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Ocular ultrasound

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https://www.readbyqxmd.com/read/29774966/test-characteristics-of-point-of-care-ultrasound-for-the-diagnosis-of-retinal-detachment-in-the-emergency-department
#1
Daniel J Kim, Mario Francispragasam, Gavin Docherty, Byron Silver, Ross Prager, Donna Lee, David Maberley
Previous studies of point of care ultrasound (POCUS) have reported high sensitivities and specificities for retinal detachment (RD). Our primary objective was to assess the test characteristics of POCUS performed by a large heterogeneous group of emergency physicians (EPs) for the diagnosis of RD. METHODS: This was a prospective diagnostic test assessment of POCUS performed by EPs with varying ultrasound experience on a convenience sample of emergency department (ED) patients presenting with flashes or floaters in one or both eyes...
May 18, 2018: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/29721842/pigment-dispersion-syndrome-and-pigmentary-glaucoma-a-review-and-update
#2
Gianluca Scuderi, Maria Teresa Contestabile, Luca Scuderi, Aloisa Librando, Vito Fenicia, Siavash Rahimi
INTRODUCTION: Potential factors influencing stereopsis were investigated in patients with both refractive accommodative esotropia (RAE) and amblyopia. Pigment dispersion syndrome (PDS) is a condition where anomalous iridozonular contact leads to pigment dispersion throughout the anterior segment and the released pigment is abnormally deposited on various ocular structures. CLINICAL PRESENTATION: The clinical presentation of PDS is defined by the presence of pigmented cells on the corneal endothelium, an increase of pigmentation of the trabecular meshwork, and mid-periphery transillumination defects of the iris...
May 2, 2018: International Ophthalmology
https://www.readbyqxmd.com/read/29720579/congenital-esophageal-atresia-and-microtia-in-a-newborn-secondary-to-mycophenolate-mofetil-exposure-during-pregnancy-a-case-report-and-review-of-the-literature
#3
Musaed Mohammed Alsebayel, Faisal Abdulrahman Abaalkhail, Faisal Mohammed Alsebayel, Dema A Alissa, Ahmed Hamdan Al-Jedai, Hussien Elsiesy
BACKGROUND Mycophenolate mofetil (MMF) is one of the most commonly prescribed drugs to prevent organ transplant rejection in combination with calcineurin inhibitors and steroids. It has a different toxicity profile than tacrolimus and cyclosporine.  Gastrointestinal tract disturbances are the most common adverse effects. The use of MMF in pregnant women, however, holds great risk of miscarriage and fetal development defects such as external ear malformation, ocular anomalies, cleft lip and palate, and abnormality of distal limbs, heart, esophagus, and kidneys...
May 3, 2018: American Journal of Case Reports
https://www.readbyqxmd.com/read/29705173/ultrasonographic-prenatal-imaging-of-fetal-ocular-and-orbital-abnormalities
#4
REVIEW
Courtney L Ondeck, Dolores Pretorius, Jill McCaulley, Michael Kinori, Theresa Maloney Rdms, Andrew Hull, Shira L Robbins
Technological progress in medicine has provided earlier diagnosis, even in the prenatal period. We address ultrasonographic imaging of the prenatal eye and orbit. During development of these structures, multiple pathologies and diseases can arise. Orbital anomalies can be detected prenatally using ultrasound or MRI. Some of these include congenital cataracts, hypertelorism, hypotelorism, dacryocystocele, microphthalmia, anophthalmia, orbital tumors/masses, and septo-optic dysplasia. We describe characteristic ultrasound findings of these diseases...
April 26, 2018: Survey of Ophthalmology
https://www.readbyqxmd.com/read/29702077/phosphosulindac-is-efficacious-in-an-improved-concanavalin-a-based-rabbit-model-of-chronic-dry-eye-disease
#5
Robert A Honkanen, Liqun Huang, Gang Xie, Basil Rigas
Dry eye disease (DED), an inflammatory disease of the ocular surface, affects 15% of humans worldwide. No satisfactory treatment exists for DED partly because of the lack of informative animal models of this disease. We evaluated the anti-inflammatory phosphosulindac (PS) for the treatment of DED using a new rabbit model of chronic DED. In this model, based on the concanavalin A (Con A) acute DED model, we injected all lacrimal glands with Con A 3 times weekly under ultrasound guidance, which prolonged DED to >3 weeks, and used concurrently 4 parameters of efficacy: tear break-up time (TBUT), tear osmolarity, Schirmer test, and tear lactoferrin levels, making efficacy assessment robust...
