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https://www.readbyqxmd.com/read/29133639/comparison-of-seropositivity-of-human-immunodeficiency-virus-hepatitis-b-virus-hepatitis-c-virus-and-syphilis-among-hospital-cornea-retrieval-programme-donors-versus-voluntary-cornea-donors-at-a-large-eye-bank-in-eastern-india
#1
Soham Basak, Samar K Basak, Bani Biswas
PURPOSE: To compare the serology profile of donors from Hospital Cornea Retrieval Programme-donors (HCRP-D) and voluntary cornea donors (VC-D) from a large eye bank in Eastern India. METHODS: This is a retrospective analysis of donor details from January 2011 to December 2016. Donor demographics, cause of death, and serology reports were compiled. Postmortem blood was tested for human immunodeficiency virus 1 and 2 (HIV), hepatitis B virus (HBV), hepatitis C virus (HCV), and syphilis using government-approved kits as per the National Programme for Control of Blindness Standards of Eye Banking...
November 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29127432/corneal-endothelial-cell-loss-3-years-after-successful-descemet-stripping-automated-endothelial-keratoplasty-in-the-cornea-preservation-time-study-a-randomized-clinical-trial
#2
Jonathan H Lass, Beth Ann Benetz, David D Verdier, Loretta B Szczotka-Flynn, Allison R Ayala, Wendi Liang, Anthony J Aldave, Steven P Dunn, Tyrone McCall, Shahzad I Mian, Lisa C Navarro, Sanjay V Patel, Sudeep Pramanik, George O Rosenwasser, Kevin W Ross, Mark A Terry, Craig Kollman, Robin L Gal, Roy W Beck
Importance: Demonstrating that endothelial cell loss following Descemet stripping automated endothelial keratoplasty (DSAEK) is independent of donor cornea preservation time (PT) could increase the pool of corneal tissue available for keratoplasty. Objective: To determine whether endothelial cell loss 3 years after successful DSAEK is related to PT. Design, Setting, and Participants: A multicenter, double-masked, randomized clinical trial included 40 clinical sites (70 surgeons) in the United States, with donor corneas provided by 23 US eye banks...
November 10, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/29127431/effect-of-cornea-preservation-time-on-success-of-descemet-stripping-automated-endothelial-keratoplasty-a-randomized-clinical-trial
#3
George O Rosenwasser, Loretta B Szczotka-Flynn, Allison R Ayala, Wendi Liang, Anthony J Aldave, Steven P Dunn, Tyrone McCall, Lisa C Navarro, Sudeep Pramanik, Kevin W Ross, R Doyle Stulting, Mark A Terry, Elmer Y Tu, David D Verdier, Craig Kollman, Robin L Gal, Roy W Beck, Jonathan H Lass
Importance: Demonstrating that success of Descemet stripping automated endothelial keratoplasty is similar across donor cornea preservation times (PTs) could increase the donor pool. Objective: To determine whether the 3-year rate of graft success using corneal donor tissue preserved 8 to 14 days is noninferior to that of donor tissue preserved 7 days or less. Design, Setting, and Participants: A multicenter, double-masked, randomized noninferiority clinical trial was conducted from April 16, 2012, to June 5, 2017, at 40 clinical sites (70 surgeons) in the United States, with donor corneas provided by 23 US eye banks...
November 10, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/29079991/establishment-of-a-porcine-corneal-endothelial-organ-culture-model-for-research-purposes
#4
Berenike C Kunzmann, Olaf J C Hellwinkel, Christian Klameth, Daniel Wenzel, Karl U Bartz-Schmidt, Martin S Spitzer, Maximilian Schultheiss
Human corneas usually are not available for research, as they are used for transplantation only. At the same time, scientific studies on cultured human endothelial cells can produce misleading results due to inevitable dedifferentiation. Therefore, an organ-culture model of porcine corneas-displaying endothelial cell death rates comparable to those of cultured human corneas-would be very desirable. Fresh pig eyes were prepared under sterile conditions to obtain corneoscleral buttons, corneal buttons and so called "split corneal buttons" (new preparation method) and cultivated for 15 days...
