Brazilian Journal of Pulmonology

ISSN (on-line): 1806-3756 | ISSN (printed): 1806-3713

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Clinical characteristics and prognosis in near-fatal asthma patients in Salvador, Brazil

Características clínicas e prognóstico em pacientes com asma quase fatal em Salvador, Bahia

Eduardo Vieira Ponte, Adelmir Souza-Machado, Carolina Souza-Machado, Rosana Franco, Álvaro Augusto Cruz

J Bras Pneumol.2011;37(4):431-437

Abstract PDF PT PDF EN Portuguese Text

Objective: To determine the frequency of near-fatal asthma in a group of severe asthma patients, as well as the clinical characteristics and prognosis of these patients within a one-year follow-up period. Methods: A prospective study involving 731 low-income patients with severe asthma treated at a referral outpatient clinic located in the city of Salvador, Brazil. The patients were submitted to spirometry at admission, received medications for asthma, and were monitored regarding the frequency of asthma exacerbations during the follow-up period. A subsample of 511 patients also completed questionnaires regarding asthma symptoms and asthma-related quality of life. Results: Of the 731 patients studied, 563 (77%) were female. The median age was 47 years, and 12% were illiterate. Most of the patients had rhinitis, and 70 patients (10%) reported near-fatal asthma prior to admission. Of these 70 patients, 41 (59%) reported having been intubated previously. The patients reporting a history of near-fatal asthma at admission were more likely to have asthma exacerbations during the follow-up period and to respond poorly to therapy than were those not reporting such a history. At the end of the follow-up period, the scores on the two questionnaires were similar between the two groups of patients. Conclusions: The frequency of near-fatal asthma was high in this group of low-income patients with severe asthma. The patients with a history of near-fatal asthma had a worse prognosis than did those without such a history, although both groups had received the same kind of treatment. Curiously, the intensity of symptoms and the quality of life at the end of the study were similar between the two groups.

 


Keywords: Asthma/prevention and control; Asthma/complications; Quality of life; Prognosis.

 


Causes of death in asthma patients enrolled in the Bahia State Program for the Control of Asthma and Allergic Rhinitis

Causas de óbitos entre asmáticos graves admitidos no Programa de Controle da Asma e da Rinite Alérgica na Bahia

Adelmir Souza-Machado, Carolina Souza-Machado, Daisy Freitas Silva, Eduardo Vieira Ponte, Alvaro A. Cruz

J Bras Pneumol.2007;33(4):372-379

Abstract PDF PT PDF EN Portuguese Text

Objective: To report demographic and clinical characteristics of patients with asthma who evolved to death, as well as to describe the conditions related to this outcome in a subgroup of patients admitted to the Program for the Control of Asthma and Rhinitis in Bahia (ProAR). Methods: A descriptive, retrospective, observational study. Data from clinical charts and death certificates of 16 patients of 930 subjects with severe asthma monitored at the ProAR Central Reference Center from December 2003 to June 2006 were reviewed. Results: Of the 930 patients participating in the program, 16 (1.72%) died. Of these, there were 10 males and 6 females, ranging in age from 39 to 74 years (median, 55 years); 12 (75%) of the patients were black. Time since diagnosis ranged from 1 to 68 years (median, 30 years). In 43.8 and 53.8%, respectively, there was a personal or family history of atopy. Ex-smokers (<10 pack-years) accounted for 37.5% of the cases. Causes of death listed on the death certificates were as follows: asthma or asthma exacerbations in 8 (50%); respiratory failure in 3 (18.75%); acute heart infarction in 2 (12.5%); hepatitis in 1 (6.25%); hypovolemic shock in 1 (6.25%); and cardiorespiratory arrest in 1 (6.25%). Of the 16 deaths, 13 (81.25%) occurred inside hospitals. Conclusion: Asphyxia and cardiovascular diseases were the most common atributed causes of mortality in this subgroup of patients with severe asthma. Hospital-based mortality, male gender, advanced age, long-term disease and fixed airflow obstruction were the aspects most frequently observed in the cases studied.

 


Keywords: Mortality; Rhinitis/treatment; Asthma/treatment; Cardiovascular diseases.

 


Risk factors for death in patients with severe asthma

Fatores de risco de morte em pacientes portadores de asma grave

Andréia Guedes Oliva Fernandes, Carolina Souza-Machado, Renata Conceição Pereira Coelho, Priscila Abreu Franco, Renata Miranda Esquivel, Adelmir Souza-Machado, Álvaro Augusto Cruz

J Bras Pneumol.2014;40(4):364-372

Abstract PDF PT PDF EN Portuguese Text

Objective: To identify risk factors for death among patients with severe asthma. Methods: This was a nested case-control study. Among the patients with severe asthma treated between December of 2002 and December of 2010 at the Central Referral Outpatient Clinic of the Bahia State Asthma Control Program, in the city of Salvador, Brazil, we selected all those who died, as well as selecting other patients with severe asthma to be used as controls (at a ratio of 1:4). Data were collected from the medical charts of the patients, home visit reports, and death certificates. Results: We selected 58 cases of deaths and 232 control cases. Most of the deaths were attributed to respiratory causes and occurred within a health care facility. Advanced age, unemployment, rhinitis, symptoms of gastroesophageal reflux disease, long-standing asthma, and persistent airflow obstruction were common features in both groups. Multivariate analysis showed that male gender, FEV1 pre-bronchodilator < 60% of predicted, and the lack of control of asthma symptoms were significantly and independently associated with mortality in this sample of patients with severe asthma. Conclusions: In this cohort of outpatients with severe asthma, the deaths occurred predominantly due to respiratory causes and within a health care facility. Lack of asthma control and male gender were risk factors for mortality.

 


Keywords: Asthma/mortality; Asthma/therapy; Risk factors.

 


Impact that a program to control severe asthma has on the use of Unified Health System resources in Brazil

Impacto de um programa para o controle da asma grave na utilização de recursos do Sistema Único de Saúde

Eduardo Ponte, Rosana Abreu Franco, Adelmir Souza-Machado, Carolina Souza-Machado, Álvaro Augusto Cruz

J Bras Pneumol.2007;33(1):15-19

Abstract PDF PT PDF EN Portuguese Text

Objective: To quantify the use of health care resources among patients enrolled in the Bahia State Asthma and Allergic Rhinitis Control Program. Methods: As of January of 2006, 1405 patients had enrolled in the program, which is carried out in four referral centers in the city of Salvador. These patients formed the basis of this retrospective/prospective, observational cohort study. The preliminary analysis involved 269 consecutive patients, all above the age of 12 and diagnosed with severe asthma. After being seen by pulmonologists, nurses, pharmacologists and psychologists, the patients received inhaled asthma medications. Based on patient interviews and charts, the year preceding enrollment in the program was compared with the first year enrolled in the program in terms of the following quantifiable parameters: hospital admissions; emergency room visits; courses of oral corticosteroids; and days of school/work missed due to asthma attacks. Results: In this sample of patients with severe asthma, enrollment in the program resulted in significant reductions in the number of emergency room visits and hospital admissions (of 85% and 90%, respectively). There were also reductions in the number of school/work days missed due to asthma attacks and in the number of courses of oral corticosteroids (of 86% and 67%, respectively). Conclusion: A program designed to control severe asthma in referral outpatient clinics and including pharmacological services at no charge can lead to a pronounced reduction in the demand for Unified Health Care System resources.

 


Keywords: Asthma/therapy; Asthma/prevention  control; Hospitalization; National Health System (BR)

 


 

 


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