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El Assar M, Rodríguez-Sánchez I, Álvarez-Bustos A, Rodríguez-Mañas L. Biomarkers of frailty. Mol Aspects Med 2024; 97:101271. [PMID: 38631189 DOI: 10.1016/j.mam.2024.101271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 04/19/2024]
Abstract
Several biomarkers have been proposed to identify frailty, a multisystemic age-related syndrome. However, the complex pathophysiology and the absence of a consensus on a comprehensive and universal definition make it challenging to pinpoint a singular biomarker or set of biomarkers that conclusively characterize frailty. This review delves into the main laboratory biomarkers, placing special emphasis on those associated with various pathways closely tied to the frailty condition, such as inflammation, oxidative stress, mitochondrial dysfunction, metabolic and endocrine alterations and microRNA. Additionally, we provide a summary of different clinical biomarkers encompassing different tools that have been proposed to assess frailty. We further address various imaging biomarkers such as Dual Energy X-ray Absorptiometry, Bioelectrical Impedance analysis, Computed Tomography and Magnetic Resonance Imaging, Ultrasound and D3 Creatine dilution. Intervention to treat frailty, including non-pharmacological ones, especially those involving physical exercise and nutrition, and pharmacological interventions, that include those targeting specific mechanisms such as myostatin inhibitors, insulin sensitizer metformin and with special relevance for hormonal treatments are mentioned. We further address the levels of different biomarkers in monitoring the potential positive effects of some of these interventions. Despite the availability of numerous biomarkers, their performance and usefulness in the clinical arena are far from being satisfactory. Considering the multicausality of frailty, there is an increasing need to assess the role of sets of biomarkers and the combination between laboratory, clinical and image biomarkers, in terms of sensitivity, specificity and predictive values for the diagnosis and prognosis of the different outcomes of frailty to improve detection and monitoring of older people with frailty or at risk of developing it, being this a need in the everyday clinical practice.
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Affiliation(s)
- Mariam El Assar
- Fundación para la Investigación Biomédica del Hospital Universitario de Getafe, Madrid, Spain; Centro de Investigación Biomédica en Red sobre Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain
| | | | - Alejandro Álvarez-Bustos
- Centro de Investigación Biomédica en Red sobre Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain
| | - Leocadio Rodríguez-Mañas
- Centro de Investigación Biomédica en Red sobre Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain; Servicio de Geriatría, Hospital Universitario de Getafe, Madrid, Spain.
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Catikkas NM, Safer VB, Bas S, Gunay DS, Durak A, Utku IK, Safer U. Comparison of muscle and fat parameters measured by ultrasonography and dual-energy x-ray absorptiometry between older palliative care patients with and without type 2 diabetes mellitus. J Clin Ultrasound 2024. [PMID: 38600828 DOI: 10.1002/jcu.23688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 02/09/2024] [Accepted: 03/31/2024] [Indexed: 04/12/2024]
Abstract
BACKGROUND AND AIMS There are limited data on the comparison of body compositions between diabetic and non-diabetic patients. We aimed to compare the muscle mass and fat parameters measured by ultrasonography (USG) and dual-energy x-ray absorptiometry (DXA) between older palliative care patients with and without type 2 diabetes mellitus (DM). METHODS We conducted a prospective, cross-sectional study. We recorded the demographics, comorbidities, blood pressures, microvascular complications, pressure injuries, ambulation and nutritional status, and laboratory parameters. We measured the handgrip strength with a hand dynamometer and anthropometric parameters. We analyzed the subcutaneous fat thickness, muscle thickness (MT), and cross-sectional area (CSA) of the rectus femoris (RF) and biceps brachii muscles by USG and the total and regional muscle mass and fat parameters by DXA. We performed a regression analysis to examine the independently associated factors of DM. RESULTS We included 55 patients (mean age: 79.0 ± 8.0 years, 56.4%: female). 43.6% had type 2 DM. The patients with DM had significantly higher glucose and HbA1c levels and lower RFMT and RFCSA values than the patients without DM (p < 0.01, for all). The RFMT was independently associated with DM after adjusting age, sex, and body mass index (Odds ratio = 0.735, 95% confidence interval = 0.565-0.956, p = 0.022). CONCLUSION Our study demonstrated that the RFMT might be associated with type 2 DM. This was the first study comparing the body compositions measured by USG and DXA between older diabetic and non-diabetic palliative patients with a wide range of laboratory evaluations. Longitudinal, multi-center studies are warranted to understand the underlying mechanisms.
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Affiliation(s)
- Nezahat Muge Catikkas
- Division of Geriatrics, Department of Internal Medicine, Hamidiye Faculty of Medicine, Sancaktepe Prof. Dr. Ilhan Varank Training and Research Hospital, University of Health Sciences Istanbul, Istanbul, Turkey
| | - Vildan Binay Safer
- Department of Physical Medicine and Rehabilitation, Hamidiye Faculty of Medicine, Sancaktepe Prof. Dr. Ilhan Varank Training and Research Hospital, University of Health Sciences Istanbul, Istanbul, Turkey
| | - Suleyman Bas
- Department of Internal Medicine, Hamidiye Faculty of Medicine, Sancaktepe Prof. Dr. Ilhan Varank Training and Research Hospital, University of Health Sciences Istanbul, Istanbul, Turkey
| | - Deniz Sevindik Gunay
- Division of Geriatrics, Department of Internal Medicine, Hamidiye Faculty of Medicine, Sancaktepe Prof. Dr. Ilhan Varank Training and Research Hospital, University of Health Sciences Istanbul, Istanbul, Turkey
| | - Ayfer Durak
- Division of Geriatrics, Department of Internal Medicine, Hamidiye Faculty of Medicine, Sancaktepe Prof. Dr. Ilhan Varank Training and Research Hospital, University of Health Sciences Istanbul, Istanbul, Turkey
| | - Irem Kirac Utku
- Division of Geriatrics, Department of Internal Medicine, Hamidiye Faculty of Medicine, Sancaktepe Prof. Dr. Ilhan Varank Training and Research Hospital, University of Health Sciences Istanbul, Istanbul, Turkey
| | - Umut Safer
- Division of Geriatrics, Department of Internal Medicine, Hamidiye Faculty of Medicine, Sancaktepe Prof. Dr. Ilhan Varank Training and Research Hospital, University of Health Sciences Istanbul, Istanbul, Turkey
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Durak A, Binay Safer V, Catikkas NM. The relationship between pressure injuries and ultrasonographically measured rectus femoris muscle thickness. J Tissue Viability 2024; 33:60-66. [PMID: 38103986 DOI: 10.1016/j.jtv.2023.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 11/13/2023] [Accepted: 12/07/2023] [Indexed: 12/19/2023]
Affiliation(s)
- Ayfer Durak
- University of Health Sciences Istanbul, Hamidiye Faculty of Medicine, Sancaktepe Prof. Dr. Ilhan Varank Training and Research Hospital, Department of Internal Medicine, Division of Geriatrics, Sancaktepe, 34785, Istanbul, Turkey.