April 10, 2018: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/29700547/gold-nanocages-entering-into-the-realm-of-high-contrast-photoacoustic-ocular-imaging
#6
Sreejith Raveendran, Hoong-Ta Lim, Toru Maekawa, Murukeshan Vadakke Matham, D Sakthi Kumar
Bioinert gold nanoparticles of various shapes and functionalities are widely accepted as contrast agents (CAs) for several modalities of imaging, viz., electron microscopy, computerized tomography (CT), X-ray and photoacoustic (PA) imaging. However, testing of novel compact-imaging probes for ocular diagnostic imaging is always challenging. Here, ultra-fast microwave oven synthesized gold nanocages (AuNcgs) were successfully demonstrated for high-contrast PA ocular imaging for the first time. Methods are described for the synthesis, characterization and application of quickly synthesized AuNcgs in diagnostic ocular imaging...
April 27, 2018: Nanoscale
https://www.readbyqxmd.com/read/29688789/comparison-of-angiographic-dyes-and-injection-techniques-for-ocular-anterior-segment-angiography-in-horses
#7
Chris G Pirie, Alexander J LoPinto, Wade A Tenney
OBJECTIVE To assess and compare 2 injection techniques for conducting ocular anterior segment indocyanine green angiography (ASICGA) and sodium fluorescein (SF) angiography in horses. ANIMALS 3 healthy adult female horses (age range, 19 to 25 years). PROCEDURES Horses were sedated, jugular catheters were placed, and manual restraint was used to ensure proper positioning for the angiography procedure. Two injection techniques (IV and intra-arterial) were performed for each horse 1 week apart. Intravenous injections of 0...
May 2018: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/29664512/short-stature-and-hypothyroidism-in-a-child-with-nail-patella-syndrome-a-case-report
#8
C Goecke, C Mellado, C García, H García
BACKGROUND: Nail-Patella syndrome (NPS) (OMIM: 161200) or hereditary onycho-osteodysplasia is an autosomal dominant disorder characterized by skeletal anomalies, nail dysplasia, renal and ocular abnor malities. The diagnosis is based on clinical and radiological findings and confirmed by the identification of a heterozygous pathogenic variant in the LMX1B gene. Management of these patients involves conti nuous follow-up and treatment ofthe orthopedical, ocular and renal problems that mayoccur...
February 2018: Revista Chilena de Pediatría
https://www.readbyqxmd.com/read/29663900/congenital-toxoplasmosis-in-tunisia-prenatal-and-neonatal-diagnosis-and-postnatal-follow-up-of-35-cases
#9
Boudaouara Yosr, Aoun Karim, Maatoug Rania, Souissi Olfa, Bouratbine Aïda, Ben Abdallah Rym
Congenital toxoplasmosis (CT) results from transplacental passage of Toxoplasma gondii to the fetus during acute maternal infection. Our study aims to report clinical and biological patterns of 35 cases of CT diagnosed at the department of the Parasitology of the Pasteur Institute of Tunis and to access the performance of prenatal and early postnatal diagnosis techniques. Serological screening of maternal infection was performed by Immunoglobulin (Ig) M and IgG detection and IgG avidity determination. Prenatal diagnosis was based on both Toxoplasma DNA detection in the amniotic fluid and monthly ultrasound examinations...
April 16, 2018: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29643136/orbital-metastasis-from-an-occult-breast-carcinoma-t0-n1-m1
#10
Rita Pinto Proença, Júlia Fernandes, Miguel N Burnier, Rui Proença
The authors report a case of an orbital metastasis from an occult breast carcinoma. A 66-year-old woman presented with a growing left orbital tumour. Orbital CT scan was consistent with lymphoma. However, ocular pathology revealed small neoplastic cells showing an 'indian file pattern' suggestive of metastatic carcinoma and immunohistochemistry was positive for CK7, CK CAM5.2 and oestrogen receptor. A systemic evaluation was then performed with mammogram, breast ultrasound and MRI considered normal. An exhaustive systemic evaluation revealed multiple bone lesions, a right axillary lymph node lesion, which presented the same pattern on pathology and immunohistochemistry, with no evidence of a primary tumour...
