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05.02.2018 | Gastrointestinal Oncology | Ausgabe 5/2018 Open Access

Annals of Surgical Oncology 5/2018

Sarcopenia and Comorbidity in Gastric Cancer Surgery as a Useful Combined Factor to Predict Eventual Death from Other Causes

Zeitschrift:
Annals of Surgical Oncology > Ausgabe 5/2018
Autoren:
MD Kazuya Kuwada, MD, PhD Shinji Kuroda, MD, PhD Satoru Kikuchi, MD, PhD Ryuichi Yoshida, MD, PhD Masahiko Nishizaki, MD, PhD Shunsuke Kagawa, MD, PhD Toshiyoshi Fujiwara
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1245/​s10434-018-6354-4) contains supplementary material, which is available to authorized users.

Abstract

Background

Sarcopenia is recognized as an important prognostic factor in various types of cancer, including gastric cancer. While long-term survival analyses typically focus on overall and disease-specific survival, death from other causes has received far less attention.

Methods

We reviewed medical records of 491 gastric cancer patients who underwent gastrectomy from January 2005 to March 2014 and whose preoperative computed tomography (CT) images were available for evaluation of sarcopenia. Sarcopenia was defined as the SMA/BSA index (skeletal muscle area divided by body surface area) below the sex-specific lowest quartile.

Results

Sarcopenia was significantly associated with age, high body mass index (BMI), presence of comorbidity, high American Society of Anesthesiologists physical status (ASA-PS), high T score, advanced stage, large blood loss, and long hospital stay, but was not significantly associated with postoperative complications. Univariate and multivariate analyses of prognostic factors for overall survival revealed that sarcopenia is an independent predictor of poor prognosis [hazard ratio (HR) 1.46, 95% confidence interval (CI) 1.01–2.09, p  =  0.0454]. Our analysis of death due to other causes found that non-gastric cancer-related deaths were more frequent among sarcopenia patients with comorbidities than in the rest of our study population (p  =  0.0001), while univariate and multivariate analyses revealed that sarcopenia with comorbidity was an independent risk factor for non-gastric cancer-related death (HR 1.84, 95% CI 1.31–3.61, p  =  0.0308), as was age.

Conclusion

For gastric cancer patients, sarcopenia increases the risk of death from other causes following surgery, which reveals the importance of developing treatment strategies based not only on cancer status but also on other clinical factors, including sarcopenia and comorbidity.

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Zusatzmaterial
Supplementary material 1 (DOCX 471 kb)
10434_2018_6354_MOESM1_ESM.docx
Supplementary material 2 (DOCX 37 kb)
10434_2018_6354_MOESM2_ESM.docx
Literatur
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