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Fang L, Cheng A, Zhu Z, Shao M, Wang G. Effect of Inspiratory Muscle Training on Outcomes After Cardiac Surgery: A Comprehensive Meta-Analysis of Randomized Controlled Trials. J Cardiopulm Rehabil Prev 2024; 44:324-332. [PMID: 39185909 DOI: 10.1097/hcr.0000000000000890] [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: 08/27/2024]
Abstract
PURPOSE Inspiratory muscle training (IMT) has emerged as a potential intervention to improve respiratory outcomes for patients undergoing cardiac surgery. However, the extent of the IMT effects on preoperative and postoperative respiratory metrics remains uncertain. Hence, we designed this study to determine the effects of IMT on various outcomes of patients undergoing cardiac surgery. METHODS We conducted a comprehensive meta-analysis of studies evaluating the impact of preoperative and postoperative IMT on various respiratory variables and postsurgical outcomes. We synthesized data from multiple studies, encompassing diverse patient populations and IMT protocols. The key outcomes included the maximal inspiratory pressure (MIP), forced expiratory volume in 1 sec (FEV1), forced vital capacity (FVC), and others. RESULTS Our meta-analysis results showed that preoperative IMT significantly improved the MIP values with a pooled standard mean difference (SMD) of 0.62. The hospital stay length was also reduced with a SMD of - 0.4. Other variables such as FEV1 and FVC also improved significantly. Postoperative IMT improved the MIP and peak flow rate values, but the evidence was less robust than with preoperative interventions. We observed high heterogeneity across studies for several outcomes and found evidence of publication bias for some postoperative measures. CONCLUSION Both preoperative and postoperative IMT offer benefits for patients undergoing operations, especially by enhancing respiratory muscle strength and potentially reducing hospital stays. However, the presence of heterogeneity and publication bias underscores the need for further standardized research to consolidate these findings and standardize IMT protocols for optimal patient outcomes.
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Affiliation(s)
- Linqi Fang
- Author Affiliations: Cardiorpulmonary Rehabilitation Ward, Zhejiang Rehabilitation Medical Center (The Affiliated Rehabilitation Hospital of Zhejiang Chinese Medical University), Hangzhou, Zhejiang Province, China; and Rehabilitation Medicine Department 2, The Third Affiliated Hospital of Zhejiang University of Traditional Chinese Medicine, Hangzhou, Zhejiang Province, China
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Kourek C, Kanellopoulos M, Raidou V, Antonopoulos M, Karatzanos E, Patsaki I, Dimopoulos S. Safety and effectiveness of neuromuscular electrical stimulation in cardiac surgery: A systematic review. World J Cardiol 2024; 16:27-39. [PMID: 38313389 PMCID: PMC10835467 DOI: 10.4330/wjc.v16.i1.27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 12/14/2023] [Accepted: 01/03/2024] [Indexed: 01/19/2024] Open
Abstract
BACKGROUND Lack of mobilization and prolonged stay in the intensive care unit (ICU) are major factors resulting in the development of ICU-acquired muscle weakness (ICUAW). ICUAW is a type of skeletal muscle dysfunction and a common complication of patients after cardiac surgery, and may be a risk factor for prolonged duration of mechanical ventilation, associated with a higher risk of readmission and higher mortality. Early mobilization in the ICU after cardiac surgery has been found to be low with a significant trend to increase over ICU stay and is also associated with a reduced duration of mechanical ventilation and ICU length of stay. Neuromuscular electrical stimulation (NMES) is an alternative modality of exercise in patients with muscle weakness. A major advantage of NMES is that it can be applied even in sedated patients in the ICU, a fact that might enhance early mobilization in these patients. AIM To evaluate safety, feasibility and effectiveness of NMES on functional capacity and muscle strength in patients before and after cardiac surgery. METHODS We performed a search on Pubmed, Physiotherapy Evidence Database (PEDro), Embase and CINAHL databases, selecting papers published between December 2012 and April 2023 and identified published randomized controlled trials (RCTs) that included implementation of NMES in patients before after cardiac surgery. RCTs were assessed for methodological rigor and risk of bias via the PEDro. The primary outcomes were safety and functional capacity and the secondary outcomes were muscle strength and function. RESULTS Ten studies were included in our systematic review, resulting in 703 participants. Almost half of them performed NMES and the other half were included in the control group, treated with usual care. Nine studies investigated patients after cardiac surgery and 1 study before cardiac surgery. Functional capacity was assessed in 8 studies via 6MWT or other indices, and improved only in 1 study before and in 1 after cardiac surgery. Nine studies explored the effects of NMES on muscle strength and function and, most of them, found increase of muscle strength and improvement in muscle function after NMES. NMES was safe in all studies without any significant complication. CONCLUSION NMES is safe, feasible and has beneficial effects on muscle strength and function in patients after cardiac surgery, but has no significant effect on functional capacity.