April 11, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29628552/ultrasonographic-optic-nerve-sheath-diameter-as-a-surrogate-measure-of-raised-intracranial-pressure-in-severe-pregnancy-induced-hypertension-patients
#11
Shiv Kumar Singh, Kiran Bhatia
Context: It is a well-known fact that severe pregnancy-induced hypertension (PIH) can be disastrous at times as it can cause a lot of complications to both pregnant women and her baby. Hence, it is always desirable to know the extent of severity by a real-time and easily accessible modality like ultrasound. Aims: The aim of the study was to evaluate the incidence of raised intracranial pressure (ICP) in severe preeclampsia and eclampsia patients using ocular ultrasonography with optic nerve sheath diameter (ONSD) measurement...
January 2018: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29625446/quantitative-evaluation-of-vascular-microcirculation-using-contrast-enhanced-ultrasound-imaging-in-rabbit-models-of-choroidal-melanoma
#12
Min Gao, Jinhua Tang, Kun Liu, Ming Yang, Haiyun Liu
Purpose: We investigated the application of contrast-enhanced ultrasound (CEUS) to quantify vascular perfusion in two animal models of choroidal melanoma. Methods: B16F10 and choroidal melanoma cell line (OCM1) melanoma xenografts were implanted into the cyclodialysis cleft of rabbits' right eyes. Fundus photography, indocyanine green angiography (ICGA), B-mode ultrasound, and CEUS were used to examine the tumors. Standard vascular parameters of CEUS imaging were evaluated, including the area under the receiver operating characteristic curve (AUC), peak intensity (IMAX), mean transit time (mTT), rise time, and time to peak...
March 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29582811/application-of-high-intensity-focused-ultrasound-for-treatment-of-open-angle-glaucoma-in-indian-patients
#13
Nilanjana Deb-Joardar, Kasu Prasad Reddy
Purpose: The aim of this study is to assess the efficacy of ultrasound cycloplasty (UCP) in Indian patients with open angle glaucoma (OAG). Methods: A prospective interventional study was designed to treat 73 eyes of 73 patients with OAG with the EyeOP1 device equipped with six miniaturized cylindrical piezoelectric transducers. Two treatment protocols of ultrasound delivery depending on exposure time (8 s and 10 s of shot per transducer) were used. Complete ophthalmic examination, ocular biometry and anterior segment optical coherence tomography were performed preoperatively and patients were followed up at day 1, day 7 and months 1, 2, 3, 6, and 12...
April 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29575657/consensus-on-procedures-to-include-in-a-simulation-based-curriculum-in-ophthalmology-a-national-delphi-study
#14
Ann Sofia Skou Thomsen, Morten la Cour, Charlotte Paltved, Karen Gilboe Lindorff-Larsen, Bjørn Ulrik Nielsen, Lars Konge, Leizl Joy Nayahangan
PURPOSE: The number of available simulation-based models for technical skills training in ophthalmology is rapidly increasing, and development of training programmes around these procedures should follow a structured approach. The aim of this study was to identify all technical procedures that should be integrated in a simulation-based curriculum in ophthalmology. METHODS: Key opinion leaders involved in the education of ophthalmologists in Denmark including heads of departments, heads of clinical education, professors and board members of the society were invited to participate in a three-round Delphi process...
March 25, 2018: Acta Ophthalmologica
https://www.readbyqxmd.com/read/29557836/glaucoma-with-crouzon-syndrome
#15
Abdulaziz Anazi Alshamrani, Sami Al-Shahwan
BACKGROUND: Crouzon syndrome is the most common form of craniosynostosis, and mutations in the fibroblast growth factor receptor 2 and 3 (FGFR2 and FGFR3) genes are implicated in its pathogenesis. OBSERVATION: A 10-year-old female patient with Crouzon syndrome and congenital glaucoma treated with trabeculectomy and ocular hypotensive medications was examined. The patient had proptosis, exposure keratopathy, megalocornea, thin central corneal thickness, a shallow anterior chamber, mild anterior subcapsular cataract, and a cup-to-disc ratio of 0...
