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Wang Q, Shi P, Cao L, Li H, Chen X, Wang P, Zhang J. Unveiling the detrimental vicious cycle linking skeletal muscle and COVID-19: A systematic review and meta-analysis. J Evid Based Med 2024. [PMID: 38975690 DOI: 10.1111/jebm.12629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 06/18/2024] [Indexed: 07/09/2024]
Abstract
OBJECTIVE Skeletal muscle catabolism supports multiple organs and systems during severe trauma and infection, but its role in COVID-19 remains unclear. This study investigates the interactions between skeletal muscle and COVID-19. METHODS The PubMed, EMbase, and The Cochrane Library databases were systematically searched from January 2020 to August 2023 for cohort studies focusing on the impact of skeletal muscle on COVID-19 prevalence and outcomes, and longitudinal studies examining skeletal muscle changes caused by COVID-19. Skeletal muscle quantity (SMQN) and quality (SMQL) were assessed separately. The random-effect model was predominantly utilized for statistical analysis. RESULTS Seventy studies with moderate to high quality were included. Low SMQN/SMQL was associated with an increased risk of COVID-19 infection (OR = 1.62, p < 0.001). Both the low SMQN and SMQL predicted COVID-19-related mortality (OR = 1.53, p = 0.016; OR = 2.18, p = 0.001, respectively). Mortality risk decreased with increasing SMQN (OR = 0.979, p = 0.009) and SMQL (OR = 0.972, p = 0.034). Low SMQN and SMQL were also linked to the need for intensive care unit/mechanical ventilation, increased COVID-19 severity, and longer hospital stays. Significant skeletal muscle wasting, characterized by reduced volume and strength, was observed during COVID-19 infection and the pandemic. CONCLUSIONS This study reveals a detrimental vicious circle between skeletal muscle and COVID-19. Effective management of skeletal muscle could be beneficial for treating COVID-19 infections and addressing the broader pandemic. These findings have important implications for the management of future virus pandemics. SYSTEMATIC REVIEW REGISTRATION PROSPERO CRD42023395476.
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Affiliation(s)
- Qin Wang
- Department of Pediatrics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Peipei Shi
- Department of Pediatrics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Lu Cao
- Department of Pediatrics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Haoran Li
- Department of Thoracic Surgery, Thoracic Oncology Institute, Peking University People's Hospital, Beijing, China
| | - Xiankai Chen
- Department of Thoracic Surgical Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Peiyu Wang
- Department of Pediatrics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
- Department of Thoracic Surgery, Thoracic Oncology Institute, Peking University People's Hospital, Beijing, China
| | - Jianjiang Zhang
- Department of Pediatrics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
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Mejía Alonso LA, Espinosa-Poblano E, de Regil López S, Lemus Eslava V, Serrano Sánchez JG, Paredes-Manjarrez C, Balderas-Chairéz AT, Anda-Garay JC, Miguel-Puga JA, Jáuregui-Renaud K. Malnutrition contribution to the functional status and health related quality of life after COVID-19, a correlational follow-up study. Sci Rep 2024; 14:15005. [PMID: 38951534 PMCID: PMC11217498 DOI: 10.1038/s41598-024-65698-7] [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: 02/21/2024] [Accepted: 06/24/2024] [Indexed: 07/03/2024] Open
Abstract
To assess malnutrition contribution to the functional status and health related quality of life after hospitalization due to COVID-19 pneumonia, 66 selected adults referred for physical rehabilitation accepted to participate in the study; none of them required oxygen supply or had history of lung/musculoskeletal/neurological/immune/rheumatic disease or trauma, or contraindication for respiratory-function tests. At three evaluations, with 3 months in-between, assessments included: self-report of functional status, the St. George's Respiratory Questionnaire, spirometry, the 6-min-walk-test, the MRC-scale, the 30-s sit-to-stand-test, the timed-up-and-go-test, nutritional status, and ultrasound imaging (vastus medialis and diaphragm). At referral, patients had nutritional deficits with protein deficiency, which gradually improved; while muscle thickness (of both vastus medialis and diaphragm) increased, along with muscle strength and mobility (ANOVA, p < 0.05). Contrarywise, the distance covered during the 6-min-walk-test decreased (ANOVA, p < 0.05), with a negative influence from excess body mass. During rehabilitation, health-related quality of life and functional status improved, with negative influence from a history of tobacco use and referral delay, respectively. After hospitalization due to COVID-19, early diagnosis of both protein deficiency and decrease of skeletal muscle thickness could be relevant for rehabilitation, while pondering the negative impact of excess body mass on submaximal exercise performance.
