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Barbosa FDS, Nascimento BSS, Silva MCDFS, Cerqueira TCF, de Santana Filho VJ. Impact of Muscle Changes Assessed by Ultrasonography on Muscle Strength and Functioning after ICU Discharge: A Systematic Review with Meta-Analysis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2024; 21:908. [PMID: 39063485 PMCID: PMC11276795 DOI: 10.3390/ijerph21070908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2024] [Revised: 07/01/2024] [Accepted: 07/02/2024] [Indexed: 07/28/2024]
Abstract
BACKGROUND Ultrasonography has been used to identify structural, quantitative, and qualitative muscle changes. These changes have been assessed in different muscles during ICU stays; however, it is unclear if it can predict functioning after ICU discharge. OBJECTIVE To analyze the relationship between muscle changes assessed by ultrasonography and the strength and functioning of ICU survivors. METHODS A systematic review with a meta-analysis was performed according to the MOOSE guidelines and registered in PROSPERO. Searches of the following databases were performed by two of the authors: PubMed, Cinahl, Embase, Scopus, LILACS, Web of Science, and Science Direct. Qualitative analysis was performed using NOS and AHRQ scales. Meta-analysis was performed using the "R", "metafor" package. Heterogeneity was assessed by I2 and Cochran's Q test. Meta-regression analyses were performed to verify the moderators, and funnel plots and Egger's regression intercept test were used to analyze the publication bias. RESULTS Sixteen articles were included in the qualitative assessment, and nine were used in the quantitative assessment. There is evidence of correlations between MT and muscle strength (r = 0.20 [0.11; 0.27]; p < 0.0001), and MT (r = 0.35 [0.19; 0.49]; p < 0.0001), CSA (r = 0.30 [0.10; 0.47]; p = 0.0038), EI (r = -0.29 [-0.53; -0.01]; p = 0.043) and mobility. In the subgroup analyses, some evidence of a correlation between specific muscles and strength and mobility were found. CONCLUSIONS There is evidence for the correlation between muscle characteristics assessed by US and functioning outcomes.
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Affiliation(s)
- Felipe Douglas Silva Barbosa
- Department of Family Health and Occupational Therapy, Faculty of Medicine, Federal University of Bahia, Salvador 40026-010, BA, Brazil
- Post-Graduate Program in Health Sciences, Federal University of Sergipe, Aracaju 49060-100, SE, Brazil;
| | - Brenda Stephanie Santos Nascimento
- Department of Physioterapy, Campus Lagarto, Federal University of Sergipe, Lagarto 49400-000, SE, Brazil; (B.S.S.N.); (M.C.d.F.S.S.); (T.C.F.C.)
| | - Maysa Carolina de França Souza Silva
- Department of Physioterapy, Campus Lagarto, Federal University of Sergipe, Lagarto 49400-000, SE, Brazil; (B.S.S.N.); (M.C.d.F.S.S.); (T.C.F.C.)
| | - Telma Cristina Fontes Cerqueira
- Department of Physioterapy, Campus Lagarto, Federal University of Sergipe, Lagarto 49400-000, SE, Brazil; (B.S.S.N.); (M.C.d.F.S.S.); (T.C.F.C.)
| | - Valter Joviniano de Santana Filho
- Post-Graduate Program in Health Sciences, Federal University of Sergipe, Aracaju 49060-100, SE, Brazil;
- Department of Physioterapy, Campus São Cristóvão, Federal University of Sergipe, São Cristóvão 49100-000, SE, Brazil
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Jenkins TO, Patel S, Edwards GD, Nolan CM, Canavan J, Kon S, Jones S, Barker RE, Littlemore H, Maddocks M, Man WDC. Longitudinal change in ultrasound-derived rectus femoris cross-sectional area in COPD. ERJ Open Res 2024; 10:00123-2024. [PMID: 39076527 PMCID: PMC11284593 DOI: 10.1183/23120541.00123-2024] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 03/27/2024] [Indexed: 07/31/2024] Open
Abstract
Background Skeletal muscle dysfunction is common in COPD. Ultrasound-derived rectus femoris cross-sectional area (RFCSA) is a radiation free, non-invasive measure of muscle bulk that relates to quadriceps strength in people with COPD. However, there are limited longitudinal data for RFCSA, and it is not known whether longitudinal change in RFCSA reflects change in quadricep strength, exercise capacity, lower limb function or muscle mass. We aimed to quantify longitudinal change in ultrasound-derived RFCSA and assess its relationship with change in quadriceps maximal voluntary contraction (QMVC), incremental shuttle walk test (ISWT), five-repetition sit-to-stand (5STS) and fat-free mass (FFM) over 12 months in people with COPD. Methods We measured ultrasound-derived RFCSA, QMVC, ISWT, 5STS and FFM (measured by bioelectric impedance analysis) at baseline and 12 months in 169 people with stable COPD. Change was correlated using Pearson's or Spearman's coefficients. Results Baseline characteristics: mean±sd age 70.4±9.4 years; FEV1 53.3±18.9% predicted. Over the course of 12 months mean RFCSA change was -33.7 mm2 (99% CI -62.6- -4.9 mm2; p=0.003) representing a mean±sd percentage change of -1.8±33.5%. There was a weak correlation between change in RFCSA and FFM (r=0.205, p=0.009), but not with change in QMVC, ISWT or 5STS. Conclusion There is a statistically significant decrease in ultrasound-derived RFCSA over 12 months in people with stable COPD, but this decrease does not correlate with change in quadriceps strength, exercise capacity, FFM or lower limb function.
