Brazilian Journal of Pulmonology

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

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Update on the approach to smoking in patients with respiratory diseases

Atualização na abordagem do tabagismo em pacientes com doenças respiratórias

Maria Penha Uchoa Sales1,a, Alberto José de Araújo2,b, José Miguel Chatkin3,c, Irma de Godoy4,d, Luiz Fernando Ferreira Pereira5,e, Maria Vera Cruz de Oliveira Castellano6,f, Suzana Erico Tanni4,g, Adriana Ávila de Almeida7,h, Gustavo Chatkin3,i, Luiz Carlos Côrrea da Silva8,j, Cristina Maria Cantarino Gonçalves9,k, Clóvis Botelho12,13,l, Ubiratan Paula Santos14,m, Carlos Alberto de Assis Viegas15,n, Maristela Rodrigues Sestelo16,o, Ricardo Henrique Sampaio Meireles10,11,p, Paulo César Rodrigues Pinto Correa17,q, Maria Eunice Moraes de Oliveira18,r, Jonatas Reichert19,s, Mariana Silva Lima6,t, Celso Antonio Rodrigues da Silva20,u

J Bras Pneumol.2019;45(3):e20180314-e20180314

Abstract PDF PT PDF EN Portuguese Text

Smoking is the leading cause of respiratory disease (RD). The harmful effects of smoking on the respiratory system begin in utero and influence immune responses throughout childhood and adult life. In comparison with "healthy" smokers, smokers with RD have peculiarities that can impede smoking cessation, such as a higher level of nicotine dependence; nicotine withdrawal; higher levels of exhaled carbon monoxide; low motivation and low self-efficacy; greater concern about weight gain; and a high prevalence of anxiety and depression. In addition, they require more intensive, prolonged treatment. It is always necessary to educate such individuals about the fact that quitting smoking is the only measure that will reduce the progression of RD and improve their quality of life, regardless of the duration and severity of the disease. Physicians should always offer smoking cessation treatment. Outpatient or inpatient smoking cessation treatment should be multidisciplinary, based on behavioral interventions and pharmacotherapy. It will thus be more effective and cost-effective, doubling the chances of success.

 


Keywords: Respiratory tract diseases/therapy; Respiratory tract diseases/drug therapy; Tobacco use disorder/epidemiology; Smoking cessation; Counseling; Lung neoplasms.

 


Prevalence of alpha-1 antitrypsin deficiency and allele frequency in patients with COPD in Brazil

Prevalência da deficiência de alfa-1 antitripsina e frequência alélica em pacientes com DPOC no Brasil

Rodrigo Russo1,2, Laura Russo Zillmer1, Oliver Augusto Nascimento1, Beatriz Manzano1, Ivan Teruaki Ivanaga1, Leandro Fritscher3, Fernando Lundgren4, Marc Miravitlles5, Heicilainy Del Carlos Gondim6, Gildo Santos Junior7, Marcela Amorim Alves4, Maria Vera Oliveira8, Altay Alves Lino de Souza9, Maria Penha Uchoa Sales10, José Roberto Jardim1

J Bras Pneumol.2016;42(5):311-316

Abstract PDF PT PDF EN Portuguese Text

Objective: To determine the prevalence of alpha 1-antitrypsin (AAT) deficiency (AATD), as well as allele frequency, in COPD patients in Brazil. Methods: This was a cross-sectional study involving 926 COPD patients 40 years of age or older, from five Brazilian states. All patients underwent determination of AAT levels in dried blood spot (DBS) samples by nephelometry. Those with DBS AAT levels ≤ 2.64 mg/dL underwent determination of serum AAT levels. Those with serum AAT levels of < 113 mg/dL underwent genotyping. In case of conflicting results, SERPINA1 gene sequencing was performed. Results: Of the 926 COPD patients studied, 85 had DBS AAT levels ≤ 2.64 mg/dL, and 24 (2.6% of the study sample) had serum AAT levels of < 113 mg/dL. Genotype distribution in this subset of 24 patients was as follows: PI*MS, in 3 (12.5%); PI*MZ, in 13 (54.2%); PI*SZ, in 1 (4.2%); PI*SS, in 1 (4.2%); and PI*ZZ, in 6 (25.0%). In the sample as a whole, the overall prevalence of AATD was 2.8% and the prevalence of the PI*ZZ genotype (severe AATD) was 0.8% Conclusions: The prevalence of AATD in COPD patients in Brazil is similar to that found in most countries and reinforces the recommendation that AAT levels be measured in all COPD patients.

 


Keywords: alpha 1-antitrypsin deficiency/epidemiology; pulmonary disease, chronic obstructive/epidemiology; Alleles; alpha 1-antitrypsin.

 


 

 


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