The impact of CT-based adipose tissue distribution and sarcopenia on treatment outcomes in patients with high-risk soft tissue sarcoma

Abstract Background The prognostic and predictive value of obesity and sarcopenia remains poorly defined in patients with high-risk soft tissue sarcoma (HR-STS). We sought to correlate clinical outcomes with CT-based body composition parameters in patients with HR-STS undergoing a multimodal preoper...

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Main Authors: Luc M. Berclaz, Dorit Di Gioia, Michael Völkl, Vindi Jurinovic, Alexander Klein, Hans Roland Dürr, Thomas Knösel, Bianca Teodorescu, Stefan Enßle, Michaela Rippl, Michael von Bergwelt-Baildon, Wolfgang G. Kunz, Lars H. Lindner, Anton Burkhard-Meier
Format: Article
Language:English
Published: BMC 2025-04-01
Series:BMC Cancer
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Online Access:https://doi.org/10.1186/s12885-025-14050-x
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author Luc M. Berclaz
Dorit Di Gioia
Michael Völkl
Vindi Jurinovic
Alexander Klein
Hans Roland Dürr
Thomas Knösel
Bianca Teodorescu
Stefan Enßle
Michaela Rippl
Michael von Bergwelt-Baildon
Wolfgang G. Kunz
Lars H. Lindner
Anton Burkhard-Meier
author_facet Luc M. Berclaz
Dorit Di Gioia
Michael Völkl
Vindi Jurinovic
Alexander Klein
Hans Roland Dürr
Thomas Knösel
Bianca Teodorescu
Stefan Enßle
Michaela Rippl
Michael von Bergwelt-Baildon
Wolfgang G. Kunz
Lars H. Lindner
Anton Burkhard-Meier
author_sort Luc M. Berclaz
collection DOAJ
description Abstract Background The prognostic and predictive value of obesity and sarcopenia remains poorly defined in patients with high-risk soft tissue sarcoma (HR-STS). We sought to correlate clinical outcomes with CT-based body composition parameters in patients with HR-STS undergoing a multimodal preoperative therapy. The impact of radiologic and histopathologic response to preoperative treatment was correlated with individual fat and muscle distribution. Methods Patients with locally advanced non-abdominal HR-STS and treatment with preoperative chemotherapy + regional hyperthermia (RHT) +/- radiotherapy (RT) followed by surgery between 2015 and 2022 were retrospectively evaluated. Body composition parameters measured on baseline CT scans were correlated with clinical outcomes including event-free survival (EFS) and overall survival (OS) as well as radiologic and histopathologic treatment response. Results A total of 85 patients were included. Body composition parameters showed no significant correlation with radiologic or histopathologic treatment response. High total fat indices such as the total fat index (TFI, HR 3.56, p = 0.005) and high total fat to muscle ratio (FMR, HR 3.22, p = 0.020) were strongly associated with poor OS. Parameters for sarcopenia including skeletal muscle index (SMI) were not significantly linked to survival outcomes. Conclusion High fat indices and a high FMR are strong predictors of poor OS in patients with HR-STS. Larger studies are warranted to further clarify the prognostic impact of sarcopenia and the predictive value of body composition parameters on preoperative treatment response.
