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Clinical keratitis

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https://www.readbyqxmd.com/read/28911993/ocular-manifestations-of-familial-transthyretin-amyloidosis
#1
Margaret M Reynolds, Kevin K Veverka, Morie A Gertz, Angela Dispenzieri, Steven R Zeldenrust, Nelson Leung, Jose S Pulido
PURPOSE: Among patients with familial amyloidosis, mutation in the transthyretin (TTR) protein is the most common type. Patients with TTR amyloidosis have been noted to have ocular, especially vitreous, involvement. In this report, an analysis of the types and frequency of ocular manifestations in TTR amyloidosis is presented. DESIGN: Observational case series. METHODS: Two hundred and sixty-three patients who presented to Mayo Clinic with TTR amyloidosis between January 1, 1970, and November 1, 2014, consented to be included in the Mayo Clinic amyloidosis database maintained by the Department of Hematology...
September 11, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28903964/clinical-profile-of-pythium-keratitis-perioperative-measures-to-reduce-risk-of-recurrence
#2
Shweta Agarwal, Geetha Iyer, Bhaskar Srinivasan, Mamta Agarwal, Shobha Panchalam Sampath Kumar, Lily K Therese
PURPOSE: To report the clinical profile and role of perioperative adjunctive measures to reduce the risk of recurrence in Pythium insidiosum keratitis. METHODS: Retrospective analysis of 10 eyes of 10 patients with P. insidiosum keratitis. Diagnosis was confirmed by PCR DNA sequencing. RESULTS: 7out of 10 patients were from urban locales, and none had any obvious history of injury with vegetative matter and were being treated for fungal keratitis...
September 13, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28902722/diagnostic-approach-to-ocular-infections-using-various-techniques-from-conventional-culture-to-next-generation-sequencing-analysis
#3
Hiroshi Eguchi, Fumika Hotta, Tomomi Kuwahara, Haruyuki Imaohji, Chika Miyazaki, Miou Hirose, Shunji Kusaka, Masahiko Fukuda, Yoshikazu Shimomura
Ocular infection is caused by both endogenous (resident) and exogenous (environmental) microbes. As the ocular surface interacts with both outer environment and its own resident microbiota, clinical ocular samples are predicted to contain a diverse set of microorganisms. Microscopy of sample smears is an important step in the diagnostic process of infectious diseases to interpret the culture results. Traditional culture techniques have several limitations in the detection and/or identification of uncharacterized bacteria of environmental origin...
September 11, 2017: Cornea
https://www.readbyqxmd.com/read/28867932/a-dna-dot-hybridization-model-for-molecular-diagnosis-of-parasitic-keratitis
#4
Fu-Chin Huang, Hsin-Yi Hsieh, Tsung C Chang, Shu-Li Su, Shin-Ling Tseng, Yu-Hsuan Lai, Ming-Tse Kuo
PURPOSE: Developing a DNA dot hybridization model for diagnosing parasitic keratitis. METHODS: Newly designed oligonucleotide probes for detecting Acanthamoeba and microsporidia were tested with target reference strains of Acanthamoeba (n = 20) and microsporidia (n = 3), and non-target microorganisms, including bacteria (n = 20) and fungi (n = 20). These probes, which had passed the preliminary tests, were then assembled as a parasite dot hybridization (PDH) model for assessing 33 clinical samples from patients with clinically suspected Acanthamoeba and microsporidia keratitis, including eight positives for Acanthamoeba, 13 positives for microsporidia, and 12 negatives for both pathogens...
2017: Molecular Vision
https://www.readbyqxmd.com/read/28846777/efficacy-of-a-fixed-combination-of-tetracycline-chloramphenicol-and-colistimethate-sodium-for-treatment-of-candida-albicans-keratitis
#5
Anna R Blanco, Antonia Nostro, Valeria D'Angelo, Manuela D'Arrigo, Maria G Mazzone, Andreana Marino
Purpose: To evaluate the antifungal activity of a fixed antibiotic combination (AC) containing tetracycline (TET), chloramphenicol (CAF), and colistimethate sodium (CS). Methods: In vitro: Candida ATCC and clinical strains were used. The minimum inhibitory concentrations (MICs) of AC and of each antibiotic were determined. Fluconazole (FLC) was tested for comparison. Time-killing curves of selected strains were performed. Ex vivo keratitis: corneas were injected intrastromally with the selected strains...
