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Tanveer Ajum Chaudhry, Salman Naveed Sadiq, Zubaida Sirang, Maheen Akhtar Syed, Mustafa Kamal, Khabir Ahmad
The retrospective study was conducted to determine the indications and outomes of penetrating keratoplasty(PKP) in a tertiary care setting in Pakistan. All eyes that had undergone PKP between January 2005 and December 2014 at the Aga Khan University Hospital, Karachi, were included.Data were collected on the indications of PKP, graft survival (graft clarity at final follow-up), andbest corrected visual acuity (BCVA).Kaplan-Meier\'s method was usedto analyse graft survival.Out of 437 eyes, 383(87%) were for visual purpose...
October 2016: JPMA. the Journal of the Pakistan Medical Association
Takashi Ono, Sosuke Ishiyama, Takeshi Hayashidera, Yosai Mori, Ryohei Nejima, Kazunori Miyata, Shiro Amano
PURPOSE: To evaluate the long-term outcomes of penetrating keratoplasty (PKP) according to the corneal disease diagnosis and the number of PKP procedures performed. METHODS: Five-hundred-and-nine eyes from 403 patients who underwent PKP at Miyata Eye Hospital in Japan from 1998 through 2014, were included in this study. Medical charts were retrospectively examined to ascertain the corneal disease diagnosis and the period of graft survival. Graft survival rates were compared among various corneal disease diagnoses and among the number of PKP procedures performed...
November 24, 2016: Japanese Journal of Ophthalmology
Shaofeng Yang, Yanan Liu, Huilin Yang, Jun Zou
BACKGROUND: To analyze risk factors and correlation of secondary adjacent vertebral compression fracture in percutaneous kyphoplasty. MATERIALS AND METHODS: A total of 139 patients underwent PKP in our hospital for osteoporotic vertebral compression fracture between January 2013 and December 2014 and had completed follow-up data more than one year were selected randomly. Participants were divided into two groups in accordance with whether adjacent vertebral compression fracture occurred...
October 21, 2016: International Journal of Surgery
Shaohui Liu, Peter Veldman
Endothelial keratoplasty (EK) has replaced penetrating keratoplasty (PKP) as the preferred surgical therapy for corneal endothelial dysfunction. However, recent nationwide corneal graft registry data showed few advantages to EK relative to PKP with respect to graft survival and visual outcomes. This article compares the published outcomes and complications of EK to those of PKP. EK demonstrates superior spectacle corrected visual outcomes, fast recovery, less graft rejection, and higher patient satisfaction, particularly in studies performed by high-volume surgeons/centers...
October 18, 2016: Seminars in Ophthalmology
Yi-Ju Ho, Hung-Chi Chen, Shirley H L Chang, Lung-Kung Yeh, David Hui-Kang Ma
BACKGROUND: Sclerocornea, a congenital corneal pathology characterized by bilateral scleralization of the cornea, which can be found in few cases with posterior fossa malformationshemangiomas-arterial anomalies-cardiac defects-eye abnormalities-sternal cleft and supraumbilical raphe (PHACES) syndrome. Presence of vascularization in peripheral cornea and smaller diameter of recipient cornea correlate to poor outcome of penetrating keratoplasty (PKP) in sclerocornea. Here we report a method to preserve limbus during PKP for small, irregular, and scleralized cornea...
October 2016: Medicine (Baltimore)
Xin He, Hui Li, YiBin Meng, YunFei Huang, Ding-Jun Hao, QiNing Wu, JiJun Liu
BACKGROUND: Percutaneous kyphoplasty (PKP) could achieve rapid pain relief for older patients with osteoporotic vertebral compression fractures (OVCFs). Bone cement in PKP was the key factor keeping the stabilization of the vertebral body. However, the same amount of cement can distribute differently in a vertebral body and can thereby result in different surgery outcomes. Therefore, the volume and distribution of bone cement should be considered as 2 distinct variables to evaluate the effectiveness of PKP...
September 2016: Pain Physician
Jun Yamada, Morio Ueno, Munetoyo Toda, Katsuhiko Shinomiya, Chie Sotozono, Shigeru Kinoshita, Junji Hamuro
PURPOSE: We evaluated the allogeneic response after corneal endothelial cell transplantation in the anterior chamber (AC) in a new mouse model by examining the acquisition of a delayed-type hypersensitivity (DTH) response, induction of allogeneic AC-associated immune deviation (ACAID), and acquisition of delayed transplantation tolerance. METHOD: The corneal eyecups from C57BL/6 mice were prepared. The epithelial layer was detached with EDTA solution and treated with trypsin to release mouse-derived primary corneal endothelial cells (mpCECs)...