| | - Vildan Binay Safer
- University of Health Sciences Istanbul, Hamidiye Faculty of Medicine, Sancaktepe Prof. Dr. Ilhan Varank Training and Research Hospital, Department of Internal Medicine / Department of Physical Medicine and Rehabilitation, Sancaktepe, 34785, Istanbul, Turkey
| | - Nezahat Muge Catikkas
- University of Health Sciences Istanbul, Hamidiye Faculty of Medicine, Sancaktepe Prof. Dr. Ilhan Varank Training and Research Hospital, Department of Internal Medicine, Division of Geriatrics, Sancaktepe, 34785, Istanbul, Turkey
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Akazawa N, Funai K, Hino T, Tsuji R, Tamura W, Tamura K, Hioka A, Moriyama H. Increased intramuscular adipose tissue of the quadriceps at admission is more strongly related to activities of daily living recovery at discharge compared to muscle mass loss in older patients with aspiration pneumonia. BMC Geriatr 2024; 24:107. [PMID: 38287269 PMCID: PMC10826265 DOI: 10.1186/s12877-024-04718-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 01/17/2024] [Indexed: 01/31/2024] Open
Abstract
BACKGROUND Recent studies reported that an increase in intramuscular adipose tissue of the quadriceps in older patients negatively affects the recovery of activities of daily living (ADL) more than the loss of muscle mass. However, whether intramuscular adipose tissue of the quadriceps in older patients with aspiration pneumonia is related to ADL recovery remains unclear. This study aimed to determine the relationship between intramuscular adipose tissue of the quadriceps and ADL recovery in older patients with aspiration pneumonia. METHODS Thirty-nine older inpatients who were diagnosed with aspiration pneumonia participated in this prospective study. The main outcome of this study was ADL at discharge. ADL were assessed using the Barthel Index (BI). The intramuscular adipose tissue and muscle mass of the quadriceps were evaluated at admission using echo intensity and muscle thickness observed on ultrasound images. A multiple linear regression analysis was performed to confirm whether the quadriceps echo intensity was related to the BI score at discharge, even after adjusting for confounding factors. RESULTS The medians [interquartile range] of the BI score at admission and discharge were 15.0 [0.0-35.0] and 20.0 [5.0-55.0], respectively. The BI score at discharge was significantly higher than that at admission (p = 0.002). The quadriceps echo intensity (β = - 0.374; p = 0.036) and BI score at admission (β = 0.601; p < 0.001) were independently and significantly related to the BI score at discharge (R2 = 0.718; f2 = 2.546; statistical power = 1.000). In contrast, the quadriceps thickness (β = - 0.216; p = 0.318) was not independently and significantly related to the BI score at discharge. CONCLUSIONS Increased intramuscular adipose tissue of the quadriceps at admission is more strongly and negatively related to ADL recovery at discharge than the loss of muscle mass among older patients with aspiration pneumonia. Interventions targeting the intramuscular adipose tissue of the quadriceps may improve ADL among these patients.
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Affiliation(s)
- Naoki Akazawa
- Department of Physical Therapy, Faculty of Health and Welfare, Tokushima Bunri University, Hoji 180, Nishihama, Yamashiro-Cho, Tokushima-City, Tokushima, 770-8514, Japan.
| | - Keita Funai
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Wakayama, Japan
| | - Toshikazu Hino
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Wakayama, Japan
| | - Ryota Tsuji
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Wakayama, Japan
| | - Wataru Tamura
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Wakayama, Japan
| | - Kimiyuki Tamura
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Wakayama, Japan
| | - Akemi Hioka
- Department of Physical Therapy, Faculty of Health and Welfare, Tokushima Bunri University, Hoji 180, Nishihama, Yamashiro-Cho, Tokushima-City, Tokushima, 770-8514, Japan
| | - Hideki Moriyama
- Life and Medical Sciences Area, Health Sciences Discipline, Kobe University, Kobe, Hyogo, Japan
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Abstract
Technological advances of hand-held ultrasound devices and educational programmes for their use, such as point-of-care ultrasonography (POCUS) training, have contributed to the increasing application of these devices in clinical practice. With the greater impact of frailty and sarcopenia in aging societies, attention is being focused on the use of ultrasound for skeletal muscle assessment. In this narrative review, we discuss how ultrasound can be applied to skeletal muscle assessment, especially that of the quadriceps muscle, in clinical practice. Muscle thickness by ultrasound has been shown to have good reliability and validity for the evaluation of muscle size, and echo intensity has been used to evaluate muscle quality. Muscle ultrasound has not only been useful to diagnose sarcopenia in various settings, but has also been validated to predict health-related outcomes such as death and functional disability. Recommended methods for muscle ultrasound was published recently, and the results of future studies are expected to be comparable. Although several challenging issues with muscle ultrasound remain, if it could be incorporated into educational programmes such as POCUS training, more clinicians may be able to use ultrasound for skeletal muscle assessment in the future.KEY MESSAGESThe evolution of hand-held ultrasound devices enables physicians to perform ultrasound at the bedside as part of regular medical examinations.Muscle ultrasound is considered an effective tool for evaluating muscle size and quality, and has been studied in various settings.More clinicians may be able to evaluate skeletal muscle assessment with the development of educational programmes on muscle ultrasound in the future.
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Affiliation(s)
- Masaaki Nagae
- Department of Community Healthcare and Geriatrics, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Hiroyuki Umegaki
- Department of Community Healthcare and Geriatrics, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Akito Yoshiko
- Faculty of Liberal Arts and Sciences, Chukyo University, Aichi, Japan
| | - Kosuke Fujita
- Department of Prevention and Care Science, Research Institute, National Center for Geriatrics and Gerontology, Aichi, Japan
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Ding H, Lin X, Huang S, Liao J, Li Z, Chen L, Zhu L, Xie Y, Nie Q, Chen X. Suitable ultrasound screening method for older adults with disability to identify low muscle mass. Front Med (Lausanne) 2023; 10:1270176. [PMID: 37869165 PMCID: PMC10585103 DOI: 10.3389/fmed.2023.1270176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 09/19/2023] [Indexed: 10/24/2023] Open
Abstract
Objective This study aimed to investigate the accuracy and consistency of different ultrasound protocols for the measurement of gastrocnemius muscle (GM) thickness and to identify a suitable ultrasound scheme that can be used to detect the low muscle mass in older with disability. Materials and methods In this cross-sectional study, each participant underwent three different ultrasound protocols for the measurement of the GM thickness, and each measurement was repeated three times. The three measurement schemes were as follows: method A, lying on the examination bed in a prone position with legs stretched and relaxed and feet hanging outside the examination bed; method B, lateral right side lying position with legs separated (left leg flexed and right leg in a relaxed state); and method C, right side lying position with legs together and lower limb muscles in a relaxed state. The low muscle mass was determined by averaging two or three measurements of the GM thickness determined using different sonographic protocols. Results The study included 489 participants. The difference in the prevalence of low muscle mass identified between two and three replicates of the same measurement protocol ranged from 0 to 1.3%. Considering the three repeated measurements of the method A as the reference, the area under the curve (AUC) in different measurement schemes were 0.977-1 and 0.973-1 in males and females, respectively. Furthermore, male and female Kappa values from low to high were 0.773, 0.801, 0.829, 0.839, and 0.967 and 0.786, 0.794, 0.804, 0.819, and 0.984, respectively. Conclusion Different ultrasound measurement protocols showed high accuracy and consistency in identifying low muscle mass. Repeating the measurements two or three times was found to be feasible.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Xiaoyan Chen
- Zigong Psychiatric Research Center, Zigong Affiliated Hospital of Southwest Medical University, Zigong, Sichuan Province, China
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Xu X, Chen Y, Cai W, Huang J, Yao X, Zhao Q, Li H, Liang W, Zhang H. A Multivariable Model Based on Ultrasound Imaging Features of Gastrocnemius Muscle to Identify Patients With Sarcopenia. J Ultrasound Med 2023; 42:2045-2055. [PMID: 36929858 DOI: 10.1002/jum.16223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/22/2023] [Accepted: 03/05/2023] [Indexed: 06/18/2023]
Abstract
OBJECTIVES Low skeletal muscle mass, strength, or somatic function are used to diagnose sarcopenia; however, effective assessment methods are still lacking. Therefore, we evaluated the effectiveness of ultrasound in identifying patients with sarcopenia. METHODS This study included 167 patients, 78 with sarcopenia and 89 healthy participants, from two hospitals. We evaluated clinical factors and five ultrasound imaging features, of which three ultrasound imaging features were used to create the model. In both the training and validation datasets, the sarcopenia detection performances of chosen ultrasonic characteristics and the constructed model were evaluated using receiver operating characteristic (ROC) curves. The predictive performance was evaluated by area under the ROC (AUROC), calibration, and decision curves. RESULTS There were statistically significant differences in muscle thickness (MT) of gastrocnemius medialis muscle (GM), flaky myosteatosis echo (FE), pennation angle (PA), average shear wave velocity (SWV) in the relaxed state (RASWV), and average SWV in the passive stretched state (PASWV) between sarcopenic and normal subjects. PA, RASWV, and PASWV were effective predictors of sarcopenia. The AUROC (95% confidence interval) for these three parameters were 0.930 (0.882-0.978), 0.865 (0.791-0.940), and 0.849 (0.770-0.928), respectively, in the training set, and 0.873 (0.777-0.969), 0.936 (0.878-0.993), and 0.826 (0.716-0.935), respectively, in the validation set. The combined model had better detection power. Finally, the calibration curve showed that the combined model had good prediction accuracy. CONCLUSION Our model can be used to identify sarcopenia in primary medical institutions, which is valuable for the early recognition and management of sarcopenia patients.
