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BACKGROUND: Respiratory sarcopenia is characterized by the weakness of respiratory muscles associated with sarcopenia due to aging or systemic diseases such as chronic kidney disease (CKD). Patients with CKD undergoing dialysis are particularly susceptible to respiratory muscle weakness caused by factors such as fluid overload and electrolyte imbalance. This weakness not only affects ventilation but also impairs oxygen uptake and delivery to muscle tissue, potentially leading to severe sarcopenia. Thus, the objective of this study is to conduct a respiratory sarcopenia screening in patients with CKD undergoing haemodialysis (HD) and peritoneal dialysis (PD). METHODS: This is an observational, cross-sectional and multicentre study conducted between March 2023 and March 2025. The study was approved by the Research Ethics Committee at two centres. Sarcopenia diagnosis is determined based on low handgrip strength and amount of appendicular skeletal muscle mass, assessed through bioelectrical impedance analysis. Respiratory sarcopenia is diagnosed in patients with sarcopenia who have low inspiratory muscle strength, evaluated through a manovacuometry test. The severity of sarcopenia and respiratory sarcopenia is defined, respectively, by low physical performance (measured using the Short Physical Performance Battery and Timed-Up and Go test) and pulmonary performance (measured through spirometry). Thus, this study will include 81 patients undergoing dialysis (41 on HD and 40 on PD) from three participating centres. DISCUSSION: The literature has been focused on respiratory function in CKD; however, the relationship with sarcopenia remains understudied. We believe that, similar to appendicular skeleton muscles, the axial skeleton muscles are also likely to weaken with the presence of chronic disease, such as CKD.
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Insuficiência Renal Crônica , Sarcopenia , Humanos , Sarcopenia/diagnóstico , Sarcopenia/etiologia , Diálise Renal/efeitos adversos , Força da Mão/fisiologia , Estudos Transversais , Insuficiência Renal Crônica/complicações , Insuficiência Renal Crônica/terapia , Músculo Esquelético , Estudos Observacionais como Assunto , Estudos Multicêntricos como AssuntoRESUMO
OBJECTIVE: This study aimed to determine the effects of inspiratory muscle training (IMT) on exercise capacity, respiratory muscle strength, length of hospital stay (LOS), and quality of life (QOL) following coronary artery bypass graft surgery. METHODS: The search was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses and the Cochrane Handbook and included the databases MEDLINE, EMBASE, CINAHL, Scopus, and CENTRAL. The review included randomized controlled trials utilizing IMT during phase 1 or 2 postoperative cardiac rehabilitation (PoCR) versus alternative treatment (active or passive control) in patients following coronary artery bypass graft surgery. RESULTS: Fifteen studies were included (11 phase 1 studies, 4 phase 2 studies) with no reported adverse events. In phase 1 PoCR, IMT reduced the LOS (-1.02 days; 95% CI = -2.00 to -0.03) and increased exercise capacity (6-minute walk distance) (+75.46 m; 95% CI = 52.34 to 98.57), and maximal inspiratory pressure (MIP) (10.46 cm H2O; 95% CI = 2.83 to 18.10), but had no effect on maximal expiratory pressure. In phase 2 PoCR, IMT increased 6-minute walk distance (45.84 m; 95% CI = 10.89 to 80.80), MIP (-23.19 cm H2O; 95% CI = -31.31 to -15), maximal expiratory pressure (20.18 cm H2O; 95% CI = 9.60 to 30.76), and QOL (-11.17; 95% CI = -17.98 to -4.36), with no effect on peak oxygen uptake. There was a high risk of bias for MIP (75% of the phase 1 studies) and 6MWT (1 of 4 phase 2 studies). The quality of the evidence ranged from very low to moderate. CONCLUSION: IMT significantly improves exercise capacity, respiratory muscle strength, LOS, and QOL in phase 1 and 2 PoCR. IMPACT: IMT may benefit patients during phase 1 and 2 of PoCR, considering the safety, low cost, and potential benefits.