August 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28844988/risk-factors-demographics-and-clinical-profile-of-acanthamoeba-keratitis-in-melbourne-an-18-year-retrospective-study
#6
Matthew Hao Lee, Robin Geoffrey Abell, Biswadev Mitra, Merv Ferdinands, Rasik B Vajpayee
PURPOSE: To assess incidence, risk factors, presentation and final visual outcome of patients with Acanthamoebakeratitis (AK) treated at the Royal Victorian Eye and Ear Hospital (RVEEH), Melbourne, Australia, over an 18-year period. METHODS: A retrospective review of all cases of AK managed at RVEEH between January 1998 and May 2016 was performed. Data collected included age, gender, affected eye, signs and symptoms, time between symptoms and diagnosis, risk factors, presenting and final visual acuity (VA), investigations, medical treatment, surgical interventions and length of follow-up...
August 27, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28834821/therapeutic-femtosecond-laser-assisted-lamellar-keratectomy-for-multidrug-resistant-nocardia-keratitis
#7
Parth Shah, Dagny Zhu, William W Culbertson
PURPOSE: To describe the novel use of femtosecond laser technology for therapeutic resection of infectious foci in a case of multidrug-resistant Nocardia asteroides keratitis. METHODS: A 30-year-old man presented with a corneal infiltrate. Cultures were taken, and fortified vancomycin and tobramycin were initiated. After 3 negative cultures and minimal improvement on various broad-spectrum antibiotics, all topical medications were stopped and a final fourth corneal culture grew N...
August 22, 2017: Cornea
https://www.readbyqxmd.com/read/28834815/effect-of-multipurpose-solution-combined-with-autophagy-inhibitors-on-adhesion-of-acanthamoeba-trophozoites-to-silicone-hydrogel-contact-lenses
#8
Seung-Mok Lee, Da-In Lee, Sung-Hee Park, Hak-Sun Yu, Ji-Eun Lee, Jong-Soo Lee
PURPOSE: The aim of the study was to evaluate the effect of multipurpose contact lens (CL) solution (MPS) combined with autophagy inhibitors on the adhesion properties of Acanthamoeba castellanii (AC) trophozoites to silicone hydrogel CLs. METHODS: AC trophozoites were inoculated onto discs trimmed from a silicone hydrogel CL with plasma surface treatment. After 18 hours, the number of adherent AC trophozoites on the CL treated with MPS was counted under phase-contrast microscopy...
August 22, 2017: Cornea
https://www.readbyqxmd.com/read/28832741/supratarsal-injection-of-triamcinolone-for-severe-vernal-keratoconjunctivitis-in-children
#9
Alexandre Xavier da Costa, José Álvaro Pereira Gomes, Leonardo Guedes Candido Marculino, Vera Lucia Liendo, Telma Pereira Barreiro, Myrna Serapião Dos Santos
PURPOSE: To evaluate the use of supratarsal injection of triamcinolone acetonide in severe vernal keratoconjunctivitis (VKC) in children. METHODS: Patients included in this open clinical trial were those with severe VKC-associated with keratitis, gelatinous limbal infiltrates, and/or giant papillae, with a history of recurrence and resistance to conventional topical antiallergic agents. Patients were treated with a supratarsal injection of 20 mg triamcinolone acetonide...
June 2017: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/28827430/topical-ayurvedic-ointment-induced-chemical-injury-presenting-as-bilateral-acute-keratitis
#10
Pranita Sahay, Gunjan Saluja, Prafulla Kumar Maharana, Jeewan S Titiyal
A 40-years-old female patient was referred to the cornea clinic as a probable case of bilateral keratitis. The patient had a history of headache followed by acute onset of redness, pain and discharge from both eyes for 15 days. The patient was diagnosed as bilateral keratitis by the first contact physician and was started on topical antibiotics, cycloplegics and lubricating eye-drops. At presentation, both eyes had visual acuity of perception of light, conjunctival congestion, limbal blanching, diffuse corneal oedema and epithelial defect...
August 20, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28820347/association-between-eye-diagnosis-and-positive-syphilis-test-results-in-a-large-urban-sexually-transmitted-infection-primary-care-clinic-population
#11
Ann-Marie Lobo, Yan Gao, Laura Rusie, Magda Houlberg, Supriya D Mehta
In 2015, the Centers for Disease Control and Prevention (CDC) and the American Academy of Ophthalmology (AAO) released clinical advisories on rising cases of ocular syphilis. We examined the association between eye disease and syphilis infection among primary care and sexually transmitted infection (STI) clinic patients attending an urban lesbian, gay, bisexual, transgender (LGBT) health center. We conducted a retrospective medical record review of all patients who underwent syphilis testing at Howard Brown Health between 1 January 2010 and 31 December 2015...
