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https://www.readbyqxmd.com/read/29774459/possible-role-of-standardized-echography-complementing-ultrasound-biomicroscopy-in-tumors-of-the-anterior-eye-segment-a-study-in-a-series-of-13-patients
#1
B Kuzmanović Elabjer, M Bušić, D Miletić, M Bjeloš, N Vukojević, D Bosnar
PURPOSE: To evaluate the efficacy of standardized A-scan echography (ASE) complementing ultrasound biomicroscopy (UBM) to propose the most efficient method as grounds for the diagnosis, treatment, and follow-up of anterior eye-segment tumors. METHODS: The inclusion criteria were tumors of the ciliary body and peripheral choroidal tumors, whose anterior border could not be visualized with a 10 MHz ultrasound probe. The largest basal dimension and the highest prominence of the tumor were measured with a UBM Lin 50 probe...
May 17, 2018: Journal of Ultrasound
https://www.readbyqxmd.com/read/29743110/analysis-of-intraocular-positions-of-posterior-implantable-collamer-lens-by-full-scale-ultrasound-biomicroscopy
#2
Xi Zhang, Xun Chen, Xiaoying Wang, Fei Yuan, Xingtao Zhou
BACKGROUND: To analyze the positions of intraocular posterior Implantable Collamer Lens (ICL) and its possible relationship with vault. METHODS: This cross-sectional study included 72 patients with high myopia (134 eyes) who were followed up after phakic intraocular lens implantation. The postoperative time ranged from 1 week to 7 years. We obtained the images of ICL by using Compact Touch STS UBM and observed the position of ICL in posterior chamber and ciliary sulcus...
May 9, 2018: BMC Ophthalmology
https://www.readbyqxmd.com/read/29727982/relationship-of-bioaccessibility-and-fractionation-of-cadmium-in-long-term-spiked-soils-for-health-risk-assessment-based-on-four-in-vitro-gastrointestinal-simulation-models
#3
Wenzhong Tang, Qing Xia, Baoqing Shan, Jack C Ng
The bioavailability and bioaccessibility of heavy metals mainly depend on their speciation in soils; however, the relationship between bioaccessibility and its speciation as determined as fractionation remains to be better characterized. Therefore, Cd fractionations in three types of long-term Cd-spiked soils were determined using a modified BCR method, and compared with Cd bioaccessibility data obtained from four in vitro gastrointestinal simulation assays including the IVG, PBET, SBRC, and UBM. The results shows that the majority of Cd were found in the exchangeable/acid soluble (B1) and reducible (B2) fractions (total percentage>97%) after being spiked and aged for three years, indicating high Cd bioavailability; the bioaccessibility of Cd ranged from 57...
August 1, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29726304/retrorectus-repair-of-incisional-ventral-hernia-with-urinary-bladder-matrix-reinforcement-in-a-long-term-porcine-model
#4
D Adam Young, Nicolette Jackson, Catherine A Ronaghan, Collin Em Brathwaite, Thomas W Gilbert
AIM: Not all biologically derived materials elicit the same host response when used for reinforcement of ventral hernia repairs. This study aimed to evaluate the remodeling characteristics of the abdominal wall following reinforcement with urinary bladder matrix (UBM) in a large animal preclinical model of ventral hernia repair. MATERIALS & METHODS: Midline defects in 36 Yucatan minipigs were reinforced with UBM-derived surgical devices using a classic Rives-Stoppa-Wantz approach, and compared with primary repair controls...
May 4, 2018: Regenerative Medicine
https://www.readbyqxmd.com/read/29665541/evaluation-of-a-single-extraction-test-to-estimate-the-human-oral-bioaccessibility-of-potentially-toxic-elements-in-soils-towards-more-robust-risk-assessment
#5
S M Rodrigues, N Cruz, L Carvalho, A C Duarte, E Pereira, A G F Boim, L R F Alleoni, P F A M Römkens
Intake of soil by children and adults is a major exposure pathway to contaminants including potentially toxic elements (PTEs). However, only the fraction of PTEs released in stomach and intestine are considered as bioaccessible and results from routine analyses of the total PTE content in soils, therefore, are not necessarily related to the degree of bioaccessibility. Experimental methods to determine bioaccessibility usually are time-consuming and relatively complicated in terms of analytical procedures which limits application in first tier assessments...
