Extent of Segmentectomy That Achieves Greater Lung Preservation Than Lobectomy.

Background: This study sought to clarify the extent of segmentectomy that achieves greater lung preservation than lobectomy.

Methods: This was a single-center retrospective cohort study involving 374 patients with lung cancer who were treated with either lobectomy or segmentectomy between 2013 and 2018. The percentage of preserved pulmonary function (%PPF) after surgery was compared among patients who underwent lobectomy (n = 164), segmentectomy of 2 or more segments (Seg ≥2S; n = 42), and segmentectomy of less than 2 segments (Seg <2S; n = 168).