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Eide AJ, Halle MK, Lura N, Fasmer KE, Wagner-Larsen K, Forsse D, Bertelsen BI, Salvesen Ø, Krakstad C, Haldorsen IS. Visceral fat percentage for prediction of outcome in uterine cervical cancer. Gynecol Oncol 2023; 176:62-68. [PMID: 37453220 DOI: 10.1016/j.ygyno.2023.06.581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 06/28/2023] [Accepted: 06/30/2023] [Indexed: 07/18/2023]
Abstract
OBJECTIVE The prognostic role of adiposity in uterine cervical cancer (CC) is largely unknown. Abdominal fat distribution may better reflect obesity than body mass index. This study aims to describe computed tomography (CT)-assessed abdominal fat distribution in relation to clinicopathologic characteristics, survival, and tumor gene expression in CC. METHODS The study included 316 CC patients diagnosed during 2004-2017 who had pre-treatment abdominal CT. CT-based 3D segmentation of total-, subcutaneous- and visceral abdominal fat volumes (TAV, SAV and VAV) allowed for calculation of visceral fat percentage (VAV% = VAV/TAV). Liver density (LD) and waist circumference (at L3/L4-level) were also measured. Associations between CT-derived adiposity markers, clinicopathologic characteristics and disease-specific survival (DSS) were explored. Gene set enrichment of primary tumors were examined in relation to fat distribution in a subset of 108 CC patients. RESULTS High TAV, VAV and VAV% and low LD were associated with higher age (≥44 yrs.; p ≤ 0.017) and high International Federation of Gynecology and Obstetrics (FIGO) (2018) stage (p ≤ 0.01). High VAV% was the only CT-marker predicting high-grade histology (p = 0.028), large tumor size (p = 0.016) and poor DSS (HR 1.07, p < 0.001). Patients with high VAV% had CC tumors that exhibited increased inflammatory signaling (false discovery rate [FDR] < 5%). CONCLUSIONS High VAV% is associated with high-risk clinical features and predicts reduced DSS in CC patients. Furthermore, patients with high VAV% had upregulated inflammatory tumor signaling, suggesting that the metabolic environment induced by visceral adiposity contributes to tumor progression in CC.
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Affiliation(s)
- Agnes J Eide
- Department of Radiology, Mohn Medical Imaging and Visualization Centre MMIV, Haukeland University Hospital, Bergen, Norway; Section for Radiology, Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Mari K Halle
- Department of Obstetrics and Gynecology, Haukeland University Hospital, Bergen, Norway; Centre for Cancer Biomarkers CCBIO, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Njål Lura
- Department of Radiology, Mohn Medical Imaging and Visualization Centre MMIV, Haukeland University Hospital, Bergen, Norway; Section for Radiology, Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Kristine E Fasmer
- Department of Radiology, Mohn Medical Imaging and Visualization Centre MMIV, Haukeland University Hospital, Bergen, Norway; Section for Radiology, Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Kari Wagner-Larsen
- Department of Radiology, Mohn Medical Imaging and Visualization Centre MMIV, Haukeland University Hospital, Bergen, Norway; Section for Radiology, Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - David Forsse
- Department of Obstetrics and Gynecology, Haukeland University Hospital, Bergen, Norway; Centre for Cancer Biomarkers CCBIO, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Bjørn I Bertelsen
- Department of Pathology, Haukeland University Hospital, Bergen, Norway
| | - Øyvind Salvesen
- Clinical Research Unit, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Camilla Krakstad
- Department of Obstetrics and Gynecology, Haukeland University Hospital, Bergen, Norway; Centre for Cancer Biomarkers CCBIO, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Ingfrid S Haldorsen
- Department of Radiology, Mohn Medical Imaging and Visualization Centre MMIV, Haukeland University Hospital, Bergen, Norway; Section for Radiology, Department of Clinical Medicine, University of Bergen, Bergen, Norway.
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van den Bosch AAS, Pijnenborg JMA, Romano A, Winkens B, van der Putten LJM, Kruitwagen RFPM, Werner HMJ. The impact of adipose tissue distribution on endometrial cancer: a systematic review. Front Oncol 2023; 13:1182479. [PMID: 37313459 PMCID: PMC10258319 DOI: 10.3389/fonc.2023.1182479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 05/11/2023] [Indexed: 06/15/2023] Open
Abstract
Introduction Endometrial cancer (EC) is the most common gynecological cancer with a rising incidence, attributed to advanced life expectancy and obesity. Adipose tissue (AT) is an important endocrine organ, and its metabolic activity is affected by the different anatomical distribution or locations. AT distribution influences a number of diseases. In EC, it remains unclear whether the type of AT distribution affects development or prognosis. This systematic review aimed to determine whether AT distribution is associated with patient characteristics, disease characteristics, and patient prognosis in EC. Materials and methods A search was conducted in Medline, MEDLINE EMBASE, and Cochrane Library. We included studies that enrolled patients with EC with any histological subtype and that distinguished between the visceral and subcutaneous AT compartment. In eligible studies, correlative analyses were performed for all outcome measures and AT distribution. Results Eleven retrospective studies were included, with a wide range of measurements for the visceral and subcutaneous AT compartments. AT distribution was found to be significantly correlated to a number of relevant (disease) characteristics including obesity measures, histological subtype, lymph node metastasis, and sex steroid levels. Five studies reported on survival parameters including overall survival, progression-free survival and disease-specific survival, and they found that increased VAT volume was statistically significantly associated with a worse survival. Discussion/conclusion This review demonstrates that there are significant correlations between AT distribution and prognosis, body mass index, sex steroid levels, and disease characteristics like histology. Well-designed, prospective, and larger-scale studies are needed to pinpoint these differences more specifically and understand how it can add in prediction and even therapy in EC.
