Related Experiment Video
Updated: Aug 14, 2026
11:17
Thoracoscopic Extended Right Middle Plus Lower Sleeve Lobectomy for Non-Small-Cell Lung Cancer
Published on: February 27, 2026
Functional advantage after radical segmentectomy versus lobectomy for lung cancer
Hiroaki Harada1, Morihito Okada, Toshihiko Sakamoto
1Department of Thoracic Surgery, Hyogo Medical Center for Adults, Akashi, Japan.
The Annals of Thoracic Surgery
|November 25, 2005
Summary
Segmentectomy preserves lung function better than lobectomy for early lung cancer. This lung-sparing surgery shows significant benefits in forced vital capacity and forced expiratory volume six months post-operation.
Area of Science:
- Thoracic Surgery
- Pulmonary Function Testing
- Oncology
Background:
- Segmentectomy and lobectomy show similar survival rates for small lung cancers.
- Postoperative functional outcomes after segmentectomy versus lobectomy remain debated.
Purpose of the Study:
- To compare postoperative functional loss between segmentectomy and lobectomy for lung cancer.
- To evaluate the impact of surgical extent on pulmonary function.
Main Methods:
- Retrospective analysis of 38 segmentectomy and 45 lobectomy patients with non-small-cell lung cancer.
- Preoperative and 2, 6-month postoperative pulmonary function tests (FVC, FEV1, AT).
Main Results:
- No preoperative functional differences between groups.
- Significant correlation between resected segments and loss of FVC and FEV1.
- Segmentectomy group showed significantly less FVC and FEV1 reduction post-surgery.
Conclusions:
- Extent of lung parenchyma removed directly impacts functional loss up to 6 months.
- Segmentectomy provides superior functional preservation compared to lobectomy.
- Segmentectomy is important for early-stage lung cancer management.