The study of severe asthma in Latin America and Spain (1994-2004): characteristics of patients hospitalized with acute severe asthma.

OBJECTIVE: Studies assessing the characteristics and management of patients hospitalized with asthma have been limited to a small number of facilities and have evaluated short time periods. The present study evaluated long-term changes among hospitalized asthma patients at a large number of facilities. METHODS: This was a retrospective, hospital-based observational case series, designated the Study of Severe Asthma in Latin America and Spain, which was conducted in Spain and in eight Latin-American countries. We reviewed the hospital records of 3,038 patients (age range, 15-69 years) hospitalized with acute severe asthma at one of nineteen tertiary-care hospitals in 1994, 1999 and 2004. RESULTS: Over time, the use of inhaled corticosteroids and long-acting beta2 agonists increased significantly, whereas the use of theophylline as a controller medication decreased. The utilization of pulmonary function tests also increased. There was a significant reduction in the mean hospital stay (8.5 days, 7.4 days and 7.1 days in 1994, 1999 and 2004, respectively, p = 0.0001) and a significant increase in the mean of the lowest arterial pH at hospital admission. In contrast, there was a significant decrease in the proportion of cases in which PEF was determined in the emergency room (48.6% in 1994 vs. 43.5% in 2004, p = 0.0001). We found the quality of asthma management and care to be generally better in Spain than in Latin America. CONCLUSIONS: Although there have been certain improvements in the management of asthma between severe exacerbations and during hospitalization, asthma management remains suboptimal in Spain and, especially, in Latin America.

The study of severe asthma in Latin America and Spain (1994-2004): characteristics of patients hospitalized with acute severe asthma / Estudo sobre Asma Grave na América Latina e Espanha (1994-2004): características dos pacientes hospitalizados com asma aguda grave

Objective: Studies assessing the characteristics and management of patients hospitalized with asthma have been limited to a small number of facilities and have evaluated short time periods. The present study evaluated long-term changes among hospitalized asthma patients at a large number of facilities. Methods: This was a retrospective, hospital-based observational case series, designated the Study of Severe Asthma in Latin America and Spain, which was conducted in Spain and in eight Latin-American countries. We reviewed the hospital records of 3,038 patients (age range, 15-69 years) hospitalized with acute severe asthma at one of nineteen tertiary-care hospitals in 1994, 1999 and 2004. Results: Over time, the use of inhaled corticosteroids and long-acting β2 agonists increased significantly, whereas the use of theophylline as a controller medication decreased. The utilization of pulmonary function tests also increased. There was a significant reduction in the mean hospital stay (8.5 days, 7.4 days and 7.1 days in 1994, 1999 and 2004, respectively, p = 0.0001) and a significant increase in the mean of the lowest arterial pH at hospital admission. In contrast, there was a significant decrease in the proportion of cases in which PEF was determined in the emergency room (48.6% in 1994 vs. 43.5% in 2004, p = 0.0001). We found the quality of asthma management and care to be generally better in Spain than in Latin America. Conclusions: Although there have been certain improvements in the management of asthma between severe exacerbations and during hospitalization, asthma management remains suboptimal in Spain and, especially, in Latin America.

Objetivo: Estudos que avaliem as características e o gerenciamento de pacientes asmáticos hospitalizados têm sido limitados a um número pequeno de serviços e a curtos períodos de duração. O presente estudo avaliou alteraçõesde longo prazo de pacientes asmáticos hospitalizados em um grande número de serviços. Métodos: Estudo retrospectivo,observacional, de base hospitalar, denominado Estudo sobre Asma Grave na América Latina e Espanha, realizado na Espanha e em oito países da América Latina. Foi realizada uma revisão dos registros hospitalares de 3.038 pacientes (variação de idade, 15-69 anos) hospitalizados com asma aguda grave em um dos 19 hospitais terciários em 1994, 1999 e 2004. Resultados: Ao longo do tempo, o uso de corticosteroides inalatórios e de β2-agonistas aumentou significativamente, ao passo que o uso de teofilina, como medicação de controle, decaiu. A utilização de testes de função pulmonar também aumentou. Houve uma redução significativa da média do tempo de internação (8,5 dias, 7,4 dias e 7,1 dias em 1994, 1999 e 2004, respectivamente; p = 0,0001) e um aumento significativo da média do menor pH arterial na admissão. Em contrapartida, houve uma diminuição significativa na proporção de casos submetidos ao PFE no pronto-socorro (48,6% em 1994 vs. 43,5% em 2004; p = 0,0001). O tratamento e o gerenciamento da asma foram, de forma geral, melhores na Espanha que na América Latina. Conclusões: Embora tenha havido avanços no gerenciamento da asma entre exacerbações graves e durante a hospitalização, esse gerenciamento continua subotimizado na Espanha e, em especial, na América Latina.