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Exercícios Respiratórios , Reabilitação Cardíaca , Ponte de Artéria Coronária , Tempo de Internação , Força Muscular , Qualidade de Vida , Músculos Respiratórios , Humanos , Ponte de Artéria Coronária/reabilitação , Exercícios Respiratórios/métodos , Reabilitação Cardíaca/métodos , Músculos Respiratórios/fisiopatologia , Músculos Respiratórios/fisiologia , Tempo de Internação/estatística & dados numéricos , Força Muscular/fisiologia , Tolerância ao Exercício/fisiologia , Ensaios Clínicos Controlados Aleatórios como AssuntoRESUMO
COVID-19 may have residual consequences in multiple organs, including the cardiovascular system. The purpose of the present investigation is to quantify myocardial function in symptomatic individuals with long COVID and investigate the association between illness severity and myocardial function. A retrospective cross-sectional study was conducted in which symptomatic individuals with previous COVID-19 underwent echocardiographic analysis of left ventricle global longitudinal strain (LVGLS) and myocardial work (MW). Individuals also performed cardiopulmonary testing (CPX) to assess peak oxygen uptake (VO2peak). Differences between illness severity subgroups were analyzed by the Mann-Whitney test. Correlations were calculated using the Spearman correlation test. Multilinear regressions were performed to evaluate the influences of COVID-19 severity, body mass index, age, and sex on MW. Fifty-six individuals were included (critical subgroup: 17; moderate/severe subgroup: 39), 59% females; median age: 56 years (IQR: 43-63). CPX revealed a substantial reduction in VO2peak (median of 53% of predicted values). LVGLS were not statistically different between subgroups. Global wasted work (GWW) was higher in the critical subgroup [146 (104-212) versus 121 (74-163) mmHg%, p = 0.01], and global work efficiency (GWE) was lower in this subgroup [93 (91-95) versus 94 (93-96), p = 0.03]. Illness severity was the only independent predictor of GWW and GWE (GWW: r2 = 0.167; p = 0.009; GWE: r2 = 0.172; p = 0.005) in multilinear regressions. In our study with long COVID-19 individuals, despite having a similar LVGLS, patients had subclinical LV dysfunction, demonstrated only by an increase in GWW and a decrease in GWE.
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COVID-19 , Índice de Gravidade de Doença , Humanos , COVID-19/complicações , COVID-19/diagnóstico , COVID-19/fisiopatologia , Feminino , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Estudos Transversais , Adulto , Ecocardiografia , Função Ventricular Esquerda , SARS-CoV-2 , Consumo de Oxigênio , Disfunção Ventricular Esquerda/fisiopatologia , Disfunção Ventricular Esquerda/diagnóstico por imagem , Teste de EsforçoRESUMO
Background: Osteoarthritis (OA) is the most common and prevalent musculoskeletal disease associated with population aging, negatively impacting function and quality of life. A consequence of knee OA is quadriceps muscle weakness. Musculoskeletal rehabilitation using low load exercises, associated with Blood Flow Restriction (BFR) may be a useful alternative to high load exercises when those cannot be tolerated. Several systematic reviews have reported inconclusive results due to discrepancies in study findings, heterogeneity of results, evaluated time points, and research questions explored. Objective: To perform an overview of systematic reviews with meta-analyses, synthesizing the most recent evidence on the effects of muscle strength training with BFR for knee OA. Methodology: Systematic reviews that include primary controlled and randomized clinical trials will be considered for inclusion. Articles will be considered only if they present a clear and reproducible methodological structure, and when they clearly demonstrate that a critical analysis of the evidence was carried out using instrumented analysis. Narrative reviews, other types of review, overviews of systematic reviews, and diagnostic, prognostic and economic evaluation studies will be excluded. Studies must include adults aged 40 years and older with a diagnosis of knee OA. Two authors will perform an electronic search with guidance from an experienced librarian. The following databases will be searched: PubMed via MEDLINE, Embase, CENTRAL (Cochrane Central Register of Controlled Trials), PEDro, Cumulative Index to Nursing and Allied Health Literature (CINAHL) via EBSCO host, Web of Science, and the gray literature. The search strategy used in the databases will follow the acronym PICOS (population, intervention, comparison, outcome, and study design). Screening (i.e., titles and abstracts) of studies identified by the search strategy will be selected using Rayyan (http://rayyan.qcri.org). The quality assessment will be performed using the "Assessment of Multiple Systematic Reviews" (AMSTAR-2) tool. Systematic Review Registration: PROSPERO, CRD42022367209.
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PURPOSE: To propose a standardized method for the use of the International Classification of Functioning, Disability and Health (ICF) to describe the health status in Post-Acute COVID-19 Syndrome (PACS) and investigate interrater agreement in the linking process in instruments and clinical exams using the ICF categories. MATERIALS AND METHODS: Cross-sectional and interrater agreement study that followed the Guidelines for Reporting Reliability and Agreement Studies. Two raters performed the linking coding process in instruments of quality of life, anxiety and depression, fatigue and pulmonary function, inspiratory muscle strength and cardiopulmonary exercise testing. The codes were qualified by standards defined to each instrument and exams. RESULTS: The instrument with the lowest Cohen's Kappa coefficient was anxiety and depression (k = 0.57). Forty ICF codes were linked to clinical instruments and exams. The fatigue instrument presented a higher degree of disability by the qualification process, from severe to complete, in the linked codes. CONCLUSION: The study presents a standardized method for the assessment of the health status of patients with PACS through ICF. Restriction in work performance, socialization and family relationships as well as disabilities in physical endurance, fatigue and exercise tolerance were found in the sample. The agreement between the raters was moderate to perfect, demonstrating that the method can be reproducible.