September 1, 2016: Investigative Ophthalmology & Visual Science
Abdulrahman S Khairallah
OBJECTIVES: To report the outcomes of penetrating keratoplasty (PKP) surgeries in eyes with failed PKP. METHODS: This was a retrospective, non-comparative, descriptive case series. Thirty eyes of 30 patients with failed PKP comprised our study group, they were reviewed from January 2007 to December 2012 at the King Khaled Eye Specialist Hospital, Riyadh, Kingdom of Saudi Arabia. Data were collected on best corrected visual acuity before and after one week, one month, 3 months, 6 months, one year, and 2 years following PKP...
September 2016: Saudi Medical Journal
Hong-Wei Zhou, Li-Xin Xie
BACKGROUND: The endothelium should be carefully evaluated when choosing a surgical technique for cataract removal. Therefore, we aimed to study the effects of different cataract surgery techniques on endothelial cell loss in transplanted corneal grafts. METHODS: A total of 54 patients who received complicated cataract surgery in post-penetrating keratoplasty (PKP) eyes at the Shandong Eye Institute between February 2001 and June 2014 were included, and clinical records were reviewed...
2016: Chinese Medical Journal
Sara N Stahley, Emily I Bartle, Claire E Atkinson, Andrew P Kowalczyk, Alexa L Mattheyses
Desmosomes are macromolecular junctions responsible for providing strong cell-cell adhesion. Because of their size and molecular complexity, the precise ultrastructural organization of desmosomes is challenging to study. Here, we used direct stochastic optical reconstruction microscopy (dSTORM) to resolve individual plaque pairs for inner and outer dense plaque proteins. Analysis methods based on desmosomal mirror symmetry were developed to measure plaque-to-plaque distances and create an integrated map. We quantified the organization of desmoglein 3, plakoglobin and desmoplakin (N-terminal, rod and C-terminal domains) in primary human keratinocytes...
August 1, 2016: Journal of Cell Science
Wimolwan Tangpagasit, Thanichaya Reanpinyawat
OBJECTIVE: To determine the eye integrity preservation after urgent penetrating keratoplasty (PKP) for corneal ulcer at Thammasat University Hospital. MATERIAL AND METHOD: A retrospective review of patients who underwent urgent PKP between September 2005 and January 2015 was conducted. Demographic data, predisposing factors, organisms, indication for surgery, time of urgent corneal graft registry, and preservation rate of eye integrity were analyzed. RESULTS: Fifty-five patients (55 eyes) registered for urgent corneal graft registry from eye bank and 22 eyes underwent urgent PKP There were 14 males (63...
January 2016: Journal of the Medical Association of Thailand, Chotmaihet Thangphaet
Tamer H Massoud, Osama Ibrahim, Kitty Shehata, Moones F Abdalla
Purpose. To evaluate the visual and refractive outcomes after small incision lenticule extraction (SMILE) for treating myopia and myopic astigmatism after penetrating keratoplasty (PKP). Design. Case-series. Methods. Ten eyes of 10 patients with previous PKP and residual myopic astigmatism for whom pentacam imaging and thickness measurements were acceptable for laser vision correction. Manifest refraction (MR), uncorrected distance visual acuity (UDVA), and corrected distance visual acuity (CDVA) were obtained preoperatively and one day, one week, and one, 3, and 6 months postoperatively...
2016: Journal of Ophthalmology
Alfred Ndahi Jones, John Bridgeman
The growth, breakage and re-growth of flocs formed using crude and purified seed extracts of Okra (OK), Sabdariffa (SB) and Kenaf (KE) as coagulants and coagulant aids was assessed. The results showed floc size increased from 300 μm when aluminium sulphate (AS) was used as a coagulant to between 696 μm and 722 μm with the addition of 50 mg/l of OK, KE and SB crude samples as coagulant aids. Similarly, an increase in floc size was observed when each of the purified proteins was used as coagulant aid at doses of between 0...
October 15, 2016: Water Research
Remzi Karadag, Huseyin Bayramlar, Amir A Azari, Christopher J Rapuano
PURPOSE: To evaluate the results of trocar-assisted, sutureless, scleral-fixated (SSF) intraocular lens (IOL) implantation combined with penetrating keratoplasty (PKP). METHODS: This study comprised 4 eyes (4 patients) undergoing trocar-assisted SSF-IOL implantation during PKP. The combined technique was performed in 3 eyes of 3 patients with bullous keratopathy and in 1 eye with central corneal opacity. Two eyes had anterior chamber IOL implants, and 2 were aphakic...