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Affiliation(s)
- Timothy O. Jenkins
- Harefield Respiratory Research Group, Royal Brompton and Harefield Hospitals, Guy's and St Thomas’ NHS Foundation Trust, London, UK
| | - Suhani Patel
- Harefield Respiratory Research Group, Royal Brompton and Harefield Hospitals, Guy's and St Thomas’ NHS Foundation Trust, London, UK
- National Heart and Lung Institute, Imperial College London, London, UK
| | - George D. Edwards
- Harefield Respiratory Research Group, Royal Brompton and Harefield Hospitals, Guy's and St Thomas’ NHS Foundation Trust, London, UK
| | - Claire M. Nolan
- Harefield Respiratory Research Group, Royal Brompton and Harefield Hospitals, Guy's and St Thomas’ NHS Foundation Trust, London, UK
- College of Medicine, Health and Life Sciences, Department of Health Sciences, Brunel University London, London, UK
| | - Jane Canavan
- Harefield Respiratory Research Group, Royal Brompton and Harefield Hospitals, Guy's and St Thomas’ NHS Foundation Trust, London, UK
| | - Samantha Kon
- Harefield Respiratory Research Group, Royal Brompton and Harefield Hospitals, Guy's and St Thomas’ NHS Foundation Trust, London, UK
- Department of Respiratory Medicine, The Hillingdon Hospitals NHS Foundation Trust, London, UK
| | - Sarah Jones
- Harefield Respiratory Research Group, Royal Brompton and Harefield Hospitals, Guy's and St Thomas’ NHS Foundation Trust, London, UK
- Cardiac and Respiratory Specialist Service, Berkshire Healthcare NHS Foundation Trust, Reading, UK
| | - Ruth E. Barker
- Insight Team, Wessex Academic Health Science Network (trading as Health Innovation Wessex), Southampton, UK
| | | | - Matthew Maddocks
- Cicely Saunders Institute of Palliative Care, Policy and Rehabilitation, Florence Nightingale Faculty of Nursing, Midwifery and Palliative Care, King's College London, London, UK
| | - William D-C. Man
- Harefield Respiratory Research Group, Royal Brompton and Harefield Hospitals, Guy's and St Thomas’ NHS Foundation Trust, London, UK
- National Heart and Lung Institute, Imperial College London, London, UK
- Faculty of Life Sciences and Medicine, King's College London, London, UK
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Rollinson TC, Connolly B, Denehy L, Hepworth G, Berlowitz DJ, Berney S. Ultrasound-derived rates of muscle wasting in the intensive care unit and in the post-intensive care ward for patients with critical illness: Post hoc analysis of an international, multicentre randomised controlled trial of early rehabilitation. Aust Crit Care 2024:S1036-7314(24)00076-6. [PMID: 38834392 DOI: 10.1016/j.aucc.2024.03.007] [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: 12/05/2023] [Revised: 03/06/2024] [Accepted: 03/25/2024] [Indexed: 06/06/2024] Open
Abstract
BACKGROUND AND AIMS Muscle wasting results in weakness for patients with critical illness. We aim to explore ultrasound-derived rates of change in skeletal muscle in the intensive care unit (ICU) and following discharge to the post-ICU ward. DESIGN Post hoc analysis of a multicentre randomised controlled trial of functional-electrical stimulated cycling, recumbent cycling, and usual care delivered in intensive care. METHOD Participants underwent ultrasound assessment of rectus femoris at ICU admission, weekly in the ICU, upon awakening, ICU discharge, and hospital discharge. The primary outcome was rate of change in rectus femoris cross-sectional area (ΔRFCSA) in mm2/day in the ICU (enrolment to ICU discharge) and in the post-ICU ward (ICU discharge to hospital discharge). Secondary outcomes included rate of change in echo intensity (ΔEI), standard deviation of echo intensity (ΔEISD), and the intervention effect on ultrasound measures. Echo intensity is a quantitative assessment of muscle quality. Elevated echo intensity may indicate fluid infiltration, adipose tissue, and reduced muscle quality. RESULTS 154 participants were included (mean age: 58 ± 15 years, 34% female). Rectus femoris cross-sectional area declined in the ICU (-4 mm2/day [95% confidence interval {CI}: -9 to 1]) and declined further in the ward (-9 mm2/day [95% CI: -14 to -3]) with a mean difference between ICU and ward of -5 mm2/day ([95% CI: -2, to 11]; p = 0.1396). There was a nonsignificant difference in ΔEI between in-ICU and the post-ICU ward of 1.2 ([95% CI: -0.1 to 2.6]; p = 0.0755), a statistically significant difference in ΔEISD between in-ICU and in the post-ICU ward of 1.0 ([95% CI, 0.5 to 1.5]; p = 0.0003), and no difference in rate of change in rectus femoris cross-sectional area between groups in intensive care (p = 0.411) or at hospital discharge (p = 0.1309). CONCLUSIONS Muscle wasting occurs in critical illness throughout the hospital admission. The average rate of loss in muscle cross-sectional area does not slow after ICU discharge, even with active rehabilitation.
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Affiliation(s)
- Thomas C Rollinson
- Department of Physiotherapy, Division of Allied Health, Austin Health, Melbourne, Australia; Department of Physiotherapy, The University of Melbourne, Melbourne, Australia; Institute for Breathing and Sleep, Melbourne, Australia.
| | - Bronwen Connolly
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, United Kingdom; Lane Fox Clinical Respiratory Physiology Research Centre, Guy's and St. Thomas' NHS Foundation Trust, London, United Kingdom; Centre for Human and Applied Physiological Sciences, King's College London, United Kingdom
| | - Linda Denehy
- Department of Physiotherapy, The University of Melbourne, Melbourne, Australia; Peter MacCallum Cancer Centre, Melbourne, Australia
| | - Graham Hepworth
- Statistical Consulting Centre, The University of Melbourne, Melbourne, Australia
| | - David J Berlowitz
- Department of Physiotherapy, Division of Allied Health, Austin Health, Melbourne, Australia; Department of Physiotherapy, The University of Melbourne, Melbourne, Australia; Institute for Breathing and Sleep, Melbourne, Australia
| | - Sue Berney
- Department of Physiotherapy, Division of Allied Health, Austin Health, Melbourne, Australia; Department of Physiotherapy, The University of Melbourne, Melbourne, Australia
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Palakshappa JA, Batt JAE, Bodine SC, Connolly BA, Doles J, Falvey JR, Ferrante LE, Files DC, Harhay MO, Harrell K, Hippensteel JA, Iwashyna TJ, Jackson JC, Lane-Fall MB, Monje M, Moss M, Needham DM, Semler MW, Lahiri S, Larsson L, Sevin CM, Sharshar T, Singer B, Stevens T, Taylor SP, Gomez CR, Zhou G, Girard TD, Hough CL. Tackling Brain and Muscle Dysfunction in Acute Respiratory Distress Syndrome Survivors: NHLBI Workshop Report. Am J Respir Crit Care Med 2024; 209:1304-1313. [PMID: 38477657 PMCID: PMC11146564 DOI: 10.1164/rccm.202311-2130ws] [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: 11/20/2023] [Accepted: 03/12/2024] [Indexed: 03/14/2024] Open
Abstract
Acute respiratory distress syndrome (ARDS) is associated with long-term impairments in brain and muscle function that significantly impact the quality of life of those who survive the acute illness. The mechanisms underlying these impairments are not yet well understood, and evidence-based interventions to minimize the burden on patients remain unproved. The NHLBI of the NIH assembled a workshop in April 2023 to review the state of the science regarding ARDS-associated brain and muscle dysfunction, to identify gaps in current knowledge, and to determine priorities for future investigation. The workshop included presentations by scientific leaders across the translational science spectrum and was open to the public as well as the scientific community. This report describes the themes discussed at the workshop as well as recommendations to advance the field toward the goal of improving the health and well-being of ARDS survivors.