The body structures and functions, environmental factors, activities and participation in a person's environment are determinant aspects of his health.Ways to measure these aspects are key to assessing health not only as absence of disease, so the International Classification of Disability and Functional Health demonstrates the ability to fully describe health.This study proposes a standardization in the use of the tool to facilitate usability in clinical practice.
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OBJECTIVES: To analyze diaphragmatic thickness, at end-inspiration and end-expiration, diaphragmatic thickening index and mobility via US under two different modalities of inspiratory muscle loading, in two different modalities of inspiratory muscle loading and different load intensities at full-vital capacity maneuvers and the relationship between diaphragmatic thickness with pulmonary function tests in participants with HF. METHODS: This randomized crossover trial, enrolled with 17 HF subjects, evaluated diaphragm thickness (Tdi, mm), fractional thickness (TFdi, %), and mobility (mm) US during low and high intensities (30% and 60% of maximal inspiratory pressure-MIP) with two modalities of inspiratory muscle loading mechanical threshold loading (MTL) and tapered flow-resistive loading (TFRL). RESULTS: Both MTL and TFRL produced a increase in Tdi, but only with high intensity loading compared to baseline-2.21 (0.26) vs. 2.68 (0.33) and 2.73 (0.44) mm; p = .01. TFdi was greater than baseline under all conditions, except during low intensity of TFRL. Diaphragm mobility was greater than baseline under all conditions, and high intensity of TFRL elicited greater mobility compared to all other conditions. Additionally, baseline Tdi was moderately correlated with pulmonary function tests. CONCLUSIONS: MTL and TFRL modalities elicit similar increases in diaphragm thickness at loads, but only during high intensity loading it was greater than baseline. Diaphragm mobility was significantly greater than baseline under both loads and devices, and at high intensity compared to low intensity, although TFRL produced greater mobility compared to modalities of inspiratory muscle loading. There is an association between diaphragm thickness and pulmonary function tests.
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Estudos Cross-Over , Diafragma , Insuficiência Cardíaca , Inalação , Humanos , Diafragma/fisiopatologia , Diafragma/diagnóstico por imagem , Diafragma/fisiologia , Masculino , Pessoa de Meia-Idade , Feminino , Insuficiência Cardíaca/fisiopatologia , Insuficiência Cardíaca/diagnóstico por imagem , Inalação/fisiologia , Idoso , Testes de Função Respiratória , Músculos Respiratórios/fisiopatologiaRESUMO
AIMS: To develop and validate equations predicting heart rate (HR) at the first and second ventilatory thresholds (VTs) and an optimized range-adjusted prescription for patients with cardiometabolic disease (CMD). To compare their performance against guideline-based exercise intensity domains. METHODS: Cross-sectional study involving 2,868 CMD patients from nine countries. HR predictive equations for first and second VTs (VT1, VT2) were developed using multivariate linear regression with 975 cycle-ergometer cardiopulmonary exercise tests (CPET). 'Adjusted' percentages of peak HR (%HRpeak) and HR reserve (%HRR) were derived from this group. External validation with 1,893 CPET (cycle-ergometer or treadmill) assessed accuracy, agreement, and reliability against guideline-based %HRpeak and %HRR prescriptions using mean absolute percentage error (MAPE), Bland-Altman analyses, intraclass correlation coefficients (ICC). RESULTS: HR predictive equations (R²: 0.77 VT1, 0.88 VT2) and adjusted %HRR (VT1: 42%, VT2: 77%) were developed. External validation demonstrated superiority over widely used guideline-directed intensity domains for %HRpeak and %HRR. The new methods showed consistent performance across both VTs with lower MAPE (VT1: 7.1%, VT2: 5.0%), 'good' ICC for VT1 (0.81, 0.82) and 'excellent' for VT2 (0.93). Guideline-based exercise intensity domains had higher MAPE (VT1: 6.8%-21.3%, VT2: 5.1%-16.7%), 'poor' to 'good' ICC for VT1, and 'poor' to 'excellent' for VT2, indicating inconsistencies related to specific VTs across guidelines. CONCLUSION: Developed and validated HR predictive equations and the optimized %HRR for CMD patients for determining VT1 and VT2 outperformed the guideline-based exercise intensity domains and showed ergometer interchangeability. They offer a superior alternative for prescribing moderate intensity exercise when CPET is unavailable.