October 27, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/29075752/clinical-features-and-outcomes-of-patients-with-tubercular-uveitis-treated-with-antitubercular-therapy-in-the-collaborative-ocular-tuberculosis-study-cots-1
#5
Rupesh Agrawal, Dinesh Visva Gunasekeran, Robert Grant, Aniruddha Agarwal, Onn Min Kon, Quan Dong Nguyen, Carlos Pavesio, Vishali Gupta
Importance: Eradication of systemic tuberculosis (TB) has been limited by neglected populations and the HIV pandemic. Whereas ocular TB often presents as uveitis without any prior evidence of systemic TB, the existing uncertainty in the diagnosis of TB uveitis may perpetuate missed opportunities to address systemic TB. Objective: To examine the clinical features of TB uveitis and the associations with response to antitubercular therapy (ATT). Design, Setting, and Participants: This retrospective multinational cohort study included patients from 25 ophthalmology referral centers diagnosed with TB uveitis and treated with ATT from January 1, 2004, through December 31, 2014, with a minimum follow-up of 1 year...
October 26, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/29071453/donor-cornea-tissue-in-cases-of-drowning-or-water-submersion-eye-banks-practice-patterns-and-tissue-outcomes
#6
Nithya P Vijayakumar, Purak Parikh, Shahzad I Mian, Brad Tennant, Gregory H Grossman, Bob Albrecht, Leslie M Niziol, Maria A Woodward
Surgical use of donor corneal tissue from victims of water submersion (drowning or submersion secondary to death) remains controversial due to limited evidence about the quality of these tissues. To assess the safety of donor corneal tissue from victims of water submersion, an investigation of eye banks' practice patterns and tissue outcomes was conducted. All 79 Eye Bank Association of America accredited eye banks were contacted for a phone interview of practices regarding tissue from victims of water submersion...
October 25, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/29062783/in-situ-cornea-harvesting-through-the-red-cross-organization-a-new-approach-to-relieving-severe-cornea-donor-shortage-in-chinese-eye-banks
#7
Su-Xia Li, Fu-Hua Wang, Ting Wang, Sha-Sha Han, Wei-Yun Shi
Corneal diseases are currently the second main cause of blindness in China. Although most of the corneal blindness could be treated by corneal transplantation, only about 10 000 operations were carried out each year owing to the severe shortage of corneal donors and limited eye bank programs. A feasible cornea donation program was established through the organization of the Red Cross, and in situ corneal removal techniques were developed to avoid conflicts with Chinese traditions of keeping the deceased intact...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29022123/assessment-of-a-closed-wash-system-developed-for-processing-living-donor-femoral-heads
#8
M J Eagle, J Man, P Rooney, T A McQuillan, G Galea, J N Kearney
NHS Blood and Transplant Tissue and Eye Services (TES) and Scottish National Blood Transfusion Services Tissues and Cells Directorate (TCD) currently bank whole, frozen femoral head bone from living donors who are undergoing primary hip replacement surgery. When required, the bone is issued to a surgeon still frozen on dry ice (- 79 °C). Consequently, the femoral head bone is not processed, is not sterilised and at the time of issue, it contains donor blood, bone marrow and associated cells. We have previously shown that, cut, shaped and washed bone from deceased donors can be processed to remove up to 99...
October 11, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28990995/donor-tissue-preparation-for-descemet-membrane-endothelial-keratoplasty-an-updated-review
#9
Rénuka S Birbal, Shameema Sikder, Jessica T Lie, Esther A Groeneveld-van Beek, Silke Oellerich, Gerrit R J Melles
PURPOSE: To provide an overview of the current literature on donor tissue preparation for Descemet membrane endothelial keratoplasty (DMEK). METHODS: A comprehensive database search without date restrictions was performed in PubMed and in The Cochrane Library in May, 2017. Keywords included Descemet membrane endothelial keratoplasty, corneal transplantation, graft, harvest, dissection, preparation, endothelial cell, and endothelial cell density. Articles aiming to describe or evaluate a technique for DMEK graft preparation were considered eligible and were included in this review...