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Affiliation(s)
- Laura Alejandra Mejía Alonso
- Unidad de Rehabilitación, Hospital de Especialidades del Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico city, Mexico
| | - Eliseo Espinosa-Poblano
- Departamento de Inhaloterapia y Neumología, Hospital de Especialidades del Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico city, México
| | - Sarahi de Regil López
- Departamento de Nutrición y Dieta, Hospital de Especialidades del Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico city, México
| | - Verónica Lemus Eslava
- Departamento de Nutrición y Dieta, Hospital de Especialidades del Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico city, México
| | - Jesús Guadalupe Serrano Sánchez
- Departamento de Nutrición y Dieta, Hospital de Especialidades del Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico city, México
| | - Carlos Paredes-Manjarrez
- Departamento de Imagenología, Hospital de Especialidades del Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico city, México
| | - Andrés Tlacaelel Balderas-Chairéz
- Departamento de Imagenología, Hospital de Especialidades del Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico city, México
| | - Juan Carlos Anda-Garay
- Departamento de Medicina Interna, Hospital de Especialidades del Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico city, México
| | - José Adán Miguel-Puga
- Unidad de Investigación Médica en Otoneurología, Instituto Mexicano del Seguro Social, Mexico city, México
| | - Kathrine Jáuregui-Renaud
- Unidad de Investigación Médica en Otoneurología, Instituto Mexicano del Seguro Social, Mexico city, México.
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das Virgens IPA, Sousa IM, Bezerra ADL, Fayh APT. Assessment of body composition in adults hospitalized with acute COVID-19: a scoping review. Front Nutr 2023; 10:1176441. [PMID: 37743922 PMCID: PMC10513420 DOI: 10.3389/fnut.2023.1176441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 07/07/2023] [Indexed: 09/26/2023] Open
Abstract
Introduction Body composition (BC) assessment can supply accurate information for in-hospital nutritional evaluation. The aim of this study was to explore in the literature how the studies assessed BC, for what purpose, and investigate the role of BC findings in COVID-19 hospitalized patients' outcomes. Methods A scoping review was conducted according to the methodology available on the Joanna Briggs Institute website. We used the PCC acronym for the systematic search (population: adults with COVID-19, concept: assessment of BC, context: hospital setting) and performed it on PubMed, Scopus, and the Web of Science on 16 September 2022. Eligibility criteria consisted of the utilization of BC assessment tools in COVID-19 patients. Studies in which BC was solely measured with anthropometry (perimeters and skinfolds) were excluded. No language restriction was applied. Results Fifty-five studies were eligible for the review. Out of the 55 studies, 36 used computed tomography (CT), 13 used bioelectrical impedance (BIA), and 6 used ultrasound (US). No studies with D3-creatinine, 24 h urine excretion, dual-energy X-ray absorptiometry, or magnetic resonance were retrieved. BC was mainly assessed to test associations with adverse outcomes such as disease severity and mortality. Discussion Studies assessing BC in hospitalized patients with COVID-19 used mainly CT and BIA and associated the parameters with severity and mortality. There is little evidence of BC being assessed by other methods, as well as studies on BC changes during hospitalization.