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Affiliation(s)
- Xuanshou Xu
- Department of Ultrasound, Zhuhai People's Hospital, Zhuhai Hospital Affiliated to Jinan University, Zhuhai, China
- Department of Ultrasound Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yuansen Chen
- Department of Ultrasound, The Third People's Hospital of Longgang District, Shenzhen, China
| | - Wenwen Cai
- Department of Ultrasound, Zhuhai People's Hospital, Zhuhai Hospital Affiliated to Jinan University, Zhuhai, China
| | - Jing Huang
- Department of Ultrasound, Zhuhai People's Hospital, Zhuhai Hospital Affiliated to Jinan University, Zhuhai, China
| | - Xiaohong Yao
- Department of Ultrasound, The Third People's Hospital of Longgang District, Shenzhen, China
| | - Qin Zhao
- Department of Ultrasound, Zhuhai People's Hospital, Zhuhai Hospital Affiliated to Jinan University, Zhuhai, China
| | - Hong Li
- Department of Ultrasound, Zhuhai People's Hospital, Zhuhai Hospital Affiliated to Jinan University, Zhuhai, China
| | - Weixiang Liang
- Department of Ultrasound Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Heng Zhang
- Department of Ultrasound, Zhuhai People's Hospital, Zhuhai Hospital Affiliated to Jinan University, Zhuhai, China
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López Jiménez E, Neira Álvarez M, Ramírez Martín R, Alonso Bouzón C, Amor Andrés MS, Bermejo Boixareu C, Brañas F, Menéndez Colino R, Arias Muñana E, Checa López M, Grau Jiménez C, Pérez Rodríguez P, Alcantud Ibáñez M, Vasquez Brolen B, Oliva J, Peña Longobardo LM, Alcantud Córcoles R, Cortés Zamora EB, Gómez Jiménez E, Romero Rizos L, Avendaño Céspedes A, Hernández Socorro CR, Abizanda P. "SARCOPENIA MEASURED BY ULTRASOUND IN HOSPITALIZED OLDER ADULTS" (ECOSARC): multi-centre, prospective observational study protocol. BMC Geriatr 2023; 23:163. [PMID: 36949412 PMCID: PMC10035149 DOI: 10.1186/s12877-023-03891-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 03/13/2023] [Indexed: 03/24/2023] Open
Abstract
BACKGROUND Measurement of muscle mass and function, and thereafter, screening and diagnosis of sarcopenia, is a challenge and a need in hospitalized older adults. However, it is difficult in complex real-world old patients, because usually they are unable to collaborate with clinical, functional, and imaging testing. Ultrasound measurement of quadriceps rectus femoris (QRF) provides a non-invasive, real-time assessment of muscle quantity and quality, and is highly acceptable to participants with excellent inter-rater and intra-rater variability. However, normative data, protocol standardization, and association with longitudinal outcomes, needs further research and consensus. METHODS Prospective exploratory multicenter study in older adults admitted to Acute Geriatric Units (AGUs) for medical reasons. 157 subjects from 7 AGUs of Spain were recruited between May 2019 and January 2022. Muscle ultrasound measurements of the anterior vastus of the QRF were acquired on admission and on discharge, using a previously validated protocol, using a Chieson model ECO2 ultrasound system (Chieson Medical Technologies, Co. Ltd, Wimxu District Wuxi, Jiangsu, China). Measurements included the cross-sectional area, muscle thickness in longitudinal view, intramuscular central tendon thickness, echogenicity, and the presence or absence of edema and fasciculations. Functional, nutritional, and DXA measurements were provided. Clinical follow-up was completed at discharge, and 30 and 90 days after discharge. Variations between hospital admission and discharge ultrasound values, and the relationship with clinical variables, will be analyzed using paired t-tests, Wilcoxon tests, or Mc Nemar chi-square tests when necessary. Prevalence of sarcopenia will be calculated, as well as sensitivity and specificity of ultrasound measurements to determine sarcopenia. Kappa analysis will be used to analyze the concordance between measurements, and sensitivity analysis will be conducted for each participating center. DISCUSSION The results obtained will be of great interest to the scientific geriatric community to assess the utility and validity of ultrasound measurements for the detection and follow-up of sarcopenia in hospitalized older adults, and its association with adverse outcomes. TRIAL REGISTRATION NCT05113758. Registration date: November 9th 2021. Retrospectively registered.
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Affiliation(s)
- Esther López Jiménez
- Complejo Hospitalario Universitario de Albacete, C/ Seminario 4, 02006, Albacete, Spain
| | - Marta Neira Álvarez
- Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Madrid, Spain
| | | | | | | | | | - Fátima Brañas
- Hospital Universitario Infanta Leonor, Madrid, Spain
| | | | | | | | | | | | | | | | - Juan Oliva
- Department of Economic Analysis and Finance, Universidad de Castilla-La Mancha, Toledo, Spain
| | | | | | - Elisa Belén Cortés Zamora
- Complejo Hospitalario Universitario de Albacete, C/ Seminario 4, 02006, Albacete, Spain
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain
| | - Elena Gómez Jiménez
- Complejo Hospitalario Universitario de Albacete, C/ Seminario 4, 02006, Albacete, Spain
- Fundación Hospital Nacional de Parapléjicos, Toledo, Spain
| | - Luis Romero Rizos
- Complejo Hospitalario Universitario de Albacete, C/ Seminario 4, 02006, Albacete, Spain
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain
- Facultad de Medicina de Albacete, Universidad de Castilla-La Mancha, Albacete, Spain
| | - Almudena Avendaño Céspedes
- Complejo Hospitalario Universitario de Albacete, C/ Seminario 4, 02006, Albacete, Spain
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain
- Facultad de Enfermería de Albacete, Universidad de Castilla-La Mancha, Albacete, Spain
| | | | - Pedro Abizanda
- Complejo Hospitalario Universitario de Albacete, C/ Seminario 4, 02006, Albacete, Spain.
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain.
- Facultad de Medicina de Albacete, Universidad de Castilla-La Mancha, Albacete, Spain.
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Fu H, Wang L, Zhang W, Lu J, Yang M. Diagnostic test accuracy of ultrasound for sarcopenia diagnosis: A systematic review and meta-analysis. J Cachexia Sarcopenia Muscle 2023; 14:57-70. [PMID: 36513380 PMCID: PMC9891970 DOI: 10.1002/jcsm.13149] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 10/23/2022] [Accepted: 11/16/2022] [Indexed: 12/15/2022] Open
Abstract
Muscle ultrasound is an emerging tool for diagnosing sarcopenia. This review aims to summarize the current knowledge on the diagnostic test accuracy of ultrasound for the diagnosis of sarcopenia. We collected data from Ovid Medline, Embase and the Cochrane Central Register of Controlled Trials. Diagnostic test accuracy studies using muscle ultrasound to detect sarcopenia were included. Bivariate random-effects models based on sensitivity and specificity pairs were used to calculate the pooled estimates of sensitivity, specificity and the area under the curves (AUCs) of summary receiver operating characteristic (SROC), if possible. We screened 7332 publications and included 17 studies with 2143 participants (mean age range: 52.6-82.8 years). All included studies had a high risk of bias. The study populations, reference standards and ultrasound measurement methods varied across the studies. Lower extremity muscles were commonly studied, whereas muscle thickness (MT) was the most widely measured parameter, followed by the cross-sectional area (CSA). The MTs of the gastrocnemius, rectus femoris, tibialis anterior, soleus, rectus abdominis and geniohyoid muscles showed a moderate diagnostic accuracy for sarcopenia (SROC-AUC 0.83, 8 studies; SROC-AUC 0.78, 5 studies; AUC 0.82, 1 study; AUC 0.76-0.78, 2 studies; AUC 0.76, 1 study; and AUC 0.79, 1 study, respectively), whereas the MTs of vastus intermedius, quadriceps femoris and transversus abdominis muscles showed a low diagnostic accuracy (AUC 0.67-0.71, 3 studies; SROC-AUC 0.64, 4 studies; and AUC 0.68, 1 study, respectively). The CSA of rectus femoris, biceps brachii muscles and gastrocnemius fascicle length also showed a moderate diagnostic accuracy (AUC 0.70-0.90, 3 studies; 0.81, 1 study; and 0.78-0.80, 1 study, respectively), whereas the echo intensity (EI) of rectus femoris, vastus intermedius, quadriceps femoris and biceps brachii muscles showed a low diagnostic accuracy (AUC 0.52-0.67, 2 studies; 0.48-0.50, 1 study; 0.43-0.49, 1 study; and 0.69, 1 study, respectively). The combination of CSA and EI of biceps brachii or rectus femoris muscles was better than either CSA or EI alone for diagnosing sarcopenia. Muscle ultrasound shows a low-to-moderate diagnostic test accuracy for sarcopenia diagnosis depending on different ultrasound parameters, measured muscles, reference standards and study populations. The combination of muscle quality indicators (e.g., EI) and muscle quantity indicators (e.g., MT) might provide better diagnostic test accuracy.
