Browsing by Author "Rojas, V."
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- ItemDevelopment and validation of the MEDUC-RX32 questionnaire, to evaluate teachers of postgraduate radiology programs(2014) Huete, Isidro; Julio, R.; Rojas, V.; Herrera Riquelme, Cristian Alberto; Padilla Pérez, Oslando; Solís, Nancy; Pizarro Rojas, Margarita Alicia; Etcheberry, L.; Sarfatis Feige, Alberto; Pérez, G.; Delfino, Alejandro; Muñoz, E.; Rivera, H.; Bitrán Carreño, Marcela; Riquelme, A.
- ItemEducational environment perception in physiotherapy undergraduate students: mixed methodology(2020) Fuenzalida Saavedra, Bárbara; Pizarro Rojas, Margarita Alicia; Fuentes Cimma, Javiera Carolina; San Martín Mohr, Cristóbal; Rojas, V.; López Fuenzalida, Antonio Eduardo; Padilla Pérez, Oslando; Riquelme Pérez, Arnoldo
- ItemEffect of substrate depth and roof layers on green roof temperature and water requirements in a semi-arid climate(2016) Reyes, R.; Bustamante Gómez, Waldo; Gironás León, Jorge Alfredo; Pastén González, Pablo Arturo; Rojas, V.; Suárez Poch, Francisco Ignacio; Vera Araya, Sergio Eduardo; Victorero Castaño, Felipe Andrés; Bonilla Meléndez, Carlos Alberto; CEDEUS (Chile)
- ItemEvaluation of Radiology Teachers' Performance and Identification of the "Best Teachers" in a Residency Program: Mixed Methodology and Pilot Study of the MEDUC-RX32 Questionnaire(2016) Huete, Isidro; Julio, R.; Rojas, V.; Herrera Riquelme, Cristian Alberto; Padilla Pérez, Oslando; Solis, N.; Pizarro, M.; Etcheberry, L.; Sarfatis Feige, Alberto; Perez, G.; Diaz, L.; Delfino, Alejandro; Munoz, E.; Rivera, H.; Parra, D.; Bitrán Carreño, Marcela; Riquelme, A.
- ItemHigh prevalence of undiagnosed primary hyperaldosteronism among patients with essential hypertension(1999) Mosso, L.; Fardella, C.; Montero, J.; Rojas, P.; Sanchez, O.; Rojas, V.; Rojas, A.; Huete, A.; Soto, J.; Foradori, A.; NCD Risk Factor Collaboration (NCD-RisC)Background: Classically, primary hyperaldosteronism was diagnosed in no more than 1% of patients with hypertension, when hypokalemia was used as the screening test. However, numerous patients with primary hyperaldosteronism do not have hypokalemia nod the disease remains undiagnosed. Aim: To assess the prevalence of normokalemic primary hyperaldosteronism among patients classified as having essential hypertension. Patients and methods: One hundred hypertensive patients with a blood pressure over 145/95 were studied. Plasma aldosterone and plasma renin activity were measured in all. A primary hyperaldosteronism was diagnosed when high aldosterone levels (over 16 ng/dl) and low plasma renin activity (below 0.5 ng/ml/h) coexisted in two blood tests of the aldosterone/plasma renin activity ratio was over 50. A probable primary hyperaldosteronism was diagnosed whet? the ratio was between 25 and 50 and these patients were subjected to a Fludrocortisone test to confirm the diagnosis. A dexametasone suppression test was done to discard glucocorticoid remediable aldosteronism. An adrenal TAC scan was done to all patients with primary hyperaldosteronism. Results: A diagnosis of primary hyperaldosteronism was reached in ten patients. Seven had elevated aldosterone and low plasma renin activity. In three the diagnosis was confirmed with the fludrocortisone test. All ten patients had normal serum potassium levels. Dexametasone suppression test was positive in three patients that normalized their blood pressure levels. Adrenal TAC scans showed an adenoma in one patient and hyperplasia in another. Conclusions: Primary hyperaldosteronism is more frequent than previously thought, it is overlooked when hypokalemia is used as the screening test and it can only be diagnosed measuring plasma aldosterone and renin activity.
- ItemImpact of the properties of a green roof substrate on its hydraulic and thermal behavior(2015) Sandoval, V.; Suárez Poch, Francisco Ignacio; Vera Araya, Sergio Eduardo; Pinto, C.; Victorero Castaño, Felipe Andrés; Bonilla Meléndez, Carlos Alberto; Gironás León, Jorge Alfredo; Bustamante Gómez, Waldo; Rojas, V.; Pastén González, Pablo Arturo; CEDEUS (Chile)
- ItemNiveles de vitamina D en adultos mayores saludables chilenos y su relación con desempeño funcional. Vitamin D levels in older healthy Chilean adults and their association with functional performance(2014) Carrasco Gorman, Marcela; Domínguez de Landa, María Angélica; Martinez, G.; Ihle, S.; Rojas, V.; Foradori, Arnaldo; Marín Larraín, Pedro Paulo
- ItemSilicon-containing oligomeric poly(imido-ester-amides) obtained from asymmetric dicarboxylic acids. Synthesis, characterization and thermal analysis.(2017) Tagle Domínguez, Luis Hernán; Terraza Inostroza, Claudio; Tundidor Camba, Alain; Rojas, V.