODS: Patients diagnosed with episodic migraine with and without aura were enrolled. All patients and healthy controls underwent vestibular examination using the following conventional tests: sitting position, Pagnini-McClure's, Dix-Hallpike's, head hanging, video head impulse, subjective visual vertical, Romberg, Fukuda, and caloric vestibular stimulation by Fitzgerald-Hallpike's tests...
April 16, 2018: Acta Neurologica Scandinavica
https://www.readbyqxmd.com/read/29656927/pontocerebellar-hypoplasia-type-1-for-the-neuropediatrician-genotype-phenotype-correlations-and-diagnostic-guidelines-based-on-new-cases-and-overview-of-the-literature
#13
I Ivanov, D Atkinson, I Litvinenko, L Angelova, S Andonova, H Mumdjiev, I Pacheva, M Panova, R Yordanova, V Belovejdov, A Petrova, M Bosheva, T Shmilev, A Savov, A Jordanova
Pontocerebellar hypoplasia type 1 (PCH1) is a major cause of non-5q spinal muscular atrophy (SMA). We screened 128 SMN1-negative SMA patients from Bulgaria for a frequent mutation -p.G31A in EXOSC3, and performed a literature review of all genetically verified PCH1 cases. Homozygous p.G31A/EXOSC3 mutation was identified in 14 Roma patients, representing three fourths of all our SMN1-negative Roma SMA cases. The phenotype of the p.G31A/EXOSC3 homozygotes was compared to the clinical presentation of all reported to date genetically verified PCH1 cases...
April 3, 2018: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/29644157/persistent-bradycardia-with-the-long-term-use-of-phenytoin-and-oxycodone-first-case-report
#14
Intekhab Askari Syed, Aaron R Kuzel, Muhammad Uzair Lodhi, Waliul Chowdhury, Umar Rahim, Mustafa Rahim
Phenytoin is a medication that is used primarily in the treatment of epilepsy as well as generalized tonic-clonic seizures and status epilepticus. Phenytoin is also considered a class IB antiarrhythmic medication by shortening the duration of the action potential and increasing myocardial conduction. The neurologic adverse effects of phenytoin are well-documented and include altered mental status, ataxia, and nystagmus. Some adverse cardiac manifestations have also been reported, including arrhythmias, hypotension, and respiratory arrest...
February 8, 2018: Curēus
https://www.readbyqxmd.com/read/29628597/anesthetic-management-in-pediatric-patient-for-percutaneous-endoscopic-gastrostomy-with-mitochondrial-myopathy-leigh-syndrome
#15
Ebru Tarikçi Kiliç, Nelgin Gerenli, Mehmet Salim Akdemir, Necmi Onur Tastan, Egemen Atag
Leigh syndrome (LS) is a rare disease mainly affecting the central nervous system due to the abnormalities of mitochondrial energy generation and seen in early childhood with progressive loss of movement, mental abilities, seizures, nystagmus, ophthalmoparesis, optic atrophy, ataxia, dystonia, or respiratory failure. Anesthesia and surgery exacerbate the risks of aspiration, wheezing, and breathing difficulties. Tracheal irritability can be stimulated with the efforts of intubation. We report the anesthetic management of a rare case of an 11-year-old boy with a severe form of LS for percutaneous endoscopic gastrostomy insertion...
January 2018: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29623865/-stroke-mimicking-acute-peripheral-vertigo-how-to-avoid-misdiagnosis-importance-of-alarm-symptoms-and-assessment-of-eye-movements
#16
R B van Leeuwen, E van Wensen, B R Schudel
Identifying the occurrence of stroke in patients with isolated vertigo is difficult for general practitioners (GPs) as well as for physicians working in the Emergency Department. Three patients with acute vestibular syndrome are presented in this clinical lesson. The importance of an adequate neuro-otological examination is emphasised. However, many GPs lack knowledge of the nystagmus and the head impulse test. Alternative strategies for GPs are discussed.
2018: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/29622715/chiari-malformation-and-tuberculous-meningitis-aetiology-and-management
#17
Jose Danilo Bengzon Diestro, Jesi Ellen Cueto Bautista, Abdelsimar T Omar Ii, James Garcia Mercado, Philip Asuncion Ramiro
This is the first reported case of a Chiari 1 malformation in association with tuberculous (TB) meningitis. We present a case of a 23-year-old woman with a 2-week history nocturnal fever, vertigo, headache and projectile vomiting. She had nystagmus, scanning speech, bilateral papilloedema and ataxia. Cranial imaging showed a 10 mm tonsillar herniation. Posterior fossa decompression was done. Because the patient's gamut of symptoms was highly suspicious for a central nervous system infection, a lumbar tap was done which revealed TB meningitis...
April 5, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29619238/pelizaeus-merzbacher-disease-can-be-a-differential-diagnosis-in-males-presenting-with-severe-neonatal-respiratory-distress-and-hypotonia
#18
Ayako Ueda, Hiroko Shimbo, Yukari Yada, Yasunori Koike, Takanori Yamagata, Hitoshi Osaka
Pelizaeus-Merzbacher disease (PMD; MIM #312080) is a rare X-linked recessive disorder. A male neonate presented with severe respiratory distress that required tracheostomy. After the appearance of nystagmus, PMD was suspected as a diagnosis for the patient, and a missense mutation, p.Phe51Val, was identified in PLP1 , the gene responsible for PMD. PMD can be a differential diagnosis in a male neonate presenting severe respiratory distress.
2018: Human Genome Variation
https://www.readbyqxmd.com/read/29618326/a-novel-homozygous-mutation-in-polr3a-gene-causing-4h-syndrome-a-case-report
#19
Vishal V Tewari, Ritu Mehta, C M Sreedhar, Kunal Tewari, Akbar Mohammad, Neerja Gupta, Sheffali Gulati, Madhulika Kabra
BACKGROUND: 4H syndrome is a congenital hypomyelinating leukodystrophy characterized by hypodontia, hypomyelination and hypogonadotropic hypogonadism belonging to the Pol III-related leukodystrophies which arise due to mutations in the POLR3A or POLR3B gene. The clinical presentation is of neurodevelopmental delay or regression with ataxia, dystonia, nystagmus, delayed deciduous dentition and abnormal order of eruption of teeth. MRI brain shows a characteristic hypomyelination pattern...
April 4, 2018: BMC Pediatrics
https://www.readbyqxmd.com/read/29610862/reliability-and-validity-of-gaze-dependent-functional-vision-space-a-novel-metric-quantifying-visual-function-in-infantile-nystagmus-syndrome
#20
Tawna L Roberts, Kristi N Kester, Richard W Hertle
Purpose: This study presents test-retest reliability of optotype visual acuity (OVA) across 60° of horizontal gaze position in patients with infantile nystagmus syndrome (INS). Also, the validity of the metric gaze-dependent functional vision space (GDFVS) is shown in patients with INS. Methods: In experiment 1, OVA was measured twice in seven horizontal gaze positions from 30° left to right in 10° steps in 20 subjects with INS and 14 without INS. Test-retest reliability was assessed using intraclass correlation coefficient (ICC) in each gaze...
April 1, 2018: Investigative Ophthalmology & Visual Science
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