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Affiliation(s)
| | - Jane A. E. Batt
- University of Toronto Temerty Faculty of Medicine, Toronto, Ontario, Canada
| | - Sue C. Bodine
- Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma
- Oklahoma City Veterans Affairs Medical Center, Oklahoma City, Oklahoma
| | - Bronwen A. Connolly
- Wellcome-Wolfson Institute for Experimental Medicine, Queen’s University, Belfast, United Kingdom
| | - Jason Doles
- Indiana University School of Medicine, Indianapolis, Indiana
| | - Jason R. Falvey
- University of Maryland School of Medicine, Baltimore, Maryland
| | | | - D. Clark Files
- Wake Forest University School of Medicine, Winston-Salem, North Carolina
| | - Michael O. Harhay
- University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | | | | | | | | | - Meghan B. Lane-Fall
- University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Michelle Monje
- Howard Hughes Medical Institute, Stanford University, Stanford, California
| | - Marc Moss
- University of Colorado School of Medicine, Aurora, Colorado
| | - Dale M. Needham
- Johns Hopkins University School of Medicine, Baltimore, Maryland
| | | | - Shouri Lahiri
- Cedars Sinai Medical Center, Los Angeles, California
| | - Lars Larsson
- Center for Molecular Medicine, Karolinska Institute, Solna, Sweden
- Department of Physiology & Pharmacology, Karolinska Institute and Viron Molecular Medicine Institute, Boston, Massachusetts
| | - Carla M. Sevin
- Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Tarek Sharshar
- Anesthesia and Intensive Care Department, GHU Paris Psychiatry and Neurosciences, Institute of Psychiatry and Neurosciences of Paris, INSERM U1266, University Paris Cité, Paris, France
| | | | | | | | - Christian R. Gomez
- Division of Lung Diseases, National Heart, Lung, and Blood Institute, Bethesda, Maryland
| | - Guofei Zhou
- Division of Lung Diseases, National Heart, Lung, and Blood Institute, Bethesda, Maryland
| | - Timothy D. Girard
- Center for Research, Investigation, and Systems Modeling of Acute Illness, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
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Ginz HF, Iaizzo PA, Schweikert K, Durfee WK. Long-term monitoring of stimulated lower leg skeletal muscle forces compared with voluntary contractions in myopathy patients - A five-year follow-up report on 5 adults. J Bodyw Mov Ther 2024; 38:8-12. [PMID: 38763619 DOI: 10.1016/j.jbmt.2024.01.011] [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: 03/02/2023] [Revised: 09/15/2023] [Accepted: 01/13/2024] [Indexed: 05/21/2024]
Abstract
OBJECTIVE Long-term assessments of lower leg muscle forces in ambulant patients with distal myopathies. METHODS AND MATERIALS Over a five-year period, we measured involuntary, nerve-stimulated, isometric torques of the ankle dorsiflexors in a group of ambulant patients with myopathies and compared results with voluntary Manual Muscle Tests (MMT). RESULTS From ten recruited patients, five could finish the five-year protocol. Twenty-seven force measurements sessions (one per year; 1,5 hours duration each) were performed. These patients exhibited low, stable torques or increased minimally (0.2 Newtonmeter, versus 0.1 Nm, ns; 0.7 vs. 1.0, ns; 3.4 vs. 3.5, ns; 0.2 vs. 0.1, ns; 0.8 vs. 1.5, P 0.0004 initial values vs. 5-year values, [norm: 3.9-5.7 Nm]). A 6th patient, eliciting low torque values (0.1 Nm) early passed away. Contraction times inversely correlated with MMT. MMT provided similar overall force abilities. CONCLUSIONS Long-term monitoring of lower leg muscle forces in ambulant patients is limited by the patient's health status. In a small group of patients, stimulated lower leg forces did not worsen over many years relative to their diagnosed myopathies. Tracking involuntary forces, could be a useful monitoring providing phenotypic information, in addition to MMT. Future devices should be small and be simply self-applying, designed for subjects' domestic use and web-based data transfer. CLINICALTRIALS gov NCT00735384.
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Affiliation(s)
- Hans F Ginz
- Department of Anesthesia and Biomedicine, University Hospital, Spitalstrasse 21, CH-4031, Basel, Switzerland.
| | - Paul A Iaizzo
- Department of Surgery, Integrative Biology and Physiology, University of Minnesota, B172 Mayo, MMC 195, 420 Delaware Street S.E., Minneapolis, MN, 55455, USA
| | - Kathi Schweikert
- FMH Neurology, REHAB Basel AG, Im Burgfelderhof 40, CH-4025, Basel, Switzerland
| | - William K Durfee
- Department of Mechanical Engineering, University of Minnesota, 111 Church St. S.E., Minneapolis, MN, 55455, USA
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Lima J, Foletto E, Cardoso RCB, Garbelotto C, Frenzel AP, Carneiro JU, Carpes LS, Barbosa-Silva TG, Gonzalez MC, Silva FM. Ultrasound for measurement of skeletal muscle mass quantity and muscle composition/architecture in critically ill patients: A scoping review on studies' aims, methods, and findings. Clin Nutr 2024; 43:95-110. [PMID: 38016244 DOI: 10.1016/j.clnu.2023.11.003] [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: 07/01/2023] [Revised: 10/24/2023] [Accepted: 11/06/2023] [Indexed: 11/30/2023]
Abstract
AIMS This scoping review aimed to identify, explore, and map the objectives, methodological aspects, and results of studies that used ultrasound (US) to assess skeletal muscle (SM) in critically ill patients. METHODS A scoping review was conducted according to the Joanna Briggs Institute's methodology. All studies that evaluated SM parameters from the US in patients admitted to the intensive care unit (ICU) were considered eligible. We categorized muscle thickness and cross-sectional area as parameters for assessing SM quantity, while echogenicity, fascicle length, and pennation angle analysis were used to evaluate muscle "quality" (composition/architecture). A literature search was conducted using four databases for articles published until December 2022. Independent reviewers selected the studies and extracted data. Descriptive statistics were calculated to present the results. RESULTS A total of 107 studies were included, the majority of which were prospective cohort studies (59.8 %) conducted in general ICUs (49.5 %). The most frequent objective of the studies was to evaluate SM quantity depletion during the ICU stay (25.2 %), followed by determining whether a specific intervention would modify SM (21.5 %). Most studies performed serial SM evaluations (76.1 %). The rectus femoris muscle thickness was evaluated in most studies (67.9 %), followed by the rectus femoris cross-sectional area (54.3 %) and the vastus intermedius muscle thickness (40.2 %). The studies demonstrated the feasibility and reproducibility of US for SM evaluation, especially related to quantitative parameters. Most studies (70.3 %) reported significant SM quantity depletion during hospitalization. However, the accuracy of the US in measuring SM varied across the studies. CONCLUSIONS The lack of detailed description and standardization in the protocols adopted by the studies included in this scoping review precludes the translation of the evidence related to US for SM assessment into clinical practice.
