Jorge reyse D
Pontifical Catholic University of Chile
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Featured researches published by Jorge reyse D.
Revista Medica De Chile | 2010
Rodrigo Osses A; Jorge Yáñez V; Paulina Barría P; Sylvia Palacios M; Jorge Dreyse D; Orlando Díaz P; Carmen Lisboa B
Background: The six minute walking distance test (6MWD) is widely used to evaluate exercise capacity in several diseases due to its simplicity and low cost. Aim: To establish reference values for 6MWD in healthy Chilean individuals. Material and methods: We studied 175 healthy volunteers aged 20-80 years (98 women) with normal spirometry and without history of respiratory, cardiovascular or other diseases that could impair walking capacity. The test was performed twice with an interval of 30 min. Heart rate, arterial oxygen saturation (with a pulse oxymeter) and dyspnea were measured before and after the test. Results: Walking distance was 576 ± 87 m in women and 644 ± 84 m in men (p < 0.0001). For each sex, a model including age, height and weight produced 6MWD prediction equations with a coefficient of determination (R2) of 0.63 for women and 0.55 for men. Conclusions: Our results provide reference equations for 6MWD that are valid for healthy subjects between 20 and 80 years old.
Revista Medica De Chile | 2007
Rodrigo Santis B; Carmen Gloria Hidalgo C; Viviana Hayden C; Enzo Anselmo M; Jorge Rodríguez T; Fernando Cartajena de la M; Jorge Dreyse D; Rafael Torres B
BACKGROUND: In Chile, cocaine base paste (CBP) is the illegal substance that produces the highest rate of addiction. Nonetheless, a marginal number of users receive treatment each year. AIM: To compare the consumption patterns and risk behavior of CBP and cocaine hydrochloride (CH) users who do not attend rehabilitation services. MATERIAL AND METHODS: In a prospective research design, through a study methodology called Privileged Access Interview of hidden populations, 28 surveyors recruited 231 CBP users (group 1) and 236 CH users (group 2). The Risk Behavior Questionnaire was applied in four communities of Metropolitan Santiago, that have the highest prevalence of PBC and CH use. RESULTS: CBP users showed higher schools drop-out and unemployment rates. Subjects of both groups were predominantly polysubstance and polyaddicted users. The severity of addiction to CBP of group 1 was significantly higher than the severity of addiction to CH of group 2 (5.5 versus 5.1: p Language: es
Revista Chilena De Enfermedades Respiratorias | 2005
Alejandro Díaz F; Gino Fuentes L; Bernardita Couble P; Reinaldo Uribe S.M; Gesma Mercado M; Alejandra Soza G; Paulina Barría P; Jorge Dreyse D; Fernando Saldías P
RESUMEN Fundamento: Hay escasos estudios que examinen la etiologia de la neumoniaadquirida en la comunidad (NAC) en poblacion adulta chilena. Objetivo: Identifi-car la etiologia de la NAC en adultos inmunocompetentes hospitalizados. Metodo: Estudiamos, prospectiva y consecutivamente durante 16 meses, a 130 pacientes(edad promedio ± DS: 68 ± 18 anos; letalidad en el hospital: 6,2%). La evaluacionmicrobiologica incluyo cultivo de expectoracion y hemocultivos para bacterias; * Departamento de Enfermedades Respiratorias, Pontificia Universidad Catolica de Chile.** Servicio de Urgencias, Pontificia Universidad Catolica de Chile.*** Estudiantes de Medicina de tercer ano de la Pontificia Universidad Catolica de Chile.**** Estudiantes de Medicina de cuarto ano de la Pontificia Universidad Catolica de Chile. Financiamiento: Fondo de Investigacion de la Sociedad Chilena de Enfermedades Respiratorias (2002) y fondo de laDireccion de Investigacion de la Pontificia Universidad Catolica de Chile (DIPUC 2003/10E).
Revista Medica De Chile | 2005
Jorge Dreyse D; Felipe Silva D; Orlando Díaz P; Gisella Borzone T; Carmen Lisboa B
Thirty-eight stable COPD patients who accepted to participate in thestudy approved by the Ethics Committee of our institution were studied. Using a randomized double-blindplacebo-controlled study, theophylline (250 mg) or placebo was administered twice a day for 15 days inaddition to inhaled salbutamol and ipratropium bromide. Prior to and at the end of the study, patientsunderwent: a) a spirometry to evaluate changes in dynamic pulmonary hyperinflation using slow vitalcapacity (SVC) and inspiratory capacity (IC), b) the 6 min walking distance (6 MWD); and c)measurement of maximal inspiratory and expiratory pressures. Dyspnea and quality of life (QoL) wereevaluated using appropriate questionnaires.