January 1, 2017: International Journal of STD & AIDS
https://www.readbyqxmd.com/read/28817744/predictors-of-corneal-perforation-or-need-for-therapeutic-keratoplasty-in-severe-fungal-keratitis-a-secondary-analysis-of-the-mycotic-ulcer-treatment-trial-ii
#12
RANDOMIZED CONTROLLED TRIAL
N Venkatesh Prajna, Tiruvengada Krishnan, Revathi Rajaraman, Sushila Patel, Ranjeet Shah, Muthiah Srinivasan, Manoranjan Das, Kathryn J Ray, Catherine E Oldenburg, Stephen D McLeod, Michael E Zegans, Nisha R Acharya, Thomas M Lietman, Jennifer Rose-Nussbaumer
Importance: Identifying patients with infectious keratitis who are at risk of experiencing a poor outcome may be useful to allocate resources toward high-risk patients, particularly in resource-poor settings. Objective: To determine baseline patient and ulcer characteristics that predict a high risk of developing corneal perforation and/or the need to undergo therapeutic penetrating keratoplasty (TPK). Design, Setting, and Participants: This is a secondary analysis of Mycotic Ulcer Treatment Trial II, a multicenter, double-masked, placebo-controlled randomized clinical trial that enrolled 240 patients with smear-positive filamentous fungal corneal ulcers who enrolled between May 2010 and August 2015...
September 1, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28810564/clinical-efficacy-of-conjunctival-flap-surgery-in-the-treatment-of-refractory-fungal-keratitis
#13
Honorine Nizeyimana, Dan-Dan Zhou, Xiu-Fen Liu, Xiao-Tao Pan, Cong Liu, Cheng-Wei Lu, Ji-Long Hao
The aim of the present study was to investigate the use and effectiveness of a selective, partial, pedunculated (tongue-shaped) conjunctival flap (CF) for the treatment of refractory fungal keratitis (FK) with or without perforation. A total of 31 cases of corneal diseases treated by CF surgery between April 2014 and October 2015 were evaluated. Among the 31 cases, 16 cases (male:female, 11:5) with FK were selected. Logistic regression analysis was used to investigate factors associated with complications of CF surgery...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28802816/safety-and-efficacy-of-an-8-week-regimen-of-grazoprevir-plus-ruzasvir-plus-uprifosbuvir-compared-with-grazoprevir-plus-elbasvir-plus-uprifosbuvir-in-participants-without-cirrhosis-infected-with-hepatitis-c-virus-genotypes-1-2-or-3-c-crest-1-and-c-crest-2-part
#14
Edward J Gane, Stephen Pianko, Stuart K Roberts, Alexander J Thompson, Stefan Zeuzem, Eli Zuckerman, Ziv Ben-Ari, Graham R Foster, Kosh Agarwal, Alex L Laursen, Jan Gerstoft, Wei Gao, Hsueh-Cheng Huang, Brian Fitzgerald, Doreen Fernsler, Jerry J Li, Anjana Grandhi, Hong Liu, Feng-Hsiu Su, Shuyan Wan, Zhen Zeng, Huei-Ling Chen, Frank J Dutko, Bach-Yen T Nguyen, Janice Wahl, Michael N Robertson, Eliav Barr, Wendy W Yeh, Rebeca M Plank, Joan R Butterton, Rafael Esteban
BACKGROUND: New hepatitis C virus (HCV) therapies with pan-genotypic efficacy are needed. The goals of part A of C-CREST-1 and C-CREST-2 were to compare the efficacies of two doses (300 mg or 450 mg once daily) of uprifosbuvir (MK-3682; NS5B inhibitor) in an 8-week regimen combined with grazoprevir (NS3/4A inhibitor; 100 mg once daily) and an NS5A inhibitor, either elbasvir (50 mg once daily) or ruzasvir (MK-8408; 60 mg once daily), and to evaluate the safety and tolerability of these combination regimens in individuals infected with genotypes 1, 2, or 3...
August 9, 2017: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28791060/outcome-of-single-piece-intraocular-lens-sulcus-implantation-following-posterior-capsular-rupture-during-phacoemulsification
#15
Masomeh Mohebbi, Seyed Ali Bashiri, Seyed Farzad Mohammadi, Behnaz Samet, Fariba Ghassemi, Elham Ashrafi, Fatemeh Bazvand
PURPOSE: To assess the safety and outcome of single-piece posterior chamber intraocular lens (PC-IOL) implantation in the ciliary sulcus following posterior capsular rupture during cataract surgery. METHODS: Patients with posterior capsular rupture during cataract surgery with a single-piece acrylic IOL implanted into the ciliary sulcus were studied. Complete ocular examinations were performed after 6 months postoperatively. RESULTS: Twenty-four eyes were included...