September 2016: Cornea
Amir Norouzpour, Siamak Zarei-Ghanavati
PURPOSE: To report hydrophilic acylic intraocular lens (IOL) opacification after Descemet Stripping Automated Endothelial Keratoplasty (DSAEK) in an eye with multiple prior intraocular surgeries and iatrogenic aniridia. CASE REPORT: A 34-year-old woman with history of penetrating keratoplasty (PKP) for advanced keratoconus and subsequent Urrets-Zavalia Syndrome (UZS) underwent phacoemulsification and hydrophilic acrylic IOL implantation for her cataract. In order to control post-PKP glaucoma, multiple glaucoma surgeries including two glaucoma drainage implants were performed...
April 2016: Journal of Ophthalmic & Vision Research
Mozhgan Rezaei Kanavi, Mohammad Ali Javadi, Tahmineh Motevasseli, Tahereh Chamani, Mahnoush Rezaei Kanavi, Bahareh Kheiri, Sare Safi
PURPOSE: To report changing trends in indications and techniques of corneal transplantation in Iran. METHODS: We reviewed eye bank records of 47,129 patients who had undergone corneal transplantation between 2006 and 2013 at different eye centers throughout Iran. RESULTS: The most common indication for corneal transplantation was keratoconus (KCN, n = 21,350 eyes, 45.3%), followed by bullous keratopathy (BK, n = 8,566 eyes, 18.2%), corneal opacity and scar (COS, n = 7,158 eyes, 15...
April 2016: Journal of Ophthalmic & Vision Research
Tomoyuki Inoue, Yuko Hara, Takeshi Kobayashi, Xiaodong Zheng, Takashi Suzuki, Atsushi Shiraishi, Yuichi Ohashi
PURPOSE: To describe a characteristic form of the corona sign and its clinical relevance to the degree of corneal endothelial decompensation and investigate the underlying mechanism using a rabbit model. METHODS: These observational cases include 31 patients undergoing penetrating keratoplasty (PKP) and 15 patients undergoing Descemet stripping automated endothelial keratoplasty (DSAEK) with special attention to the circumferentially developed corneal epithelial edema...
September 2016: Japanese Journal of Ophthalmology
Kai Sun, Yang Liu, Hao Peng, Jun-Feng Tan, Mi Zhang, Xian-Nian Zheng, Fang-Zhou Chen, Ming-Hui Li
The clinical effects of two different methods-high-viscosity cement percutaneous vertebroplasty (PVP) and low-viscosity cement percutaneous kyphoplasty (PKP) in the treatment of osteoporotic vertebral compression fractures (OVCFs) were investigated. From June 2010 to August 2013, 98 cases of OVCFs were included in our study. Forty-six patients underwent high-viscosity PVP and 52 patients underwent low-viscosity PKP. The occurrence of cement leakage was observed. Pain relief and functional activity were evaluated using the Visual Analog Scale (VAS) and Oswestry Disability Index (ODI), respectively...
June 2016: Journal of Huazhong University of Science and Technology. Medical Sciences
Yan Gao, Nan Chen, Xiao-Guang Dong, Gong-Qiang Yuan, Bin Yu, Li-Xin Xie
AIM: To report the fungal organisms, clinical features, surgical treatment strategies, and outcomes of patients with culture-proven exogenous fungal endophthalmitis (EFE) secondary to keratitis, and evaluate the role of surgery in the treatment. METHODS: The clinical records of 27 patients (27 eyes) with culture-proven EFE resulting from fungal keratitis treated at Shandong Eye Institute from January 2007 to January 2015 were retrospectively reviewed. Information about fungal culture results, clinical features, surgical procedures, and final visual acuity was obtained...
2016: International Journal of Ophthalmology
Junjie Niu, Dawei Song, Haifei Zhou, Qian Meng, Bin Meng, Huilin Yang
STUDY DESIGN: A retrospective comparative study. OBJECTIVE: To compare the characteristics of osteoporotic vertebral fractures (OVFs) with intravertebral fluid (IVF) and those with intravertebral air (IVA), and the efficacy of percutaneous balloon kyphoplasty (PKP) in treating OVFs with these two different intravertebral components. SUMMARY OF BACKGROUND DATA: Previous studies have focused on the efficacy of percutaneous vertebroplasty (PVP) and PKP in treating OVFs with intravertebral cleft...
June 28, 2016: Clinical Spine Surgery
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