Equations to predict heart rate at ventilatory thresholds were developed and externally validated, offering a new perspective when a cardiopulmonary exercise test is unavailable to accurately determine the aerobic exercise intensity domains. Additionally, an adjusted range for exercise intensity prescription based on the percentage of heart rate reserve (%HRR) was provided, utilizing a large sample from eight countries. The proposed equations and the range-adjusted %HRR significantly outperformed the guideline-directed methods for determining exercise intensity, exhibiting higher accuracy, agreement, and reliability. Exercise intensity prescription based on the percentage of heart rate peak showed higher errors, raising concerns about its clinical applicability. Our study may enhance the efficacy of exercise training and physical activity advice when gas exchange analysis is unavailable, potentially leading to improved clinical outcomes, even in low-resource settings. Employing these approaches in research could facilitate more tailored and consistent interventions, introducing a contemporary perspective for studies comparing exercise intensity prescriptions.
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Resumo Fundamento A intolerância ao exercício pós-COVID-19 não é bem entendida. O teste de esforço cardiopulmonar (TECP) pode identificar as limitações ao exercício subjacentes. Objetivos Avaliar a etiologia e a magnitude da intolerância ao exercício em sujeitos pós-COVID-19. Métodos Estudo de coorte que avaliou sujeitos com níveis de gravidades diferentes da doença COVID-19 e um grupo de controle selecionado por pareamento por escores de propensão. Em uma amostra seleta com TECP anterior à infecção viral disponível, foram realizadas comparações antes e depois. O nível de significância foi de 5% em toda a análise. Resultados Foram avaliados cento e quarenta e dois sujeitos com COVID-19 (idade mediana: 43 anos, 57% do sexo masculino), com níveis de gravidade de doença diferentes (60% leve, 21% moderada, 19% grave). O TECP foi realizado 11,5 (7,0, 21,2) semanas após o aparecimento da doença, com as limitações ao exercício sendo atribuídas aos sistemas muscular periférico (92%), pulmonar (6%), e cardiovascular (2%). Menor valor mediano do consumo de oxigênio pico percentual foi observado no subgrupo com níveis graves de doença (72,2%) em comparação com os controles (91,6%). O consumo de oxigênio foi diferente entre os grupos com diferentes níveis de gravidade de doença e o controle no pico e nos limiares ventilatórios. Inversamente, os equivalentes ventilatórios, a inclinação da eficiência do consumo de oxigênio, e o pico do pulso de oxigênio foram semelhantes. A análise do subgrupo de 42 sujeitos com TECP prévio revelou uma redução significativa no pico de velocidade da esteira no subgrupo com nível leve de doença, e no consumo de oxigênio no pico e nos limiares ventilatórios nos subgrupos com níveis moderado/grave. Por outro lado, os equivalentes ventilatórios, a inclinação da eficiência do consumo de oxigênio e o pico do pulso de oxigênio não apresentaram alterações significativas. Conclusões A fadiga do músculo periférico foi a etiologia de limitação de exercício mais comum em pacientes pós-COVID-19 independentemente da gravidade da doença. Os dados sugerem que o tratamento deve enfatizar programas de reabilitação abrangentes, incluindo componentes aeróbicos e de fortalecimento muscular.
Abstract Background Post-COVID-19 exercise intolerance is poorly understood. Cardiopulmonary exercise testing (CPET) can identify the underlying exercise limitations. Objectives To evaluate the source and magnitude of exercise intolerance in post-COVID-19 subjects. Methods Cohort study assessing subjects with different COVID-19 illness severities and a control group selected by propensity score matching. In a selected sample with CPET prior to viral infection, before and after comparisons were performed. Level of significance was 5% in the entire analysis. Results One hundred forty-four subjects with COVID-19 were assessed (median age: 43.0 years, 57% male), with different illness severities (60% mild, 21% moderate, 19% severe). CPET was performed 11.5 (7.0, 21.2) weeks after disease onset, with exercise limitations being attributed to the peripheral muscle (92%), and the pulmonary (6%), and cardiovascular (2%) systems. Lower median percent-predicted peak oxygen uptake was observed in the severe subgroup (72.2%) as compared to the controls (91.6%). Oxygen uptake differed among illness severities and controls at peak and ventilatory thresholds. Conversely, ventilatory equivalents, oxygen uptake efficiency slope, and peak oxygen pulse were similar. Subgroup analysis of 42 subjects with prior CPET revealed significant reduction in only peak treadmill speed in the mild subgroup and in oxygen uptake at peak and ventilatory thresholds in the moderate/severe subgroup. By contrast, ventilatory equivalents, oxygen uptake efficiency slope, and peak oxygen pulse did not change significantly. Conclusions Peripheral muscle fatigue was the most common exercise limitation etiology in post-COVID-19 patients regardless of the illness severity. Data suggest that treatment should emphasize comprehensive rehabilitation programs, including aerobic and muscle strengthening components.
