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. 2022;26(8):792-798.
doi: 10.1007/s12603-022-1828-2.

Association of SARC-F Score and Rockwood Clinical Frailty Scale with CT-Derived Muscle Mass in Patients with Aortic Aneurysms

K Brown  1 , Y Cheng, S Harley, C Allen, M Claridge, D Adam, J M Lord, H Nasr, M Juszczak
Affiliations

Association of SARC-F Score and Rockwood Clinical Frailty Scale with CT-Derived Muscle Mass in Patients with Aortic Aneurysms

K Brown et al. J Nutr Health Aging. 2022.

Abstract

Objectives: Patients with aortic aneurysms (AA) are often co-morbid and susceptible to frailty. Low core muscle mass has been used as a surrogate marker of sarcopenia and indicator of frailty. This study aimed to assess association between core muscle mass with sarcopenia screening tool SARC-F and Clinical Frailty Scale (CFS) in patients with AA.

Methods: Prospective audit of patients in pre-operative aortic clinic between 01/07/2019-31/01/2020 including frailty assessment using Rockwood CFS and sarcopenia screening using SARC-F questionnaire. Psoas and sartorius muscle area were measured on pre-operative CT scans and adjusted for height. Association was assessed using Spearman's rank correlation coefficient.

Results: Of 84 patients assessed, median age was 75 years [72,82], 84.5% were men, 65.5% were multimorbid and 63.1% had polypharmacy. Nineteen percent were identified as frail (CFS score >3) and 6.1% positively screened for sarcopenia (SARC-F score 4 or more). Median psoas area (PMA) at L3 was 5.6cm2/m2 [4.8,6.6] and L4 was 7.4cm2/m2 [6.3,8.6]. Median sartorius area (SMA) was 1.8 cm2/m2 [1.5,2.2]. CFS demonstrated weak but statistically significant negative correlation with height-adjusted PMA at L3 (r=-0.25, p=0.034) but not at L4 (r=-0.23, p=0.051) or with SMA (r=-0.22, p=0.065). No association was observed between SARC-F score and PMA or SMA (L3 PMA r=-0.015, p=0.9; L4 PMA r=-0.0014, p= 0.99; SMA r=-0.051, p=0.67).

Conclusion: CFS showed higher association with CT-derived muscle mass than SARC-F. Comprehensive pre-operative risk-stratification tools which incorporate frailty assessment and body composition analysis may assist in decision making for surgery and allow opportunity for pre-habilitation.

Keywords: Morphomics; body-composition; frailty; sarcopenia.

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Conflict of interest statement

None.

Figures

Figure 1
Figure 1
Correlogram to show association between Rockwood Clinical Frailty Scale (left) and SARC-F score (right) with raw psoas area (TPA) at vertebral level L3 (top) and L4 (middle) and with sartorius muscle area (SMA) (bottom)
Figure 2
Figure 2
Correlogram to show association between Rockwood Clinical Frailty Scale (left) and SARC-F score (right) with height-adjusted psoas area (TPA) at vertebral level L3 (top) and L4 (middle) and with sartorius muscle area (SMA) (bottom)
See this image and copyright information in PMC

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