نتایج جستجو برای: hemoglobin concentration
تعداد نتایج: 431012 فیلتر نتایج به سال:
Hydroxyurea and higher hemoglobin F improve the clinical course and survival in sickle cell disease, but their roles in protecting from pulmonary hypertension are not clear. We studied 399 children and adolescents with sickle cell disease at steady state; 38% were being treated with hydroxyurea. Patients on hydroxyurea had higher hemoglobin concentration and lower values for a hemolytic compone...
Commonly obtained clear plasma or serum samples contain small amounts of hemoglobin derived from either naturally occurring processes or from collection trauma. Using the recently evaluated, highly specific, sensitive, quantitative procedure of first derivative spectroscopy, the hemoglobin concentration in nine types of vacuum collection containers was measured, including three types of anticoa...
Critically ill patients commonly show a decrease in hemoglobin concentration during their stay in the intensive care unit. The purpose of the present study was to evaluate whether nonbleeding patients with acute coronary syndrome (ACS) show a similar decrease of hemoglobin, and thereby furnish reference values and analyze possible mechanisms. In this retrospective, descriptive study, the charts...
Alpha thalassemia (α-thal) is relatively common worldwide. Most carriers are defective in either one or two alpha globin genes out of four functional ones, with deletions being more common than point mutations. The hematologic features are very important for the selection of the appropriate molecular tests while determining the genotype. The aim of this study was to compare hematologic features...
Because the refractive index of hemoglobin in the visible range is sensitive to the hemoglobin concentration, optical investigations of hemoglobin are important for medical diagnostics and treatment. Direct measurements of the refractive index are, however, challenging; few such measurements have previously been reported, especially in a wide wavelength range. We directly measured the refractiv...
BACKGROUND The efficacy of using diffuse near infrared spectroscopy (NIRS) in predicting wound healing in diabetic foot ulcers was demonstrated by conducting a pilot human study. METHOD Sixteen chronic diabetic wounds were followed and assessed for subsurface oxyhemoglobin concentration using the NIRS device. Weekly measurements were conducted until there was wound closure, limb amputation, o...
OBJECTIVE Myeloid neoplasms are heterogeneous diseases that are more incident in the elderly. The goals of this study were to aggregate a geriatric approach to the patient assessment, to show the impact of gender, age, hemoglobin concentration and comorbidities on the functionality of elderly with myeloid neoplasms and to better understand how the instruments of functional assessment work accor...
Serum erythropoietin (ESF) levels and the numbers of marrow and blood erythroid progenitors (CFU-Es) of patients with chronic myeloproliferative disorders (CMPD) were studied simultaneously. The numbers of marrow and blood CFU-Es per 1 x 10(5) cells were normal or greatly elevated. There was an inverse correlation between the hemoglobin concentration and the serum ESF level in patients with chr...
Introduction: In the laboratory, the time required to measure body-fluids components is usually one to two working days. The laboratory methods require sample preparation and instrument cleaning after the sample reading. In emergency scenarios, the physician does not have much time to make a clinical decision. To solve these challenges, a portable system for measuring the body fluids components...
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