keyword
MENU ▼
Read by QxMD icon Read
search

Homonymous hemianopia

keyword
https://www.readbyqxmd.com/read/27909274/-three-mitral-valve-operations-in-a-patient-with-trousseau-syndrome-and-nonbacterial-thrombotic-endocarditis-caused-by-ovarian-cancer
#1
Masahito Saito, Naoki Asano, Kazunori Ota, Kazuho Niimi, Koyu Tanaka, Shigeyoshi Gon, Hiroshi Takano
A 52-year-old woman was admitted to our hospital for acute right hemi-paresis, left homonymous hemianopia, and fever. Magnetic resonance imaging of the brain showed multiple cerebral infarctions and transesophageal echocardiography (TEE) revealed a vegetation on the posterior leaflet of her mitral valve. Mitral valve repair was performed under a diagnosis of infective endocarditis (IE). Further multiple cerebral infarctions occurred on the 11th postoperative day, resulting in left hemiplegia and dysarthria...
December 2016: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/27896492/hemianopic-line-bisection-error-in-a-patient-with-alzheimer-s-disease
#2
Heeyoung Kang, Soo-Kyoung Kim, Ki-Jong Park, Nack-Cheon Choi, Oh-Young Kwon, Byeong Hoon Lim
Visual symptoms are frequently observed in posterior cortical atrophy compared to typical amnestic Alzheimer's disease (AD). We report the case of a patient with amnestic AD with long-lasting homonymous hemianopia. A 62-year-old woman, who was diagnosed in amnestic AD, complained of visual disturbance. She had left homonymous hemianopia in the perimetry test and left tactile extinction. Regardless of posture, retinotopically leftward error was observed on 21 cm line bisection test. Brain single photon emission computerized tomography (SPECT) showed bilateral temporoparietal hypoperfusion, which was more severe to the right than left side...
November 28, 2016: Neurological Sciences
https://www.readbyqxmd.com/read/27886894/homonymous-hemianopia-and-vision-restoration-therapy
#3
REVIEW
Alexander Frolov, Jeanne Feuerstein, Prem S Subramanian
Homonymous hemianopia from stroke causes visual disability. Although some patients experience spontaneous improvement, others have limited to no change and may be left with a severe disability. Current rehabilitation strategies are compensatory and cannot restore function. Animal studies suggest that central nervous system plasticity could allow for redirection of lost visual function into undamaged areas of cortex. A commercial therapy system was developed, from which claims of visual field expansion were disputed by independent researchers...
February 2017: Neurologic Clinics
https://www.readbyqxmd.com/read/27773906/lateral-geniculate-body-presenting-only-hemorrhage-homonymous-hemianopia-a-case-report
#4
Haruki Tokida, Yuhei Kanaya, Yutaka Shimoe, Shigeru Yamori, Koichi Tagawa, Masaru Kuriyama
We report a case of a 55-year-old man who developed acute-onset narrowing of his visual field. He showed right homonymous hemianopsia without any other neurological symptoms and signs. Brain CT and MRI showed localized hemorrhage (about 1.6 ml) in the left lateral geniculate body (LGB). A cerebral angiography showed no vascular anomalies of cerebral vessels, and the left anterior choroidal artery and left lateral posterior choroidal artery could be visualized well. He had hypertension, polycythemia and dyslipidemia and was a habitual smoker and an alcoholic...
November 29, 2016: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/27773358/avoiding-unseen-obstacles-subcortical-vision-is-not-sufficient-to-maintain-normal-obstacle-avoidance-behaviour-during-reaching
#5
Alasdair I Ross, Thomas Schenk, Jutta Billino, Mary J Macleod, Constanze Hesse
Previous research found that a patient with cortical blindness (homonymous hemianopia) was able to successfully avoid an obstacle placed in his blind field, despite reporting no conscious awareness of it [Striemer, C. L., Chapman, C. S., & Goodale, M. A., 2009, PNAS, 106(37), 15996-16001]. This finding led to the suggestion that dorsal stream areas, that are assumed to mediate obstacle avoidance behaviour, may obtain their visual input primarily from subcortical pathways. Hence, it was suggested that normal obstacle avoidance behaviour can proceed without input from the primary visual cortex...
