Browsing by Author "Montes de Oca, Maria"

Now showing 1 - 14 of 14
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    Acute bronchodilator responsiveness in subjects with and without airflow obstruction in five Latin American cities: The PLATINO study
    (ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2010) Montes de Oca, Maria; Perez Padilla, Rogelio; Talamo, Carlos; Halbert, Ronald J.; Moreno, Dolores; Victorina Lopez, Maria; Muino, Adriana; Jose Roberto, B. Jardim; Valdivia, Gonzalo; Pertuze, Julio; Ana Maria, B. Menezes; PLATINO Team
    Background: Acute bronchodilator responsiveness is an area of discussion in COPD. No information exists regarding this aspect of the disease from an unselected COPD population. We assessed acute bronchodilator responsiveness and factors influencing it in subjects with and without airway obstruction in an epidemiologic sample.
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    Airflow Obstruction in Never Smokers in Five Latin American Cities: The PLATINO Study
    (ELSEVIER SCIENCE INC, 2012) Perez Padilla, Rogelio; Fernandez, Rosario; Lopez Varela, Maria Victorina; Montes de Oca, Maria; Muino, Adriana; Talamo, Carlos; Brito Jardim, Jose Roberto; Valdivia, Gonzalo; Baptista Menezes, Ana Maria
    Background. Although chronic obstructive pulmonary disease (COPD) is mostly related to tobacco smoking, a variable proportion of COPD occurs in never smokers. We investigated differences between COPD in never smokers compared with smokers and subjects without COPD.
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    Chronic bronchitis phenotype in subjects with and without COPD: The PLATINO study
    (EUROPEAN RESPIRATORY SOC JOURNALS LTD, 2012) Montes de Oca, Maria; Halbert, Ronald J.; Victorina Lopez, Maria; Perez Padilla, Rogelio; Talamo, Carlos; Moreno, Dolores; Muino, Adriana; Jardim, Jose Roberto; Valdivia, Gonzalo; Pertuze, Julio; Menezes, Ana Maria B.
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    Diagnostic Labeling of COPD in five Latin American cities
    (ELSEVIER, 2007) Talamo, Carlos; Montes de Oca, Maria; Halbert, Ron; Perez Padilla, Rogelio; Jardim, Jose Roberto B.; Muino, Adriana; Lopez, Maria Victorina; Valdivia, Gonzalo; Pertuze, Julio; Moreno, Dolores; Menezes, Ana Maria B.; PLATINO Team
    Background: COPD is a major worldwide problem with a rising prevalence. Despite its importance, there is a lack of information regarding underdiagnosis and misdiagnosis of COPD in different countries. As part of the Proyecto Latinoamericano de Investigacion en Obstruccion Pulmonar study, we examined the relationship between prior diagnostic label and airway obstruction in the metropolitan areas of five Latin American cities (S (a) over tildeo Paulo, Santiago, Mexico City, Montevideo, and Caracas).
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    Frequency of Self-Reported COPD Exacerbation and Airflow Obstruction in Five Latin American Cities The Proyecto Latinoamericano de Investigacion en Obstruccion Pulmonar (PLATINO) Study
    (ELSEVIER SCIENCE BV, 2009) Montes de Oca, Maria; Talamo, Carlos; Halbert, Ronald J.; Perez Padilla, Rogelio; Victorina Lopez, Maria; Muino, Adriana; Jardim, Jose Roberto B.; Valdivia, Gonzalo; Pertuze, Julio; Moreno, Dolores; Menezes, Ana Maria B.
    Background: Recurrent exacerbations are common in COPD patients. Limited information exists regarding exacerbation frequency in COPD patients from epidemiologic studies. We examined the frequency of self-reported exacerbations and the factors influencing exacerbation frequency among COPD patients in a population-based study conducted in Latin America.
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    Health status perception and airflow obstruction in five Latin American cities: The PLATINO study
    (W B SAUNDERS CO LTD, 2009) Montes de Oca, Maria; Talamo, Carlos; Halbert, Ronald J.; Perez Padilla, Rogelio; Victorina Lopez, Maria; Muino, Adriana; Jardim, Jose Roberto B.; Valdivia, Gonzalo; Pertuze, Julio; Moreno, Dolores; Menezes, Ana Maria B.; PLATINO Team
    Background: COPD is a highly prevalent disease but underdiagnosed, undertreated and possibly under-recognized by patients. Limited information exists regarding patients' perception of COPD severity. We compared patients' general, health status perception, degree of breathlessness and physical activity limitation with the severity of their respiratory condition measured by airway obstruction, in a population-based sample.
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    Inequalities on medical diagnosis and underdiagnosis of COPD: The PLATINO study
    (EUROPEAN RESPIRATORY SOC JOURNALS LTD, 2015) Wehrmeister, Fernando C.; Menezes, Ana Maria B.; Montes de Oca, Maria; Talamo, Carlos; Victorina Lopez Varela, Maria; Muino, Adriana; Valdivia, Gonzalo; Lisboa, Carmem; Jardim, Jose R.; Perez Padilla, Rogelio
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    Prevalence of Sleep Related Symptoms in Four Latin American Cities
    (2008) Torre-Bouscoulet, Luis; Carlos Vazquez-Garcia, Juan; Muino, Adriana; Marquez, Maria; Victorina Lopez, Maria; Montes de Oca, Maria; Talamo, Carlos; Valdivia, Gonzalo; Pertuze, Julio; Menezes, Ana Maria B.; Perez-Padilla, Rogelio
    Study Objectives: to estimate the prevalence of the most common sleep related symptoms (SRS) in the metropolitan areas of Mexico City, Montevideo (Uruguay), Santiago (Chile), and Caracas (Venezuela).
