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Sarcopenia in Resected NSCLC: Effect on Postoperative Outcomes
Ryota Nakamura1, Yoshihisa Inage1, Rika Tobita1
1Department of Surgery, National Hospital Organization Mito Medical Center, Ibaraki, Japan.
Sarcopenia, or skeletal muscle depletion, is common in non-small cell lung cancer (NSCLC) patients undergoing surgery. This condition is an independent predictor of poor prognosis and increased complications after lung cancer resection.
Area of Science:
- Oncology
- Radiology
- Geriatrics
Background:
- Sarcopenia is an emerging risk factor for adverse outcomes in cancer patients.
- The prognostic value of sarcopenia in non-small cell lung cancer (NSCLC) patients post-pulmonary resection requires further investigation.
Purpose of the Study:
- To evaluate the impact of sarcopenia on prognosis and postoperative complications in patients undergoing surgical resection for NSCLC.
Main Methods:
- Retrospective analysis of 328 NSCLC patients who underwent curative resection.
- Preoperative CT scans assessed psoas muscle mass index (PMI) at the third lumbar vertebra.
- Sarcopenia defined by specific PMI cutoff values for males (6.36 cm²/m²) and females (3.92 cm²/m²).
Main Results:
- Sarcopenia was present in 55.8% of patients and associated with older age, male sex, smoking, lower BMI, and major postoperative complications.
- Five-year survival rates were 61% for sarcopenic patients versus 91% for non-sarcopenic patients.
- Multivariate analysis identified sarcopenia as an independent unfavorable prognostic factor (p=0.019).
Conclusions:
- Preoperative CT-assessed sarcopenia can predict major postoperative complications and prognosis in resected NSCLC patients.
- Findings offer valuable insights for preoperative management strategies in lung cancer surgery.
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