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Affiliation(s)
- Anouk A. S. van den Bosch
- Department of Obstetrics and Gynecology, GROW-School for Oncology and Reproduction, Maastricht University Medical Centre, Maastricht, Netherlands
| | | | - Andrea Romano
- Department of Obstetrics and Gynecology, GROW-School for Oncology and Reproduction, Maastricht University Medical Centre, Maastricht, Netherlands
| | - Bjorn Winkens
- Department of Methodology and Statistics, Maastricht University, Maastricht, Netherlands
| | | | - Roy F. P. M. Kruitwagen
- Department of Obstetrics and Gynecology, GROW-School for Oncology and Reproduction, Maastricht University Medical Centre, Maastricht, Netherlands
| | - Henrica M. J. Werner
- Department of Obstetrics and Gynecology, GROW-School for Oncology and Reproduction, Maastricht University Medical Centre, Maastricht, Netherlands
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Cheng Y, Wang Z, Jia X, Zhou R, Wang J. Association Between Abdominal Adipose Tissue Distribution and Risk of Endometrial Cancer: A Case-Control Study. Clin Med Insights Oncol 2022; 16:11795549221140776. [PMCID: PMC9742701 DOI: 10.1177/11795549221140776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 11/07/2022] [Indexed: 12/14/2022] Open
Abstract
Background: Obesity contributes to endometrial cancer (EC). However, it is not clear whether the distribution of adipose tissue affects the occurrence of endometrial carcinoma. This study aimed to evaluate the relationship between abdominal adipose tissue distribution and EC. Methods: We designed a case-control study with 115 women with EC and a control group. The total abdominal adipose tissue, visceral adipose tissue, and subcutaneous adipose tissue were measured by single slice computerized tomography at the level of umbilicus. Univariate and multivariate logistic regression models were used to calculate odds ratios (ORs) for the risk of EC associated with adipose tissue distribution. Furthermore, we analyzed the correlation between adipose tissue distribution and clinicopathologic features of endometrial carcinoma. Results: Multivariate analysis showed that a larger visceral adipose tissue ratio was associated with an increased risk of EC after adjusting for body mass index (BMI) and diabetes (OR = 1.046, 95% confidence interval = [1.008-1.079]). The ratio of International Federation of Obstetrics and Gynecology (FIGO) stage I and type I EC was higher in EC patients with larger visceral adipose tissue (84.5% vs 63.2%, P = .009; 91.4% vs 75.4%, P = .021). There was a higher positive ratio of progesterone receptor in EC patients with a larger subcutaneous adipose tissue area (91.2% vs 77.6%; P = .044). Conclusions: Higher visceral adipose tissue ratio, independent of BMI, was associated with an increased risk of EC. Therefore, this study demonstrated that women with normal BMI, but abnormal abdominal adipose tissue distribution, have an increased risk for EC.
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Affiliation(s)
- Yuan Cheng
- Department of Gynecology and Obstetrics, Peking University People’s Hospital, Beijing, China
| | - Zhongyu Wang
- Department of Gynecology and Obstetrics, Peking University People’s Hospital, Beijing, China
| | - Xiaoxuan Jia
- Department of Radiology, Peking University People’s Hospital, Beijing, China
| | - Rong Zhou
- Department of Gynecology and Obstetrics, Peking University People’s Hospital, Beijing, China
| | - Jianliu Wang
- Department of Gynecology and Obstetrics, Peking University People’s Hospital, Beijing, China,Jianliu Wang, Department of Gynecology and Obstetrics, Peking University People’s Hospital, Beijing 100044, China.
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Buckley E, Mullen MM, Nizamuddin RA, Stein JH, Kuroki LM, Fuh KC, Hagemann AR, McCourt CK, Mutch D, Khabele D, Powell MA, Ippolito JE, Thaker PH. High visceral fat to subcutaneous fat ratios portend a poor prognosis in patients with advanced endometrial cancer. Gynecol Oncol 2022; 167:496-501. [PMID: 36180305 PMCID: PMC10836416 DOI: 10.1016/j.ygyno.2022.09.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 09/05/2022] [Accepted: 09/09/2022] [Indexed: 01/05/2023]
Abstract
OBJECTIVES Visceral adiposity has been established as a predictor of outcomes in various cancers. We aimed to determine the association of radiographic measurements of visceral fat with clinical outcomes in patients with endometrial cancer. METHODS A retrospective review of patients with stage III-IV endometrial cancer who underwent surgery between 2004 and 2014 was performed. Visceral adipose tissue (VAT), subcutaneous adipose tissue (SAT), and total adipose tissue (TAT;VAT+SAT) were assessed on preoperative computed tomography (CT) scans. Exploratory analysis was performed to establish the optimal cut-off values for VAT, SAT, and TAT to identify patients with poor prognostic body composition. Survival rates were analyzed using Kaplan-Meier analysis, log-rank tests, and cox-regression. RESULTS Eighty-three patients were included. Forty-two (51%) patients had a low VAT/SAT ratio (<0.45) and 41 (49.4%) had a high VAT/SAT ratio (>0.45). There were no significant differences in demographics between the groups. The mean VAT, SAT, and TAT were 176.3 cm2, 379.3 cm2, and 555.3 cm2 respectively. Compared to patients with low VAT/SAT ratios, patients with high VAT/SAT ratios had a shorter recurrence-free survival (median 29.6 vs 32.3 months, P = 0.01) and shorter overall survival (median 56 vs 93.7 months, P = 0.03). CONCLUSIONS Visceral fat measurements are predictive of outcomes in patients with advanced stage endometrial cancer. Specifically, VAT to SAT ratios are predictive of overall survival. Future studies should be pursued to identify potential therapeutic targets and biological mechanisms that underlie obesity's relationship with endometrial cancer.