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Affiliation(s)
- Christos Kourek
- Medical School of Athens, National and Kapodistrian University of Athens, Athens 15772, Greece
| | - Marios Kanellopoulos
- Clinical Ergospirometry, Exercise and Rehabilitation Laboratory, Evangelismos Hospital, Athens 10676, Greece
| | - Vasiliki Raidou
- Clinical Ergospirometry, Exercise and Rehabilitation Laboratory, Evangelismos Hospital, Athens 10676, Greece
| | | | - Eleftherios Karatzanos
- Clinical Ergospirometry, Exercise and Rehabilitation Laboratory, Evangelismos Hospital, Athens 10676, Greece
| | - Irini Patsaki
- Department of Physiotherapy, University of West Attica, Athens 12243, Greece
| | - Stavros Dimopoulos
- Clinical Ergospirometry, Exercise and Rehabilitation Laboratory, Evangelismos Hospital, Athens 10676, Greece
- Intensive Care Unit, Onassis Cardiac Surgery Center, Kallithea 17674, Greece.
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Snoke DB, Bellefleur E, Rehman HT, Carson JA, Poynter ME, Dittus KL, Toth MJ. Skeletal muscle adaptations in patients with lung cancer: Longitudinal observations from the whole body to cellular level. J Cachexia Sarcopenia Muscle 2023; 14:2579-2590. [PMID: 37727010 PMCID: PMC10751417 DOI: 10.1002/jcsm.13332] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 08/02/2023] [Accepted: 08/21/2023] [Indexed: 09/21/2023] Open
Abstract
BACKGROUND Cancer and its treatment can adversely affect skeletal muscle, impacting physical function, treatment response and survival. No studies, however, have comprehensively characterized these muscle adaptations longitudinally in human patients at the cellular level. METHODS We examined skeletal muscle size and function from the whole body to the sub-cellular level in 11 patients with non-small cell lung cancer (NSCLC; 6 male/5 female, mean age 58 ± 3 years) studied over a 2-month observation period starting during their first cycle of standard of care cancer treatment and in 11 age- and sex-matched healthy controls (HC) without a current or past history of cancer. Biopsies of the vastus lateralis were performed to assess muscle fibre size, contractility and mitochondrial content, along with assessments of physical function, whole muscle size and function, and circulating cytokines. RESULTS Body weight, composition and thigh muscle area and density were unaltered over time in patients with NSCLC, while muscle density was lower in patients with NSCLC versus HC (P = 0.03). Skeletal muscle fibre size decreased by 18% over time in patients (all P = 0.02) and was lower than HC (P = 0.02). Mitochondrial fractional area and density did not change over time in patients, but fractional area was lower in patients with NSCLC compared with HC (subsarcolemmal, P = 0.04; intermyofibrillar, P = 0.03). Patients with NSCLC had higher plasma concentrations of IL-6 (HC 1.40 ± 0.50; NSCLC 4.71 ± 4.22; P < 0.01), GDF-15 (HC 569 ± 166; NSCLC 2071 ± 1168; P < 0.01) and IL-8/CXCL8 (HC 4.9 ± 1.8; NSCLC 10.1 ± 6.0; P = 0.02) compared with HC, but there were no changes in inflammatory markers in patients with NSCLC over time. No changes were observed in markers of satellite cell activation or DNA damage in patients and no group differences were noted with HC. Whole-muscle strength was preserved over time in patients with NSCLC coincident with improved single fibre contractility. CONCLUSIONS This study is the first to comprehensively examine longitudinal alterations in skeletal muscle fibre size and function in patients with NSCLC and suggests that muscle fibre atrophy occurs during cancer treatment despite weight stability and no changes in conventional clinical measurements of whole body or thigh muscle size over this period.
