نتایج جستجو برای: keratoprosthesis kps
تعداد نتایج: 1282 فیلتر نتایج به سال:
Objectives Determine factors affecting survival rates, benefits and complications of patients with obstructive esophageal cancer treated with photodynamic therapy (PDT). Methods From 1982 to January 1998, we used PDT to treat 140 patients with obstructive adeno or squamous carcinoma and evaluated survival up to November 1998. All patients had failed, refused, or were ineligible for surgery, ion...
We describe a technique for femtosecond laser-assisted preparation of donor tissue for Boston type 1 keratoprosthesis to provide accurate double punching of the donor tissue for optimized alignment in the visual axis. The technique was reproducibly performed in four donor corneas mounted in an artificial anterior chamber. This technique can provide optically centered donor tissue with smooth tr...
This paper provides new combinatorial bounds and characterizations of authentica-tion codes (A-codes) and key predistribution schemes (KPS). We rst prove a new lower bound on the number of keys in an A-code without secrecy, which can be thought of as a generalization of the classical Rao bound for orthogonal arrays. We also prove a new lower bound on the number of keys in a general A-code, whic...
Currently available keratoprosthesis models (nonbiological corneal substitutes) have a less than 75% graft survival rate at 2 years. We aimed at developing a model for keratoprosthesis based on the use of poly(ethyl acrylate) (PEA)-based copolymers, extracellular matrix-protein coating and colonization with adipose-derived mesenchymal stem cells. Human adipose tissue derived mesenchymal stem ce...
BACKGROUND Brain metastases significantly affect morbidity and mortality rates for patients with metastatic breast cancer. Treatment for brain metastases lengthens survival, and options such as stereotactic radiosurgery (SRS) can increase survival to 12 months or longer. This study retrospectively analyzes the prognostic factors for overall survival (OS) for patients with one or multiple brain ...
OBJECTIVE At present, there is no consensus regarding the standard treatment for glioblastoma (GBM) in elderly patients with impaired Karnofsky performance status (KPS) scores. This study aimed to determine the effects of temozolomide (TMZ) versus best supportive care (BSC) in this population. MATERIALS AND METHODS We conducted a retrospective observational study of patients aged ≥65 years wi...
e19727 Background: HARE with Y-90 SIR-Spheres is a treatment (Rx) option for NET patients (pts); however, survival statistics, biochemical responses (BR) and factors influencing outcomes are lacking. The objectives of this study are: 1) to determine whether age (G ≥ 60yrs vs Y< 60yrs) influences overall survival (OS) and progression free survival (PFS); 2) to calculate biochemical response (BR)...
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