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Affiliation(s)
- Hongbo Fu
- Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Lei Wang
- Department of Medical Ultrasound, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China.,Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
| | - Wenyi Zhang
- Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Jing Lu
- Medical Insurance Office, West China Hospital, Sichuan University, Chengdu, China
| | - Ming Yang
- Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, Chengdu, China.,National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
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Monjo H, Fukumoto Y, Taniguchi M, Yamada Y, Kimura M. Differential association of total and regional muscle mass and quality with physical performance in community-dwelling older adults. J Med Ultrason (2001) 2023; 50:221-228. [PMID: 36626089 DOI: 10.1007/s10396-022-01275-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 11/09/2022] [Indexed: 01/11/2023]
Abstract
PURPOSE In this study, we examined the association among total muscle mass, regional muscle mass, muscle quality, and various types of physical performance in community-dwelling older adults. METHODS This study included 195 community-dwelling older adults (61 males and 134 females). The muscle thickness and echo intensity of the quadriceps femoris and triceps surae were measured using ultrasound, and the skeletal muscle mass index was evaluated using bioelectrical impedance analysis. Physical performance was measured using the 30-s standing test (CS30), Timed up-and-go test (TUG), 10-m maximum walking speed (10MWT), vertical jump test (VJT), and grip strength. RESULTS Partial correlation analysis after controlling for age, sex, and body mass index showed that CS30 was significantly correlated with muscle thickness and echo intensity of the quadriceps femoris. The TUG and VJT were significantly correlated with muscle thickness of the triceps surae, and grip strength was significantly correlated with muscle thickness of the triceps surae and skeletal muscle mass index. Stepwise multiple regression analyses indicated that the echo intensity of the quadriceps femoris was a significant predictor of CS30, and the muscle thickness of the triceps surae was a significant predictor of TUG, VJT, and grip strength, whereas the skeletal muscle mass index was not a significant predictor of any physical performance test. CONCLUSION Our results suggest that regional muscle mass and quality are more important than skeletal muscle mass index for predicting physical performance.
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Affiliation(s)
- Hiroki Monjo
- Headquarters of Avanzar Co., Ltd., 506-1 Higashifutami, Futami-Town, Akashi, Hyogo, 674-0092, Japan.
- Department of Physical Medicine and Rehabilitation, Kansai Medical University, 2-5-1 Shin-Machi, Hirakata, Osaka, 573-1136, Japan.
| | - Yoshihiro Fukumoto
- Department of Physical Medicine and Rehabilitation, Kansai Medical University, 2-5-1 Shin-Machi, Hirakata, Osaka, 573-1136, Japan
| | - Masashi Taniguchi
- Department of Physical Therapy, Graduate School of Medicine, Kyoto University, 53 Kawahara-Cho, Shogoin, Sakyo-Ku, Kyoto, 606-8507, Japan
| | - Yosuke Yamada
- Department of Physical Activity Research, National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, 1-23-1 Toyama, Shinjuku-Ku, Tokyo, 162-8636, Japan
| | - Misaka Kimura
- Institute for Active Health, Institute of Interdisciplinary Research, Kyoto University of Advanced Science, 18 Gotanda-Cho, Yamanouchi, Ukyo-Ku, Kyoto, 615-8577, Japan
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11
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Abstract
The gradual loss of skeletal muscle mass during aging and associated decline in contractile strength can result in reduced fitness, frailty, and loss of independence. In order to better understand the molecular and cellular mechanisms that underlie sarcopenia of old age and the frailty syndrome, as well as identify novel therapeutic targets to treat age-related fiber wasting, it is crucial to develop a comprehensive biomarker signature of muscle aging. Fluorescence two-dimensional gel electrophoresis (2D-DIGE) in combination with sensitive mass spectrometry presents an ideal bioanalytical tool for biomarker discovery in biogerontology. This chapter outlines the application of the 2D-DIGE method for the comparative analysis of human biopsy specimens from middle-aged versus senescent individuals using a two-CyDye-based method.
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Affiliation(s)
- Kay Ohlendieck
- Department of Biology, Maynooth University, National University of Ireland, Maynooth, Co. Kildare, Ireland.
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12
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Tang X, Huang S, Huang L, Feng Z, Wang Z, Yue J, Qiu L. Ultrasound-derived muscle assessment system for older adults: a promising muscle mass estimation tool. Age Ageing 2022; 51:6964937. [PMID: 36580560 PMCID: PMC9799249 DOI: 10.1093/ageing/afac298] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Quantitative assessment of muscle mass is a critical step in sarcopenia disease management. Expanding upon the use of ultrasound in foetal growth assessment, we established and validated an ultrasound-derived muscle assessment system for older adults at a risk of sarcopenia. METHODS A total of 669 older adults were recruited in three cohorts in this cross-sectional study. In cohort 1(n = 103), the most valuable sites for skeletal muscle mass index (SMI) estimation were located among 11 ultrasound scanning sites. An ultrasound-derived SMI estimating algorithm based on muscle thickness (MT) was obtained in the modelling group composed of cohorts 1 and 2 (n = 309). The reliability of the muscle mass estimation equation and the validity of the obtained cut-off values were verified in cohort 3 (n = 257), which was selected as the verification group. RESULTS In the modelling group, the cut-off values of ultrasound-derived e-SMI for low SMI were 7.13 kg/m2 for men and 5.81 kg/m2 for women. In the verification group, the intraclass correlation between e-SMI and SMI was 0.885. The sensitivity of the e-SMI in detecting low SMI was 93.6% for men and 89.7% for women, and the negative predictive value was 94.9% for men and 94.7% for women. Combined with the handgrip strength and gait speed, the e-SMI had an overall diagnostic sensitivity of 92.7% and a specificity of 91.0% for sarcopenia. CONCLUSION The ultrasound-derived muscle assessment system can be a promising muscle mass estimation tool and a potential disease classification tool.