Revista Chilena De Enfermedades Respiratorias | 2008
Jorge Dreyse D; Carmen Lisboa B; Claudio Pinto R; Fernando Saldías P; Orlando Díaz P
Resumen La prevalencia, al igual que la mortalidad de la enfermedad pulmonar obstructiva cronica(EPOC), ha aumentado en las mujeres. Esto ultimo sugiere que la enfermedad seria mas grave en elsexo femenino. El proposito de este estudio fue evaluar si existen diferencias en la gravedad segungenero en 95 pacientes (38 mujeres) con EPOC ingresados consecutivamente a un protocolo deseguimiento. Evaluamos la magnitud del tabaquismo, caracteristicas demograficas, gravedad segunVEF 1 e indice BODE y compromiso de la calidad de vida. Los resultados no demostraron diferen-cias entre hombres y mujeres en ninguno de los indices de gravedad. Sin embargo, la magnitud deltabaquismo fue inferior en las mujeres que en los hombres (35,5 ± 19,4 vs 45,7 ± 21 paquetes-ano;p = 0,02). Nuestros resultados sugieren una mayor susceptibilidad de las mujeres para desarrollarEPOC, pero no demuestran que la gravedad de la enfermedad dependa del genero. Palabras clave: EPOC, funcion pulmonar, indice BODE, genero. * Departamento de Enfermedades Respiratorias, Pontificia Universidad Catolica de Chile.** Ayudante alumno de la Escuela de Medicina, Pontificia Universidad Catolica de Chile.
Revista Medica De Chile | 2010
Arturo Morales S.; Jorge Dreyse D; Orlando Díaz P; Fernando Saldías P; Marcela Carrasco; Carmen Lisboa B
BACKGROUND Low grade systemic inflammation is commonly observed in chronic obstructive pulmonary disease (COPD). AIM To evaluate the extent of systemic inflammation in a group of ex-smokers with COPD in stable condition and its relation with pulmonary function and clinical manifestations. PATIENTS AND METHODS We studied 104 ex-smokers aged 69 ± 8 years (62 males) with mild to very severe COPD and 52 healthy non-smoker subjects aged 66 ± 11 years (13 males) as control group. High sensitivity serum C reactive protein (CRP), interleukin 6 (IL6), fibrinogen (F) and neutrophil count (Nc) were measured. Forced expiratory volume in the first minute (FEV1), inspiratory capacity (IC), arterial blood gases, six minutes walking test, dyspnea and body mass index (BMI) were measured, calculating the BODE index. Health status was assessed using the Saint George Respiratory Questionnaire (SGRQ), the chronic respiratory questionnaire (CRQ), registering the number of acute exacerbations (AE) during the previous year and inhaled steroids use. Systemic inflammation was considered present when levels of CRP or IL6 were above the percentile 95 of controls (7.98 mg/L and 3.42 pg/ml, respectively). RESULTS COPD patients had significantly higher CRP and IL6 levels than controls. Their F and Nc levels were within normal limits. Systemic inflammation was present in 56 patients, which had similar disease severity and frequency of inhaled steroid use, compared with patients without inflammation. Patients with systemic inflammation had more AE in the previous year; lower inspiratory capacity, greater dyspnea during the six minutes walk test and worse SGRQ and CRQ scores. CONCLUSIONS Low-grade systemic inflammation was found in 56 of 104 ex-smokers with COPD. This group showed a greater degree of lung hyperinflation, dyspnea on exercise and poor quality of life.
Revista Chilena De Enfermedades Respiratorias | 2016
Catalina Briceño V; Claudia Sepúlveda L; Joel Melo T; Virginia Linacre S; Jorge Dreyse D
Introduccion: La presencia de hipertension pulmonar (HTP) en pacientes con fibrosis pulmonar es un predictor de gravedad y pobre sobrevida en pacientes en espera de trasplante pulmonar. Poco se sabe del impacto de la HTP en la sobrevida de los pacientes en el periodo post trasplante. Objetivo: Evaluar el efecto de la HTP en la sobrevida de los pacientes con fibrosis pulmonar sometidos a trasplante pulmonar. Material y Metodo: Estudio retrospectivo de pacientes con diagnostico de fibrosis pulmonar sometidos a trasplante pulmonar en el Instituto Nacional de Torax durante el periodo de agosto de 2010 a junio de 2015. Los criterios diagnosticos de hipertension pulmonar fueron: presion de arteria pulmonar media mayor o igual a 25 mmHg y/o presion sistolica de arteria pulmonar mayor o igual a 35 mmHg. Resultados: De un total de 63 pacientes sometidos a trasplante pulmonar durante el periodo 2010-2015 en el Hospital del Torax, 42 pacientes tenian diagnostico de fibrosis pulmonar. De estos, 35 pacientes tenian diagnostico histologico de neumonia intersticial usual (UIP) y 7 de alveolitis alergica extrinseca en etapa fibrotica. Del total de pacientes con fibrosis pulmonar, 25 (60%) presentaba HTP en el periodo pre trasplante. Un total de 15 pacientes fallecieron durante el seguimiento. Al comparar la sobrevida post trasplante de pacientes con HTP vs sin HTP no se observo diferencia significativa (p = 0,74). Conclusiones: Al igual que en estudios internacionales, no observamos que la presencia de HTP en pacientes con fibrosis pulmonar aumente el riesgo de muerte en el periodo post-trasplante.