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Affiliation(s)
- Elizabeth Buckley
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Washington University School of Medicine, and Alvin J. Siteman Cancer Center, St. Louis, MO, United States of America
| | - Mary M Mullen
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Washington University School of Medicine, and Alvin J. Siteman Cancer Center, St. Louis, MO, United States of America
| | - Rehan A Nizamuddin
- Department of Radiology, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Jonathan H Stein
- Department of Radiology, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Lindsay M Kuroki
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Washington University School of Medicine, and Alvin J. Siteman Cancer Center, St. Louis, MO, United States of America
| | - Katherine C Fuh
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Washington University School of Medicine, and Alvin J. Siteman Cancer Center, St. Louis, MO, United States of America
| | - Andrea R Hagemann
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Washington University School of Medicine, and Alvin J. Siteman Cancer Center, St. Louis, MO, United States of America
| | - Carolyn K McCourt
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Washington University School of Medicine, and Alvin J. Siteman Cancer Center, St. Louis, MO, United States of America
| | - David Mutch
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Washington University School of Medicine, and Alvin J. Siteman Cancer Center, St. Louis, MO, United States of America
| | - Dineo Khabele
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Washington University School of Medicine, and Alvin J. Siteman Cancer Center, St. Louis, MO, United States of America
| | - Matthew A Powell
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Washington University School of Medicine, and Alvin J. Siteman Cancer Center, St. Louis, MO, United States of America
| | - Joseph E Ippolito
- Department of Radiology, Washington University School of Medicine, St. Louis, MO, United States of America; Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, St. Louis, MO, United States of America.
| | - Premal H Thaker
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Washington University School of Medicine, and Alvin J. Siteman Cancer Center, St. Louis, MO, United States of America.
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A hint for the obesity paradox and the link between obesity, perirenal adipose tissue and Renal Cell Carcinoma progression. Sci Rep 2022; 12:19956. [PMID: 36402906 PMCID: PMC9675816 DOI: 10.1038/s41598-022-24418-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 11/15/2022] [Indexed: 11/21/2022] Open
Abstract
Increasing evidence supports a role for local fat depots in cancer outcomes. Despite the robust positive association of obesity with renal cell carcinoma (RCCa) diagnosis, increased adiposity is inversely related to RCCa oncological outcomes. Here, we sought to ascertain whether imagiologically assessed local fat depots associate with RCCa progression and survival and account for this apparent paradox. A retrospective cohort of renal carcinoma patients elective for nephrectomy (n = 137) were included. Beyond baseline clinicopathological characteristics, computed tomography (CT)-scans at the level of renal hilum evaluated areas and densities of different adipose tissue depots (perirenal, subcutaneous, visceral) and skeletal muscle (erector spinae, psoas and quadratus lumborum muscles) were analyzed. Univariate and multivariable Cox proportional hazards models were estimated following empirical analysis using stepwise Cox regression. Age, visceral adipose tissue (VAT) area and body mass index (BMI) predicted tumour-sided perirenal fat area (R2 = 0.584), which presented upregulated UCP1 expression by 27-fold (P = 0.026) and smaller adipocyte areas, compared with subcutaneous depot. Multivariate analyses revealed that increased area of perirenal adipose tissue (PRAT) on the contralateral and tumour side associate with improved progression-free survival (HR = 0.3, 95CI = 0.1-0.8, P = 0.019) and overall survival (HR = 0.3, 95CI = 0.1-0.7, P = 0.009). PRAT measurements using CT, might become a possible tool, well correlated with other measures of obesity such as VAT and BMI, that will improve determination of obesity and contribute to assess the risk for disease progression and mortality in renal cancer patients. Present data supports the obesity paradox in RCCa, assumed that larger PRAT areas seem to protect from disease progression and death.
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CT-Derived Body Composition Assessment as a Prognostic Tool in Oncologic Patients: From Opportunistic Research to Artificial Intelligence-Based Clinical Implementation. AJR Am J Roentgenol 2022; 219:671-680. [PMID: 35642760 DOI: 10.2214/ajr.22.27749] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
CT-based body composition measures are well established in research settings as prognostic markers in oncologic patients. Numerous retrospective studies have shown the role of objective measurements extracted from abdominal CT images of skeletal muscle, abdominal fat, and bone mineral density in providing more accurate assessments of frailty and cancer cachexia in comparison with traditional clinical methods. Quantitative CT-based measurements of liver fat and aortic atherosclerotic calcification have received relatively less attention in cancer care but also provide prognostic information. Patients with cancer routinely undergo serial CT scans for staging, treatment response, and surveillance, providing the opportunity for performing quantitative body composition assessment as part of routine clinical care. The emergence of fully automated artificial intelligence-based segmentation and quantification tools to replace earlier time-consuming manual and semi-automated methods for body composition analysis will allow these opportunistic measures to transition from the research realm to clinical practice. With continued investigation, the measurements may ultimately be applied to achieve more precise risk stratification as a component of personalized oncologic care.