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Affiliation(s)
- Xinyi Tang
- Department of Medical Ultrasound and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Songya Huang
- Department of Medical Ultrasound, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Li Huang
- National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Ziyan Feng
- Department of Medical Ultrasound, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Ziyao Wang
- Department of Medical Ultrasound, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Jirong Yue
- Address correspondence to: Jirong Yue National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, No. 37 Guoxue Alley, Chengdu 610041, Sichuan, China. E-mail: ; Li Qiu, Department of Medical Ultrasound, West China Hospital of Sichuan University, No. 37 Guoxue Alley, Chengdu 610041, Sichuan, China. E-mail:
| | - Li Qiu
- Address correspondence to: Jirong Yue National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, No. 37 Guoxue Alley, Chengdu 610041, Sichuan, China. E-mail: ; Li Qiu, Department of Medical Ultrasound, West China Hospital of Sichuan University, No. 37 Guoxue Alley, Chengdu 610041, Sichuan, China. E-mail:
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13
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Isaka M, Sugimoto K, Akasaka H, Yasunobe Y, Takahashi T, Xie K, Onishi Y, Yoshida S, Minami T, Yamamoto K, Kamide K, Rakugi H. The Muscle Thickness Assessment Using Ultrasonography is a Useful Alternative to Skeletal Muscle Mass by Bioelectrical Impedance Analysis. Clin Interv Aging 2022; 17:1851-1861. [PMID: 36545348 PMCID: PMC9762259 DOI: 10.2147/cia.s385469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 11/24/2022] [Indexed: 12/23/2022] Open
Abstract
Purpose Muscle mass, a key index for the diagnosis of sarcopenia, is currently assessed using the appendicular skeletal muscle mass index (ASMI) by bioelectrical impedance analysis (BIA). Muscle thickness (MT) assessed by ultrasonography (US) may be a better determinant and/or predictor of muscle condition than ASMI. Thus, we compared it to the ASMI determined by the BIA. Patients and Methods Our study included 165 ambulatory older adults (84 males, 81 females, mean age: 76.82 years). The ASMI by the BIA method, MT by US, and the distribution of body mass index (BMI) and body fat percentage (BFP) were examined using defined values for men and women. These were used as the basis for examining the association of MT and ASMI with handgrip strength (HGS), leg muscle strength (LMS), gait speed (GS), and echo intensity (EI). We compared HGS, LMS, GS, and EI for high and low ASMI among lower BMI or BFP. The same was also done for MT assessed by US. Results MT, as well as ASMI, was strongly associated with HGS and LMS. There was a correlation between MT and GS and EI but not between ASMI and GS and EI. There were significant differences in the prevalence between high ASMI and high MT or low ASMI and low MT in those with lower BMI or BFP. In non-overweight participants, HGS, LMS, GS, and EI were significantly higher in those with high MT than in those with low MT; however, there were no significant differences in them between those with high and low ASMI. Conclusion In the non-overweight group, the MT assessment by US showed a stronger relationship to muscle strength and muscle quality than the ASMI assessment by BIA. The MT assessment using US is a useful alternative to BIA-assessed ASMI, especially in non-overweight participants.
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Affiliation(s)
- Masaaki Isaka
- Department of Geriatric and General Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan,Department of Health Science, Osaka University Graduate School of Medicine, Suita, Osaka, Japan,Physical Therapy, Osaka Yukioka College of Health Science, Ibaraki, Osaka, Japan
| | - Ken Sugimoto
- Department of Geriatric and General Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan,Department of General Geriatric Medicine, Kawasaki Medical School, Okayama, Okayama, Japan,Correspondence: Ken Sugimoto, Department of General Geriatric Medicine, Kawasaki Medical School, 2-6-1, Nakasange, Kita-ku, Okayama, Okayama, 700-8505, Japan, Tel +81 86 225 2111, Fax +81 86 232 8343, Email
| | - Hiroshi Akasaka
- Department of Geriatric and General Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Yukiko Yasunobe
- Department of Geriatric and General Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Toshimasa Takahashi
- Department of Geriatric and General Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Keyu Xie
- Department of Geriatric and General Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Yuri Onishi
- Department of Geriatric and General Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Shino Yoshida
- Department of Geriatric and General Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Tomohiro Minami
- Department of Geriatric and General Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Koichi Yamamoto
- Department of Geriatric and General Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Kei Kamide
- Department of Geriatric and General Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan,Department of Health Science, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Hiromi Rakugi
- Department of Geriatric and General Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
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14
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Cornejo-Pareja I, Soler-Beunza AG, Vegas-Aguilar IM, Fernández-Jiménez R, Tinahones FJ, García-Almeida JM. Predictors of Sarcopenia in Outpatients with Post-Critical SARS-CoV2 Disease. Nutritional Ultrasound of Rectus Femoris Muscle, a Potential Tool. Nutrients 2022; 14:nu14234988. [PMID: 36501018 PMCID: PMC9740630 DOI: 10.3390/nu14234988] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/15/2022] [Accepted: 11/17/2022] [Indexed: 11/25/2022] Open
Abstract
Background and Objectives: The loss of muscle mass in post-critical COVID-19 outpatients is difficult to assess due to the limitations of techniques and the high prevalence of obesity. Ultrasound is an emerging technique for evaluating body composition. The aim is to evaluate sarcopenia and its risk factors, determining ultrasound usefulness as a potential tool for this purpose according to established techniques, such as the bioimpedance vector analysis (BIVA), handgrip strength, and timed up-and-go test. Methods: This is a transversal study of 30 post-critical COVID-19 outpatients. We evaluated nutritional status by ultrasound (Rectus Femoris-cross-sectional-area (RF-CSA), thickness, and subcutaneous-adipose-tissue), BIVA, handgrip strength, timed up-and-go test, and clinical variables during admission. Results: According to The European Society for Clinical Nutrition and Metabolism and the European Association for the Study of Obesity (ESPEN&EASO) Consensus for Sarcopenic and Obesity, in terms of excess fat mass and decreased lean mass, the prevalence of class-1 sarcopenic obesity was 23.4% (n = 7), and class-2 sarcopenic obesity was 33.3% (n = 10) in our study. A total of 46.7% (n = 14) of patients had a handgrip strength below the 10th percentile, and 30% (n = 9) achieved a time greater than 10s in the timed up-and-go test. There were strong correlations between the different techniques that evaluated the morphological (BIVA, Ultrasound) and functional measurements of muscle. Intensive care unit stay, mechanical ventilation, and age all conditioned the presence of sarcopenia in COVID-19 outpatients (R2 = 0.488, p = 0.002). Predictive models for sarcopenic diagnosis based on a skeletal muscle index estimation were established by RF-CSA (R2 0.792, standard error of estimate (SEE) 1.10, p < 0.001), muscle-thickness (R2 0.774, SEE 1.14, p < 0.001), and handgrip strength (R2 0.856, SEE 0.92, p < 0.001). RF-CSA/weight of 5.3 cm2/kg × 100 was the cut-off value for predicting sarcopenia in post-critical COVID-19 outpatients, with 88.2 sensitivity and 69.2% specificity. Conclusion: More than half of the post-critical COVID-19 survivors had sarcopenic obesity and functional impairment of handgrip strength. Intensive care unit stay, age, and mechanical ventilation all predict sarcopenia. An ultrasound, when applied to the assessment of body composition in post-critical COVID-19 patients, provided the possibility of assessing sarcopenia in this population.
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Affiliation(s)
- Isabel Cornejo-Pareja
- Instituto de Investigación Biomédica de Málaga (IBIMA), Virgen de la Victoria University Hospital, 29010 Málaga, Spain
- Centro de Investigacion Biomedica en Red de la Fisiopatología de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III (ISCIII), 29010 Malaga, Spain
- Correspondence: (I.C.-P.); (F.J.T.)
| | - Ana Gloria Soler-Beunza
- Department of Endocrinology and Nutrition, Arnau de Villanova University Hospital, 25198 Lleida, Spain
| | - Isabel María Vegas-Aguilar
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Málaga University, 29010 Málaga, Spain
| | - Rocío Fernández-Jiménez
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Málaga University, 29010 Málaga, Spain
| | - Francisco J. Tinahones
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Málaga University, 29010 Málaga, Spain
- Correspondence: (I.C.-P.); (F.J.T.)
| | - Jose Manuel García-Almeida
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Málaga University, 29010 Málaga, Spain
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15
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Meza-Valderrama D, Marco E, Muñoz-Redondo E, Morgado-Pérez A, Sánchez MT, Curbelo Peña Y, De Jaime E, Canchucaja L, Meza Concepción F, Perkisas S, Sánchez-Rodríguez D. Musculoskeletal Ultrasound Shows Muscle Mass Changes during Post-Acute Care Hospitalization in Older Men: A Prospective Cohort Study. Int J Environ Res Public Health 2022; 19:15150. [PMID: 36429869 PMCID: PMC9690008 DOI: 10.3390/ijerph192215150] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/12/2022] [Accepted: 11/15/2022] [Indexed: 06/16/2023]
Abstract
This study aimed to prospectively assess changes in muscle thickness (MT) and the cross-sectional area (CSA) of the rectus femoris (RF) muscle in a cohort of older adults, using musculoskeletal ultrasound at admission and at a 2-week follow-up during hospitalization in a post-acute care unit. Differences in frailty status and correlations of MT-RF and CSA-RF with current sarcopenia diagnostic criteria were also studied. Forty adults aged 79.5 (SD 9.5) years (57.5% women) participated, including 14 with frailty and 26 with pre-frailty. In the first week follow-up, men had a significant increase in MT (0.9 mm [95%CI 0.3 to 1.4], p = 0.003) and CSA (0.4 cm2 [95%CI 0.1 to 0.6], p = 0.007). During the second week, men continued to have a significant increase in MT (0.7 mm [95%CI 0.0 to 1.4], p = 0.036) and CSA (0.6 cm2 [95%CI 0.01 to 1.2], p = 0.048). Patients with frailty had lower values of MT-RF and CSA-RF at admission and during the hospitalization period. A moderate-to-good correlation of MT-RF and CSA with handgrip strength, fat-free mass and gait speed was observed. Musculoskeletal ultrasound was able to detect MT-RF and CSA-RF changes in older adults admitted to a post-acute care unit.