October 3, 2016: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/27730295/-partial-homonymous-hemianopia-of-traumatic-origin-after-riding-a-high-speed-amusement-ride
#6
B Hohberger, R Trollmann, O Rompel, P Gölitz, G-C Gusek-Schneider
Amusement park injuries have become more common in recent years. Especially neurological symptoms dominate clinical findings. In this article, the case of a 15-year-old child with homonymous hemianopia due to an atypical intracranial bleeding with subdural hematoma after a giant swing ride is described for the first time.
October 11, 2016: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/27570398/unusual-case-of-recurrent-smart-stroke-like-migraine-attacks-after-radiation-therapy-syndrome
#7
Ramnath Santosh Ramanathan, Gayathri Sreedher, Konark Malhotra, Zain Guduru, Deeksha Agarwal, Mary Flaherty, Timothy Leichliter, Sandeep Rana
Stroke-like migraine attacks after radiation therapy (SMART) syndrome is a rare delayed complication of cerebral radiation therapy. A 53-year-old female initially presented with headache, confusion and left homonymous hemianopia. Her medical history was notable for cerebellar hemangioblastoma, which was treated with radiation in 1987. Her initial brain MRI (magnetic resonance imaging) revealed cortical enhancement in the right temporo-parieto-occipital region. She improved spontaneously in 2 weeks and follow-up scan at 4 weeks revealed no residual enhancement or encephalomalacia...
July 2016: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/27552350/restoration-of-vision-after-brain-injury-using-magnet-glasses
#8
Kevin E Houston, Eleftherios I Pachalis, Danielle C Angueira, P Matthew Bronstad, Anna M Barrett, Mary Alexis Iaccarino
Visual impairments are common after traumatic brain injury (TBI) and negatively affect quality of life. We describe a 39-year-old woman with a severe TBI who was evaluated by the inpatient optometry and vision rehabilitation service with findings of complete right homonymous hemianopia and right cranial nerve III palsy with 30-degree right exotropia (eye turn out) and complete right ptosis (eyelid will not open). The 30-degree exotropia advantageously generated 30 degrees of right visual field expansion when the right ptosis was treated with a magnetic levator prosthesis, which restores eyelid opening...
August 22, 2016: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/27445717/behavioral-consequences-and-cortical-reorganization-in-homonymous-hemianopia
#9
REVIEW
Sylvie Chokron, Céline Perez, Carole Peyrin
The most common visual defect to follow a lesion of the retrochiasmal pathways is homonymous hemianopia (HH), whereby, in each eye, patients are blind to the contralesional visual field. From a behavioral perspective, in addition to exhibiting a severe deficit in their contralesional visual field, hemianopic patients can also present implicit residual capacities, now usually referred to collectively as blindsight. It was recently demonstrated that HH patients can also suffer from a subtle deficit in their ipsilesional visual field, called sightblindness (the reverse case of blindsight)...
2016: Frontiers in Systems Neuroscience
https://www.readbyqxmd.com/read/27429357/anoxic-brain-injury-secondary-to-metabolic-encephalopathy
#10
Lyndsey M Ferris, Carla Engelke
PURPOSE: To discuss the clinical case of a patient suffering visual dysfunction secondary to a metabolic brain injury, the patient's visual rehabilitative treatment, and outcomes. CASE REPORT: A 24-year-old Caucasian male presented to the Southern Arizona Veteran's Affairs Healthcare System's Traumatic Brain Injury (TBI) eye clinic for evaluation and treatment of visual dysfunction secondary to an anoxic brain injury suffered 4 months before. Symptoms included persistent right homonymous hemianopia, oculomotor dysfunction, and a visual information processing deficit...