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    Quality of life in the PLATINO study 6 to 9 years later
    (EUROPEAN RESPIRATORY SOC JOURNALS LTD, 2015) Pradella, Cristiane O.; Gazzotti, Mariana R.; Moreira, Graciane L.; Manzano, Beatriz M.; Montes de Oca, Maria; Lopes, Maria V.; Menezes, Ana Maria B.; Muino, Adriana; Lisboa, Carmen; Valdivia, Gonzalo; Perez Padilla, Rogelio; Nascimento, Oliver A.; Jardim, Jose R.
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    Six-Minute Walking Distance in Women with COPD
    (TAYLOR & FRANCIS INC, 2011) de Torres, Juan P.; Casanova, Ciro; Cote, Claudia G.; Lopez, Maria V.; Diaz, Orlando; Maria Marin, Jose; Pinto Plata, Victor; Montes de Oca, Maria; Aguirre Jaime, Armando; Celli, Bartolome R.
    Background: The 6-minute walk distance (6MWD) has been useful in the evaluation of men with COPD. Little is known about 6MWD in women with the disease. Objectives: Using healthy women as a reference, to evaluate the factors that help determine 6MWD in women with COPD. To explore if the 350 meters threshold differentiates survival in women as it does in men. Methods: Healthy women (n = 164) and with COPD (n = 223) were included in the study. Age, pack-years history, smoking status, comorbidities (Charlson Index), BMI, MRC dyspnea, spirometry and 6MWD were recorded in all participants and PaO2 and IC/TLC in COPD women. The patients were prospectively followed and deaths registered. Factors predicting 6MWD were determined by multiple regression analysis. ROC analysis was used to calculate the best threshold value for the 6MWD with mortality as gold standard. Kaplan-Meier curves compared survival of patients that walked more or less than 350 m by age categories. Results: The 6MWD is decreased in women with COPD. Values decrease with age and GOLD stages. Age, BMI, smoking status, comorbidities, MRC and FEV1% are statistical significant predictors of 6MWD. A 350 m cut-off value has a good sensitivity and specificity to predict (73% and 80% respectively) and differentiate survival (p < 0.001 for log rank comparisons) in these patients. Conclusions: In women with COPD, the 6MWD decreases with age and GOLD stages. A 350 m distance is a valid threshold to differentiate survival. Further studies in different settings should confirm our findings.
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    The chronic bronchitis phenotype in subjects with and without COPD: the PLATINO study
    (EUROPEAN RESPIRATORY SOC JOURNALS LTD, 2012) Montes de Oca, Maria; Halbert, Ronald J.; Victorina Lopez, Maria; Perez Padilla, Rogelio; Talamo, Carlos; Moreno, Dolores; Muino, Adrianna; Jardim, Jose Roberto B.; Valdivia, Gonzalo; Pertuze, Julio; Menezes, Ana Maria B.
    Little information exists regarding the epidemiology of the chronic bronchitis phenotype in unselected chronic obstructive pulmonary disease (COPD) populations. We examined the prevalence of the chronic bronchitis phenotype in COPD and non-COPD subjects from the PLATINO study, and investigated how it is associated with important outcomes.
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    The long-term stability of portable spirometers used in a multinational study of the prevalence of chronic obstructive pulmonary disease
    (DAEDALUS ENTERPRISES INC, 2006) Perez Padilla, Rogelio; Vazquez Garcia, Juan Carlos; Nelly Marquez, Maria; Roberto B Jardim, Jose; Pertuze, Julio; Lisboa, Carmen; Muino, Adriana; Victorina Lopez, Maria; Talamo, Carlos; Montes de Oca, Maria; Valdivia, Gonzalo; Maria B Menezes, Ana; PLATINO Team
    BACKGROUND: We report the performance of an ultrasound-based portable spirometer (EasyOne) used in a population-based survey of the prevalence of chronic obstructive pulmonary disease, conducted in 5 Latin American cities: Sao Paulo, Brazil; Mexico City, Mexico; Montevideo, Uruguay; Santiago, Chile; and Caracas, Venezuela (the Latin American COPD Prevalence Study [PLATINO]). METHODS: During the survey period (which ranged from 3 months to 6 months in the various locations) we collected daily calibration data from the 70 EasyOne spirometers used in the 5 survey cities. The calibrations were conducted with a 3-L syringe, and the calibration data were stored in the spirometer's database. RESULTS: Ninety-seven percent of the calibration volumes were within +/- 64 mL (2.1%) of the 3-L calibration signal. Excluding data from the first city studied (Sao Paulo), where one calibration syringe had to be replaced, 98% of the calibration checks were within +/- 50 mL (1.7%). The measured volume was affected only minimally by the syringe's peak flow or emptying time. CONCLUSION: In these 70 EasyOne spirometers neither calibration nor linearity changed during the study. Such calibration stability is a valuable feature in spirometry surveys and in the clinical setting.
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    Waist circumference and lung function parameters: The PLATINO study
    (EUROPEAN RESPIRATORY SOC JOURNALS LTD, 2012) Menezes, Ana Maria B.; Wehrmeister, Fernando C.; Perez Padilla, Rogelio; Lopez, Maria V.; Muino, Adriana; Talamo, Carlos; Montes de Oca, Maria; Jardim, Jose R.; Valdivia, Gonzalo
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    Waist-to-height ratio and lung function among adults. The PLATINO cohort
    (EUROPEAN RESPIRATORY SOC JOURNALS LTD, 2013) Menezes, Ana Maria; Wehrmeister, Fernando Cesar; Perez Padilla, Rogelio; Muino, Adriana; Lopez Varella, Maria Victorina; Valdivia, Gonzalo; Lisboa, Carmem; Jardim, Jose R.; Talamo, Carlos; Hallal, Pedro C.; Montes de Oca, Maria