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Lung Cancer Screening: Evidence, Risks, and Opportunities for Implementation.

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Lung cancer screening with low-dose CT reduces mortality. Tailored risk stratification and community-based approaches are key for effective implementation and reduced costs.

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Area of Science:

  • Pulmonology
  • Oncology
  • Radiology

Background:

  • Lung cancer is a leading cause of cancer death globally.
  • Low-dose CT screening has demonstrated efficacy in reducing lung cancer mortality.
  • Implementation of lung cancer screening programs is lagging in many European countries.

Purpose of the Study:

  • To review current evidence on lung cancer screening.
  • To explore opportunities for implementing screening strategies.
  • To discuss key pillars of lung cancer screening practice based on recent literature.

Main Methods:

  • Comprehensive literature review using PubMed (search until November 16, 2020).
  • Analysis of evidence from major lung cancer screening trials, including the NELSON trial.
  • Discussion of patient recruitment, risk stratification, and nodule management strategies.

Main Results:

  • The NELSON trial confirmed reduced lung cancer mortality, with nodule volume being a key factor.
  • Heterogeneity in patient recruitment necessitates risk models and community-based screening.
  • Evidence from the UK highlights evolving recruitment strategies for diverse populations.

Conclusions:

  • Lung cancer screening with low-dose CT effectively reduces mortality.
  • Semi-automated volume measurement and volume doubling time are recommended for risk optimization.
  • A tailored, personalized risk stratification approach is crucial for reducing costs and risks, potentially involving longer screening intervals for lower-risk individuals.