PT - JOURNAL ARTICLE AU - Mafalda van Zeller AU - Manuel Vaz AU - Filipa Soares Pires AU - Paula Martins AU - Luís Gaspar AU - Paulo Viana AU - Isabel Gomes TI - Is dynamic hyperinflation a major concern in patients with pseudotumoral silicosis? DP - 2013 Sep 01 TA - European Respiratory Journal PG - P3971 VI - 42 IP - Suppl 57 4099 - http://erj.ersjournals.com/content/42/Suppl_57/P3971.short 4100 - http://erj.ersjournals.com/content/42/Suppl_57/P3971.full SO - Eur Respir J2013 Sep 01; 42 AB - Introduction - In patients with severe airway obstruction exercise might induce dynamic hyperinflation, nevertheless pulmonary rehabilitation (PR) is an essential component of care for patients with chronic pulmonary disease. Information regarding the effects of PR in pseudotumoral silicosis is scant in the literature.Aim – evaluate the effects of a twelve weeks PR program in pulmonary function (PF) and arterial blood gases (ABG) of pseudotumoral silicosis patients.Methods - a retrospective evaluation of pseudo-tumoral silicosis patients who attended PR which included cycle-ergometer exercise for 30 minutes, 3 times per week, with additional upper and lower limbs training. PF and ABG were evaluated before and after the PR.Results - 10 patients were included, all were male with median age 56 years. Initial PF testes reveled that all but one patient had severe obstruction: median FVC- 57.1%, FEV1 – 36, 7 % and RV-132,5% of predicted values and ABG analysis showed median pO2-64.3 mmHg, pCO2-42.1 mmHg, pH-7.44. After PR median final FVC- 53.4%, FEV1 – 33,75 % and RV-136,0% of predicted values and ABG analysis showed median pO2-69.4 mmHg, pCO2-40.0 mmHg, pH-7.45. PF was stable and an increase on pO2 was noted, but without any statistically significance (p=0.767).Conclusion – PR in these patients with pseudotumoral silicosis did not significantly change PF or ABG. Although patients were severely obstructed, no significant change suggesting exercise deleterious effects in RV was present at the end of the PR program.