October 2016: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/27358769/occipital-seizures-and-persistent-homonymous-hemianopia-with-t2-hypointensity-on-mri-in-nonketotic-hyperglycemia
#11
Zebun Nissa, Shaista A Siddiqi, Sharifa A M Abdool
INTRODUCTION: Nonketotic hyperglycemia (NKH) is known to cause focal motor or secondarily generalized seizures. Occipital seizures in NKH are seldom reported, especially with visual hallucinations and persistent homonymous hemianopia (HH) with characteristic radiological and electroencephalographic (EEG) findings. SUMMARY: Our patient was a middle-aged man who presented with a new onset, single episode of generalized tonic-clonic seizure and NKH. He complained of seeing intermittent colorful stripes in his right visual field...
2016: Epilepsy & Behavior Case Reports
https://www.readbyqxmd.com/read/27340803/reversible-edema-like-changes-along-the-optic-tract-following-pipeline-assisted-coiling-of-a-large-anterior-communicating-artery-aneurysm
#12
Biagia La Pira, Waleed Brinjikji, Christopher Hunt, John J Chen, Giuseppe Lanzino
Aneurysmal volume expansion after endovascular treatment is caused by intra-aneurysmal thrombosis in the early postembolization period. Although postembolization mass effect on cranial nerves and other adjacent structures has been previously reported, we are unaware of reports involving the anterior visual pathway. A 66-year-old woman with a 2-week history of blurred vision without headache was found to have a large, unruptured anterior communicating artery aneurysm. One month after endovascular treatment of the aneurysm with coiling and flow diversion, the patient developed decreased vision in her right eye and a left homonymous hemianopia...
June 23, 2016: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/27281492/unexplained-homonymous-hemianopia
#13
Saranya C Balasubramaniam, John J Chen
No abstract text is available yet for this article.
August 1, 2016: JAMA Ophthalmology
https://www.readbyqxmd.com/read/27274865/retinal-ganglion-cell-atrophy-in-homonymous-hemianopia-due-to-acquired-occipital-lesions-observed-using-cirrus-high-definition-oct
#14
Tsutomu Yamashita, Atsushi Miki, Katsutoshi Goto, Syunsuke Araki, Go Takizawa, Yoshiaki Ieki, Junichi Kiryu, Akio Tabuchi, Yasuyuki Iguchi, Kazumi Kimura, Yoshiki Yagita
Purpose. To report a reduction in macular ganglion cell layer and inner plexiform layer (GCL+IPL) thickness and circumpapillary retinal nerve fiber layer (cpRNFL) thickness using spectral-domain optical coherence tomography in patients with homonymous hemianopia due to posterior cerebral artery (PCA) stroke. Methods. Seven patients with PCA stroke were examined using Cirrus high-definition-OCT. The GCL+IPL thicknesses were divided into the hemianopic and unaffected sides. The relationship between the time after stroke and the GCL+IPL thicknesses in the hemianopic side was evaluated...
2016: Journal of Ophthalmology
https://www.readbyqxmd.com/read/27238857/visual-outcome-in-sturge-weber-syndrome-a-systematic-review-and-dutch-multicentre-cohort
#15
Yvonne Koenraads, Michelle B van Egmond-Ebbeling, Joke H de Boer, Saskia M Imhof, Kees P J Braun, Giorgio L Porro
Visual functions in Sturge-Weber syndrome (SWS) may be impaired by glaucoma, diffuse choroidal haemangioma (DCH) or leptomeningeal angioma. The aim of this study was to gain better insight in the visual deficits of SWS patients. A systematic literature search using PubMed and Embase medical databases was performed to identify articles describing visual acuity (VA) and/or visual field (VF) findings in SWS patients. In addition, a Dutch multicentre cohort with 33 SWS patients was collected and the combined results of VA and VF findings are presented...