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Affiliation(s)
- Isabel Pinto Amorim das Virgens
- Graduation Program in Health Sciences, Health Sciences Center, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
- Center for Translational Medicine, Semmelweis University, Budapest, Hungary
| | - Iasmin Matias Sousa
- Graduation Program in Health Sciences, Health Sciences Center, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Agnes Denise Lima Bezerra
- Graduation Program in Health Sciences, Health Sciences Center, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Ana Paula Trussardi Fayh
- Graduation Program in Health Sciences, Health Sciences Center, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
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Emekli E, Bostancı Can EZ. Prognostic Value of Diaphragm Diameter, Muscle Volume, and Bone Mineral Density in Critically Ill COVID-19 Patients. J Intensive Care Med 2023; 38:847-855. [PMID: 37050868 PMCID: PMC10099913 DOI: 10.1177/08850666231169494] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 03/22/2023] [Accepted: 03/28/2023] [Indexed: 04/14/2023]
Abstract
Objective: We aimed to analyze the prognostic value of muscle volume (MV), bone mineral density (BMD), and diaphragm diameter (DD) in COVID-19. Method: The study included 498 patients admitted to the intensive care unit (ICU) with a positive polymerase chain reaction test for COVID-19 from March 11, 2020, through August 31, 2022. The patients' laboratory and demographic data of the patients at the time of ICU admission were recorded. MV, DD, and BMD measurements were performed using computed tomography examinations. Muscle index (MI) was calculated as MV/height2. Quartiles were determined for all 4 measurements. Patients in the lowest quartile were recorded as having low MV, MI, DD, and BMD values. The parameters were evaluated for the whole group and compared according to gender and mortality. The multiple regression analysis was performed for the prediction of mortality. Results: In the mortality group, the male and female patients had significantly statistically lower values in MV (P < .001 and P = .002, respectively), MI (P < .001 and P = .005, respectively), DD (P < .001 and P < .001, respectively), and BMD (P = .002 and P < .001, respectively). In the multiple regression analysis, low MI (OR: 2.03, 95% CI: 1.14-3.61, P = .016) and DD (OR: 10.47, 95% CI: 5.59-19.59, P < .001) values remained significant for the prediction of mortality. Conclusion: BMD is a risk factor for mortality in patients with severe COVID-19, but cannot be used as an independent predictor. However, MI and DD can be used as independent predictors of mortality even in severe cases.
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Affiliation(s)
- Emre Emekli
- Department of Radiology, Etimesgut
Şehit Sait Ertürk State Hospital, Ankara, Turkey
| | - Emine Zülal Bostancı Can
- Department of Anesthesiology and
Reanimation, Etimesgut Şehit Sait Ertürk State Hospital, Ankara, Turkey
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Montes-Ibarra M, Orsso CE, Limon-Miro AT, Gonzalez MC, Marzetti E, Landi F, Heymsfield SB, Barazonni R, Prado CM. Prevalence and clinical implications of abnormal body composition phenotypes in patients with COVID-19: a systematic review. Am J Clin Nutr 2023:S0002-9165(23)46332-0. [PMID: 37037395 PMCID: PMC10082471 DOI: 10.1016/j.ajcnut.2023.04.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 03/01/2023] [Accepted: 04/03/2023] [Indexed: 04/12/2023] Open
Abstract
BACKGROUND The impact of body composition (BC) abnormalities on coronavirus disease 2019 (COVID-19) outcomes remains to be determined. OBJECTIVE We summarized the evidence on BC abnormalities and their relationship with adverse clinical outcomes in patients with COVID-19. METHODS A systematic search was conducted up until September 26, 2022 for observational studies using BC techniques to quantify skeletal muscle mass (or related compartments), muscle radiodensity or echo intensity, adipose tissue (AT, or related compartments), and phase angle (PhA) in adults with COVID-19. Methodological quality of studies was assessed using the Newcastle-Ottawa Scale. A synthesis without meta-analysis was conducted to summarize the prevalence of BC abnormalities and their significant associations with clinical outcomes. RESULTS We included 62 studies (69.4% low risk of bias) with 12 to 1,138 participants, except three with up to 490,301 participants. Using computed tomography and different cut-offs, prevalence ranged approximately from 22-90% for low muscle mass, 12-85% for low muscle radiodensity, 16-70% for high visceral AT. Using bioelectrical impedance analysis (BIA), prevalence of high fat mass was 51% and low PhA was 22-88%. Mortality was inversely related to PhA (3/4 studies) and positively related to intramuscular AT (4/5 studies), muscle echo intensity (2/2 studies), and BIA-estimated fat mass (2/2 studies). Intensive care unit admission was positively related to visceral AT (6/7 studies) and total AT (2/3 studies). Disease severity and hospitalization outcomes were positively related to intramuscular AT (2/2 studies). Inconsistent associations were found for the rest of BC measures and hospitalization outcomes. CONCLUSIONS Abnormalities in BC were prevalent in patients with COVID-19. Although conflicting associations were observed among certain BC abnormalities and clinical outcomes, higher muscle echo intensity (reflective of myosteatosis) and lower PhA were more consistently associated with greater mortality risk. Likewise, high IMAT and VAT were associated with mortality and ICU admission, respectively.