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Affiliation(s)
- Delky Meza-Valderrama
- Rehabilitation Research Group, Hospital del Mar Research Institute, Dr. Aiguader, 88, 08003 Barcelona, Catalonia, Spain
- Physical Medicine and Rehabilitation Department, National Institute of Physical Medicine and Rehabilitation, Vía Centenario, Diagonal a la Universidad Tecnológica de Panamá, Panama City 0819, Panama
- Physical Medicine and Rehabilitation Department, Caja de Seguro Social, Calle de Circunvalación, Panama City 0844, Panama
| | - Ester Marco
- Rehabilitation Research Group, Hospital del Mar Research Institute, Dr. Aiguader, 88, 08003 Barcelona, Catalonia, Spain
- Physical Medicine and Rehabilitation Department, Parc de Salut Mar (Hospital del Mar, Hospital de l’Esperança), Sant Josep de la Muntanya 12, 08024 Barcelona, Catalonia, Spain
- School of Medicine, Universitat Pompeu Fabra, Plaça de la Mercè, 10-12, 08002 Barcelona, Catalonia, Spain
| | - Elena Muñoz-Redondo
- Rehabilitation Research Group, Hospital del Mar Research Institute, Dr. Aiguader, 88, 08003 Barcelona, Catalonia, Spain
- Physical Medicine and Rehabilitation Department, Parc de Salut Mar (Hospital del Mar, Hospital de l’Esperança), Sant Josep de la Muntanya 12, 08024 Barcelona, Catalonia, Spain
| | - Andrea Morgado-Pérez
- Rehabilitation Research Group, Hospital del Mar Research Institute, Dr. Aiguader, 88, 08003 Barcelona, Catalonia, Spain
- Physical Medicine and Rehabilitation Department, Parc de Salut Mar (Hospital del Mar, Hospital de l’Esperança), Sant Josep de la Muntanya 12, 08024 Barcelona, Catalonia, Spain
| | - Marta Tejero Sánchez
- Rehabilitation Research Group, Hospital del Mar Research Institute, Dr. Aiguader, 88, 08003 Barcelona, Catalonia, Spain
- Physical Medicine and Rehabilitation Department, Parc de Salut Mar (Hospital del Mar, Hospital de l’Esperança), Sant Josep de la Muntanya 12, 08024 Barcelona, Catalonia, Spain
| | - Yulibeth Curbelo Peña
- Rehabilitation Research Group, Hospital del Mar Research Institute, Dr. Aiguader, 88, 08003 Barcelona, Catalonia, Spain
- Physical Medicine and Rehabilitation Department, Parc de Salut Mar (Hospital del Mar, Hospital de l’Esperança), Sant Josep de la Muntanya 12, 08024 Barcelona, Catalonia, Spain
| | - Elisabeth De Jaime
- Geriatric Department, Centre Fòrum-Hospital del Mar, Parc de Salut Mar, Llull, 410, 08029 Barcelona, Catalonia, Spain
| | - Lizzeth Canchucaja
- Geriatric Department, Centre Fòrum-Hospital del Mar, Parc de Salut Mar, Llull, 410, 08029 Barcelona, Catalonia, Spain
| | - Frank Meza Concepción
- Complejo Hospitalario Dr. Arnulfo Arias Madrid, Caja de Seguro Social, Ave. Simón Bolívar, Panama City 07096, Panama
| | - Stany Perkisas
- University Center of Geriatrics, Antwerp University, Universiteitsplein 1, 2610 Antwerp, Belgium
- First Line and Interdisciplinary Care Medicine, University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium
| | - Dolores Sánchez-Rodríguez
- Geriatrics Department, Brugmann University Hospital, Université Libre de Bruxelles, Place A. Van Gehuchten 4, 1020 Brussels, Belgium
- WHO Collaborating Centre for Public Health Aspects of Musculoskeletal Health and Ageing, Division of Public Health, Epidemiology and Health Economics, University of Liège, Place du 20 Août 7, 4000 Liege, Belgium
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16
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Nies I, Ackermans LLGC, Poeze M, Blokhuis TJ, Ten Bosch JA. The Diagnostic Value of Ultrasound of the Rectus Femoris for the diagnosis of Sarcopenia in adults: A systematic review. Injury 2022; 53 Suppl 3:S23-9. [PMID: 35732560 DOI: 10.1016/j.injury.2022.06.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 05/27/2022] [Accepted: 06/06/2022] [Indexed: 02/02/2023]
Abstract
BACKGROUND & AIM Sarcopenia is defined as a loss of muscle mass and function, which can be caused by normal ageing or factors such as physical inactivity. Severe health consequences caused by sarcopenia highlight the need for early identification. Computed Tomography (CT) imaging, often mentioned as the gold standard due to its accuracy, is costly and not routinely performed in daily clinical care. Ultrasound of the rectus femoris, however, is low in costs and easily accessible. The aim is to present the current and most recent literature regarding the diagnostic value of ultrasound measurements of the rectus femoris for the diagnosis of sarcopenia in adults. METHODS The databases PubMed and Web of Science were used to search for studies comparing ultrasound of the rectus femoris with a reference test to diagnose sarcopenia in adults. The quality of the final eligible studies was assessed using the Quality Assessment of Diagnostic Accuracy Studies, version 2, tool (QUADAS-2). RESULTS Six studies were included in this systematic review. The muscle thickness and cross-sectional area of the rectus femoris were assessed and compared with the reference tests CT, Dual-Energy X-ray Absorptiometry (DXA), and Bioelectrical Impedance Analysis (BIA). Half of the studies had a low risk of bias on all QUADAS-2 domains. Three studies reported statistical significant outcomes and diagnostic values ranging from 60 to 81% sensitivity and 51 to 94% specificity. CONCLUSIONS Ultrasound of the rectus femoris muscle to diagnose sarcopenia has been shown to be a promising method in multiple clinical populations. However, there were some limitations such as a high methodological heterogeneity. Future research should develop standardized protocols and determine clear cut-off values to allow for a better implementation of ultrasound in clinical practice.
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Gupta M, Lehl SS, Lamba AS. Ultrasonography for Assessment of Sarcopenia: A Primer. J Midlife Health 2022; 13:269-277. [PMID: 37324795 PMCID: PMC10266568 DOI: 10.4103/jmh.jmh_234_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 01/05/2023] [Accepted: 02/13/2023] [Indexed: 06/17/2023] Open
Abstract
The human skeletal muscle has a pivotal role in preserving health by maintaining mobility, balance, and metabolic homeostasis. Significant muscle loss as a part of aging and accelerated by disease leads to sarcopenia which becomes an important predictor of quality of life in older persons. Therefore, clinical screening for sarcopenia and validation by precise qualitative and quantitative measurement of skeletal muscle mass (MM) and function is at the center-stage of translational research. Many imaging modalities are available, each having their strengths and limitations, either in interpretation, technical processes, time constraints, or expense. B-mode ultrasonography (US) is a relatively novel approach to evaluating muscle. It can measure several parameters such as MM and architecture simultaneously including muscle thickness, cross-sectional area, echogenicity, pennate angle, and fascicle length. It can also evaluate dynamic parameters like muscle contraction force and muscle microcirculation. US has not gained global attention due to a lack of consensus on standardization and diagnostic threshold values to diagnose sarcopenia. However, it is an inexpensive and widely available technique with clinical applicability. The ultrasound-derived parameters correlate well with strength and functional capacity and provide potential prognostic information. Our aim is to present an update on the evidence-based role of this promising technique in sarcopenia, its advantages over the existing modalities, and its limitations in actual practice with the hope that it may emerge as the "stethoscope" for community diagnosis of sarcopenia.
