170164 20260407115448.0 doi 10.1111/1759-7714.70264 sideral 148687 ART-2026-148687 eng Fuentes-Martín, Álvaro Disruption of radiological surveillance following a global health crisis in resected lung cancer 2026 Objectives: Radiological surveillance after curative-intent lung cancer resection is essential for early detection of recurrence and second primary tumors. Large-scale health emergencies can compromise oncologic follow-up. This study quantifies the impact of a health crisis on radiological surveillance in a national cohort of resected lung cancer patients. Methods: A time-segmented observational cohort study was performed using data from the prospective, multicenter GEVATS registry. Surveillance density (CT/month) was evaluated across three predefined periods: pre-pandemic (baseline), state of alarm (maximum healthcare restrictions), and post-alarm (recovery phase). The population at risk was updated for each period. Subgroup analyses during the post-alarm phase assessed prioritization according to neoadjuvant treatment, pathological stage, age, and comorbidity. Results: Among 2382 eligible patients, surveillance density declined progressively from the pre-pandemic period (0.157 ± 0.079 CT/month) to the state of alarm (0.098 ± 0.071 CT/month). In the post-alarm phase, density dropped sharply to 0.023 ± 0.018 CT/month (equivalent to one CT every 3.6 years), representing a 76.5% reduction compared with the state-of-alarm period (p < 0.001). This under-surveillance was generalized, with no significant differences by pathological stage (p = 0.084), age (p = 0.564), or comorbidity (p = 0.872). Only prior neoadjuvant therapy was associated with a slightly higher density (p = 0.040). Conclusions: A prolonged health crisis resulted in a profound and persistent reduction in radiological surveillance after lung cancer resection, without evidence of risk-based prioritization. These findings support the need for contingency frameworks within clinical guidelines to preserve continuity of oncologic follow-up during future health emergencies. Access copy available to the general public Unrestricted info:eu-repo/semantics/openAccess by-nc-nd https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Martínez-Hernández, Néstor J. Embun, Raul Universidad de Zaragoza (orcid)0000-0003-0249-3104 Muñoz Moreno, María Fé Cilleruelo Ramos, Ángel 1013 090 Universidad de Zaragoza Dpto. Cirugía Área Cirugía 17, 5 (2026), e70264 [7 pp.] THORACIC CANCER THORACIC CANCER 1759-7706 468186 http://zaguan.unizar.es/record/170164/files/texto_completo.pdf Versión publicada 2505331 http://zaguan.unizar.es/record/170164/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:170164 articulos driver 2026-03-26-14:30:51 ARTICLE