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Resumo Fundamento A pandemia da COVID-19 teve um impacto sobre os programas de reabilitação cardiovasculares (RC) no Brasil. Objetivos Descrever características dos programas de RC no Brasil, os impactos da primeira onda epidemiológica da COVID-19 (primeiros 60 dias) sobre os programas, e apresentar as iniciativas usadas para superar esses impactos. Métodos Este estudo transversal e retrospectivo usou um questionário online específico. Os participantes eram coordenadores de programas de RC. As variáveis foram apresentadas por região geográfica do Brasil, como as seguintes categorias: característica demográficas, clínicas e operacionais. O nível de significância estatística foi definido em 5%. Resultados Cinquenta e nove programas de RC atendiam 5349 pacientes, dos quais somente 1817 eram pacientes após eventos cardiovasculares agudos, o que correspondia a 1,99% dos pacientes internados no mês anterior à pesquisa (n=91.231). O maior impacto foi a suspensão das atividades presenciais, o que ocorreu de maneira similar em áreas com as taxas mais altas e áreas com as taxas mais baixas de COVID-19 no período. Quarenta e quatro (75%) programas foram interrompidos de forma breve, e três (5%) foram encerrados. Todos os 42 programas que já utilizavam estratégias de reabilitação remota notaram aumento substancial nas atividades, baseadas principalmente no uso da mídia e chamadas por vídeo. Somente três (5%) consideraram seguro atender pacientes durante os primeiros 60 dias. Conclusões Houve redução no número de programas de RC devido a pandemia da COVID-19. Atividades de telerreabilitação aumentaram durante os primeiros dois meses da pandemia da COVID-19, mas que não foi suficiente para superar a redução nas atividades dos programas de RC no Brasil.
Abstract Background The COVID-19 pandemic had an impact on cardiovascular rehabilitation (CR) programs in Brazil. Objectives To describe the characteristics of CR programs in Brazil, the impacts of the first epidemiological wave of COVID-19 (first 60 days) on the programs and present the initiatives used to overcome the impacts. Method This cross-sectional and retrospective study utilized a specific online survey. Participants were coordinators of CR programs. Variables were presented by Brazilian geographic region and as the following categories: demographic, clinical and operational characteristics. The significance level for statistical analysis was set at 5%. Results Fifty-nine CR programs were responsible for 5,349 patients, of which only 1,817 were post-acute cardiovascular events, which corresponded to 1.99% of hospitalized patients in the month prior to the survey (n=91,231). The greatest impact was the suspension of on-site activities, which occurred similarly in areas with the highest and the lowest rates of COVID-19 in the period. Forty-five programs (75%) were shortly interrupted, while three (5%) were ended. All 42 programs that already used remote rehabilitation strategies noticed a substantial increase in activities, based primarily on the use of media and video calling. Only three (5%) considered safe to see patients during the first 60 days. Conclusions There was a reduction in the number of CR programs with the COVID-19 pandemic. Telerehabilitation activities increased during the first two months of the COVID-19 pandemic, but this was not enough to overcome the reduction in CR program activities across Brazil.
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Resumo Fundamento A espirometria é subutilizada na insuficiência cardíaca (IC) e não está claro o grau de associação de cada defeito com a capacidade de exercício e com o prognóstico desses pacientes. Objetivo Determinar a relação da %CVF prevista (ppCVF) e do VEF1/CVF contínuos com: 1) pressão inspiratória máxima (PImáx), fração de ejeção do ventrículo esquerdo (FEVE) e desempenho ao exercício; e 2) prognóstico, para o desfecho composto de morte cardiovascular, transplante cardíaco ou implante de dispositivo de assistência ventricular. Métodos Coorte de 111 participantes com IC (estágios AHA C/D) sem pneumopatia; foram submetidos a espirometria, manovacuometria e teste cardiopulmonar máximo. As magnitudes de associação foram verificadas por regressões lineares e de Cox (HR; IC 95%), ajustadas para idade/sexo, e p <0,05 foi considerado significativo. Resultados Com idade média 57±12 anos, 60% eram homens, 64% em NYHAIII. A cada aumento de 10% no VEF1/CVF [β 7% (IC 95%: 3-10)] e no ppCVF [4% (2-6)], foi associado à reserva ventilatória (VRes); no entanto, apenas o ppCVF associado à PImáx [3,8cmH2O (0,3-7,3)], à fração de ejeção do ventrículo esquerdo (FEVE) [2,1% (0,5-3,8)] e ao VO2 pico [0,5mL/kg/min (0,1-1,0)], considerando idade/sexo. Em 2,2 anos (média), ocorreram 22 eventos; tanto FEV1/FVC (HR 1,44; IC 95%: 0,97-2,13) quanto ppCVF (HR 1,13; 0,89-1,43) não foram associados ao desfecho. Apenas no subgrupo FEVE ≤50% (n=87, 20 eventos), VEF1/CVF (HR 1,50; 1,01-2,23), mas não ppCVF, foi associado a risco. Conclusão Na IC crônica, ppCVF reduzido associou-se a menor PImáx, FEVE, VRes e VO2 pico, mas não distinguiu pior prognóstico em 2,2 anos de acompanhamento. Entretanto, VEF1/CVF associou-se apenas com VRes, e, em participantes com FEVE ≤50%, o VEF1/CVF reduzido mostrou pior prognóstico proporcional. Portanto, VEF1/CVF e ppFVC contribuem para melhor fenotipagem de pacientes com IC.