Revista Chilena De Enfermedades Respiratorias | 2014
Ginu Fuentes L; Carmen Venegas G; Marcos Ortega G.; Catalina Briceño V; Jorge Dreyse D; Ricardo Rabagliati B; Fernando Saldías P
Introduccion: Las infecciones en oncologia son frecuentes. Objetivo: Caracterizar las infecciones respiratorias en pacientes oncologicos hospitalizados. Metodos: Estudio descriptivo prospectivo de pacientes adultos oncologicos febriles en el Hospital Clinico de la Universidad Catolica, entre abril de 2008 y abril de 2009. Resultados: Se evaluaron 187 episodios. Se identifico foco clinico en 70% y 33 episodios (25%) correspondieron a foco respiratorio. La patologia oncologica correspondio a tumores de organo solido en 77% de los casos y el 33% ingreso con neutropenia febril. La infeccion respiratoria alta represento el 36% y baja un 65% de los casos; 55% fueron neumonia. De estos, se aislo el agente causal en un 39% (S. pneumoniae 2 casos, S. bovis 1, E. faecalis 1, P. jirovecii 2, S. maltophilia 1 y A. fumigatus 1). La letalidad en el hospital por neumonia fue 22% y la mortalidad general 12%. Conclusiones: La infeccion respiratoria es un motivo de consulta y hospitalizacion frecuente en pacientes oncologicos, destacando la neumonia. Conlleva elevada mortalidad y etiologia variada.
Revista Chilena De Enfermedades Respiratorias | 2013
Catalina Briceño V; Jorge Dreyse D; Laura Mendoza I; Orlando Díaz P; Gesma Mercado M; Gisella Borzone T
Introduccion: En ausencia de ecuaciones de referencia nacionales, la ATS recomienda comparar los resultados de capacidad de difusion de monoxido de carbono de sujetos sanos en una muestra representativa de la poblacion, con ecuaciones internacionales y escoger entre estas, aquella que presente la menor suma de los residuos. Objetivo: Comparar las ecuaciones de referencia disponibles en la literatura e identificar cual cumple mejor los criterios de seleccion. Metodo: Revisamos 10 ecuaciones de referencia; calculamos la suma de los residuos de cada una de ellas para una muestra de 71 sujetos sanos y describimos las caracteristicas que inciden en la variabilidad de cada una. Resultados: Desde 1985 se ha utilizado el metodo de respiracion unica. Solo las ecuaciones de Thompson y cols. 2008fueron obtenidas con lectura instantanea. Las ecuaciones que presentan menor suma de residuos (Miller, Roca y Cotes) incluyen fumadores y ex fumadores. Conclusiones: Es necesaria una ecuacion nacional en sujetos sanos no fumadores, con metodologia que asegure baja variabilidad.
Revista Chilena De Enfermedades Respiratorias | 2009
Christian Sandoval A; Jorge Dreyse D; Orlando Díaz P; Fernando Saldías P; Carmen Lisboa B
Short term effects of acute exacerbations in COPD patients Acute exacerbations of COPD (AECOPD) are associated with decline of FEV1 and health related quality of life. Our aim was to evaluate the short-term effects of AECOPD on several functional and clinical indices in a cohort of 60 ex-smokers patients with COPD. During a 6-month follow up, 40 patients experienced one exacerbation (Group 1), mainly moderate, evaluated 30 days after by measuring BMI, dyspnea, FVC, FEV1, inspiratory capacity (IC), SpO2, six-min walking distance (6MWD), BODE index and quality of life (SGRQ). Values were compared with those measured at recruitment in stable conditions and with those obtained in the 20 patients without AECOPD during a similar period (Group 2). Baseline values were similar in both groups. Group 1 showed a significant worsening in FVC, FEV1, SpO2, BMI, 6MWD, and BODE index. Improvement in SGRQ and BODE was found in group 2. Significant differences in changes between groups were found for all variables, except IC and SpO2. The most noteworthy differences were found for BODE index (p = 0.001) and SGRQ (p = 0.004). Results demonstrate that moderate AECOPD produces significant short term functional and clinical impairment in ex-smokers COPD.