Title

Prognostic relevance of temporal muscle thickness as a marker of sarcopenia in patients with glioblastoma at diagnosis

UMMS Affiliation

Department of Radiology; Advanced MRI Center

Publication Date

2020-11-17

Document Type

Article

Disciplines

Analytical, Diagnostic and Therapeutic Techniques and Equipment | Neoplasms | Pathological Conditions, Signs and Symptoms | Radiology

Abstract

OBJECTIVES: Temporal muscle thickness (TMT) is a surrogate marker of sarcopenia, correlated with survival expectancy in patients suffering from brain metastases and recurrent or treated glioblastoma. We evaluated the prognostic relevance of TMT measured on brain MRIs acquired at diagnosis in patients affected by glioblastoma.

METHODS: We retrospectively enrolled 51 patients in our Institution affected by methylated MGMT promoter, IDH1-2 wild-type glioblastoma, who underwent complete surgical resection and subsequent radiotherapy with concomitant and maintenance temozolomide, from January 1, 2015, to April 30, 2017. The last clinical/radiological follow-up date was set to September 3, 2019. TMT was measured bilaterally on reformatted post-contrast 3D MPRAGE images, acquired on our 3-T scanner no more than 2 days before surgery. The median, 25th, and 75th percentile TMT values were identified and population was subdivided accordingly; afterwards, statistical analyses were performed to verify the association among overall survival (OS) and TMT, sex, age, and ECOG performance status.

RESULTS: In our cohort, the median OS was 20 months (range 3-51). Patients with a TMT > /= 8.4 mm (median value) did not show a statistically significant increase in OS (Cox regression model: HR 1.34, 95% CI 0.68-2.63, p = 0.403). Similarly, patients with a TMT > /= 9.85 mm (fourth quartile) did not differ in OS compared to those with TMT < /= 7 mm (first quartile). The statistical analyses confirmed a significant association among TMT and sex (p = 0.0186), but none for age (p = 0.642) and performance status (p = 0.3982).

CONCLUSIONS: In our homogeneous cohort of patients with glioblastoma at diagnosis, TMT was not associated with prognosis, age, or ECOG performance status.

KEY POINTS: * Temporal muscle thickness (TMT) is a surrogate marker of sarcopenia and has been correlated with survival expectancy in patients suffering from brain metastases and recurrent or treated glioblastoma. * We appraised the correlation among TMT and survival, sex, age at surgery, and performance status, measured on brain MRIs of patients affected by glioblastoma at diagnosis. * TMT did not show any significant correlation with prognosis, age at surgery, or performance status, and its usefulness might be restricted only to patients with brain metastases and recurrent or treated glioblastoma.

Keywords

Glioblastoma, MRI, Sarcopenia, Survival, Temporal muscle

DOI of Published Version

10.1007/s00330-020-07471-8

Source

Muglia R, Simonelli M, Pessina F, Morenghi E, Navarria P, Persico P, Lorenzi E, Dipasquale A, Grimaldi M, Scorsetti M, Santoro A, Politi LS. Prognostic relevance of temporal muscle thickness as a marker of sarcopenia in patients with glioblastoma at diagnosis. Eur Radiol. 2020 Nov 17. doi: 10.1007/s00330-020-07471-8. Epub ahead of print. PMID: 33201284. Link to article on publisher's site

Journal/Book/Conference Title

European radiology

Related Resources

Link to Article in PubMed

PubMed ID

33201284

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