Abstract Background Spirometry is underused in heart failure (HF) and the extent to which each defect associates with exercise capacity and prognosis is unclear. Objective To determine the distinct relationship of continuous %predicted FVC (ppFVC) and FEV1/FVC with: 1) maximal inspiratory pressure (MIP), left ventricular ejection fraction (LVEF), exercise performance; and 2) prognosis for the composite of cardiovascular death, heart transplantation or left ventricular assist device implant. Methods A cohort of 111 HF participants (AHA stages C/D) without diagnosed pneumopathy, spirometry, manovacuometry and maximum cardiopulmonary test. The association magnitudes were verified by linear and Cox (HR; 95% CI) regressions, age/sex adjusted. A p<0.05 was considered significant. Results Age was 57±12 years, 60% men, 64% in NYHA III. Every 10%-point increase in FEV1/FVC [β 7% (95% CI: 3-10)] and ppFVC [4% (2-6)] associated with ventilatory reserve (VRes), however only ppFVC associated with MIP [3.8 cmH2O (0.3-7.3)], LVEF [2.1% (0.5-3.8)] and VO2peak [0.5 mL/kg/min (0.1-1.0)], accounting for age/sex. In 2.2 years (mean), 22 events occurred, and neither FEV1/FVC (HR 1.44; 95% CI: 0.97-2.13) nor ppFVC (HR 1.13; 0.89-1.43) was significantly associated with the outcome. Only in the LVEF ≤50% subgroup (n=87, 20 events), FEV1/FVC (HR 1.50; 1.01-2.23), but not ppFVC, was associated with greater risk. Conclusions In chronic HF, reduced ppFVC associated with lower MIP, LVEF, VRes and VO2peak, but no distinct poorer prognosis over 2.2 years of follow-up. Distinctively, FEV1/FVC was associated only with VRes, and, in participants with LVEF ≤50%, FEV1/FVC reduction proportionally worsened prognosis. Therefore, FEV1/FVC and ppFVC add supplementary information regarding HF phenotyping.
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ABSTRACT Objective: To establish normative values and a reference equation for the number of steps climbed during the six-minute step test (6MST) in healthy adults, and to assess the reliability of the test and of the equation. Methods: This was a multicenter cross-sectional study involving 468 healthy volunteers (age range: 18-79 years) recruited from the general community in six research laboratories across different regions of Brazil, which is a country with continental dimensions. The 6MST was performed twice (30-min interval), and clinical, demographic, and functional variables were evaluated. An independent sample of 24 volunteers was evaluated to test the reference equation a posteriori. Results: The number of steps had excellent test-retest reliability (intraclass correlation coefficient = 0.96 [95%CI: 0.95-0.97]), and the mean number of steps was 175 ± 45, the number being 14% greater in males than in females. The best performance on the test was correlated with age (r = −0.60), sex (r = 0.28), weight (r = 0.13), height (r = 0.41), BMI (r = −0.22), waist circumference (r = −0.22), thigh circumference (r = 0.15), FVC (r = 0.54), and physical activity level (r = 0.17; p < 0.05 for all). In the regression analysis, age, sex, height, and weight explained 42% of the variability of the 6MST. Normative values were established for the 6MST according to age and sex. There was no difference between the 6MST values from the independent sample and its predicted values (157 ± 29 steps vs. 161 ± 25 steps; p = 0.47; 97% of predicted values). Conclusions: The normative values and the reference equation for the 6MST in this study seem adequate to accurately predict the physical functional performance in adults in Brazil.