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Affiliation(s)
- Montserrat Montes-Ibarra
- Human Nutrition Research Unit, Department of Agricultural, Food, & Nutritional Science, University of Alberta, Edmonton, Alberta, Canada. (MMI, CEO, ATLM and CMP)
| | - Camila E Orsso
- Human Nutrition Research Unit, Department of Agricultural, Food, & Nutritional Science, University of Alberta, Edmonton, Alberta, Canada. (MMI, CEO, ATLM and CMP)
| | - Ana Teresa Limon-Miro
- Human Nutrition Research Unit, Department of Agricultural, Food, & Nutritional Science, University of Alberta, Edmonton, Alberta, Canada. (MMI, CEO, ATLM and CMP); Department of Medicine, University of Alberta, Edmonton, Alberta, Canada. (ATLM)
| | - Maria Cristina Gonzalez
- Postgraduate Program in Health and Behavior, Catholic University of Pelotas, Pelotas, Rio Grande do Sul, Brazil. (MCG)
| | - Emanuele Marzetti
- Department of Geriatrics and Orthopedics, Università Cattolica del Sacro Cuore, Rome, Italy. (EM and FL); Fondazione Policlinico A. Gemelli IRCCS, Rome, Italy. (EM and FL)
| | - Francesco Landi
- Department of Geriatrics and Orthopedics, Università Cattolica del Sacro Cuore, Rome, Italy. (EM and FL); Fondazione Policlinico A. Gemelli IRCCS, Rome, Italy. (EM and FL)
| | - Steven B Heymsfield
- Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, Louisiana, United States. (SBH)
| | - Rocco Barazonni
- Department of Medical, Surgical and Health Sciences, University of Trieste, Italy; Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI), Cattinara Hospital, Trieste, Italy. (RB)
| | - Carla M Prado
- Human Nutrition Research Unit, Department of Agricultural, Food, & Nutritional Science, University of Alberta, Edmonton, Alberta, Canada. (MMI, CEO, ATLM and CMP).
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Jang DH, Park SM, Lee DK, Kim DW, Im CW, Jo YH, Lee KJ. Lower limb muscle matters in patients with hypoxic brain injury following out-of-hospital cardiac arrest. Acute Crit Care 2023; 38:104-112. [PMID: 36935539 PMCID: PMC10030248 DOI: 10.4266/acc.2022.01389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 01/18/2023] [Indexed: 03/03/2023] Open
Abstract
BACKGROUND There are conflicting results regarding the association between body mass index and the prognosis of cardiac arrest patients. We investigated the association of the composition and distribution of muscle and fat with neurologic outcomes at hospital discharge in successfully resuscitated out-of-hospital cardiac arrest (OHCA) patients. METHODS This prospective, single-centre, observational study involved adult OHCA patients, conducted between April 2019 and June 2021. The ratio of total skeletal muscle, upper limb muscle, lower limb muscle, and total fat to body weight was measured using InBody S10, a bioimpedance analyser, after achieving the return of spontaneous circulation. Restricted cubic spline curves with four knots were used to examine the relationship between total skeletal muscle, upper limb muscle, and lower limb muscle relative to total body weight and neurologic outcome at discharge. Multivariable logistic regression analysis was performed to assess an independent association. RESULTS A total of 66 patients were enrolled in the study. The proportion of total muscle and lower limb muscle positively correlated with the possibility of having a good neurologic outcome. The proportion of lower limb muscle showed an independent association in the multivariable analysis (adjusted odds ratio, 2.29; 95% confidence interval, 1.06-13.98), and its optimal cut-off value calculated through receiver operating characteristic curve analysis was 23.1%, which can predict a good neurological outcome. CONCLUSIONS A higher proportion of lower limb muscle to body weight was independently associated with the probability of having a good neurologic outcome in OHCA patients.