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Affiliation(s)
- Júlia Lima
- Nutrition Science Graduate Program, Federal University of Health Sciences of Porto Alegre, Porto Alegre Brazil
| | - Estéfani Foletto
- Nutrition Course, Department, Federal University of Health Sciences of Porto Alegre, Porto Alegre Brazil
| | - Rafaella C B Cardoso
- Nutrition Course, Department, Federal University of Health Sciences of Porto Alegre, Porto Alegre Brazil
| | - Charlles Garbelotto
- Nutrition Course, Department, Federal University of Health Sciences of Porto Alegre, Porto Alegre Brazil
| | - Aline P Frenzel
- Postgraduate Program in Health and Behavior, Catholic University of Pelotas, Pelotas Brazil
| | - Juliana U Carneiro
- Multiprofessional Residency Program: Intensive Care. Federal University of Health Sciences of Porto Alegre, Porto Alegre Brazil
| | - Larissa S Carpes
- Santa Casa de Misericórdia de Porto Alegre Hospital, Porto Alegre Brazil
| | - Thiago G Barbosa-Silva
- Department of General Surgery, Faculty of Medicine, Federal University of Pelotas, Pelotas Brazil
| | | | - Flávia M Silva
- Nutrition Department and Nutrition Science Graduate Program. Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre Brazil.
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Jameson TSO, Caldow MK, Stephens F, Denehy L, Lynch GS, Koopman R, Krajcova A, Urban T, Berney S, Duska F, Puthucheary Z. Inflammation and altered metabolism impede efficacy of functional electrical stimulation in critically ill patients. Crit Care 2023; 27:428. [PMID: 37932834 PMCID: PMC10629203 DOI: 10.1186/s13054-023-04664-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 09/26/2023] [Indexed: 11/08/2023] Open
Abstract
BACKGROUND Critically ill patients suffer from acute muscle wasting, which is associated with significant physical functional impairment. We describe data from nested muscle biopsy studies from two trials of functional electrical stimulation (FES) that did not shown improvements in physical function. METHODS Primary cohort: single-centre randomized controlled trial. Additional healthy volunteer data from patients undergoing elective hip arthroplasty. Validation cohort: Four-centre randomized controlled trial. INTERVENTION FES cycling for 60-90min/day. ANALYSES Skeletal muscle mRNA expression of 223 genes underwent hierarchal clustering for targeted analysis and validation. RESULTS Positively enriched pathways between healthy volunteers and ICU participants were "stress response", "response to stimuli" and "protein metabolism", in keeping with published data. Positively enriched pathways between admission and day 7 ICU participants were "FOXO-mediated transcription" (admission = 0.48 ± 0.94, day 7 = - 0.47 ± 1.04 mean log2 fold change; P = 0.042), "Fatty acid metabolism" (admission = 0.50 ± 0.67, day 7 = 0.07 ± 1.65 mean log2 fold change; P = 0.042) and "Interleukin-1 processing" (admission = 0.88 ± 0.50, day 7 = 0.97 ± 0.76 mean log2 fold change; P = 0.054). Muscle mRNA expression of UCP3 (P = 0.030) and DGKD (P = 0.040) decreased in both cohorts with no between group differences. Changes in IL-18 were not observed in the validation cohort (P = 0.268). Targeted analyses related to intramuscular mitochondrial substrate oxidation, fatty acid oxidation and intramuscular inflammation showed PPARγ-C1α; (P < 0.001), SLC25A20 (P = 0.017) and UCP3 (P < 0.001) decreased between admission and day 7 in both arms. LPIN-1 (P < 0.001) and SPT1 (P = 0.044) decreased between admission and day 7. IL-18 (P = 0.011) and TNFRSF12A (P = 0.009) increased in both arms between admission and day 7. IL-1β (P = 0.007), its receptor IL-1R1 (P = 0.005) and IL-6R (P = 0.001) decreased in both arms between admission and day 7. No between group differences were seen in any of these (all p > 0.05). CONCLUSIONS Intramuscular inflammation and altered substrate utilization are persistent in skeletal muscle during first week of critical illness and are not improved by the application of Functional Electrical Stimulation-assisted exercise. Future trials of exercise to prevent muscle wasting and physical impairment are unlikely to be successful unless these processes are addressed by other means than exercise alone.
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Affiliation(s)
- T S O Jameson
- Nutritional Physiology Group, Department of Sport and Health Sciences, College of Life and Environmental Sciences, University of Exeter, Exeter, Devon, UK
| | - M K Caldow
- Centre for Muscle Research, Department of Anatomy and Physiology, The University of Melbourne, Melbourne, VIC, Australia
| | - F Stephens
- Nutritional Physiology Group, Department of Sport and Health Sciences, College of Life and Environmental Sciences, University of Exeter, Exeter, Devon, UK
| | - L Denehy
- Department of Physiotherapy, School of Health Sciences, The University of Melbourne, Melbourne, Australia
| | - G S Lynch
- Centre for Muscle Research, Department of Anatomy and Physiology, The University of Melbourne, Melbourne, VIC, Australia
| | - R Koopman
- Centre for Muscle Research, Department of Anatomy and Physiology, The University of Melbourne, Melbourne, VIC, Australia
| | - A Krajcova
- Department of Anaesthesia and Intensive Care Medicine, Third Faculty of Medicine, Charles University, FNKV University Hospital, Srobarova 50, 10034, Prague, Czech Republic
| | - T Urban
- Department of Anaesthesia and Intensive Care Medicine, Third Faculty of Medicine, Charles University, FNKV University Hospital, Srobarova 50, 10034, Prague, Czech Republic
| | - S Berney
- Department of Physiotherapy, School of Health Sciences, The University of Melbourne, Melbourne, Australia
- Department of Physiotherapy Division of Allied, Health Austin Health, Austin, TX, USA
| | - F Duska
- Department of Anaesthesia and Intensive Care Medicine, Third Faculty of Medicine, Charles University, FNKV University Hospital, Srobarova 50, 10034, Prague, Czech Republic.
| | - Z Puthucheary
- William Harvey Research Institute, Barts and The London School of Medicine, Queen Mary University of London, London, UK
- Adult Critical Care Unit, Royal London Hospital Barts Health NHS Trust, London, UK
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Nascimento TS, de Queiroz RS, Ramos ACC, Martinez BP, Da Silva E Silva CM, Gomes-Neto M. Ultrasound Protocols to Assess Skeletal and Diaphragmatic Muscle in People Who Are Critically Ill: A Systematic Review. ULTRASOUND IN MEDICINE & BIOLOGY 2021; 47:3041-3067. [PMID: 34417065 DOI: 10.1016/j.ultrasmedbio.2021.06.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 06/21/2021] [Accepted: 06/23/2021] [Indexed: 06/13/2023]
Abstract
This study aims to review published studies that use protocols and ultrasound measurements to evaluate skeletal and diaphragmatic muscles in patients who are critically ill. We searched for references on databases through September 2020 and included in our systematic review studies that used muscular ultrasound to assess skeletal or diaphragm muscles in patients who are critically ill. Seventy-six studies were included, 32 (1720 patients) using skeletal-muscle ultrasound and 44 (2946 patients) using diaphragmatic-muscle ultrasound, with a total of 4666 patients. The population is predominantly adult men. As for designs, most studies (n = 62) were cohort studies. B-mode B was dominant in the evaluations. Medium-to-high frequency bands were used in the analysis of peripheral muscles and medium-to-low frequency bands for diaphragmatic muscles. Evaluation of the echogenicity, muscle thickness and pennation angle of the muscle was also reported. These variables are important in the composition of the diagnosis of muscle loss. Studies demonstrate great variability in their protocols, and sparse description of the important variables that can directly interfere with the quality and validity of these measures. Therefore, a document is needed that standardizes these parameters for ultrasound assessment in patients who are critically ill.
