Segmentectomy effective option for lung cancer patients with low muscle mass: Study

This investigation included data from patients who had lobectomies or segmentectomies for early-stage non-small cell lung cancer between 2010 and 2020 with solid-dominant tumors up to 2 cm in size or ground glass opacity-dominant tumors up to 3 cm in size were retrospectively evaluated. The height-adjusted erector spinae muscle mass on preoperative chest computed CT images was used to calculate the preoperative muscle mass. Individuals with low and high muscle mass in the lobectomy and segmentectomy groups had different overall survival rates. 

Nearly, 371 individuals were recruited in the research, 209 of whom had segmentectomy and 162 of whom had lobectomy. In the lobectomy group, patients with low muscle mass had a considerably worse 5-year overall survival than those with high muscle mass; however, in the segmentectomy group, there was no discernible difference.

Low muscle mass was an independent predictive factor in the lobectomy group but not in the segmentectomy group in the various multivariable models. Overall, in terms of mortality from other causes, segmentectomies were more likely to be beneficial than lobectomies for individuals with poor muscle mass who are considered to be at risk.

Source:

Ueda, D., Mimae, T., Kamigaichi, A., Tsubokawa, N., Miyata, Y., Yoshimura, K., & Okada, M. (2025). Prognostic benefit of segmentectomy for patients with low muscle mass in early-stage lung cancer. Annals of Surgical Oncology. https://doi.org/10.1245/s10434-024-16384-5