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Potential of blood-based biomarker approaches in endometrium and breast cancer: a case-control comparison study. Arch Gynecol Obstet 2022; 306:1623-1632. [PMID: 35284957 PMCID: PMC9519681 DOI: 10.1007/s00404-022-06482-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 02/18/2022] [Indexed: 02/08/2023]
Abstract
Purpose Endometrial carcinoma is the second most common gynecological malignancy. Until today lacking a screening tool. A blood-based biomarker could help address this need. Methods The expression levels of 30 acylcarnitines, 18 amino acids, 6 miRNAs, and 7 DNA methylation sites were measured in blood samples from 331 women (20 EC, 14 benign uterine lesions (benign), 140 breast cancers (BC), 157 controls). Areas under the ROC curves (AUC), sensitivity (sens.) and specificity (spec.) were computed to identify the variables best distinguishing. Results The best top ten markers for the four comparisons (cancer vs. cancer-free; EC vs. BC, EC vs. controls; EC vs. benign), were identified via AUC. Malonylcarnitine distinguished best patients with EC from controls (AUC: 0.827, sens. 80%, spec. 73.1%) or BC (AUC: 0.819, sens. 84.3%, spec. 80%) being most notable. Tryptophan best differentiated benign from EC (AUC: 0.846, sens. 70%, spec. 92.9%). Conclusions The levels of the analyzed blood markers yielded promising results in the detection of EC and warrant further evaluation. Supplementary Information The online version contains supplementary material available at 10.1007/s00404-022-06482-8.
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Sutton EH, Plyta M, Fragkos K, Di Caro S. Pre-treatment sarcopenic assessments as a prognostic factor for gynaecology cancer outcomes: systematic review and meta-analysis. Eur J Clin Nutr 2022; 76:1513-1527. [PMID: 35194194 DOI: 10.1038/s41430-022-01085-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 01/04/2022] [Accepted: 01/17/2022] [Indexed: 12/24/2022]
Abstract
INTRODUCTION Gynaecology cancers, including ovarian (OC), endometrial (EC), and cervical (CC), are prevalent with high mortality. Sarcopenia is found in 38.7% of cancer patients, adversely affecting prognosis. Computed tomography (CT) is performed routinely in oncology, yet CT assessments of sarcopenia are not commonly used to measure prognosis. This systematic review and meta-analysis aimed to evaluate the prognostic potential of pre-treatment sarcopenia assessments on overall survival (OS) and progression free survival (PFS) in gynaecology cancer. METHODOLOGY Four electronic databases were systematically searched from 2000 to May 2020 in English: Ovid Medline, EMBASE, Web of Science, and CINAHL plus. Titles and abstracts were screened, eligible full-texts were reviewed, and data from included studies was extracted. Meta-analyses were conducted on homogenous survival data, heterogenous data were narratively reported. RESULTS The initial search yielded 767 results; 27 studies were included in the systematic review (n = 4286), all published between 2015 and 2020. Meta-analysis of unadjusted results revealed a negative effect of pre-treatment sarcopenia on OS in OC (HR: 1.40, 1.20-1.64, p < 0.0001) (n = 10), EC (HR: 1.42, 0.97-2.10, p = 0.07) (n = 4) and CC (HR: 1.10, 0.93-1.31, p = 0.28) (n = 5), and a negative effect on PFS in OC (HR: 1.28, 1.11-1.46, p = 0.0005) (n = 8), EC (HR: 1.51, 1.03-2.20, p = 0.03) (n = 2) and CC (HR: 1.14, 0.85-1.53, p = 0.37) (n = 2). Longitudinal analysis indicated negative effects of muscle loss on survival. Overall, there was a high risk of bias. CONCLUSION Pre-treatment sarcopenia negatively affected survival in gynaecology cancers. Incorporating such assessments into cancer management may be beneficial. Heterogeneity in sarcopenia assessments makes data interpretation challenging. Further research in prospective studies is required.
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Affiliation(s)
| | - M Plyta
- University College London, London, UK
| | - K Fragkos
- University College London, London, UK
| | - S Di Caro
- University College London, London, UK
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The comparison of the prognostic value of scored Patient Generated Subjective Global Assessment and Computed Tomography measured sarcopenia in patients with gynecological cancer. Clin Nutr ESPEN 2022; 48:253-258. [DOI: 10.1016/j.clnesp.2022.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 12/27/2021] [Accepted: 02/06/2022] [Indexed: 11/20/2022]
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Tranoulis A, Kwong FLA, Lakhiani A, Georgiou D, Yap J, Balega J. Prevalence of computed tomography-based sarcopenia and the prognostic value of skeletal muscle index and muscle attenuation amongst women with epithelial ovarian malignancy: A systematic review and meta-analysis. EUROPEAN JOURNAL OF SURGICAL ONCOLOGY 2022; 48:1441-1454. [DOI: 10.1016/j.ejso.2022.02.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 02/16/2022] [Accepted: 02/21/2022] [Indexed: 12/21/2022]
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Kokts-Porietis RL, Elmrayed S, Brenner DR, Friedenreich CM. Obesity and mortality among endometrial cancer survivors: A systematic review and meta-analysis. Obes Rev 2021; 22:e13337. [PMID: 34476900 DOI: 10.1111/obr.13337] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 07/29/2021] [Accepted: 08/04/2021] [Indexed: 01/16/2023]
Abstract
Excess body fat is a major risk factor for endometrial cancer incidence, but its impact on recurrence and survival remains unclear. The aim of this systematic review and meta-analysis was to assess the association between excess body fat with recurrence, cancer-specific, and all-cause mortality among endometrial cancer survivors. We searched MEDLINE and EMBASE databases up to July 2021. Risk of bias was assessed with the Ottawa Newcastle Scale. Random effects models estimated pooled hazard ratios for the main associations between body mass index (BMI) and survival outcomes and stratified by endometrial cancer type. Potential heterogeneity and publication bias were evaluated with sensitivity analyses, funnel plots, and Egger's test. Forty-six studies were included, of which 45 estimated body fat with BMI and six used direct waist circumference measures or CT/MRI scans. Higher BMI (≥30 kg/m2 ) was associated with increased all-cause mortality (HR = 1.34, 95%CI = 1.12-1.59) and recurrence (HR = 1.28, 95%CI = 1.06-1.56). In sub-group analysis, associations between higher BMI and all-cause mortality were observed for both Types I and II survivors, while recurrence associations were only significant among Type I cases. Obesity at endometrial cancer diagnosis was associated with increased cancer recurrence and all-cause mortality among endometrial cancer survivors but not endometrial cancer-specific mortality.
