Nephrol News Issues
August 2010
In order to supplement post-market surveillance data on the HeRO vascular access device, a non-scientific customer survey was conducted to obtain quantitative data from dialysis providers caring for patients implanted with the device. Dialysis nurses involved in the care of HeRO patients were contacted in order to obtain post-implant device performance information for 10% of patients implanted with the device at the time of the survey. Thirty-eight dialysis units with a total of 65 HeRO patients participated in the survey.
View Article and Find Full Text PDFPurpose: To assess the ability of positron emission tomography (PET) with 2-[fluorine-18]fluoro-2-deoxy-D-glucose (FDG) to allow differentiation of benign from malignant intraosseous lesions.
Materials And Methods: Twenty patients with strictly intraosseous lesions (five benign and 15 malignant [three primary and 12 metastatic]) were studied with FDG PET. The final diagnosis was confirmed with histopathologic examination in all patients.
Unlabelled: The purpose of this study was to assess the results of PET with 16 alpha-[18F]fluoro-17 beta-estradiol (FES) and [18F]fluoro-2-deoxy-D-glucose (FDG) to validate the concordance between tumor estrogen-receptor (ER) status as determined by FES-PET and in vitro assays and to assess the relationship between tumor metabolic activity determined by FDG-PET and tumor ER status, both of which may provide information about tumor aggressiveness and prognosis.
Methods: We studied 32 patients with primary breast masses and 21 patients with clinical or radiological evidence of recurrent/metastatic breast carcinoma. A diagnosis of breast carcinoma was subsequently proven in 43 patients (24 primary, 15 metastatic and 4 recurrent tumors).
Positron emission tomography (PET) with fluorine-18 fluorodeoxyglucose (FDG) was performed in 19 patients with brain metastases from non-central nervous system (CNS) neoplasms and one patient with a primary CNS lymphoma. Various histopathologic types were represented by the primary neoplasms in the patients with metastases. Only 21 of the 31 lesions (68%) were detected with FDG PET as discrete, metabolically active foci (relative to surrounding structures).
View Article and Find Full Text PDFPositron emission tomographic measurements of regional blood flow were used to assess local neuronal activity in patients with panic disorder and in normal control subjects before and during the infusion of sodium lactate. A new technique for the analysis of positron emission tomographic data was employed to identify significant changes in regional blood flow associated with lactate infusion in the panicking patients, nonpanicking patients, and controls. Lactate-induced panic was associated with significant blood flow increases bilaterally in the temporal poles; bilaterally in insular cortex, claustrum, or lateral putamen; bilaterally in or near the superior colliculus; and in or near the left anterior cerebellar vermis.
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