October 5, 2017: Cornea
https://www.readbyqxmd.com/read/28982949/the-existence-of-dead-cells-in-donor-corneal-endothelium-preserved-with-storage-media
#10
Koji Kitazawa, Tsutomu Inatomi, Hidetoshi Tanioka, Satoshi Kawasaki, Hiroko Nakagawa, Osamu Hieda, Hideki Fukuoka, Naoki Okumura, Noriko Koizumi, Bernie Iliakis, Chie Sotozono, Shigeru Kinoshita
AIM: To investigate the viability of donor corneal endothelial cells (CECs) preserved in storage media by histological examination. METHODS: Twenty-eight donor corneas were obtained from SightLife Eye Bank (Seattle, Washington), and redundant peripheral portions of those corneas were used for histological examination after removal of the centre corneal graft for transplantation. To assess cell viability in the corneal endothelium, biostaining experiments were performed using propidium iodide, calcein-AM, Hoechst 33 342, annexin V, anti-vimentin antibody and toluidine blue...
October 5, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28973097/association-between-fungal-contamination-and-eye-bank-prepared-endothelial-keratoplasty-tissue-temperature-dependent-risk-factors-and-antifungal-supplementation-of-optisol-gentamicin-and-streptomycin
#11
Kimberly M Brothers, Robert M Q Shanks, Susan Hurlbert, Regis P Kowalski, Elmer Y Tu
Importance: Fungal contamination and infection from donor tissues processed for endothelial keratoplasty is a growing concern, prompting analysis of donor tissues after processing. Objective: To determine whether eyebank-processed endothelial keratoplasty tissue is at higher risk of contamination than unprocessed tissue and to model eyebank processing with regard to room temperature exposure on Candida growth in optisol-gentamicin and streptomycin (GS) with and without antifungal supplementation...
November 1, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28968293/standardizing-descemet-membrane-endothelial-keratoplasty-graft-preparation-method-in-the-eye-bank-experience-of-527-descemet-membrane-endothelial-keratoplasty-tissues
#12
Mohit Parekh, Mattia Baruzzo, Elisa Favaro, Davide Borroni, Stefano Ferrari, Diego Ponzin, Alessandro Ruzza
PURPOSE: To share the experience and provide a standardized protocol for Descemet membrane endothelial keratoplasty (DMEK) graft preparation. METHODS: A retrospective study based on 527 prestripped DMEK tissues that were prepared between 2014 and 2017. The experience of using different instruments and techniques has been described, and a standardized technique for preparing DMEK grafts has been identified. The tissues in general were prepared by superficially tapping the endothelial side with a Moria trephine (9...
December 2017: Cornea
https://www.readbyqxmd.com/read/28953826/reflecting-on-the-humanities-related-to-experiences-of-illness-with-a-creative-exploration-of-metaphoric-spaces
#13
Mohamud A Verjee
Every patient has a story to tell, and every experienced physician has a bank of stories to recall. A patient's visit is not chance but a search for a cure, amelioration of state, advice, guidance, a prescription, or for seeking reassurance, comfort, and in some circumstances, permission to "be well". From the simplest tale to the most complex, narratives abound. Sometimes, the most intimate information shared with the physician confidante, go dark and deep, with a yearning to "tell all" after a period of suppression...
September 2017: Psychiatria Danubina
https://www.readbyqxmd.com/read/28923613/demographic-characteristics-of-voluntary-donors-registered-in-beijing-tongren-hospital-eye-bank-of-china-a-retrospective-study-from-2007-to-2016
#14
Y Liu, Y N Zhang, Y Liu, J Zhang, A P Li, Q F Liang, Z Q Pan
BACKGROUND: Lack of willingness to pledge eyes among the general population is the main cause for the shortage of cornea tissue in China. A few studies have implied that general-population adults with specific demographics showed more willingness to donate their eyes. METHODS: In this study, we analyzed the demographic characteristics of 918 voluntary donors registered in Beijing Tongren Hospital Eye Bank in the past 10 years for possible predictors that might help us to identify potential donors in Beijing and increase the donation rate...
October 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28900769/interface-scopulariopsis-gracilis-fungal-keratitis-following-descemet-s-stripping-automated-endothelial-keratoplasty-dsaek-with-a-contaminated-graft
#15
Craig Wilde, Marco Messina, Tara Moshiri, Susan E Snape, Senthil Maharajan
PURPOSE: To report for the first time a case of interface Scopulariopsis gracilis fungal keratitis following Descemet's stripping automated endothelial keratoplasty (DSAEK) with a contaminated graft. METHODS: A 57-year-old man with bilateral keratoconus and previous bilateral penetrating keratoplasties (PK) developed graft failure in association with marked corneal ectasia. He underwent a successful DSAEK. Unfortunately, a contaminated graft was transplanted and the following morning we were contacted by the eye bank to inform us a slow-growing fungus had been detected in the culture plates inoculated with dextran solution used to store the issued corneoscleral button...