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Affiliation(s)
- Taís Silva Nascimento
- Physiotherapy Research Group, Federal University of Bahia, Brazil; Program in Medicine and Health of the Faculty of Medicine, Federal University of Bahia, Salvador, Brazil.
| | - Rodrigo Santos de Queiroz
- Department of Health 1, State University of Southwest Bahia, Brazil; Program in Medicine and Health of the Faculty of Medicine, Federal University of Bahia, Salvador, Brazil
| | | | - Bruno Prata Martinez
- Physiotherapy Research Group, Federal University of Bahia, Brazil; Physical Therapy Department, Federal University of Bahia, Brazil; Program in Medicine and Health of the Faculty of Medicine, Federal University of Bahia, Salvador, Brazil
| | | | - Mansueto Gomes-Neto
- Physical Therapy Department, Federal University of Bahia, Brazil; Program in Medicine and Health of the Faculty of Medicine, Federal University of Bahia, Salvador, Brazil
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Relationship Between Skeletal Muscle Area and Density and Clinical Outcome in Adults Receiving Venovenous Extracorporeal Membrane Oxygenation. Crit Care Med 2021; 49:e350-e359. [PMID: 33497166 DOI: 10.1097/ccm.0000000000004827] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
OBJECTIVES To investigate the prevalence of low skeletal muscle index (area normalized for height) and density, their trajectory of change, and to determine associations with clinical outcome in adults with severe respiratory failure requiring venovenous extracorporeal membrane oxygenation. DESIGN Prospective observational study. PATIENTS Adults receiving venovenous extracorporeal membrane oxygenation for a minimum of 72 hours and a maximum of 6 months between September 2010 and June 2017, who had a CT scan which included the third lumbar vertebra. INTERVENTION None. MEASUREMENTS AND MAIN RESULTS Skeletal muscle index and density was determined using Slice-O-Matic V5.0 (TomoVision, Montreal, QC, Canada). Low skeletal muscle index and density were defined using published criteria. Regression models were used to assess for associations between muscle index and density and clinical outcome. Two-hundred fifteen patients, median (interquartile range) age 46 years (35.0-57.0 yr) were included. Forty-five patients (21.1%) had low skeletal muscle index, and 48 (22.3%) had low skeletal muscle density on commencement of venovenous extracorporeal membrane oxygenation. Low skeletal muscle index was more prevalent in males (28.8% vs 11.6%; χ2 = 9.4; p = 0.002) and was associated with a longer duration of venovenous extracorporeal membrane oxygenation (B = 5.0; 95% CI, 0.2-9.9; p = 0.042). Higher skeletal muscle density was independently associated with ICU survival (odds ratio 1.6 per 10 Hounsfield units; 95% CI, 1.1-2.5; p = 0.025). No relationship was observed between skeletal muscle index nor density and physical function. Adequacy of energy and protein did not influence change in skeletal muscle index or density. CONCLUSIONS Low skeletal muscle index at the commencement of venovenous extracorporeal membrane oxygenation was associated with a longer duration of venovenous extracorporeal membrane oxygenation, whereas preserved skeletal muscle density was associated with improved survival.
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Flower L, Page A, Puthucheary Z. Should nutritional therapy be modified to account for mitochondrial dysfunction in critical illness? JPEN J Parenter Enteral Nutr 2021; 45:60-65. [PMID: 34115880 DOI: 10.1002/jpen.2190] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 04/21/2021] [Accepted: 05/10/2021] [Indexed: 11/07/2022]
Abstract
Metabolic dysfunction, and its associated muscle atrophy, remains the most common complication of critical care. At the centre of this is mitochondrial dysfunction, secondary to hypoxia and systemic inflammation. This leads to a bioenergetic crisis, with decreased intramuscular adenosine tri-phosphate content and a reduction in the highly energy dependent process of protein synthesis. Numerous methods have been studied to try and reduce these effects, with only limited success. Trials investigating the use of increased calorie and protein administration have instead found a decrease in relative lean body mass, and a potential increase in morbidity and mortality. Ketone bodies have been proposed as alternative substrates for metabolism in critical illness, with promising results seen in animal models. They are currently being investigated in critical care patients in the Alternative Substrates in the Critically Ill Subjects trial. The evidence to date suggests that individualised feeding regimens may be key in the nutritional approach to critical illness. Consideration of individual patient factors will need to be combined with personalised protein content, total energy load received, and the timings of such feeds. This review covers mitochondrial dysfunction in critical illness, and how it contributes to muscle wasting and the resultant morbidity and mortality and the scientific basis of why current nutritional approaches to date have not been successful in negating this effect. These two factors underpin the need for consideration of alternative nutritional strategies in the critically ill patient. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Luke Flower
- William Harvey Research Institute, Queen Mary University of London, London.,Department of Anaesthesia, University College Hospital, 235 Euston Road, London, UK
| | - Alexandria Page
- William Harvey Research Institute, Queen Mary University of London, London.,Adult Critical Care Unit, The Royal London Hospital, Barts Health NHS Trust, Whitechapel Road, London, UK
| | - Zudin Puthucheary
- William Harvey Research Institute, Queen Mary University of London, London.,Adult Critical Care Unit, The Royal London Hospital, Barts Health NHS Trust, Whitechapel Road, London, UK
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11
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Does Standard Physical Therapy Increase Quadriceps Strength in Chronically Ventilated Patients? A Pilot Study. Crit Care Med 2021; 48:1595-1603. [PMID: 32826429 PMCID: PMC7540619 DOI: 10.1097/ccm.0000000000004544] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVES Physical therapy is standard care for mechanically ventilated patients, but there is no evidence, using nonvolitional, objective measurements, that physical therapy increases muscle strength in this population. The present study tested the hypothesis that 2 weeks of standard, conventional physical therapy provided at a ventilator weaning facility would increase quadriceps strength in mechanically ventilated patients. DESIGN Prospective observational study. SETTING Ventilator weaning unit. PATIENTS Patients who were transferred from an acute care hospital because of failure to wean from mechanical ventilation and who were receiving physical therapy as prescribed by facility staff. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS We employed a novel, nonvolitional objective technique, quadriceps twitch force generation in response to femoral nerve magnetic stimulation, to assess leg strength before and after 2 weeks of conventional physical therapy. The duration and specific exercises provided to patients were also recorded. In a subset of patients, we measured muscle activation intensity using wireless electromyogram recordings. Indices of respiratory function (maximum inspiratory pressure generation and the rapid shallow breathing index) were also assessed. Patients' responses to 2 weeks of physical therapy were poor; on average, quadriceps twitch fell by -1.02 ± 0.71 Newtons. Neither physical therapy duration nor specific forms of exercise were identified to positively impact quadriceps twitch. Electromyogram recordings indicated that during training, muscle activation was poor. Consequently, therapists spent substantial time performing exercises that elicited little muscle activation. Physical therapy did not improve respiratory function. CONCLUSIONS Standard physical therapy delivered in a ventilator weaning facility failed to improve quadriceps leg strength in a majority of mechanically ventilated patients. The fact that mechanically ventilated patients fail to achieve high levels of muscle activation during physical therapy provides a potential explanation as to why physical therapy may often be ineffective. We speculate that use of novel methods which increase muscle activation during exercise may improve responses of mechanically ventilated patients to physical therapy.