April 13, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29649634/injectable-porous-biohybrid-hydrogels-incorporating-decellularized-tissue-components-for-soft-tissue-applications
#6
Yang Zhu, Sato Hideyoshi, Hongbin Jiang, Yasumoto Matsumura, Jenna L Dziki, Samuel T LoPresti, Luai Huleihel, Gabriela N F Faria, Leah C Fuhrman, Ricardo Lodono, Stephen F Badylak, William R Wagner
Biodegradable injectable hydrogels have been extensively studied and evaluated in various medical applications such as for bulking agents, drug delivery reservoirs, temporary barriers, adhesives, and cell delivery matrices. Where injectable hydrogels are intended to facilitate a healing response, it may be desirable to encourage rapid cellular infiltration into the hydrogel volume from the tissue surrounding the injection site. In this study, we developed a platform technique to rapidly form pores in a thermally responsive injectable hydrogel, poly(NIPAAm-co-VP-co-MAPLA) by using mannitol particles as porogens...
April 9, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29625448/anterior-choroidal-thickness-increased-in-primary-open-angle-glaucoma-and-primary-angle-closure-disease-eyes-evidenced-by-ultrasound-biomicroscopy-and-ss-oct
#7
Kai Gao, Fei Li, Yingqi Li, Xingyi Li, Wenbin Huang, Shida Chen, Yaoming Liu, Tin Aung, Xiulan Zhang
Purpose: To compare the anterior and posterior choroid thickness (ACT and PCT, respectively) in primary open-angle glaucoma (POAG), primary angle-closure disease (PACD), and healthy control subjects. Methods: A total of 29 POAG patients (56 eyes), 37 PACD patients (64 eyes), and 34 healthy volunteers (68 eyes) were enrolled in this study; 50 POAG eyes were divided into 25 early/moderate-stage and 25 advanced-stage eyes by visual field loss, while 64 PACD eyes were classified as primary angle-closure suspect (PACS), 8 eyes; primary angle closure (PAC), 18 eyes; and primary angle-closure glaucoma (PACG), 38 eyes...
March 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29557836/glaucoma-with-crouzon-syndrome
#8
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/29516316/anterior-segment-ultrasound-biomicroscopy-image-analysis-using-imagej-software-intra-observer-repeatability-and-inter-observer-agreement
#9
Azam Qureshi, Haoxing Chen, Osamah Saeedi, Mona A Kaleem, Gianna Stoleru, Jordan Margo, Sachin Kalarn, Janet L Alexander
PURPOSE: In this novel study, we demonstrate a standardized imaging and measurement protocol of anterior segment (AS) structures with reliability analysis using ultrasound biomicroscopy (UBM) and ImageJ software. METHODS: Ten pediatric and young adult patients undergoing examination under anesthesia for AS pathology were imaged using UBM. Four trained observers analyzed 20 images using ImageJ. Forty-five structural parameters were measured. Those that relied on the trabecular-iris angle (TIA) as a reference landmark were labeled TIA-dependent (TD) and all others were labeled non-TIA dependent (NTD)...
March 7, 2018: International Ophthalmology
https://www.readbyqxmd.com/read/29516042/the-role-of-clear-lens-extraction-in-angle-closure-glaucoma
#10
REVIEW
Vasile Potop, Catalina Corbu
Clear lens extraction can be considered a therapeutic option in angle closure glaucoma (ACG). Even if it does not represent the first choice of treatment, it can be taken into consideration when the topical treatment does not control the intraocular pressure (IOP) and iridotomy does not have a positive effect on the angle closure, especially in appositional angle closure when biometry or ultrabiomicroscopy (UBM) show lens involvement. In angle closure glaucoma, clear lens extraction represents an etiological treatment that takes into account the role of the lens in the pathogenesis of the disease...