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Affiliation(s)
- Deena B. Snoke
- Department of MedicineUniversity of Vermont Larner College of MedicineBurlingtonVermontUSA
| | - Emma Bellefleur
- Department of MedicineUniversity of Vermont Larner College of MedicineBurlingtonVermontUSA
| | - Hibba Tul Rehman
- Department of MedicineUniversity of Vermont Larner College of MedicineBurlingtonVermontUSA
- University of Vermont Cancer CenterUniversity of Vermont Larner College of MedicineBurlingtonVermontUSA
| | - James A. Carson
- Department of Physical TherapyThe University of Tennessee Health Science CenterMemphisTennesseeUSA
| | - Matthew E. Poynter
- Department of MedicineUniversity of Vermont Larner College of MedicineBurlingtonVermontUSA
| | - Kim L. Dittus
- Department of MedicineUniversity of Vermont Larner College of MedicineBurlingtonVermontUSA
- University of Vermont Cancer CenterUniversity of Vermont Larner College of MedicineBurlingtonVermontUSA
| | - Michael J. Toth
- Department of MedicineUniversity of Vermont Larner College of MedicineBurlingtonVermontUSA
- University of Vermont Cancer CenterUniversity of Vermont Larner College of MedicineBurlingtonVermontUSA
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Nakashima Y, Iwaki D, Kataoka Y, Ariie T, Taito S, Nishikawa Y, Mio N, Mikami Y. Efficacy of neuromuscular electrical stimulation for thoracic and abdominal surgery: A systematic review and meta-analysis. PLoS One 2023; 18:e0294965. [PMID: 38032886 PMCID: PMC10688715 DOI: 10.1371/journal.pone.0294965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 11/10/2023] [Indexed: 12/02/2023] Open
Abstract
This systematic review and meta-analysis examined the efficacy of neuromuscular electrical stimulation (NMES) on lower limb muscle strength and health-related quality of life (HR-QOL) after thoracic and abdominal surgery. We searched the Cochrane Central Register of Controlled Trials, MEDLINE via PubMed, Excerpta Medica Database via Elsevier, Physiotherapy Evidence Database, Cumulative Index to Nursing and Allied Health Literature, World Health Organization International Clinical Trials Registry Platform via their dedicated search portal, and ClinicalTrials.gov on November 2021 and updated in April 2023 to identify randomized controlled trials that examined the effects of NMES after thoracic and abdominal surgery. The primary outcomes were lower limb muscle strength, HR-QOL, and adverse events. We used the Cochrane Risk of Bias Tool and the Grading of Recommendations, Assessment, Development, and Evaluation approach to assess the certainty of evidence. A total of 18 randomized control trials involving 915 participants, including 10 on cardiovascular surgery, two on pulmonary surgery, five on digestive system surgery, and one on other surgery, were included. NMES slightly increased lower limb muscle strength and adverse events in cardiovascular surgery. Adverse events (hypotension, pain, and muscle discomfort) occurred in seven patients. HR-QOL was measured in two studies on cardiovascular surgery, but these were not pooled due to concept heterogeneity. Overall, NMES slightly increases lower limb muscle strength after cardiovascular surgery without serious adverse events. However, higher-quality randomized control trials in thoracic and abdominal surgeries are needed.
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Affiliation(s)
- Yuki Nakashima
- Division of Rehabilitation, Department of Clinical Practice and Support, Hiroshima University Hospital, Hiroshima, Japan
- Scientific Research WorkS Peer Support Group (SRWS-PSG), Osaka, Japan
| | - Daisuke Iwaki
- Division of Rehabilitation, Department of Clinical Practice and Support, Hiroshima University Hospital, Hiroshima, Japan
- Department of Neuromechanics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Yuki Kataoka
- Scientific Research WorkS Peer Support Group (SRWS-PSG), Osaka, Japan
- Department of Internal Medicine, Kyoto Min-iren Asukai Hospital, Kyoto, Japan
- Section of Clinical Epidemiology, Department of Community Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
- Department of Healthcare Epidemiology, Kyoto University Graduate School of Medicine / Public Health, Kyoto, Japan
| | - Takashi Ariie
- Scientific Research WorkS Peer Support Group (SRWS-PSG), Osaka, Japan
- Department of Physical Therapy, School of Health Sciences at Fukuoka, International University of Health and Welfare, Fukuoka, Japan
| | - Shunsuke Taito
- Division of Rehabilitation, Department of Clinical Practice and Support, Hiroshima University Hospital, Hiroshima, Japan
- Scientific Research WorkS Peer Support Group (SRWS-PSG), Osaka, Japan
| | - Yuichi Nishikawa
- Faculty of Frontier Engineering, Institute of Science & Engineering, Kanazawa University, Kanazawa, Japan
| | - Naoki Mio
- Division of Rehabilitation, Department of Clinical Practice and Support, Hiroshima University Hospital, Hiroshima, Japan
| | - Yukio Mikami
- Department of Rehabilitation Medicine, Hiroshima University Hospital, Hiroshima, Japan
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Rengo JL, Savage PD, Hirashima F, Leavitt BJ, Ades PA, Toth MJ. Assessment of the Early Disabling Effects of Coronary Artery Bypass Graft Surgery Using Direct Measures of Physical Function. J Cardiopulm Rehabil Prev 2022; 42:28-33. [PMID: 33797459 PMCID: PMC8464611 DOI: 10.1097/hcr.0000000000000587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
PURPOSE Coronary artery bypass graft (CABG) surgery is an important treatment option in patients with coronary artery disease. Despite its beneficial effects, CABG surgery and its subsequent hospitalization may reduce physical functional capacity in patients, contributing to physical disability. Our objective was to assess the early disabling effects of CABG surgery and its subsequent hospitalization using direct measurements of physical function. METHODS Patients (n = 44) were assessed pre-surgery and at hospital discharge for physical function using the Short Physical Performance Battery (SPPB) and self-reported physical and mental health by questionnaire. RESULTS The total SPPB score (P < .001) and all of its components (P < .01-.001) decreased markedly following CABG surgery and hospitalization, with greater reductions in total SPPB score (P < .05) and gait speed (P < .01) in patients with higher body mass index. While CABG surgery and hospitalization reduced patient-reported physical function, changes in these indices largely did not correlate with changes in SPPB outcomes. CONCLUSION Our results show the early disabling effects of CABG surgery and hospitalization on directly measured physical function, and that patients with higher body mass index had greater reductions. In addition, our results underscore the need to perform direct measurements of physical function to describe reductions in physiological functional capacity. These findings suggest the need for inpatient rehabilitation or early mobility programs to address this decline in physical function.