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Affiliation(s)
- Dong-Hyun Jang
- Department of Public Healthcare Service, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Seung Min Park
- Department of Emergency Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Emergency Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Dong Keon Lee
- Department of Emergency Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Emergency Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Dong Won Kim
- Department of Emergency Medicine, Chuncheon Sacred Heart Hospital, Hallym University College of Medicine, Chuncheon, Korea
| | - Chang Woo Im
- Department of Emergency Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Emergency Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - You Hwan Jo
- Department of Emergency Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Emergency Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Kui Ja Lee
- Department of Emergency Medical Services, Kyungdong University, Wonju, Korea
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Wang Y, Tan S, Yan Q, Gao Y. Sarcopenia and COVID-19 Outcomes. Clin Interv Aging 2023; 18:359-373. [PMID: 36923269 PMCID: PMC10010141 DOI: 10.2147/cia.s398386] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 03/02/2023] [Indexed: 03/18/2023] Open
Abstract
Coronavirus disease 2019 (COVID-19) spread rapidly and became a severe global public health threat. Older adults have a high risk of COVID-19 and its associated mortality. Sarcopenia has emerged as a predictor of poor outcomes in COVID-19 patients, including lengthy hospital stays, mortality, intensive care unit admission, need for invasive mechanical ventilation, and poor rehabilitation outcomes. Chronic inflammation, immune dysfunction, respiratory muscle dysfunction, and swallowing dysfunction may underlie the association between sarcopenia and the poor outcomes of COVID-19 patients. Interleukin 6 receptor blockers (tocilizumab or sarilumab) are recommended for treating patients with severe COVID-19, and their therapeutic effects on sarcopenia are of great interest. This review aimed to analyze the current reports on the association between sarcopenia and COVID-19 and provide an update on the contribution of sarcopenia to the severity and adverse outcomes of COVID-19 and its underlying mechanisms. We also aimed to explore the different screening tools for sarcopenia concurrent with COVID-19, and advocate for early diagnosis and treatment of sarcopenia. Given that the fight against the COVID-19 pandemic may be long-term, further research into understanding the effects of sarcopenia in patients infected with the Omicron variant is necessary.
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Affiliation(s)
- Yuhan Wang
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, People's Republic of China
| | - Shuwen Tan
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, People's Republic of China
| | - Qihui Yan
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, People's Republic of China
| | - Ying Gao
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, People's Republic of China
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Tetamo R, Fittipaldi C, Buono S, Umbrello M. Nutrition support for critically ill patients during the COVID-19 pandemic: the Italian SIAARTI survey. JOURNAL OF ANESTHESIA, ANALGESIA AND CRITICAL CARE 2022. [PMCID: PMC9361260 DOI: 10.1186/s44158-022-00063-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Background
Critically ill, COVID-19 patients are characterized by a hypermetabolic state and a reduced food intake and are at high risk of malnutrition and lean body mass loss. An appropriate metabolic-nutritional intervention aims to reduce complications and improve the clinical outcomes. We conducted a cross-sectional, multicenter, observational, nationwide online survey involving Italian Intensivists to assess the nutritional practices in critically ill patients with COVID-19. Results A group of experts in nutrition of the Italian Society of Anaesthesia Analgesia Resuscitation and Intensive Care (SIAARTI) developed a 24-item questionnaire; the 9000 members of the Society were invited to participate through emails and social networks. Data was collected from June 1 to August 1, 2021. A total of 545 responses were collected: 56% in northern, 25% in central, and 20% in southern Italy. Artificial nutrition support is directly handled by intensivists in > 90 of the cases; the nutritional status is assessed as suggested by the guidelines in more than 70% of the cases, and a form of nutrition support is started within the first 48 h from ICU admission by > 90% of the respondents. Nutritional targets are reached in 4–7 days in > 75% of the cases, mainly by the enteral route. Indirect calorimetry, muscle ultrasound, and bioimpedance analysis are used by a limited part of the interviewees. Only about a half of the respondents reported the nutritional issues in the ICU discharge summary. Conclusions This survey among Italian Intensivists during the COVID-19 epidemic showed how the beginning, progression, and route of nutritional support adhere to international recommendations, while recommendations on the tools to set the target and monitor the efficacy of the metabolic support are less followed. Supplementary Information The online version contains supplementary material available at 10.1186/s44158-022-00063-6.
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