Browsing by Author "Guevara, Sergio"

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    Anticuerpos antipéptico citruliano en pacientes con artritis reumatoide. Hospital Vicente Corral Moscoso, Facultad de Ciencias Médicas. Cuenca. 2008
    (Universidad de Cuenca. Facultad de Ciencias Médicas, 2012-12) Pacheco, Esteban; Jara, Javier; Pacheco, María Verónica; Guevara, Sergio
    Objective: To determine the sensibility and specificity of the anti-péptico citruliano antibodies versus rheumatoid factor in the diagnosis of patients with rheumatoid arthritis in the Vicente Corral Moscoso Hospital Methods: Two groups, 30 patients with rheuma - toid arthritis according to American College of Rheumatology criteria and 30 control patients were established. They assisted the Vicente Corral Moscoso Hospital ′s Rheumatologic Department from January to May 2008. The laboratory tests were carried out and the results were confronted. The statistic analysis included specificity, sensibility, negative and positive predictor values. Results: The determination of anti-citrulline anti - bodies ELISA second generation show a 53,3% of sensibility, 83,3% of specificity, positive predictor value of 76,19 % and a negative predictor value of 64,10%; to third generation the sensibility was 50%, specificity 86,67%, positive predictor value of 78.95% and a negative predictor value of 63,41 % and the Rheumatoid Factor IgM sen - sibility 53,3%, specificity 70%, positive predictor value 64% and negative predictor value 60%. Conclusion: anti-citrulline antibodies ELISA have a better specificity than Rheumatoid Factor; the sensibility was the same in both tests.
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    Factores de riesgo asociados a la osteoporosis posmenopáusica: estudio de casos de los Hospitales Vicente Corral y José Carrasco
    (Universidad de Cuenca, 2013-06) Guevara, Sergio; Feicán, Astrid; Ochoa, María del Carmen; Arévalo, Carlos; Aguirre, María Eugenia
    The purpose of the study presented herein is the assessment of the statistical relation between postmenopausal osteoporosis (PO) and the following risk factors: low body mass index (BMI), low calcium diet, delayed menarche, early menopause, sedentary lifestyle and socioeconomic status. The research involved the screening of 112 postmenopausal women with osteoporosis and 112 control patients, aged 50 to 65, patients belonging respectively to the Hospitals Vicente Corral and José Carrasco, in Cuenca, Ecuador. A questionnaire addressing calcium-intake, socio-demographic, reproductive and lifestyle-related risk factors was employed previously to bone mineral density and other physical measurements using validated instruments. In addition to the calculation of the mean,