October 2017: Romanian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29500812/acute-ocular-pain-during-magnetic-resonance-imaging-due-to-retained-intraocular-metallic-foreign-body-the-role-of-ultrasonography-and-ultrasound-biomicroscopy-in-diagnosis-and-management-of-this-condition
#11
REVIEW
Nikolaos Mamas, Konstantinos Andreanos, Dimitrios Brouzas, Andreas Diagourtas, Andreas Droulias, Ilias Georgalas, Dimitrios Papaconstantinou
PURPOSE: To report the case of a 65-year-old metalworker with no known history of ocular trauma, who suffered from intense ocular pain during magnetic resonance imaging (MRI) of the brain, due to a retained intraocular metallic foreign body (IOFB). CASE REPORT: Meticulous ophthalmological examination was inconclusive. An IOFB was confirmed with X-ray scan, whereas its exact localization was enabled by means of ultrasonography and ultrasound biomicroscopy (UBM). CONCLUSIONS: Despite appropriate screening protocols, MRI-related ocular complications might occur in the presence of a hidden metallic IOFB...
March 2, 2018: Journal of Ultrasound
https://www.readbyqxmd.com/read/29491485/difference-of-uveal-parameters-between-the-acute-primary-angle-closure-eyes-and-the-fellow-eyes
#12
Xingyi Li, Wei Wang, Wenbin Huang, Shida Chen, Jiawei Wang, Zhonghao Wang, Yaoming Liu, Mingguang He, Xiulan Zhang
PURPOSE: To measure the anterior and posterior ocular biometric characteristics concurrently and to explore the relationship between iris, ciliary body and choroid in acute primary angle closure eyes (APAC) and fellow eyes. METHODS: It is a prospective, cross-sectional study. Thirty patients with recent APAC were finally enroled in it. Anterior and posterior uveal parameters were measured simultaneously by anterior segment optical coherence tomography (AS-OCT), swept-source optical coherence tomography (SS-OCT) and ultrasound biomicroscopy (UBM)...
March 1, 2018: Eye
https://www.readbyqxmd.com/read/29487814/functional-evaluation-of-the-filtering-bleb-by-ultrasound-biomicroscopy-after-trabeculectomy-with-mitomycin-c
#13
Ali Abbas El Salhy, Rabab Mohamed Elseht, Ahmed Fekry Al Maria, Saied Mohamed Abd El-Wahab Shalaby, Tarek Ragaee Hossein
AIM: To study the role of ultrasound biomicroscopy (UBM) in the assessment of the bleb function after trabeculectomy with mitomycin C (MMC). METHODS: This was a cross-sectional study including all cases had undergone trabeculectomy with MMC 0.2 mg/mL for 3min. Participants were recruited from the follow-up cases at Department of Ophthalmology, Tanta University in the period from August 2015 to August 2016. Full history taking and ophthalmological examination were performed...
2018: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29480247/ultrasound-biomicroscopy-image-patterns-in-normal-upper-eyelid-and-congenital-ptosis-in-the-indian-population
#14
Abhidnya Surve, Rachna Meel, Neelam Pushker, M S Bajaj
Purpose: To study the features of upper eyelid in healthy individual and different types of congenital ptosis in the Indian population using ultrasound biomicroscopy (UBM). Methods: This was a prospective observational study at a tertiary care center. Eyelid structure of healthy individuals with no eyelid abnormalities (n = 19); simple congenital ptosis (n = 33) cases; Marcus Gunn jaw-winking ptosis (MGJWP, n = 7) cases, and blepharophimosis-ptosis-epicanthus inversus syndrome (BPES, n = 20) cases were studied on a vertical UBM scan using 50-MHz probe...
March 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29468209/juvenile-xanthogranuloma-involving-concurrent-iris-and-skin-clinical-pathological-and-molecular-pathological-evaluations
#15
Peter Meyer, Elisabeth Graeff, Corina Kohler, Francis Munier, Elisabeth Bruder
Purpose: To report a case of juvenile xanthogranuloma involving the iris and skin that clincally was diagnosed with an obvious cutaneous lesion. Observations: A four month-old girl with hyphema and increased intraocular pressure of the left eye persisting for 2 weeks. A suspicious yellow-brown mass with nodular surface and traversed by irregular vascularization was noted on the inferior iris surface. Ultrasound biomicroscopy (UBM; 35 MHz) of the mass revealed multiple nodular irregular hyperreflective lesions in the peripheral iris...