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Affiliation(s)
- Monica Gupta
- Department of General Medicine, Government Medical College and Hospital, Chandigarh, India
| | - Sarabmeet Singh Lehl
- Department of General Medicine, Government Medical College and Hospital, Chandigarh, India
| | - Amtoj Singh Lamba
- Department of General Medicine, Government Medical College and Hospital, Chandigarh, India
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18
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Sri-On J, Rueanthip S, Vanichkulbodee A, Paksopis T, Chetanasilpin C. The Validity of Ultrasonographic Measurements of the Rectus Femoris Muscle in Older Adults with Sarcopenia in Thai Population. Clin Interv Aging 2022; 17:1249-1259. [PMID: 36003922 PMCID: PMC9394665 DOI: 10.2147/cia.s375419] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 08/05/2022] [Indexed: 11/23/2022] Open
Abstract
Purpose This study aimed to determine the validity of ultrasonographic measurement of the rectus femoris muscle (RFM) thickness as a screening tool for low appendicular muscle mass (ASM) to diagnose sarcopenia and to determine the cut-off point of RFM thickness in the Thai population. Patients and methods We enrolled 857 community-dwelling adults aged 60 years and older who were diagnosed with sarcopenia using the Asian Working Group for Sarcopenia-2019 algorithm. The RFM thickness was measured using ultrasonography and compared with bioelectrical impedance analysis (BIA) data. The sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) were evaluated, and the area under the receiver operating curve (AUROC) was used to determine the accuracy of the test. Results A total of 857 participants were included in the study. Overall, when the cut-off values of RFM thickness of ≤1.1 cm were used for male and ≤1 cm for female, the highest sensitivity for sarcopenia diagnosis was 90.9% and specificity was 92.2%. The PPV was 76.6, and the NPV was the highest at 97.3. The highest sensitivity for the diagnosis of severe sarcopenia was 92.5% and specificity was 97.4%. The AUROC of the cut-off point of RFM thickness for the diagnosis of sarcopenia was 0.92 (95% confidence interval [CI], 0.89−0.94); for severe sarcopenia, it was 0.95 (95% CI, 0.92−0.98). Conclusion Measuring RFM thickness using ultrasonography is a feasible and reliable screening test for sarcopenia, and the cut-off values of ≤1.1 cm for male and ≤1 cm for female showed the highest accuracy for confirming low ASM in the Thai population.
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Affiliation(s)
- Jiraporn Sri-On
- Geriatric Emergency Medicine Unit, The Department of Emergency Medicine, Vajira Hospital, Navamindradhiraj University, Bangkok, Thailand
| | - Sommapan Rueanthip
- The Department of Emergency Medicine, Vajira Hospital, Navamindradhiraj University, Bangkok, Thailand
| | - Alissara Vanichkulbodee
- Ultrasound Emergency Unit, The Department of Emergency Medicine, Vajira Hospital, Navamindradhiraj University, Bangkok, Thailand
| | - Thitiwan Paksopis
- Geriatric Emergency Medicine Unit, The Department of Emergency Medicine, Vajira Hospital, Navamindradhiraj University, Bangkok, Thailand
| | - Chatbhaudin Chetanasilpin
- The Department of Emergency Medicine, Vajira Hospital, Navamindradhiraj University, Bangkok, Thailand
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Fukumoto Y, Taniguchi M, Hirono T, Yagi M, Yamagata M, Nakai R, Asai T, Yamada Y, Kimura M, Ichihashi N. Influence of ultrasound focus depth on the association between echo intensity and intramuscular adipose tissue. Muscle Nerve 2022; 66:568-575. [PMID: 35822539 DOI: 10.1002/mus.27677] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 07/06/2022] [Accepted: 07/08/2022] [Indexed: 11/08/2022]
Abstract
INTRODUCTION/AIMS Attenuation of the US wave is a serious limitation of echo intensity (EI) on B-mode ultrasound (US). The aim of this study was to determine if the focus depth of US images influences the depth-dependent attenuation of EI and the relationship between EI and intramuscular adipose tissues (IntraMAT). METHODS The rectus femoris (RF) and vastus intermedius (VI) of the right thigh were studied in 135 adults (92 older, 43 younger). The EI on US images was measured at three focus depth conditions: top of the image, center of the RF, and center of the VI. The depth of the region of interest (ROI) was measured. Using water and fat images based on the two-point Dixon technique with 3.0 T MRI scanner, IntraMAT was calculated. RESULTS The correlation between EI and IntraMAT was stronger in the focus RF and VI conditions than in the focus top condition and stronger for RF than for VI. The depth of the ROI influenced the IntraMAT-adjusted residual EI more in the focus top condition than in the focus RF and VI conditions, and influenced VI more strongly than it did RF. DISCUSSION This study showed that by mitigating EI attenuation, EI with a focus depth adjusted to the ROI reflected IntraMAT more accurately than that without adjustment. However, it may not completely prevent the potential influence of depth-dependent attenuation of EI, especially for deeper muscles such as the VI. This article is protected by copyright. All rights reserved.
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Affiliation(s)
| | - Masashi Taniguchi
- Human Health Sciences, Graduate School of Medicine, Kyoto University
| | | | - Masahide Yagi
- Human Health Sciences, Graduate School of Medicine, Kyoto University
| | - Momoko Yamagata
- Human Development, Graduate School of Human Development and Environment, Kobe university
| | | | - Tsuyoshi Asai
- Faculty of Rehabilitation, Kansai Medical University
| | - Yosuke Yamada
- National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition
| | - Misaka Kimura
- Institute for Active Health, Kyoto University of Advanced Science
| | - Noriaki Ichihashi
- Human Health Sciences, Graduate School of Medicine, Kyoto University
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López-Gómez JJ, Benito-Sendín Plaar K, Izaola-Jauregui O, Primo-Martín D, Gómez-Hoyos E, Torres-Torres B, De Luis-Román DA. Muscular Ultrasonography in Morphofunctional Assessment of Patients with Oncological Pathology at Risk of Malnutrition. Nutrients 2022; 14. [PMID: 35458134 DOI: 10.3390/nu14081573] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 04/06/2022] [Accepted: 04/08/2022] [Indexed: 02/06/2023] Open
Abstract
Background: Muscular ultrasonography is a technique that allows assessing the amount and quality of muscle in a specific body region. The aim of the study was to compare the value of muscle ultrasonography in diagnosis of malnutrition with techniques such as anthropometry, handgrip strength and impedanciometry in patients with oncological pathology. Methods: Cross-sectional study in 43 patients with oncological pathology and high nutritional risk. Classical anthropometry (body mass index (BMI), arm circumference (AC), calf circumference (CC) and estimated appendicular muscle mass index (ASMI)) was performed. Body composition was measured with impedanciometry (BIA), phase angle (PA) and fat-free mass index (FFMI) and muscle ultrasonography of quadriceps rectus femoris (muscle area (MARA) and circumference (MCR) in section transverse). Malnutrition was diagnosed using the GLIM criteria and sarcopenia was assessed using EWGSOP2 criteria. Results: The mean age was 68.26 years (±11.88 years). In total, 23/20 of the patients were men/women. The BMI was 23.51 (4.75) kg/m2. The ASMI was 6.40 (1.86) kg/m2. The MARA was 3.31 cm2 in ultrasonography. In impedanciometry, phase angle was 4.91 (0.75)°; the FFMI was 17.01 kg/m2 (±2.65 kg/m2). A positive correlation was observed between the MARA with anthropometric measurements (AC: r = 0.39, p = 0.009; CC: r = 0.44, p < 0.01; ASMI: r = 0.47, p < 0.001); and with BIA (FFMI: r = 0.48, p < 0.01 and PA: r = 0.45, p < 0.001). Differences were observed when comparing the MARA based on the diagnosis of sarcopenia (Sarcopenia: 2.47 cm2 (±0.54 cm2); no sarcopenia: 3.65 cm2 (±1.34 cm2); p = 0.02). Conclusions: Muscle ultrasonography correlates with body composition measurement techniques such as BIA and anthropometry in patients with cancer.