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Affiliation(s)
- Renée L Kokts-Porietis
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Department of Cancer Epidemiology and Prevention Research, Cancer Care Alberta, Alberta Health Services, Calgary, Alberta, Canada
| | - Seham Elmrayed
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Darren R Brenner
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Department of Cancer Epidemiology and Prevention Research, Cancer Care Alberta, Alberta Health Services, Calgary, Alberta, Canada.,Department of Oncology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Christine M Friedenreich
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Department of Cancer Epidemiology and Prevention Research, Cancer Care Alberta, Alberta Health Services, Calgary, Alberta, Canada.,Department of Oncology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
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12
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Donkers H, Fasmer KE, Mcgrane J, Pijnenborg JMA, Bekkers R, Haldorsen IS, Galaal K. The role of sarcopenic obesity in high-grade endometrial cancer. Int J Gynaecol Obstet 2021; 154:248-255. [PMID: 33445216 DOI: 10.1002/ijgo.13591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 11/19/2020] [Accepted: 01/11/2021] [Indexed: 12/24/2022]
Abstract
OBJECTIVE To investigate the relationship between obesity and sarcopenia in relation to overall survival (OS) and disease-specific survival (DSS) in high-grade endometrial cancer patients. METHODS We conducted a retrospective study in women diagnosed with high-grade endometrial cancer (EC) between February 2006 and August 2017 in the Royal Cornwall Hospital who had abdominal computerized tomography (CT)-scan as part of routine staging work-up. Sarcopenia was assessed by measuring psoas-, paraspinal- and abdominal wall muscles on CT and defined by skeletal muscle index ≤41 cm2 /m2 . Sarcopenic obesity was defined as sarcopenia combined with body mass index (BMI) ≥30 kg/m2 . RESULTS A total of 176 patients with median age of 70 years and median BMI of 29.4 kg/m2 were included in the study. The majority of patients (38%) had endometrioid type histology. Sarcopenia was not associated with OS (P = 0.951) or DSS (P = 0.545) However, in multivariate analysis, sarcopenic obesity was associated with reduced OS in endometrioid endometrial cancer (EEC) patients (P = 0.048). CONCLUSION Sarcopenic obesity is associated with OS in high-grade EEC patients, while sarcopenia without obesity is not related to OS or DSS in high-grade EC. In non-endometrioid endometrial cancer, there is no association between sarcopenic obesity and survival.
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Affiliation(s)
| | - Kristine E Fasmer
- Department of Radiology, Mohn Medical Imaging and Visualization Centre, Haukeland University Hospital Bergen, Bergen, Norway.,Section for Radiology, Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | | | - Johanna M A Pijnenborg
- Department of Obstetrics & Gynecology, Radboud Institute for Health Science, Radboud University medical center, Nijmegen, The Netherlands
| | - Ruud Bekkers
- Grow school for Oncology and developmental Biology, Maastricht University.,Catharina Hospital, Eindhoven, The Netherlands
| | - Ingfrid S Haldorsen
- Department of Radiology, Mohn Medical Imaging and Visualization Centre, Haukeland University Hospital Bergen, Bergen, Norway.,Section for Radiology, Department of Clinical Medicine, University of Bergen, Bergen, Norway
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13
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The effects of neoadjuvant chemotherapy and interval debulking surgery on body composition in patients with ovarian cancer. JCSM CLINICAL REPORTS 2021; 6:11-16. [PMID: 34485822 PMCID: PMC8415724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND The aim of this study was to quantify changes in body composition during ovarian cancer treatment and relate these changes to rates of complete gross resection (CGR). METHODS One hundred two patients with stage III or IV ovarian cancer who underwent neoadjuvant chemotherapy (NACT) followed by interval debulking surgery were a part of a prospectively collected database that included computed tomography scans at three time points-diagnosis, following NACT, and following debulking surgery. Skeletal muscle, visceral adipose, and subcutaneous adipose tissue volumes were obtained from a 30-mm volumetric slab beginning at the third lumbar vertebrae. RESULTS Following NACT, skeletal muscle volume was significantly reduced (352.5 to 335.0 cm3, P < 0.001), whereas adiposity was unchanged. Body mass index (BMI) and skeletal muscle volume were significantly lower in patients who achieved CGR (P < 0.05). When these patients were stratified by BMI, the significant association of skeletal muscle to CGR was limited to patients with a BMI < 25 kg/m2 (P = 0.007). CONCLUSION Skeletal muscle volume was significantly reduced in patients undergoing NACT for ovarian cancer. Non-overweight patients were more likely to achieve CGR if they had lower skeletal muscle volume. Use of volumetric-based measurement for ascertaining body composition should be explored further.
