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Twenty-three multiprogrammable pacemakers and four implantable cardioverter defibrillators (ICDs) containing either complementary metal-oxide semiconductor (CMOS) or CMOS/Bipolar integrated circuit (IC) technology were exposed to 6-MV photon and 18-MeV electron radiation at various dose levels. Of the 17 pacemakers exposed to photon radiation eight failed… (More)
Allogeneic stem cell transplantation remains the best option for young patients with SAA. With genetically identical twin as an ideal donor, the majority of SAA patients require appropriate immunosuppression before and after stem cell transplantation to obtain long-term hematopoietic reconstitution. Alkylating agents, used during conditioning, are… (More)
OBJECTIVES Liver disease (LD) often results in coagulation abnormalities that may predispose to more severe epistaxis. The purpose of this analysis was to examine characteristics of patients hospitalized for epistaxis with LD and explore the impact of LD on patient outcomes. METHODS The 2002 to 2013 National Inpatient Sample was queried for cases with a… (More)
The technique of ophthalmometry at various sites of the central corneal area, using several ophthalmometric systems, is described. These measurements have revealed that only the corneal center is characterized by a spherical shape with a diameter of about 4 mm.
The paper concerns the studies into astigmatism development after penetrating wounds of the cornea depending on subjective and objective surgical factors. The attempt is made to design a set of measures aimed at the prevention of refractive complications upon the treatment of penetrating wounds of the cornea.
Anterior dosed keratotomy has been tried for the correction of posttraumatic 'cicatricial' astigmatism. Virtually no data on the surgical treatment of 'cicatricial' astigmatism, particularly high, is available, whereas the presence of this condition is a contraindication to traditional keratotomy. The authors' data show good prospects of nontraditional… (More)
A 15 degree wedge inserted half way into the radiation field can be used effectively as a tissue compensator, in some cases reducing dose inhomogeneity by as much as 25%. The 15 degrees half wedge dosimetry and its application to a specific therapy technique is discussed in this article.