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12
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13
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Kennouche D, Luneau E, Lapole T, Morel J, Millet GY, Gondin J. Bedside voluntary and evoked forces evaluation in intensive care unit patients: a narrative review. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2021; 25:157. [PMID: 33888128 PMCID: PMC8063302 DOI: 10.1186/s13054-021-03567-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 04/05/2021] [Indexed: 12/31/2022]
Abstract
Around one third of intensive care unit (ICU) patients will develop severe neuromuscular alterations, known as intensive care unit-acquired weakness (ICUAW), during their stay. The diagnosis of ICUAW is difficult and often delayed as a result of sedation or delirium. Indeed, the clinical evaluation of both Medical Research Council score and maximal voluntary force (e.g., using handgrip and/or handheld dynamometers), two independent predictors of mortality, can be performed only in awake and cooperative patients. Transcutaneous electrical/magnetic stimulation applied over motor nerves combined with the development of dedicated ergometer have recently been introduced in ICU patients in order to propose an early and non-invasive measurement of evoked force. The aim of this narrative review is to summarize the different tools allowing bedside force evaluation in ICU patients and the related experimental protocols. We suggest that non-invasive electrical and/or magnetic evoked force measurements could be a relevant strategy to characterize muscle weakness in the early phase of ICU and diagnose ICUAW.
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Affiliation(s)
- Djahid Kennouche
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM), Univ Lyon, UJM-Saint-Etienne, EA 7424, 42023, Saint-Etienne, France
| | - Eric Luneau
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM), Univ Lyon, UJM-Saint-Etienne, EA 7424, 42023, Saint-Etienne, France
| | - Thomas Lapole
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM), Univ Lyon, UJM-Saint-Etienne, EA 7424, 42023, Saint-Etienne, France
| | - Jérome Morel
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM), Univ Lyon, UJM-Saint-Etienne, EA 7424, 42023, Saint-Etienne, France.,Département d'anesthésie et de réanimation, Centre Hospitalier Universitaire, Saint- Etienne, France
| | - Guillaume Y Millet
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM), Univ Lyon, UJM-Saint-Etienne, EA 7424, 42023, Saint-Etienne, France.,Institut Universitaire de France (IUF), Paris, France
| | - Julien Gondin
- Institut NeuroMyoGène (INMG); CNRS 5310 - INSERM U1217 - UCBL1; Faculté de Médecine et de Pharmacie, 8 Avenue Rockefeller, 69008, Lyon, France.
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14
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Searching for the Responder, Unpacking the Physical Rehabilitation Needs of Critically Ill Adults: A REVIEW. J Cardiopulm Rehabil Prev 2020; 40:359-369. [PMID: 32956134 DOI: 10.1097/hcr.0000000000000549] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Survivors of critical illness can experience persistent deficits in physical function and poor health-related quality of life and utilize significant health care resources. Short-term improvements in these outcomes have been reported following physical rehabilitation. Safety and feasibility of delivering physical rehabilitation are established; however, low physical activity levels are observed throughout the recovery of patients. We provide examples on how physical activity may be increased through interdisciplinary models of service delivery. Recently, however, there has been an emergence of large randomized controlled trials reporting no effect on long-term patient outcomes. In this review, we use a proposed theoretical construct to unpack the findings of 12 randomized controlled trials that delivered physical rehabilitation during the acute hospital stay. We describe the search for the responder according to modifiers of treatment effect for physical function, health-related quality of life, and health care utilization outcomes. In addition, we propose tailoring and timing physical rehabilitation interventions to patient subgroups that may respond differently based on their impairments and perpetuating factors that hinder recovery. We examine in detail the timing, components, and dosage of the trial intervention arms. We also describe facilitators and barriers to physical rehabilitation implementation and factors that are influential in recovery from critical illness. Through this theoretical construct, we anticipate that physical rehabilitation programs can be better tailored to the needs of survivors to deliver appropriate interventions to patients who derive greatest benefit optimally timed in their recovery trajectory.
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15
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Jones JRA, Griffith DM. The 6 Ps of post-ICU recovery: application of a shared conceptual model. Curr Opin Clin Nutr Metab Care 2020; 23:367-372. [PMID: 32740161 DOI: 10.1097/mco.0000000000000682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE OF REVIEW We aimed to explore, through a conceptual model, how we can maximize the post-ICU recovery of patients with ICU-acquired weakness (ICU-AW). The '6 Ps' were used to structure our research questions, what are the Predisposing (pre-ICU patient characteristics), Precipitating (ICU exposures) and Perpetuating (hinder recovery) risk factors for ICU-AW (Problem) and what Protective strategies and Proactive treatment can we adopt to improve muscle mass, strength and function of these patients? RECENT FINDINGS Examination of the relationship between pre-ICU patient characteristics with ICU-AW and post-ICU factors that prolong recovery are limited. Our understanding of the pathophysiology of the condition is improving, however, much of the biological mechanisms of ICU-AW and persistent weakness remain unknown. Investigation into the ICU-AW phenotype and prediction tools would be of great clinical utility. Further research on ICU-AW muscle biology and recovery may permit the application of precision and personalized medicine to therapeutic interventions. SUMMARY A structured approach to clinical practice and future research to better understand the mechanism (Problem), and identify Predisposing, Precipitating and Perpetuating risk factors will advance the field in better managing ICU-AW through implementation of Protective strategies and Proactive multimodal treatments.