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14
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Donkers H, Fasmer KE, Mcgrane J, Pijnenborg JMA, Bekkers R, Haldorsen IS, Galaal K. Obesity and visceral fat: Survival impact in high-grade endometrial cancer. Eur J Obstet Gynecol Reprod Biol 2020; 256:425-432. [PMID: 33307325 DOI: 10.1016/j.ejogrb.2020.11.050] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 11/14/2020] [Accepted: 11/18/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Obesity is an important risk factor for the development of endometrial cancer (EC). Recent data showed that body fat distribution might be more relevant than Body Mass Index (BMI). High visceral fat percentage was shown to be an independent predictor for survival in EC, but mainly included grade 1-2 EC. OBJECTIVE To evaluate body fat distribution and its relation to outcome in high-grade endometrial cancer. METHODS Retrospective study in women diagnosed with high-grade EC between February 2006 and August 2017 at the Royal Cornwall Hospital who had abdominal CT-scan as part of routine diagnostic work-up. Subcutaneous abdominal fat volumes and visceral abdominal fat volumes were quantified based on CT-scan measurements, and visceral fat percentage calculated. RESULTS A total of 176 patients with high-grade EC were included. The median age was 70 years and median BMI was 29.4 kg/m2. The majority of patients had non-endometrioid endometrial cancer (NEEC; 62 %). High visceral fat percentage was associated with poor overall- and disease-specific survival (p = 0.006 and p = 0.026 respectively) in NEEC patients, but not in high-grade endometrioid EC (EEC). The most frequent obesity comorbidities hypertension and diabetes mellitus were significantly associated with high BMI and high visceral fat percentage. CONCLUSION In high-grade EC, high visceral fat percentage was an independent predictor of poor survival only in NEEC. The strong correlation between high visceral fat and obesity-related comorbidities might be reflective of an unhealthy macroenvironment.
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Affiliation(s)
- Hannah Donkers
- Royal Cornwall Hospital NHS Trust, Truro, Cornwall, United Kingdom
| | - Kristine E Fasmer
- Mohn Medical Imaging and Visualization Centre, Department of Radiology, Haukeland University Hospital Bergen, Bergen, Norway; Section for Radiology, Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - John Mcgrane
- Royal Cornwall Hospital NHS Trust, Truro, Cornwall, United Kingdom
| | - Johanna M A Pijnenborg
- Department of Obstetrics & Gynecology, Radboud Institute for Health Science, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Ruud Bekkers
- Grow School for Oncology and Developmental Biology, Maastricht University, the Netherlands; Catharina Hospital, Eindhoven, the Netherlands
| | - Ingfrid S Haldorsen
- Mohn Medical Imaging and Visualization Centre, Department of Radiology, Haukeland University Hospital Bergen, Bergen, Norway; Section for Radiology, Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Khadra Galaal
- Royal Cornwall Hospital NHS Trust, Truro, Cornwall, United Kingdom.
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15
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Vitarello J, Goncalves MD, Zhou QC, Iasonos A, Halpenny DF, Plodkowski A, Schwitzer E, Mueller JJ, Zivanovic O, Jones LW, Cadoo KA, Konner JA. The effects of neoadjuvant chemotherapy and interval debulking surgery on body composition in patients with ovarian cancer. JCSM CLINICAL REPORTS 2020. [DOI: 10.1002/crt2.15] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Affiliation(s)
- John Vitarello
- Department of Medicine Beth Israel Deaconess Medical Center Boston MA USA
| | - Marcus D. Goncalves
- Division of Endocrinology, Department of Medicine Weill Cornell Medicine New York NY USA
| | - Qin C. Zhou
- Department of Epidemiology and Biostatistics Memorial Sloan Kettering Cancer Center New York NY USA
| | - Alexia Iasonos
- Department of Epidemiology and Biostatistics Memorial Sloan Kettering Cancer Center New York NY USA
| | - Darragh F. Halpenny
- Department of Radiology Memorial Sloan Kettering Cancer Center New York NY USA
| | - Andrew Plodkowski
- Department of Radiology Memorial Sloan Kettering Cancer Center New York NY USA
| | - Emily Schwitzer
- Cardiology Service, Department of Medicine Memorial Sloan Kettering Cancer Center New York NY USA
| | - Jennifer J. Mueller
- Gynecology Service, Department of Surgery Memorial Sloan Kettering Cancer Center New York NY USA
- Department of Obstetrics and Gynecology Weill Cornell Medical Center New York NY USA
| | - Oliver Zivanovic
- Gynecology Service, Department of Surgery Memorial Sloan Kettering Cancer Center New York NY USA
- Department of Obstetrics and Gynecology Weill Cornell Medical Center New York NY USA
| | - Lee W. Jones
- Cardiology Service, Department of Medicine Memorial Sloan Kettering Cancer Center New York NY USA
| | - Karen A. Cadoo
- Department of Medicine Beth Israel Deaconess Medical Center Boston MA USA
| | - Jason A. Konner
- Department of Medicine Beth Israel Deaconess Medical Center Boston MA USA
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16