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Nagae M, Umegaki H, Yoshiko A, Fujita K, Komiya H, Watanabe K, Yamada Y, Sakai T, Kuzuya M. Muscle changes on muscle ultrasound and adverse outcomes in acute hospitalized older adults. Nutrition 2022; 102:111698. [DOI: 10.1016/j.nut.2022.111698] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 04/02/2022] [Accepted: 04/10/2022] [Indexed: 10/18/2022]
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Nagae M, Umegaki H, Yoshiko A, Fujita K, Komiya H, Watanabe K, Yamada Y, Sakai T. Muscle Evaluation and Hospital-Associated Disability in Acute Hospitalized Older Adults. J Nutr Health Aging 2022; 26:681-687. [PMID: 35842758 PMCID: PMC9194346 DOI: 10.1007/s12603-022-1814-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 05/27/2022] [Indexed: 11/27/2022]
Abstract
OBJECTIVES We aimed to examine the association of muscle evaluation, including muscle ultrasound, with hospital-associated disability (HAD), focusing on ADL categories. DESIGN A prospective observational cohort study. SETTING AND PARTICIPANTS We recruited patients aged 65 years or older who were admitted to the geriatric ward of an acute hospital between October 2019 and September 2021. MEASUREMENTS Handgrip strength, bioimpedance analyzer-determined skeletal muscle mass, bilateral thigh muscle thickness (BATT), and the echo intensity of the rectus femoris on muscle ultrasound were performed as muscle assessments. HAD was evaluated separately for mobility impairments and self-care impairments. RESULTS In total, 256 individuals (mean age, 85.2 years; male sex, 41.8%) were analyzed. HAD in mobility was more common than HAD in self-care (37.5% vs. 30.0%). Only BATT was independently associated with HAD in mobility in multiple logistic regression analysis. There was no significant association between muscle indicators and HAD in self-care. CONCLUSION A lower BATT was associated with a higher prevalence of HAD in mobility, suggesting the need to reconsider muscle assessment methods in hospitalized older adults. In addition, approaches other than physical may be required, such as psychosocial and environmental interventions to improve HAD in self-care.
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Affiliation(s)
- M Nagae
- Hiroyuki Umegaki. Department of Community Healthcare and Geriatrics, Nagoya University Graduate School of Medicine, 65 Tsuruma-cho, Showa-ku, Nagoya, Aichi 466-8550, Japan. E-mail:
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Abstract
BACKGROUND Multiple sclerosis (MS) is an autoimmune neurodegenerative disease of the central nervous system. Sarcopenia, which is characterized by the loss of physical performance and poor outcomes, has recently become the focus of research. However, the relationship between sarcopenia and MS has not yet been investigated. This study aims to determine the prevalence of sarcopenia in MS patients and investigate the factors associated with sarcopenia. METHODS One hundred and one MS patients who can walk without assistance and 55 healthy controls were included. Handgrip strength (HGS) and gait speed tests were applied to all participants. Additionally, anterior thigh muscle thickness (anterior TMT) and skeletal muscle mass index (SSMI) were estimated by ultrasound and bioelectrical impedance analysis (BIA), respectively. According to these tests, MS patients were grouped as either sarcopenic or non-sarcopenic. The groups were compared using clinical and laboratory data, handgrip strength and performance test, Modified Fatigue Impact Scale (MFIS), and the Godin leisure-time exercise questionnaire (GLTEQ). RESULTS HGS, gait speed, fat free mass (FFM), SMMI, anterior TMT, and sonographic thigh adjustment ratio (STAR) values in patients with MS were significantly lower than healthy controls for both sexes (for female, p:0.001, p:0.001, p:0.010, p:0.049, p:0.001, and p:0.101, respectively; for male, all p:0.001). Compared with healthy controls, MS patients had a significantly lower GLTEQ score (p:0.001), while the MFIS score (p:0.001) was higher. According to STAR, HGS, and gait speed, sarcopenia was diagnosed in 12 (17.64%) female and 7 (21.21%) male patients with MS. Whole-body sarcopenia was diagnosed in only 11 (10.9%) of the patients by BIA. HGS, gait speed, FFM, anterior TMT, and STAR values in sarcopenic MS patients were significantly lower than in non-sarcopenic for females (p:0.001, p:0.001, p:0.004, p:0.001, and p:0.001, respectively) and males (p:0.001, p:0.001, p:0.011, p:0.003, and p:0.001, respectively). MFIS score was significantly higher in sarcopenic patients than non-sarcopenic for both females (p:0.001) and males (p:0.036), but only the physical fatigue subscale was significantly higher. While the physical fatigue score was negatively correlated with GLTEQ in MS patients (r:-0.276, p:0.005), it was positively correlated with the expanded disability status scale (r:0.409, p:0.001). CONCLUSION We detected that approximately one-fifth of MS patients have sarcopenia. Regional sarcopenia was more prevalent than whole body sarcopenia. We found a high degree of fatigue and lack of exercise in sarcopenic MS patients.
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Affiliation(s)
- Hatice Yuksel
- Department of Neurology, Ankara City Hospital, Ankara, Turkey.
| | - Mehtap Balaban
- Department of Radiology, Ankara City Hospital, Ankara, Turkey
| | | | - Semra Mungan
- Department of Neurology, Ankara City Hospital, Ankara, Turkey
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González-Fernández M, Perez-Nogueras J, Serrano-Oliver A, Torres-Anoro E, Sanz-Arque A, Arbones-Mainar JM, Sanz-Paris A. Masseter Muscle Thickness Measured by Ultrasound as a Possible Link with Sarcopenia, Malnutrition and Dependence in Nursing Homes. Diagnostics (Basel) 2021; 11:1587. [PMID: 34573928 PMCID: PMC8469670 DOI: 10.3390/diagnostics11091587] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/06/2021] [Accepted: 08/30/2021] [Indexed: 01/13/2023] Open
Abstract
Sarcopenia is a progressive and generalized loss of skeletal muscle mass and strength. It is frequently associated with malnutrition and dependence in nursing homes. Masticatory muscle strength could be the link between sarcopenia, malnutrition and dependence. We aimed to study the relation between sarcopenia, malnutrition and dependence with masseter muscle thickness measured by ultrasound. A cross-sectional study was realized, with 464 patients from 3 public nursing homes in Zaragoza (Spain). The diagnosis of sarcopenia was assessed according to the European Working Group on Sarcopenia in Older People 2 criteria, malnutrition by the Mini Nutritional Assessment (MNA) and the Global Leadership Initiative on Malnutrition (GLIM) criteria and functional capacity by the Barhel Index and the texture diet. Masseter muscle thickness (MMT) was measured by ultrasound. The median age was 84.7 years, and 70% of the participants were women. Sarcopenia was confirmed in 39.2% of patients, malnutrition in 26.5% (risk 47.8%), total dependence in 37.9% and diet texture was modified in 44.6%. By logistic regression, once the model was adjusted for age, sex, Barthel index and texture diet, our analyses indicated that each 1 mm decrease in MMT increased the risk of sarcopenia by ~57% (OR: 0.43), the risk of malnutrition by MNA by ~63% (OR: 0.37) and the risk of malnutrition by GLIM by ~34% (OR: 0.66). We found that MMT was reduced in sarcopenic, malnourished and dependent patients, and it could be the common point of a vicious cycle between sarcopenia and malnutrition. Further studies are needed to establish causality.
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Affiliation(s)
| | | | | | | | | | - Jose M. Arbones-Mainar
- Instituto de Investigación Sanitaria Aragon (IIS-Aragon), 50007 Zaragoza, Spain;
- Adipocyte and Fat Biology Laboratory (AdipoFat), Translational Research Unit, Instituto Aragones de Ciencias de la Salud (IACS), University Hospital Miguel Servet, 50007 Zaragoza, Spain
- Centro de Investigación Biomédica en Red Fisiopatología Obesidad y Nutrición (CIBERObn), Instituto Salud Carlos III, 28029 Madrid, Spain
| | - Alejandro Sanz-Paris
- Nutrition Department, University Hospital Miguel Servet, 50007 Zaragoza, Spain;
- Instituto de Investigación Sanitaria Aragon (IIS-Aragon), 50007 Zaragoza, Spain;
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