March 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29444155/conjunctival-melanocytic-naevus-diagnostic-value-of-anterior-segment-optical-coherence-tomography-and-ultrasound-biomicroscopy
#16
COMPARATIVE STUDY
Eszter Vizvári, Ákos Skribek, Nóra Polgár, András Vörös, Pál Sziklai, Edit Tóth-Molnár
PURPOSE: Conjunctival naevi are the most frequently diagnosed primary melanocytic lesions of the conjunctiva. The clinical manifestations are greatly variable which may result in diagnostic difficulties and differential diagnostic confusions. Therefore aims of the present study were: 1) to assess the morphologic features of conjunctival naevi; 2) to delineate the anterior segment optical coherence tomography (AS-OCT) characteristics of these lesions; 3) to compare AS-OCT and ultrasound biomicroscopy (UBM) as diagnostic tools in these alterations and 4) to correlate histological results with the AS-OCT pictures in case of surgically excised naevi...
2018: PloS One
https://www.readbyqxmd.com/read/29428083/comparison-of-central-corneal-thickness-in-dogs-measured-by-ultrasound-pachymetry-and-ultrasound-biomicroscopy
#17
Eva Martín-Suárez, Alba Galán, Juan Morgaz, Alicia Guisado, José María Gallardo, Rafael Jesús Gómez-Villamandos
Ultrasound pachymetry (UP) is currently the most common technique used to evaluate central corneal thickness (CCT). New devices which allow assessment of CCT without corneal contact have been compared, but there are discrepancies among instruments. The aim of this study was to compare CCT measurements obtained by UP and ultrasound biomicroscopy (UBM) in 28 eyes of 14 healthy Beagles dogs. Mean CCT±standard deviation (SD) were 552±63μm for UP and 551±55μm for UBM. UBM showed both a fixed and proportional bias when compared to ultrasound pachymetry, but this was not considered to be clinically important...
February 2018: Veterinary Journal
https://www.readbyqxmd.com/read/29425799/vancomycin-associated-hemorrhagic-occlusive-retinal-vasculitis-a-clinical-pathophysiological-analysis
#18
Bozho Todorich, Lisa J Faia, Aristomenis Thanos, Mitual Amin, Robert Folberg, Jeremy D Wolfe, Krista M Todorich, Efthemios Raphtis, Alan J Ruby, George A Williams, Tarek S Hassan
PURPOSE: To derive novel insights into the pathophysiology of vancomycin-related hemorrhagic occlusive retinal vasculopathy (HORV) through a careful clinicopathologic correlation. METHODS: We retrospectively reviewed the clinical and pathologic course of 2 consecutive patients who developed HORV. The clinical history, multimodal imaging, ultrasound biomicroscopy (UBM), and intraoperative and histologic findings are reported. RESULTS: Both patients presented with decreased vision and eye pain within 1 week following otherwise uncomplicated cataract extraction and were diagnosed with HORV after endophthalmitis was ruled out...
April 2018: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/29394206/secondary-glaucoma-due-to-iridescent-crystalline-particles-masquerading-as-refractory-hypertensive-uveitis-in-an-eye-with-irradiated-iris-melanoma
#19
Rupinder Chahal, Abhijit A Mohite, Heinrich Heimann, Atul Bansal
PURPOSE: We report a previously unrecognized mechanism of secondary glaucoma due to iridescent crystalline particles released from an irradiated iris melanoma. It masqueraded as refractory hypertensive uveitis following uncomplicated phacoemulsification. MATERIALS AND METHODS: A 58-year-old gentleman had an iris melanoma that underwent successful regression following irradiation with proton beam radiotherapy. Three years later an uncomplicated phacoemulsification with intraocular lens implant was performed and subsequently the patient presented with apparently "refractory hypertensive uveitis...
April 2018: Journal of Glaucoma
https://www.readbyqxmd.com/read/29349557/a-rare-ocular-complication-of-neisseria-gonorrhoeae
#20
Thiago Gonçalves Dos Santos Martins, Ana Luiza Fontes de Azevedo Costa
BACKGROUND: Spontaneous formation of subconjunctival filtering blebs is rare and has been observed after penetrating ocular surgery, in association with connective tissue diseases and inflammatory conditions. METHOD: We describe here a case of a spontaneous formation of subconjunctival filtering bleb as sequelae of gonococcal conjunctivitis in an adult patient. RESULTS: Spontaneous filtering bleb is a rare complication of gonococcal conjunctivitis...
January 18, 2018: Irish Journal of Medical Science
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