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Rinninella E, Fagotti A, Cintoni M, Raoul P, Scaletta G, Scambia G, Gasbarrini A, Mele MC. Skeletal muscle mass as a prognostic indicator of outcomes in ovarian cancer: a systematic review and meta-analysis. Int J Gynecol Cancer 2020; 30:654-663. [PMID: 32241875 DOI: 10.1136/ijgc-2020-001215] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 02/01/2020] [Accepted: 02/05/2020] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Muscle mass plays a key role in predicting clinical outcomes in cancer. This systematic review and meta-analysis aimed to evaluate whether computed tomography (CT) scan indexes of muscle mass quantity and quality could be used as prognostic factors in ovarian cancer. METHODS Three electronic bibliographic databases (MEDLINE, Web of Science, and Cochrane Central Register of Controlled Trials) were used to conduct a systematic literature search from inception to January 2020. The primary outcome was overall survival. Pooled analyses of hazard ratios (HRs) and 95% confidence intervals (CIs) were performed with Review Manager 5.3. Heterogeneity was assessed by measuring inconsistency (I2 based on the χ2 test). Secondary outcomes included progression free survival, disease free survival, postoperative complications, and chemotoxicity. Study quality and quality of evidence were assessed. RESULTS A total of 15 studies were included in the systematic review, of which six studies (1226 patients) were included in the meta-analysis. Summary unadjusted HRs (HR 1.11, 95% CI 0.84 to 1.46, p=0.47) and adjusted HRs (HR 1.10, 95% CI 0.84 to 1.43, p=0.49) did not show a significant association between low skeletal muscle index and overall survival (p>0.05) in ovarian cancer. Instead, although the quality of evidence was low, pooled data of three studies, comprising 679 patients, showed a significant association between low skeletal muscle radiodensity and poor overall survival (HR 1.63, 95% CI 1.28 to 2.07, p<0.0001). Moreover, the heterogeneity between studies precluded the possibility of performing a meta-analysis and reaching conclusions for progression free survival, disease free survival, surgical complications, and chemotoxicity. CONCLUSIONS This work suggested that the measurement of skeletal muscle radiodensity by routine CT scan at diagnosis, with standardization of diagnostic criteria, could be a reliable tool to select at risk patients and to individualize effective nutritional strategies. However, prospective homogeneous studies with a larger number of patients are required to confirm these results.
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Affiliation(s)
- Emanuele Rinninella
- Clinical Nutrition Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy .,Research and Training Center in Human Nutrition, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Anna Fagotti
- Ovarian Cancer Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy.,Dipartimento di Scienze della vita e sanità pubblica, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Marco Cintoni
- Scuola di Specializzazione in Scienza dell'Alimentazione, University of Rome Tor Vergata, Rome, Italy
| | - Pauline Raoul
- Advanced Nutrition in Oncology Unit, Fondazione Policlinico Universitario A. Gemelli IRCSS, Rome, Italy
| | - Giuseppe Scaletta
- Gynecologic Oncology Unit, Fondazione Policlinico Universitario A. Gemelli IRCSS, Rome, Italy
| | - Giovanni Scambia
- Dipartimento di Scienze della vita e sanità pubblica, Università Cattolica del Sacro Cuore, Rome, Italy.,Gynecologic Oncology Unit, Fondazione Policlinico Universitario A. Gemelli IRCSS, Rome, Italy
| | - Antonio Gasbarrini
- Internal Medicine and Gastroenterology Unit, Policlinico Universitario Agostino Gemelli, Roma, Lazio, Italy.,Dipartimento di Medicina e chirurgia traslazionale, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Maria Cristina Mele
- Dipartimento di Medicina e chirurgia traslazionale, Università Cattolica del Sacro Cuore, Rome, Italy.,Advanced Nutrition in Oncology Unit, Policlinico Universitario Agostino Gemelli, Roma, Italy
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17
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Sánchez M, Castro-Eguiluz D, Luvián-Morales J, Jiménez-Lima R, Aguilar-Ponce JL, Isla-Ortiz D, Cetina L. Deterioration of nutritional status of patients with locally advanced cervical cancer during treatment with concomitant chemoradiotherapy. J Hum Nutr Diet 2019; 32:480-491. [PMID: 30938007 DOI: 10.1111/jhn.12649] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND In Mexico, 80% women with cervical cancer are diagnosed at locally advanced stages and are treated with concomitant chemoradiotherapy. The treatment modality and catabolic state confer a nutritional risk. The present study aimed to thoroughly evaluate the nutritional status and change in body composition of locally advanced cervical cancer (LACC) patients throughout treatment. METHODS An observational prospective study, carried out at the Mexican National Cancer Institute, included 55 LACC patients. Nutritional status was evaluated before, during and after treatment, using anthropometric, dietary and biochemical measurements. Body composition was analysed using computed tomography images obtained at the time of diagnosis and approximately 4 months after treatment completion. Clinical outcomes were associated with changes in body composition. RESULTS At the time of diagnosis, no patients were clinically malnourished, although 33.3% presented sarcopenia and most were overweight; by the end of treatment, 69% became clinically malnourished and 58% were sarcopenic. Average weight loss was 7.4 kg (P = 0.001). Adequacy of energy intake was reduced to 54%, obtained predominantly from carbohydrates. By the week 9, 62.8% patients became anemic and 34.5% had low albumin levels. Body composition analysis revealed that patients lost both, muscle and adipose tissues, although 27% patients were muscle depleted by the end of treatment. Patients who lost ≥10% skeletal muscle presented a higher tumour recurrence (hazard ratio = 2.957, P = 0.006) and a tendency towards diminished overall survival (hazard ratio = 2.572, not significant). CONCLUSIONS The nutritional status of cervical cancer patients deteriorates during treatment with concomitant chemoradiotherapy and, most importantly, muscle loss impacts the clinical outcome of patients.