September 12, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28890079/the-effect-of-chronic-pulmonary-disease-and-mechanical-ventilation-on-corneal-donor-endothelial-cell-density-and-transplant-suitability
#16
Jordan A Margo, Martha F Whiting, Clayton H Brown, Caroline K Hoover, Wuqaas M Munir
PURPOSE: To determine how chronic obstructive pulmonary disease (COPD) and mechanical ventilation time affect corneal donor endothelial cell density (ECD) and transplant suitability. DESIGN: Retrospective cohort study. METHODS: Setting: Institutional. STUDY POPULATION: Total of 39 679 cornea donor eyes from SightLife Eye Bank between 2012 and 2016. Demographics, death-to-preservation time, ECD, lens status, medical history, time on mechanical ventilation, and suitability for transplantation were included...
November 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28873283/in-vivo-like-culture-conditions-in-a-bioreactor-facilitate-improved-tissue-quality-in-corneal-storage
#17
Richard Schmid, Ioana-Sandra Tarau, Angela Rossi, Stefan Leonhardt, Thomas Schwarz, Sebastian Schuerlein, Christian Lotz, Jan Hansmann
The cornea is the most-transplanted tissue worldwide. However, the availability and quality of grafts are limited due to the current methods of corneal storage. In this study, a dynamic bioreactor system is employed to enable the control of intraocular pressure and the culture at the air-liquid interface. Thereby, in vivo-like storage conditions are achieved. Different media combinations for endothelium and epithelium are tested in standard and dynamic conditions to enhance the viability of the tissue. In contrast to culture conditions used in eye banks, the combination of the bioreactor and biochrom medium 1 allows to preserve the corneal endothelium and the epithelium...
September 5, 2017: Biotechnology Journal
https://www.readbyqxmd.com/read/28837528/minimizing-graft-preparation-failure-in-descemet-membrane-endothelial-keratoplasty
#18
Eitan Livny, Esther A Groeneveld-van Beek, Jessica T Lie, Kristin M Mangundap, Marieke Bruinsma, Rénuka S Birbal, Jacqueline van der Wees, Gerrit R J Melles
PURPOSE: To report the failure rate of 2 graft preparation techniques for Descemet membrane endothelial keratoplasty (DMEK) and to evaluate how to minimize graft preparation failure. METHODS: Retrospective, nonrandomized study at an eye bank specialized in graft preparation for lamellar keratoplasty. For 1416 donor corneas, the DMEK graft preparation failure rate was evaluated for 2 different techniques, technique I: "Standardized traditional technique" (n = 341) and technique II: "Standardized no-touch technique" (n = 933), and for grafts that were converted from technique II to technique I during preparation (n = 142)...
December 2017: Cornea
https://www.readbyqxmd.com/read/28834816/donor-derived-conjunctival-limbal-melanoma-after-a-keratolimbal-allograft
#19
Lorena Sepsakos, Albert Y Cheung, Jeffrey A Nerad, Gautham Mogilishetty, Edward J Holland
PURPOSE: To report a single case of donor-derived conjunctival-limbal melanoma that occurred after a keratolimbal allograft (KLAL). METHODS: Case report and literature review. RESULTS: A 56-year-old white woman with a history of bilateral limbal stem cell deficiency developed a donor-related melanoma after a KLAL. Three months after undergoing an uncomplicated KLAL, the patient presented with hemorrhagic nodules within her conjunctiva and transplanted tissue...
August 22, 2017: Cornea
https://www.readbyqxmd.com/read/28809618/corneal-donations-in-south-africa-a-15-year-review
#20
Nicholas J York, Christopher Tinley
BACKGROUND: Corneal pathology is one of the leading causes of preventable blindness in South Africa (SA). A corneal transplant can restore or significantly improve vision in most cases. However, in SA there is a gross shortage of corneal tissue available to ophthalmologists. Little has been published describing the magnitude of the problem. OBJECTIVES: To describe trends in the number of corneal donors per year in SA, the number of corneal transplants performed each year, the origin of donors, the allocation of corneas to the public or private sector, and the demographics of donors...
July 28, 2017: South African Medical Journal, Suid-Afrikaanse Tydskrif Vir Geneeskunde
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