PT  - JOURNAL ARTICLE
AU  - Mirian Torres González
AU  - Elena Badaran
AU  - Julio Sánchez de Cos Escuín
AU  - Juan Antonio Riesco Miranda
TI  - Relationship between lung cancer and chronic obstructive pulmonary disease
DP  - 2014 Sep 01
TA  - European Respiratory Journal
PG  - P2752
VI  - 44
IP  - Suppl 58
4099  - http://erj.ersjournals.com/content/44/Suppl_58/P2752.short
4100  - http://erj.ersjournals.com/content/44/Suppl_58/P2752.full
SO  - Eur Respir J2014 Sep 01; 44
AB  - Introduction: exposure to snuff smoke is a common risk factor for developing lung cancer (LC) and chronic obstructive pulmonary disease (COPD). According to some studies, COPD has been identified as an independent risk factor for the development of LC. However, there is discordance between the severity of COPD and the development of LC.Aims: to evaluate the prevalence of airway obstruction (AO) in patients diagnosed with LC and to study the relationship between LC and the severity of COPD.Methods: it was included patients with suspected LC who were admitted to our Deparment during thirteen months. Epidemiological and smoking variables were analyzed. Performing spirometry (SP) and diagnostic tests for the study of LC were evaluated.Results: 117 patients with suspected LC were included, 88 % males with a mean age of 70.9(SD 10.71). 43.6 % were smokers and 47.9 % former smokers. The median time from smoking cessation to the development of LC was 10 years (1-40). SP was performed in 68.4 % (80/117), having a prevalence of COPD of 61.3 % (49/80) and 65.3% were COPD recent diagnosis (32/49). 55.1 % of COPD patients had moderate AO. The median time between diagnosis of COPD and the development of LC was 48 months (3-180). Emphysema was described on the CT scan in 33%. The most frequent histological strain was squamous cell carcinoma. The diagnosis of LC in advanced stages was performed in most cases (53.1 %, stage IV).Conclusions: COPD is a highly prevalent disease among patients with suspected LC, having mild to moderate severity AO at diagnosis. This fact suggests the need for close monitoring of these patients according to an earlier diagnosis of LC.