March 19, 2018: Journal of Glaucoma
https://www.readbyqxmd.com/read/29543549/role-of-endobronchial-ultrasound-guided-transbronchial-needle-aspiration-in-the-diagnosis-of-intraocular-inflammation-in-india-our-experience
#16
Bhagya Sudheer, Manisha Agarwal, Deepa Sharma, Ravi Mehta, Kalpana Babu
PURPOSE: To report our experience of using Endobronchial ultrasound-guided transbronchial lymph node aspiration (EBUS-TBNA) in assessing the etiology in uveitis from two tertiary eye-care centers in India. MATERIALS & METHODS: Retrospective interventional case series. RESULTS: A total of 99 patients of uveitis who underwent EBUS-TBNA were included in the study. Mycobacterium tuberculosis (MTb) was detected on culture in 5 cases, 3 cases by polymerase chain reaction and caseating granulomas in 25 cases...
March 15, 2018: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/29542176/ocular-ultrasonographic-and-biometric-features-of-european-brown-hares-lepus-europaeus
#17
L Meomartino, M P Pasolini, B Lamagna, G Mennonna, L Auletta, C Murino, G Della Valle, L Esposito
The aim of this work is to assess the normal ultrasonographic features and dimensions of eyes in European hares. Corneal thickness, anterior chamber depth, lens thickness, vitreous chamber depth and eye axial length were measured by ultrasound in 40 healthy hares (Lepus europaeus), 20 males and 20 females, mean age of 5.5 months (range 2-15 months). The effects of sex, side, age and body weight on each feature were recorded. Results show that ocular dimensions were not affected by considered variables except for the lenses thickness and axial length that were correlated with age and body weight...
March 14, 2018: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29527011/space-flight-associated-neuro-ocular-syndrome-sans
#18
REVIEW
Andrew G Lee, Thomas H Mader, C Robert Gibson, Tyson J Brunstetter, William J Tarver
Interesting novel and somewhat perplexing physiologic and pathologic neuro-ocular findings have been documented in astronauts during and after long duration space flight (LDSF). These findings collectively have been termed the "space flight-associated neuro-ocular syndrome" (SANS). The National Aeronautics and Space Administration (NASA) in the United States has meticulously and prospectively documented the clinical, ultrasound, optical coherence tomography imaging, and radiographic findings of SANS including unilateral and bilateral optic disc edema, globe flattening, choroidal and retinal folds, hyperopic refractive error shifts, and nerve fiber layer infarcts (i...
March 12, 2018: Eye
https://www.readbyqxmd.com/read/29517148/traumatic-phacocele-in-an-american-miniature-horse
#19
Kelly E Knickelbein, Mallory Stock, Sebastian E Carrasco, Christopher M Reilly, Mary E Lassaline
An 18-year-old American Miniature Horse mare was presented with a complaint of a scleral swelling affecting the right eye and a history of suspected trauma 6 weeks prior to evaluation. Clinical findings included severe blepharospasm, a bulbous swelling of the dorsotemporal bulbar conjunctiva, and phthisis bulbi. Ocular ultrasound was recommended but declined. Enucleation was elected for the blind, painful eye and was performed standing. Gross and histopathologic examinations of the globe were consistent with extrusion of the lens to the episcleral space, which is classified as a traumatic phacocele when associated with naturally occurring trauma...
March 8, 2018: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/29503954/mucogenic-glaucoma-in-a-child
#20
Ta C Chang, Linda Y Huang, Kara M Cavuoto
Purpose: We describe a case of secondary open-angle glaucoma due to mucin-producing congenital iris stromal cyst in a 4 year old patient. Observations: A 4-year old female patient with a history of unilateral congenital iris stromal cyst presented with sudden-onset eye pain and redness, with markedly elevated intraocular pressure and evidence of early optic nerve damage. During the examination under anesthesia, the anterior chamber angle was open and there was no evidence of pupillary block...
April 2017: American Journal of Ophthalmology Case Reports
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