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Abstract
Purpose: To investigate the prognostic impact of sarcopenia on the survival of patients with locally advanced pancreatic cancer (LAPC) treated with concurrent chemoradiotherapy (CCRT).

Methods: We retrospectively reviewed 299 patients diagnosed with LAPC and treated with definitive CCRT from 2000 to 2015. Skeletal muscle index (SMI) was measured using computed tomography scans and sarcopenia was defined as SMI <29.6 cm2/m2 for women and <36.2 cm2/m2 for men. The significance of sarcopenia for progression-free survival (PFS) and overall survival (OS) was evaluated.

Results: Sarcopenia was present in 29 patients (9.7%). In multivariate analysis, sarcopenia was a significant factor for PFS (p = 0.043). Although sarcopenia was not a significant factor for OS (p = 0.121) in multivariate analysis, long-term survivors were observed only in the no sarcopenia group (OS at 60 months: 9.5% vs 0%, p < 0.001).

Conclusion: In patients undergoing CCRT for LAPC, sarcopenia is an independent factor for adverse prognosis.

Affiliations

Won Kyung Cho  1 , Jeong Il Yu  1 , Hee Chul Park  1 , Do Hoon Lim  1 , Tae Hyun Kim  2 , Eui Kyu Chie  3
1 Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
2 Department of Radiation Oncology, National Cancer Center, Goyang, Korea.
3 Department of Radiation Oncology, Seoul National University College of Medicine, Seoul, Korea.