Abstract

Objectives

Sarcopenia is very common due to cachexia and presents with a decrease in skeletal muscle mass. In this study, we aimed to investigate the relationship between the T, M category and the erector spinae muscle area (ESMa).

Material and methods

The initial first thorax and high-resolution computed tomography (CT) of patients with lung cancer between 2015 and 2019 were retrospectively screened. After exclusion criterias remaining 226 male patients constituted the study group. ESMa was measured manually in the section taken from the T12 vertebra spinous process level as previously described in the literature and its relationship with the T and M stage were evaluated.

Results

The mean ages of patients were 70 ± 9.57 years. The T stage was T1 in 34 (15%) patients, T2 in 46 (20.4%), T3 in 59 (26.1%), and T4 in 87 (38.5%). Metastasis was detected in 83 (36.7%) patients. The mean ESMa of the patients was 34.15 ± 7.21 mm² and did not differ according to the T stage (p = .39). ESMa was lower in the metastatic group (mean 30.42 ± 6.38 mm²) than the non-metastatic group (mean 36.32 ± 6.78 mm²) (p = .0001).

Conclusions

ESMa, one of the indicators of sarcopenia, is lower in patients with metastatic lung cancer than in nonmetastatic.

中文翻译：

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男性肺癌患者T、M分期与竖脊肌面积关系的评价

摘要

目标

由于恶病质，肌肉减少症非常常见，并表现为骨骼肌质量下降。在这项研究中，我们旨在调查 T、M 类别与竖脊肌区域 (ESMa) 之间的关系。

材料与方法

回顾性筛选2015年至2019年间肺癌患者的首次胸部和高分辨率计算机断层扫描（CT）。在排除标准之后，剩下的 226 名男性患者构成了研究组。ESMa 是在取自 T12 椎骨棘突水平的部分中手动测量的, 如先前在文献中所述, 并评估了它与 T 和 M 阶段的关系。

结果

患者的平均年龄为 70 ± 9.57 岁。34 例 (15%) 患者的 T 分期为 T1，46 例 (20.4%) 为 T2，59 例 (26.1%) 为 T3，87 例 (38.5%) 为 T4。在 83 名 (36.7%) 患者中检测到转移。患者的平均 ESMa 为 34.15 ± 7.21 mm ²并且没有因 T 分期而异 ( p  = .39)。转移组的 ESMa（平均 30.42 ± 6.38 mm ²）低于非转移组（平均 36.32 ± 6.78 mm ²）（p  = .0001）。

结论

ESMa 是肌肉减少症的指标之一，在转移性肺癌患者中低于非转移性肺癌患者。