• Swiss medical weekly · Jan 2011

    Lung cancer screening has the potential to safe lives, but shall we do it?

    • Erich W Russi.
    • Klinik für Pneumologie Universitätsspital Zürich Rämistrasse 100 CH-8091 Zürich Switzerland. erich.russi@usz.ch
    • Swiss Med Wkly. 2011 Jan 1;141:w13185.

    AbstractAlmost three decades ago several controlled studies failed to show that lung cancer screening by chest x-ray (CXR) and sputum cytology improves survival in a screened population. A number of subsequent studies using chest computed tomography (CT) in smokers revealed lesions suspect for cancer in around 20% and had a lung cancer detection rate of approx. 1%. Since these trials lacked a control arm, the question whether screening has an impact on lung cancer mortality remained unproven. Recently, the preliminary results of the randomised controlled National Lung Screening Trial (NLST), a study organised by the US National Cancer Institute, confirmed for the first time that lung cancer screening by CT is associated with a reduction in lung cancer mortality (20.3%) and in all-cause mortality (7%) compared with a control group undergoing CXR at the same time intervals. However, before lung cancer CT screening can be recommended, many open questions need to be answered with respect to costs and reimbursement, duration of an appropriate screening programme and its psychological impact.

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