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spelling doaj-art-08989a6eed994dbd8ccfc9b7d0e8b11b2025-08-20T03:06:51ZengBMCBMC Cancer1471-24072025-04-0125111110.1186/s12885-025-14050-xThe impact of CT-based adipose tissue distribution and sarcopenia on treatment outcomes in patients with high-risk soft tissue sarcomaLuc M. Berclaz0Dorit Di Gioia1Michael Völkl2Vindi Jurinovic3Alexander Klein4Hans Roland Dürr5Thomas Knösel6Bianca Teodorescu7Stefan Enßle8Michaela Rippl9Michael von Bergwelt-Baildon10Wolfgang G. Kunz11Lars H. Lindner12Anton Burkhard-Meier13Department of Internal Medicine III, University Hospital, LMU MunichDepartment of Internal Medicine III, University Hospital, LMU MunichDepartment of Internal Medicine III, University Hospital, LMU MunichInstitute for Medical Information Processing, Biometry, and Epidemiology, University Hospital, LMU MunichOrthopaedic Oncology, Department of Orthopedics and Trauma Surgery, University Hospital, LMU MunichOrthopaedic Oncology, Department of Orthopedics and Trauma Surgery, University Hospital, LMU MunichInstitute of Pathology, LMU MunichDepartment of Internal Medicine II, University Hospital, LMU MunichDepartment of Internal Medicine II, University Hospital, LMU MunichDepartment of Internal Medicine IV, University Hospital, LMU MunichDepartment of Internal Medicine III, University Hospital, LMU MunichDepartment of Radiology, University Hospital, LMU MunichDepartment of Internal Medicine III, University Hospital, LMU MunichDepartment of Internal Medicine III, University Hospital, LMU MunichAbstract Background The prognostic and predictive value of obesity and sarcopenia remains poorly defined in patients with high-risk soft tissue sarcoma (HR-STS). We sought to correlate clinical outcomes with CT-based body composition parameters in patients with HR-STS undergoing a multimodal preoperative therapy. The impact of radiologic and histopathologic response to preoperative treatment was correlated with individual fat and muscle distribution. Methods Patients with locally advanced non-abdominal HR-STS and treatment with preoperative chemotherapy + regional hyperthermia (RHT) +/- radiotherapy (RT) followed by surgery between 2015 and 2022 were retrospectively evaluated. Body composition parameters measured on baseline CT scans were correlated with clinical outcomes including event-free survival (EFS) and overall survival (OS) as well as radiologic and histopathologic treatment response. Results A total of 85 patients were included. Body composition parameters showed no significant correlation with radiologic or histopathologic treatment response. High total fat indices such as the total fat index (TFI, HR 3.56, p = 0.005) and high total fat to muscle ratio (FMR, HR 3.22, p = 0.020) were strongly associated with poor OS. Parameters for sarcopenia including skeletal muscle index (SMI) were not significantly linked to survival outcomes. Conclusion High fat indices and a high FMR are strong predictors of poor OS in patients with HR-STS. Larger studies are warranted to further clarify the prognostic impact of sarcopenia and the predictive value of body composition parameters on preoperative treatment response.https://doi.org/10.1186/s12885-025-14050-xRECISTEORTC-STBSGChemotherapyRegional hyperthermiaSoft tissue sarcomaSkeletal muscle index
spellingShingle Luc M. Berclaz
Dorit Di Gioia
Michael Völkl
Vindi Jurinovic
Alexander Klein
Hans Roland Dürr
Thomas Knösel
Bianca Teodorescu
Stefan Enßle
Michaela Rippl
Michael von Bergwelt-Baildon
Wolfgang G. Kunz
Lars H. Lindner
Anton Burkhard-Meier
The impact of CT-based adipose tissue distribution and sarcopenia on treatment outcomes in patients with high-risk soft tissue sarcoma
BMC Cancer
RECIST
EORTC-STBSG
Chemotherapy
Regional hyperthermia
Soft tissue sarcoma
Skeletal muscle index
title The impact of CT-based adipose tissue distribution and sarcopenia on treatment outcomes in patients with high-risk soft tissue sarcoma
title_full The impact of CT-based adipose tissue distribution and sarcopenia on treatment outcomes in patients with high-risk soft tissue sarcoma
title_fullStr The impact of CT-based adipose tissue distribution and sarcopenia on treatment outcomes in patients with high-risk soft tissue sarcoma
title_full_unstemmed The impact of CT-based adipose tissue distribution and sarcopenia on treatment outcomes in patients with high-risk soft tissue sarcoma
title_short The impact of CT-based adipose tissue distribution and sarcopenia on treatment outcomes in patients with high-risk soft tissue sarcoma
title_sort impact of ct based adipose tissue distribution and sarcopenia on treatment outcomes in patients with high risk soft tissue sarcoma
topic RECIST
EORTC-STBSG
Chemotherapy
Regional hyperthermia
Soft tissue sarcoma
Skeletal muscle index
url https://doi.org/10.1186/s12885-025-14050-x
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