Tuberc Respir Dis > Volume 38(2); 1991 > Article
Tuberculosis and Respiratory Diseases 1991;38(2):119-127.
DOI: https://doi.org/10.4046/trd.1991.38.2.119    Published online June 1, 1991.
Screening for early detection of lung cancer: results from Seoul National University Hospital.
Yong Chol Han, Chul Gyu Yoo, Young Whan Kim, Sung Koo Han, Young Soo Shim, Keun Youl Kim
Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
Abstract
This study was designed to observe the problems in performing the screening for early detection of lung cancer, and the degree to which regular radiographic and cytologic screening contributes to the early detection of lung cancer in asymptomatic volunteers. Through mass media campaign, 346 male volunteers had registered to receive radiographic and sputum cytogic screening every four months. Initial chest x-ray examination showed 83 cases of lesions suggesting tuberculosis. Among them, two cases were proved to be active tuberculosis. The rate of long-term follw-up over two years was about 15%. The screening tests detected two cases of lung cancer, one prevalent lung cancer by sputum cytologic examination, and the other by sputum cytologic examination during follow.up. So the prevalence rate of lung cancer was 0.28% and the incidence rate was 3 . 1/ 1,000 person-years. Both were localized lesions; ie, American Joint Committee on Cancer (AJCC) stage I and occult lung cancer, respectively. With these results, we suggest that the maintenance of long.term follow-up seems to be the most important problem to evaluate the effect of early detection of lung cancer. It would require thorough explanation of the risk of smoking in lung cancer and the wide public education on the govemment’s base. It should be done at several hospitals simultaneously to include a large population in the study. Although we couldn’t determine the effect of screening for the early detection of lung cancer in this report, new diagnostic procedure other than chest x-ray and sputum cytologic examination would be required, according to the literature, to reduce the mortality of lung cancer by the screening program for the early detection of lung cancer.


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