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Affiliation(s)
- Jason L. Rengo
- Division of Cardiology, Department of Medicine, College of Medicine, University of Vermont, Burlington, VT
| | - Patrick D. Savage
- Division of Cardiology, Department of Medicine, College of Medicine, University of Vermont, Burlington, VT
| | - Fuyuki Hirashima
- Division of Cardiothoracic Surgery, Department of Surgery, College of Medicine, University of Vermont, Burlington, VT
| | - Bruce J. Leavitt
- Division of Cardiothoracic Surgery, Department of Surgery, College of Medicine, University of Vermont, Burlington, VT
| | - Philip A. Ades
- Division of Cardiology, Department of Medicine, College of Medicine, University of Vermont, Burlington, VT
| | - Michael J. Toth
- Division of Cardiology, Department of Medicine, College of Medicine, University of Vermont, Burlington, VT
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Zhang X, Peng Y, Zhong F, Li S, Huang X, Huang Q, Chen L, Lin Y. Effects of neuromuscular electrical stimulation on functional capacity and quality of life among patients after cardiac surgery: A systematic review and meta-analysis. J Cardiol 2021; 79:291-298. [PMID: 34657773 DOI: 10.1016/j.jjcc.2021.09.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 08/03/2021] [Accepted: 09/09/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Neuromuscular electrical stimulation (NMES) is a possible adjunctive therapy applied to cardiac surgery patients to improve physical function, but the results are still controversial. A systematic review and meta-analysis was conducted to investigate the effects of NMES on functional capacity and quality of life (QoL) in cardiac surgery patients. METHODS The following databases PubMed, Embase, Medicine, CINAHL, and the Cochrane Central Register of Controlled Trials were searched for the English language from inception up to March 2021. A systematic targeted literature search evaluating the effects of NMES on physical function and QoL in cardiac surgery patients. The effect size of NMES was presented as the mean difference (MD)/standardized mean difference (SMD) and its 95% confidence interval using fixed/random effect models according to heterogeneity. Two reviewers independently screened and appraised each study by using the Cochrane Risk of Bias Tool. RESULTS Six studies were included involving 400 cardiac surgery patients. The meta-analysis showed that NMES had effect on knee extensor strength (SMD=1.68; p=0.05), but had no effects on 6-minute walking distance (MD=44.08; p=0.22), walking speed (MD=0.05; p=0.24), grip strength (MD=3.01; p=0.39), or QoL (SMD=0.53; p=0.19). CONCLUSIONS NMES use in cardiac surgery patients is limited by low to moderate quality. Existing evidence shows that NMES is safe and effective for improving knee extensor strength.
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Affiliation(s)
- Xu Zhang
- School of Nursing, Fujian Medical University, Fuzhou, China
| | - Yanchun Peng
- Department of Cardiac Surgery, Fujian Medical University Union Hospital, Fuzhou, China
| | - Fuxiu Zhong
- Department of Nursing, Fujian Medical University Union Hospital, Fuzhou, China
| | - Sailan Li
- Department of Cardiac Surgery, Fujian Medical University Union Hospital, Fuzhou, China
| | - Xizhen Huang
- Department of Cardiac Surgery, Fujian Medical University Union Hospital, Fuzhou, China
| | - Qubo Huang
- Department of Cardiac Surgery, Fujian Medical University Union Hospital, Fuzhou, China
| | - Liangwan Chen
- Department of Cardiac Surgery, Fujian Medical University Union Hospital, Fuzhou, China; Fujian Heart Medicine Research Center, Fuzhou, China.
| | - Yanjuan Lin
- Department of Nursing, Fujian Medical University Union Hospital, Fuzhou, China; Fujian Heart Medicine Research Center, Fuzhou, China.
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