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Lung function is influenced by the progressive increase in BMI, with changes in lung function better demonstrated when BMI > 45 kg/m²; these changes are more evident when BMI > 50.9 kg/m².

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Lung age is increased in patients with morbid obesity, suggesting premature damage and accelerated lung aging, as evidenced by the discrepancy between chronological age and lung age. The determination of lung age might become a new tool for understanding pulmonary function results, for patients as well as for health professionals, in relation to obesity control.

The aim of this study was to evaluate the pulmonary condition in a large family with Charcot-Marie-Tooth disease type 2 (CMT2). Eighteen participants diagnosed with CMT2 and 20 healthy individuals were evaluated by spirometry and maximal expiratory and maximal inspiratory pressures (MEP and MIP, respectively). Clinical disability was measured with CMT neuropathy score (CMTNS; range 0-36). One control group (CG) comprising 20 individuals, matched for age, sex and body mass index, were used for comparison. Eight patients were female (44.5%) and 10 patients were male (55.5%); mean age was 31.8 years (range 11-79) and CMTNS range was 6-26. Differences between CMT2 and CG in the spirometry and respiratory muscle strength were statistically significant for all dimensions. There were significant correlations between CMTNS and MIP (Pearson = -0.581) and MEP (Pearson = -0.5090). The results of this study show that patients with CMT, in spite of not showing clinical signs of advanced respiratory impairment, may present subclinical respiratory changes. The respiratory comprise in the CMT disease can be silent and insidious without presenting characteristic clinical signals.

Objective: To determine the prevalence of asthma in a group of obese adult candidates for bariatric surgery and to evaluate the severity of asthma in this group of patients. Methods: This was a cross-sectional study involving 363 obese adults (body mass index ≥ 35 kg/m 2 ) evaluated by a pulmonologist, using clinical evaluation as a diagnostic tool for asthma. All patients underwent clinical evaluation and spirometry and were divided into two groups (asthma and control). The patients with asthma were stratified by the severity of asthma. Results: The prevalence of asthma in the obese population studied was 18.5% (95% CI: 14.5-22.4). That prevalence was 20.4% (95% CI: 16.2-24.5) and 13.7% (95% CI: 10.1-17.2) in the women and the men, respectively. Asthma symptoms in the last twelve months were present in 8.0% (95% CI: 5.2-10.7), and the initial manifestation of asthma symptoms occurred during childhood/adolescence in 17.4% (95% CI: 13.5-21.3). In the asthma group, intermittent asthma was present in 29 patients (43.3%), mild persistent asthma in 7 (10.4%), moderate asthma in 25 patients (37.3%), and severe persistent asthma in 6 (9.0%). Conclusions: Using clinical evaluation as the diagnostic criterion, we found the prevalence of asthma to be high in this group of obese adults. Asthma was more common in females, and the initial manifestation of asthma symptoms more commonly occurred during childhood/adolescence. The severity of asthma in this group of obese adults was within the range of mean values predicted for the general population. Intermittent asthma, mild persistent asthma, and moderate persistent asthma predominated.Keywords: Asthma; Cross-sectional studies; Spirometry; Respiratory function tests; Obesity, morbid. ResumoObjetivo: Determinar a prevalência de asma em um grupo de adultos obesos, candidatos a cirurgia bariátrica e avaliar a gravidade da asma neste grupo de pacientes. Métodos: Estudo transversal, envolvendo 363 pacientes obesos adultos (índice de massa corpórea ≥ 35 kg/m 2 ) avaliados por um médico pneumologista, utilizando a avaliação clínica como instrumento diagnóstico de asma. Todos os pacientes foram submetidos à avaliação clínica e espirometria e foram divididos em dois grupos (asma e controle). Os pacientes com asma foram classificados conforme a gravidade da doença. Resultados: A prevalência de asma na população de obesos estudada foi de 18,5% (IC95%: 14,5-22,4). Essa prevalência nas mulheres e nos homens foi de 20,4% (IC95%: 16,2-24,5) e 13,7% (IC95%: 10,1-17,2), respectivamente. Havia sintomas de asma nos últimos doze meses em 8,0% (IC95%: 5,2-10,7), e houve manifestação inicial dos sintomas de asma na infância/adolescência em 17, 4% (IC95%: 13,[5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]3). No grupo asma, asma intermitente estava presente em 29 pacientes (43,3%); asma persistente leve, em 7 (10,4%); asma moderada, em 25 (37,3%); e asma persistente grave, em 6 (9,0%). Conclusões: A prevalência de asma neste grupo de adultos obesos, utilizando-se a avaliação ...

In prebariatric surgery, there was a higher proportion of intermittent asthma and uncontrolled asthma, with asthma severity influencing the achievement of asthma control and the time required for surgical release.