A longitudinal exploration of 'Four Critical Moments' during treatment trajectory in patients with operable lung cancer and the feasibility of an exercise intervention: a research protocol

Aim. This article described a research protocol for a study exploring the lived experiences of patients with operable lung cancer in daily life at 'Four Critical Moments' during the disease and treatment trajectory. Background. Patients with lung cancer may experience complex problems during the disease and treatment trajectory, and studies conclude this population to be at higher risk in developing emotional distress than other cancer populations. It is required to explore the supportive needs of patients with lung cancer through the treatment trajectory. Design. A longitudinal design with a method of multiple data collection. The study is performed at four time points 'Four Critical Moments'. Methods. The study contained three samples. Sample I and sample II explored the expected four critical moments for patients with operable lung cancer within the first 4 months following diagnosis and surgery. Sample III explored the patients' participation and the feasibility of an exercise intervention targeting patients with operable lung cancer. For all three samples, interviews will be performed: (1) 5 days following diagnosis; (2) the day after surgery; (3) 7 weeks; and (4) 4 months following surgery. Data from questionnaires for all three samples will be collected at baseline and 4 months following surgery. Discussion. The study will add new perspectives on the lived experiences of patients with lung cancer along the treatment trajectory based on empirical and theoretical findings for both the general lung cancer population and patients participating in an exercise intervention. This will provide a basis for optimizing and developing interventions for patients with lung cancer starting in the surgical context.