May 30, 2016: Acta Ophthalmologica
https://www.readbyqxmd.com/read/27111336/stroke-mimics-in-a-stroke-care-pathway-based-on-mri-screening
#16
Véronique Quenardelle, Valérie Lauer-Ober, Ielyzaveta Zinchenko, Marc Bataillard, Olivier Rouyer, Rémy Beaujeux, Raoul Pop, Nicolas Meyer, Hervé Delplancq, Stéphane Kremer, Christian Marescaux, Bernard Gény, Valérie Wolff
BACKGROUND: Since the use of tissue plasminogen activator for acute ischemic stroke (IS), stroke care pathways have been developed for patients with suspicion of acute stroke. The aim of this prospective observational study was to analyze the stroke mimic (SM) characteristics in patients who were part of our stroke care pathway. METHODS: All consecutive patients admitted in the code stroke within a 1-year period were prospectively enrolled in this study. Patients with a sudden onset of neurological focal deficit in a time window less than 4H30 as indicated for intravenous thrombolysis, had been accepted in the pathway by a neurologist who was directly contactable by the prehospital emergency medical service 24 h per day...
2016: Cerebrovascular Diseases
https://www.readbyqxmd.com/read/27098603/rare-onset-symptoms-in-multiple-sclerosis
#17
Ahmet Evlice, Turgay Demir, Cansel Kaleağası, Figen Özcan, Meltem Demirkıran
INTRODUCTION: Multiple sclerosis (MS) may present with unusual manifestations such as pain syndromes, movement disorders, rare cranial nerve involvement, cognitive or psychiatric symptoms, leading to diagnostic dilemma. The purpose of this study is to determine the types of rare onset symptoms in patients with MS in order to provide better clues for early diagnosis. METHOD: We, retrospectively, analysed data of 680 MS patients who were diagnosed or followed-up in our demyelinating diseases unit...
June 2016: Acta Clinica Belgica
https://www.readbyqxmd.com/read/27039943/improvement-of-glucose-metabolism-in-the-visual-cortex-accompanies-visual-field-recovery-in-a-patient-with-hemianopia
#18
Yukihisa Suzuki, Motohiro Kiyosawa, Keiichi Oda, Kiich Ishiwata, Kenji Ishii
Damage to the visual cortex or the geniculostriatal pathways could cause homonymous visual field (VF) defects at the contralateral side of the lesion. In clinical practice, it is known that the VF defects are gradually recovered over months on the cases. We report a case with recovered homonymous hemianopia following an infarction in the visual cortex by positron emission tomography (PET) with (18)F-fluorodeoxyglucose (FDG) and (11)C-flumazenil (FMZ). A 58-year-old man experienced defect of left VF, and magnetic resonance imaging (MRI) revealed a localized infarction in the right occipital lobe...
2016: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/26997345/validation-of-a-reading-assessment-for-persons-with-homonymous-hemianopia-or-quadrantanopia
#19
Sarah E Blaylock, Mary Warren, Hon K Yuen, Dawn K DeCarlo
OBJECTIVE: To preliminarily validate the Visual Skills for Reading Test (VSRT) for assessing reading performance in persons with homonymous hemianopia (HH) or quadrantanopia. DESIGN: Retrospective chart review. SETTING: University-based outpatient low vision rehabilitation center. PARTICIPANTS: Persons (N=38) with HH or quadrantanopia who completed the VSRT. INTERVENTIONS: Validation procedures included testing for equivalence of the 3 test versions, estimation of internal consistency reliability, and known-group comparison using VSRT results from previous studies of adults with normal vision and central field loss...
September 2016: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/26889154/right-homonymous-hemianopia-a-clinical-case-report-of-schizencephaly
#20
Arminda Neves, Fausto Carvalheira, Joana Campos, Pedro Alfaiate, António Campos, João Paulo, Castro Sousa
PURPOSE: To report a case of a 56-year-old male with right homonymous hemianopia. METHODS: Retrospective descriptive study of a case report based on information from clinical records, patient observation and analysis of complementary diagnostic tests. RESULTS: An asymptomatic 56-year-old male presented to our hospital for a routine ophthalmic examination. The best-corrected visual acuity was 20/20 in the right eye (RE) and in the left eye (LE)...
January 2016: Case Reports in Ophthalmology
keyword
keyword
23295
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"