July 2017: Journal of Ophthalmic & Vision Research
https://www.readbyqxmd.com/read/28770882/visual-outcome-in-patients-of-keratomycosis-at-a-tertiary-care-centre-in-larkana-pakistan
#16
Syed Imtiaz Ali Shah, Shujaat Ali Shah, Partab Rai, Naeem Akhtar Katpar, Safdar Ali Abbasi, Akbar Ali Soomro
OBJECTIVE: To study the post-treatment visual outcome of fungal keratitis. METHODS: This prospective study was carried out at Chandka Medical College and Hospital, Larkana, Pakistan, from March 2005 to March 2016. Patients with clinical features of fungal keratitis, with positive corneal scrapings for fungi, and those who followed up for a minimum period of three months after recovery from infection were included.Other causes of infectious keratitis were excluded...
July 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28758436/-diagnostics-and-treatment-of-infectious-keratitis
#17
Nóra Szentmáry, László Módis, László Imre, Ágnes Füst, Loay Daas, Lenke Laurik, Berthold Seitz, Zoltán Zsolt Nagy
We summarize up-to-date diagnostic and treatment of infectious keratitis using literature data and some clinical examples. In the clinical practice, most commonly bacterial, herpetic, mycotic and acanthamoeba keratitis occur. Beside slitlamp examination, for diagnostic purpose, we analyse corneal sensitivity, perform in vivo confocal microscopy, polymerase-chain-reaction (PCR), in vitro culture and histological examination of the corneal sample. As conservative treatment we use primarily topical moxifloxacin or cephasolin with fortified tobramycin or gentamycin in bacterial, topical antiviral gel (in some cases in combination with systemic antiviral treatment) in part in combination with topical corticosteroids in herpetic, voriconasole or amphotericin-B in mycotic, and topical-triple-therapy (diamidine, biguanid and antibiotics) in acanthamoeba keratitis...
August 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/28755026/sensitivity-of-enzymatic-toxins-from-corneal-isolate-of-acanthamoeba-protozoan-to-physicochemical-parameters
#18
Viviane P Sant'Ana, Annette S Foronda, Denise de Freitas, Linda C Carrijo-Carvalho, Fábio Ramos de Souza Carvalho
Acanthamoeba is a free-living amoeba that causes severe corneal infection (Acanthamoeba keratitis) and produces a variety of extracellular enzymes, called exoproteome. Since physicochemical characters are suggested being associated with therapeutic profile and clinical severity of the infection, we investigated the physicochemical properties of proteolysis mediated by amoebic exoproteome. Corneal scraping was collected from a patient who showed typical symptoms of acute Acanthamoeba keratitis. Axenic amoeba was phylogenetically identified by 18S rDNA sequencing analysis...
July 28, 2017: Current Microbiology
https://www.readbyqxmd.com/read/28754142/development-and-validation-of-a-real-time-pcr-assay-for-the-detection-of-clinical-acanthamoebae
#19
Nessika Karsenti, Rachel Lau, Andrew Purssell, Ann Chong-Kit, Marlou Cunanan, Jason Gasgas, Jinfang Tian, Amanda Wang, Filip Ralevski, Andrea K Boggild
BACKGROUND: Suboptimal agreement between molecular assays for the detection of Acanthamoeba spp. in clinical specimens has been demonstrated, and poor assay sensitivity directly imperils the vision of those affected by amoebic keratitis (AK) through delayed diagnosis. We sought to develop and validate a single Taqman real time PCR assay targeting the Acanthamoeba 18S rRNA gene that could be used to enhance sensitivity and specificity when paired with reference assays. METHODS: Biobanked DNA from surplus delinked AK clinical specimens and 10 ATCC strains of Acanthamoeba was extracted...
July 28, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28750792/heat-shock-proteins-70kda-eosinophil-cationic-protein-and-nitric-oxide-during-chronic-superficial-keratitis-in-dogs
#20
Renata Urban-Chmiel, Ireneusz Balicki, Andrzej Wernicki
The objective of the study is to determine the levels of eosinophil cationic protein (ECP), heat shock proteins 70, and nitric oxide ions measured as nitrite ions (Griess reaction) in dogs with chronic superficial keratitis (CSK). The study was conducted on 24 dogs with CSK. Blood sera from the animals were tested for concentrations of heat shock proteins 70, ECP, and nitrite ions before treatment and again 5 weeks and 6 months after treatment. Dogs with CSK were treated for 6 months with various regimes involving the use of ophthalmic drops containing dexamethasone, dimethyl sulfoxide, and cyclosporine...
March 2017: Topics in Companion Animal Medicine
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