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Affiliation(s)
- Jennifer R A Jones
- Physiotherapy Department, The University of Melbourne, Parkville, Victoria, Australia
- Physiotherapy Department, Division of Allied Health, Austin Health, Heidelberg, Victoria Australia
| | - David M Griffith
- Anaesthesia, Critical Care and Pain, Division of Health Sciences, The University of Edinburgh, Edinburgh, UK
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Weinel LM, Summers MJ, Chapple LA. Ultrasonography to measure quadriceps muscle in critically ill patients: A literature review of reported methodologies. Anaesth Intensive Care 2019; 47:423-434. [DOI: 10.1177/0310057x19875152] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Muscle wasting in the intensive care unit (ICU) is common and may impair functional recovery. Ultrasonography (US) presents a modern solution to quantify skeletal muscle size and monitor muscle wasting. However, no standardised methodology for the conduct of ultrasound-derived quadriceps muscle layer thickness or cross-sectional area in this population exists. The aim of this study was to compare methodologies reported for the measurement of quadriceps muscle layer thickness (MLT) and cross-sectional area (CSA) using US in critically ill patients. Databases PubMed, Ovid, Embase, and CINAHL were searched for original research publications that reported US-derived quadriceps MLT and/or CSA conducted in critically ill adult patients. Data were extracted from eligible studies on parameters relating to US measurement including anatomical location, patient positioning, operator technique and image analysis. It was identified that there was a clear lack of reported detail and substantial differences in the reported methodology used for all parameters. A standardised protocol and minimum reporting standards for US-derived measurement of quadriceps muscle size in ICU is required to allow for consistent measurement techniques and hence interpretation of results.
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Affiliation(s)
- Luke M Weinel
- Department of Critical Care Services, Royal Adelaide Hospital, Adelaide, Australia
- Discipline of Acute Care Medicine, University of Adelaide, Adelaide, Australia
| | - Matthew J Summers
- Department of Critical Care Services, Royal Adelaide Hospital, Adelaide, Australia
- Discipline of Acute Care Medicine, University of Adelaide, Adelaide, Australia
| | - Lee-Anne Chapple
- Department of Critical Care Services, Royal Adelaide Hospital, Adelaide, Australia
- Discipline of Acute Care Medicine, University of Adelaide, Adelaide, Australia
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17
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Differential contractile response of critically ill patients to neuromuscular electrical stimulation. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2019; 23:308. [PMID: 31506074 PMCID: PMC6737711 DOI: 10.1186/s13054-019-2540-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 07/15/2019] [Indexed: 12/22/2022]
Abstract
Background Neuromuscular electrical stimulation (NMES) has been investigated as a preventative measure for intensive care unit-acquired weakness. Trial results remain contradictory and therefore inconclusive. As it has been shown that NMES does not necessarily lead to a contractile response, our aim was to characterise the response of critically ill patients to NMES and investigate potential outcome benefits of an adequate contractile response. Methods This is a sub-analysis of a randomised controlled trial investigating early muscle activating measures together with protocol-based physiotherapy in patients with a SOFA score ≥ 9 within the first 72 h after admission. Included patients received protocol-based physiotherapy twice daily for 20 min and NMES once daily for 20 min, bilaterally on eight muscle groups. Electrical current was increased up to 70 mA or until a contraction was detected visually or on palpation. Muscle strength was measured by a blinded assessor at the first adequate awakening and ICU discharge. Results One thousand eight hundred twenty-four neuromuscular electrical stimulations in 21 patients starting on day 3.0 (2.0/6.0) after ICU admission were included in this sub-analysis. Contractile response decreased from 64.4% on day 1 to 25.0% on day 7 with a significantly lower response rate in the lower extremities and proximal muscle groups. The electrical current required to elicit a contraction did not change over time (day 1, 50.2 [31.3/58.8] mA; day 7, 45.3 [38.0/57.5] mA). The electrical current necessary for a contractile response was higher in the lower extremities. At the first awakening, patients presented with significant weakness (3.2 [2.5/3.8] MRC score). When dividing the cohort into responders and non-responders (> 50% vs. ≤ 50% contractile response), we observed a significantly higher SOFA score in non-responders. The electrical current necessary for a muscle contraction in responders was significantly lower (38.0 [32.8/42.9] vs. 54.7 [51.3/56.0] mA, p < 0.001). Muscle strength showed higher values in the upper extremities of responders at ICU discharge (4.4 [4.1/4.6] vs. 3.3 [2.8/3.8] MRC score, p = 0.036). Conclusion Patients show a differential contractile response to NMES, which appears to be dependent on the severity of illness and also relevant for potential outcome benefits. Trial registration ISRCTN ISRCTN19392591, registered 17 February 2011 Electronic supplementary material The online version of this article (10.1186/s13054-019-2540-4) contains supplementary material, which is available to authorized users.
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Carámbula A, Visca A, D’Amico S, Angulo M. Respiratory and Peripheral Muscle Assessment in the Intensive Care Unit. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.arbr.2019.03.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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19
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Bear DE, Langan A, Dimidi E, Wandrag L, Harridge SDR, Hart N, Connolly B, Whelan K. β-Hydroxy-β-methylbutyrate and its impact on skeletal muscle mass and physical function in clinical practice: a systematic review and meta-analysis. Am J Clin Nutr 2019; 109:1119-1132. [PMID: 30982854 DOI: 10.1093/ajcn/nqy373] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 12/07/2018] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Loss of skeletal muscle mass and muscle weakness are common in a variety of clinical conditions with both wasting and weakness associated with an impairment of physical function. β-Hydroxy-β-methylbutyrate (HMB) is a nutrition supplement that has been shown to favorably influence muscle protein turnover and thus potentially plays a role in ameliorating skeletal muscle wasting and weakness. OBJECTIVES The aim of this study was to investigate the efficacy of HMB alone, or supplements containing HMB, on skeletal muscle mass and physical function in a variety of clinical conditions characterized by loss of skeletal muscle mass and weakness. METHODS A systematic review and meta-analysis of randomized controlled trials reporting outcomes of muscle mass, strength, and physical function was performed. Two reviewers independently performed screening, data extraction, and risk-of-bias assessment. Outcome data were synthesized through meta-analysis with the use of a random-effects model and data presented as standardized mean differences (SMDs). RESULTS Fifteen randomized controlled trials were included, involving 2137 patients. Meta-analysis revealed some evidence to support the effect of HMB alone, or supplements containing HMB, on increasing skeletal muscle mass (SMD = 0.25; 95% CI: -0.00, 0.50; z = 1.93; P = 0.05; I2 = 58%) and strong evidence to support improving muscle strength (SMD = 0.31; 95% CI: 0.12, 0.50; z = 3.25; P = 0.001; I2 = 0%). Effect sizes were small. No effect on bodyweight (SMD = 0.16; 95% CI: -0.08, 0.41; z = 1.34; P = 0.18; I2 = 67%) or any other outcome was found. No study was considered to have low risk of bias in all categories. CONCLUSION HMB, and supplements containing HMB, increased muscle mass and strength in a variety of clinical conditions, although the effect size was small. Given the bias associated with many of the included studies, further high-quality studies should be undertaken to enable interpretation and translation into clinical practice. The trial was registered on PROSPERO as CRD42017058517.