RESUMO Objetivo: Estabelecer valores normativos e uma equação de referência para o número de degraus subidos no teste do degrau de seis minutos (TD6) em adultos saudáveis, bem como avaliar a confiabilidade do teste e da equação. Métodos: Estudo transversal multicêntrico com 468 voluntários saudáveis (faixa etária: 18-79 anos) recrutados na comunidade geral em seis laboratórios de pesquisa em diferentes regiões do Brasil, um país de dimensões continentais. O TD6 foi realizado duas vezes (com 30 min de intervalo entre uma e outra), e foram avaliadas variáveis clínicas, demográficas e funcionais. Uma amostra independente composta por 24 voluntários foi avaliada para testar a equação de referência a posteriori. Resultados: O número de degraus subidos apresentou excelente confiabilidade teste-reteste [coeficiente de correlação intraclasse = 0,96 (IC95%: 0,95-0,97)], e a média de degraus subidos foi de 175 ± 45, sendo 14% maior no sexo masculino. O melhor desempenho no teste correlacionou-se com as seguintes variáveis: idade (r = −0,60), sexo (r = 0,28), peso (r = 0,13), estatura (r = 0,41), IMC (r = −0,22), circunferência da cintura (r = −0,22), circunferência da coxa (r = 0,15), CVF (r = 0,54) e nível de atividade física (r = 0,17; p < 0,05 para todos). Na análise de regressão, idade, sexo, estatura e peso explicaram 42% da variabilidade do TD6. Foram estabelecidos valores normativos para o TD6 de acordo com a idade e o sexo. Não houve diferença entre os valores do TD6 na amostra independente e os valores previstos (157 ± 29 vs. 161 ± 25 degraus subidos; p = 0,47; 97% dos valores previstos). Conclusões: Os valores normativos e a equação de referência para o TD6 neste estudo parecem adequados para predizer com precisão o desempenho físico funcional em adultos no Brasil.
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RESUMO Objetivo: Identificar o perfil clínico e epidemiológico das unidades de terapia intensiva adulto no Brasil. Métodos: Foi realizada revisão sistemática, por meio de estratégia abrangente nas bases de dados PubMed®, Embase, SciELO e Biblioteca Virtual em Saúde. Os critérios de elegibilidade para esta revisão foram estudos observacionais que descreveram o perfil epidemiológico e/ou clínico de pacientes críticos, internados em unidades de terapia intensiva brasileiras e publicados no período entre 2007 e 2020. Resultados: Do total de 4.457 estudos identificados, 27 foram elegíveis para esta revisão, constituindo análise de 113 unidades de terapia intensiva e amostra final composta de 75.280 indivíduos. Observou-se predominância de pacientes do sexo masculino e idosos. As doenças cardiovasculares foram a principal causa de internação na unidade de terapia intensiva e o Acute Physiology and Chronic Health Evaluation II foi o sistema de avaliação de gravidade da doença mais utilizado. O tempo de permanência e a mortalidade na unidade de terapia intensiva mostram grande variação entre as instituições. Conclusão: Estes resultados são relevantes para direcionar o planejamento e a organização nas unidades de terapia intensiva, promovendo subsídio para a tomada de decisões e implementações de intervenções que garantam melhor qualidade da assistência ao paciente. Registro PROSPERO: CRD4201911808.
ABSTRACT Objective: To identify the clinical and epidemiological profile of adult intensive care units in Brazil. Methods: A systematic review was performed using a comprehensive strategy to search PubMed®, Embase, SciELO, and the Biblioteca Virtual em Saúde. The eligibility criteria for this review were observational studies that described the epidemiological and/or clinical profile of critically ill patients admitted to Brazilian intensive care units and were published between 2007 and 2020. Results: From the 4,457 identified studies, 27 were eligible for this review, constituting an analysis of 113 intensive care units and a final sample of 75,280 individuals. There was a predominance of male and elderly patients. Cardiovascular diseases were the main cause of admission to the intensive care unit. The Acute Physiology and Chronic Health Evaluation II score was the most widely used disease severity assessment system. The length of stay and mortality in the intensive care unit varied widely between institutions. Conclusion: These results can help guide the planning and organization of intensive care units, providing support for decision-making and the implementation of interventions that ensure better quality patient care. Registration PROSPERO: CRD4201911808.
Assuntos
Humanos , Masculino , Adulto , Idoso , Estado Terminal , Unidades de Terapia Intensiva , Brasil , Mortalidade Hospitalar , Hospitalização , Tempo de InternaçãoRESUMO
Resumo Avaliar e correlacionar o estado funcional (EF) e a força muscular (FM) em adultos jovens, adultos e idosos em Unidade de Terapia Intensiva (UTI). Coorte prospectiva com 48 pacientes avaliando EF por meio do Functional Status Score for the Intensive Care Unit (FSS-ICU) e FM pelo Medical Research Council Sum-Score (MRC-SS) e força de preensão palmar (FPP), no despertar e na alta da UTI. Dados analisados pelos testes Kruskall-Wallis, Qui-quadrado, Wilcoxon e Correlação de Sperman. Na comparação do despertar em relação à alta, o EF e o MRC-SS foram maiores na alta em todos os grupos, com menor ganho nos idosos. A FPP aumentou bilateralmente na alta, exceto no grupo de adultos, pois apresentavam valores maiores no despertar. Na comparação dos grupos, o FSS-ICU foi maior nos adultos no despertar e alta, e a FPP-D menor nos idosos. O EF apresentou forte associação com a FM em adultos jovens e adultos, pois ambos apresentam progressiva melhora durante a permanência na UTI. Os idosos apresentam menor ganho do estado funcional, além de apresentarem menor força muscular desde o despertar. Estas variáveis apresentam importante associação apenas nos adultos jovens e adultos, considerando a natureza multifatorial do processo de adoecimento e incapacidade nos idosos.
