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Ann Surg Oncol. 2018 Oct;25(11):3222-3230. doi: 10.1245/s10434-018-6624-1. Epub 2018 Jul 26.

Marked Loss of Muscle, Visceral Fat, or Subcutaneous Fat After Gastrectomy Predicts Poor Survival in Advanced Gastric Cancer: Single-Center Study from the CLASSIC Trial.

Author information

1
Division of Medical Oncology, Department of Internal Medicine, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea.
2
Division of Medical Oncology, Department of Internal Medicine, St. Vincent's Hospital, The Catholic University of Korea, Suwon, Korea.
3
Department of Surgery, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea.
4
Division of Abdominal Imaging, Department of Radiology, Yonsei University College of Medicine, Seoul, Korea.
5
Division of Abdominal Imaging, Department of Radiology, Yonsei University College of Medicine, Seoul, Korea. songeebaek@yuhs.ac.
6
Division of Medical Oncology, Department of Internal Medicine, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea. minkjung@yuhs.ac.

Abstract

BACKGROUND:

There is increasing interest in the influence of body composition on oncological outcomes. We evaluated the role of skeletal muscle and fat among patients with gastric cancer (GC) who underwent gastrectomy with or without adjuvant chemotherapy, as well as those changes' associations with survival outcomes.

METHODS:

The present study evaluated 136 patients with GC who were enrolled in the CLASSIC Trial at Yonsei Cancer Center. Baseline body compositions including skeletal muscle area, Hounsfield units (HU), visceral fat area, and subcutaneous fat area were measured by preoperative computed tomography (CT). CT before and after the gastrectomy were used to determine the 6-month relative changes in body composition parameters. Continuous variables were dichotomized according to the best cutoff values by Contal and O'Quigley method.

RESULTS:

Seventy-three patients (53.7%) underwent surgery alone, and 63 patients (46.3%) underwent surgery followed by adjuvant chemotherapy. The baseline body composition parameters were not associated with disease-free survival (DFS) or overall survival (OS). Except for the HU, the marked loss of muscle, visceral fat, or subcutaneous fat significantly predicted shorter DFS and OS. Patients with a marked loss in at least one significant body composition parameter had significantly shorter DFS (hazard ratio 2.9, 95% confidence interval 1.7-4.8, Pā€‰<ā€‰0.001) and OS (hazard ratio 2.9, 95% confidence interval 1.7-5.0, Pā€‰<ā€‰0.001).

CONCLUSIONS:

Marked loss in body composition parameters significantly predicted shorter DFS and OS among patients with GC who underwent gastrectomy. Postoperative nutrition and active healthcare interventions could improve the prognosis of these GC patients.

PMID:
30051367
DOI:
10.1245/s10434-018-6624-1
[Indexed for MEDLINE]

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