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Affiliation(s)
- Danielle E Bear
- Departments of 1Nutrition and Dietetics.,Critical Care.,National Institute for Health Research Biomedical Research Centre.,Lane Fox Clinical Respiratory Physiology Research Centre.,Centre for Human and Applied Physiological Sciences
| | - Anne Langan
- Departments of 1Nutrition and Dietetics.,Critical Care
| | - Eirini Dimidi
- Department of Nutritional Sciences, School of Life Course Sciences, King's College London, London, UK
| | - Liesl Wandrag
- Departments of 1Nutrition and Dietetics.,Critical Care
| | | | - Nicholas Hart
- National Institute for Health Research Biomedical Research Centre.,Lane Fox Clinical Respiratory Physiology Research Centre.,Lane Fox Respiratory Service, Guy's and St Thomas' NHS Foundation Trust, London, UK.,Centre for Human and Applied Physiological Sciences
| | - Bronwen Connolly
- National Institute for Health Research Biomedical Research Centre.,Lane Fox Clinical Respiratory Physiology Research Centre.,Centre for Human and Applied Physiological Sciences
| | - Kevin Whelan
- Department of Nutritional Sciences, School of Life Course Sciences, King's College London, London, UK
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Sundström-Rehal M, Tardif N, Rooyackers O. Can exercise and nutrition stimulate muscle protein gain in the ICU patient? Curr Opin Clin Nutr Metab Care 2019; 22:146-151. [PMID: 30585804 DOI: 10.1097/mco.0000000000000548] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE OF REVIEW The intended purpose of nutritional and exercise interventions during ICU stay is often to limit the muscle loss associated with critical illness. Unfortunately, direct measurements of muscle protein turnover or potential surrogates have often been neglected in clinical trials. RECENT FINDINGS We discuss the potential advantages and drawbacks of common outcome measures for assessing changes in muscle structure and function over time, and how temporal changes in patient physiology require consideration. There is an increasing awareness of emphasizing functional outcomes in recent clinical trials. We here summarize the latest research on therapies attempting to limit muscle loss in ICU patients, with a focus on muscle protein metabolism. No recent or older studies show any effect of nutritional interventions on muscle protein gain, although some smaller studies show a promising positive effect on muscle thickness and function. Some studies show a positive effect of increased physical activity in the ICU on muscle mass and function but heterogeneity of the interventions and outcome measures make any general conclusions impossible. SUMMARY Several knowledge gaps remain regarding the importance of muscle protein regulation as a driver of improved physical function following ICU discharge. In our opinion, physiological investigations are needed to guide the design and interpretation of future clinical trials.
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Affiliation(s)
- Martin Sundström-Rehal
- Department of Perioperative Medicine and Intensive Care, Karolinska University Hospital
- Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Nicolas Tardif
- Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Olav Rooyackers
- Department of Perioperative Medicine and Intensive Care, Karolinska University Hospital
- Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
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Carámbula A, Visca A, D'Amico S, Angulo M. Respiratory and Peripheral Muscle Assessment in the Intensive Care Unit. Arch Bronconeumol 2018; 55:258-265. [PMID: 30454870 DOI: 10.1016/j.arbres.2018.09.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 09/17/2018] [Accepted: 09/20/2018] [Indexed: 02/07/2023]
Abstract
Atrophy and weakness of the respiratory and peripheral muscles is a common problem in the intensive care unit (ICU). It is difficult to diagnose, particularly in the early stages of critical disease. Consequently, many cases are detected only in advanced stages, for example, when difficulties in mechanical ventilation weaning are encountered. The aim of this review is to describe the main tools that are currently available for evaluation of peripheral and respiratory muscles in the ICU. Techniques of varying complexity and specificity are discussed, and particular emphasis is placed on those with greater relevance in daily clinical practice, such as ultrasound.
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Affiliation(s)
- Agustín Carámbula
- Centro de Tratamiento Intensivo, Hospital Maciel, Montevideo, Uruguay
| | - Antonella Visca
- Centro de Tratamiento Intensivo, Hospital Maciel, Montevideo, Uruguay
| | - Silvana D'Amico
- Centro de Tratamiento Intensivo, Hospital Maciel, Montevideo, Uruguay
| | - Martín Angulo
- Centro de Tratamiento Intensivo, Hospital Maciel, Montevideo, Uruguay; Cátedra de Medicina Intensiva, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay; Departamento de Fisiopatología, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay.
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Bear DE, Griffith D, Puthucheary ZA. Emerging outcome measures for nutrition trials in the critically ill. Curr Opin Clin Nutr Metab Care 2018; 21:417-422. [PMID: 30148741 DOI: 10.1097/mco.0000000000000507] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW Mortality has long been the gold-standard outcome measure for intensive care clinical trials. However, as the critical care community begins to understand and accept that survivorship is associated with functional disability and a health and socioeconomic burden, the clinical and research focus has begun to shift towards long-term physical function RECENT FINDINGS: To use mortality as a primary outcome measure, one would either have to choose an improbable effect (e.g. a difference of 5-10% in mortality as a result of a single intervention) or recruit a larger number of patients, the latter being unfeasible for most critical care trials.Outcome measures will need to match interventions. As an example, amino acids, or intermittent feeding, can stimulate muscle protein synthesis, and so prevention of muscle wasting may seem an appropriate outcome measure when assessing the effectiveness of these interventions. Testing the effectiveness of these interventions requires the development of novel outcome measures that are targeted and acceptable to patients. We describe advancements in dual-energy X-ray absorptiometry scanning, bio-impedence analysis, MRI and muscle ultrasound in this patient group that are beginning to address this development need. SUMMARY New approaches to outcome assessment are beginning to appear in post-ICU research, which promise to improve our understanding of nutrition and exercise interventions on skeletal muscle structure, composition and function, without causing undue suffering to the patient.
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Affiliation(s)
- Danielle E Bear
- Department of Nutrition and Dietetics
- Department of Critical Care
- Lane Fox Clinical Respiratory Research Unit, Guy's and St Thomas' NHS Foundation Trust
- Centre for Human and Applied Physiological Sciences, King's College London
| | - David Griffith
- Anaesthesia, Critical Care and Pain Medicine, The University of Edinburgh, Edinburgh
| | - Zudin A Puthucheary
- Centre for Human and Applied Physiological Sciences, King's College London
- Centre for Human Health and Performance, Department of Medicine, University College London
- Adult Intensive Care Unit, Royal Free Hospital NHS Foundation Trust London, London, UK
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