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Affiliation(s)
- M Sánchez
- Department of Gynecology-Oncology, Instituto Nacional de Cancerología, Mexico City, Mexico
| | - D Castro-Eguiluz
- Consejo Nacional de Ciencia y Tecnología (CONACYT)- Department of Clinical Research, Instituto Nacional de Cancerología, Mexico City, Mexico
| | - J Luvián-Morales
- Department of Clinical Research, Instituto Nacional de Cancerología, Mexico City, Mexico
| | - R Jiménez-Lima
- Department of Clinical Research, Instituto Nacional de Cancerología, Mexico City, Mexico
| | - J L Aguilar-Ponce
- Department of Internal Medicine, Instituto Nacional de Cancerología, Mexico City, Mexico
| | - D Isla-Ortiz
- Department of Gynecology-Oncology, Instituto Nacional de Cancerología, Mexico City, Mexico
| | - L Cetina
- Department of Clinical Research, Instituto Nacional de Cancerología, Mexico City, Mexico
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18
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Faron A, Pieper CC, Schmeel FC, Sprinkart AM, Kuetting DLR, Fimmers R, Trebicka J, Schild HH, Meyer C, Thomas D, Luetkens JA. Fat-free muscle area measured by magnetic resonance imaging predicts overall survival of patients undergoing radioembolization of colorectal cancer liver metastases. Eur Radiol 2019; 29:4709-4717. [PMID: 30689036 DOI: 10.1007/s00330-018-5976-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 12/05/2018] [Accepted: 12/17/2018] [Indexed: 12/22/2022]
Abstract
OBJECTIVES To investigate the clinical potential of fat-free muscle area (FFMA) to predict outcome in patients with liver-predominant metastatic colorectal cancer (mCRC) undergoing radioembolization (RE) with 90Yttrium microspheres. METHODS Patients with mCRC who underwent RE in our center were included in this retrospective study. All patients received liver magnetic resonance imaging including standard T2-weighted images. The total erector spinae muscle area and the intramuscular adipose tissue area were measured at the level of the origin of the superior mesenteric artery and subtracted to calculate FFMA. Cutoff values for definition of low FFMA were 3644 mm2 in men and 2825 mm2 in women. The main outcome was overall survival (OS). For survival analysis, the Kaplan-Meier method and Cox regressions comparing various clinic-oncological parameters which potentially may affect OS were performed. RESULTS Seventy-seven patients (28 female, mean age 60 ± 11 years) were analyzed. Mean time between MRI and the following RE was 17 ± 31 days. Median OS after RE was 178 days. Patients with low FFMA had significantly shortened OS compared to patients with high FFMA (median OS: 128 vs. 273 days, p = 0.017). On multivariate Cox regression analysis, OS was best predicted by FFMA (hazard ratio (HR) 2.652; p < 0.001). Baseline bilirubin (HR 1.875; p = 0.030), pattern of tumor manifestation (HR 1.679; p = 0.001), and model of endstage liver disease (MELD) score (HR 1.164; p < 0.001) were also significantly associated with OS. CONCLUSIONS FFMA was associated with OS in patients receiving RE for treatment of mCRC and might be a new prognostic biomarker for survival prognosis. KEY POINTS • Fat-free muscle area (FFMA) as a measure of lean muscle area predicts survival in metastatic colorectal liver cancer following radioembolization. • FFMA can easily be assessed from routine pre-interventional liver magnetic resonance imaging. • FFMA might be a new promising biomarker for assessment of sarcopenia.
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Affiliation(s)
- Anton Faron
- Department of Radiology, University of Bonn, Sigmund-Freud-Str. 25, 53127, Bonn, Germany
| | - Claus C Pieper
- Department of Radiology, University of Bonn, Sigmund-Freud-Str. 25, 53127, Bonn, Germany
| | - Frederic C Schmeel
- Department of Radiology, University of Bonn, Sigmund-Freud-Str. 25, 53127, Bonn, Germany
| | - Alois M Sprinkart
- Department of Radiology, University of Bonn, Sigmund-Freud-Str. 25, 53127, Bonn, Germany
| | - Daniel L R Kuetting
- Department of Radiology, University of Bonn, Sigmund-Freud-Str. 25, 53127, Bonn, Germany
| | - Rolf Fimmers
- Department of Medical Biometry, Informatics, and Epidemiology, University of Bonn, Sigmund-Freud-Str. 25, 53127, Bonn, Germany
| | - Jonel Trebicka
- Department of Internal Medicine I, University of Bonn, Sigmund-Freud-Str. 25, 53127, Bonn, Germany.,European Foundation for the Study of Chronic Liver Failure, Barcelona, Spain.,Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark.,Institute for Bioengineering of Catalonia, Barcelona, Spain
| | - Hans H Schild
- Department of Radiology, University of Bonn, Sigmund-Freud-Str. 25, 53127, Bonn, Germany
| | - Carsten Meyer
- Department of Radiology, University of Bonn, Sigmund-Freud-Str. 25, 53127, Bonn, Germany
| | - Daniel Thomas
- Department of Radiology, University of Bonn, Sigmund-Freud-Str. 25, 53127, Bonn, Germany
| | - Julian A Luetkens
- Department of Radiology, University of Bonn, Sigmund-Freud-Str. 25, 53127, Bonn, Germany.
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