Abstract The aim of this study was to analyze and assess the association between functional status (FS) and muscle strength (MS) in young adults, adults and older adults in an intensive care unit (ICU). We conducted a prospective cohort study with 48 patients. FS was assessed using the Functional Status Score for the Intensive Care Unit (FSS-ICU) and MS was measured using the Medical Research Council Sum-Score (MRC-SS) and by testing handgrip strength (HS). The assessments were performed on awakening and ICU discharge. The data were analyzed using the Kruskall-Wallis, chi-squared, Wilcoxon and Spearman's correlation tests. FS and MRC-SS scores were higher on ICU discharge in all groups. Gains were lowest in the older adult group. HS was greater in both hands on ICU discharge in all groups except the adults. FSS-ICU on both awakening and ICU discharge was highest in the adults; HS-R was lowest in the older adults. There was a strong association between FS and MS in the young adults and adults. FS and MS showed progressive improvement during ICU stay. Gains in FS and MS on awakening and ICU discharge were lowest among the older adults. Important associations were found between these variables in all groups except the older adults. This can be explained by the multifactorial nature of illness and incapacity in this group.
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Humanos , Idoso , Adulto Jovem , Força da Mão , Estado Funcional , Estudos Prospectivos , Força Muscular , Unidades de Terapia IntensivaRESUMO
CONTEXTUALIZAÇÃO: A Síndrome de Marfan (SM) é uma doença autossômica dominante do tecido conjuntivo que envolve os sistemas ocular, cardiovascular e musculoesquelético, causada por mutações no gene da fibrilina1, gerando flacidez nos ligamentos articulares, favorecendo a hipermobilidade articular e redução na contenção do crescimento ósseo. OBJETIVOS: Avaliar as medidas antropométricas, alterações musculoesqueléticas e a frequência do tratamento fisioterapêutico nos pacientes com SM. MÉTODOS: Participaram deste estudo 26 pacientes, sendo 17 do gênero feminino, com idade de 13,23±2,77 anos, massa corpórea de 51,5±24-68 Kg, altura de 1,70±1,40-1,81 m e envergadura de 1,73±0,12 cm, e nove do gênero masculino, com idade de 14,44±2,18, massa corpórea de 61,0±42-72 Kg, altura de 1,83±1,66-1,97 m e envergadura de 1,93±0,13. Foram obtidas medidas antropométricas, alterações ME de forma padronizada, sendo o pectus e a escoliose, por avaliação radiológica, e a angulação (â) da curva escoliótica, pelo método de Cobb; a aracnodactilia, pelo sinal do polegar e teste de Walker-Murdoch, e a dolicostenomelia, pela envergadura em relação à altura. Os pacientes responderam a um questionário quanto à participação em tratamento de fisioterapia. RESULTADOS: Quando comparados com a estimativa brasileira, a massa corpórea e a altura apresentaram valores maiores no gênero feminino (p=0,001 e p<0,0005) e masculino (p=0,019 e p=0,0001). Das alterações musculoesqueléticas, encontrou-se pectus em 3 (11 por cento), pectus e escoliose em 19 (73 por cento), dolicostenomelia em 11 (42 por cento) e aracnodactilia em 21(80 por cento). Onze (42 por cento) pacientes com SM já haviam realizado tratamento de fisioterapia. CONCLUSÕES: As alterações antropométricas e musculoesqueléticas estão presentes na SM, e o tratamento fisioterapêutico é pouco frequente.
BACKGROUND: Marfan syndrome (MS) is an autosomic dominant condition of the connective tissue that involves the ocular, cardiovascular and musculoskeletal systems. MS is caused by mutations in the fibrillin-1 gene, leading to joint ligaments flaccidity, joint hypermobility and an overgrowth of the long bones. OBJECTIVES: The aim of the present study was to assess anthropometry, musculoskeletal alterations and the prevalence of physical therapy treatments among patients with MS. METHODS: Twenty-six patients were included in this study [17 females (age: 13.23±2.77 years; body mass 51.5±24-68 Kg; height 1.70±1.40-1.81 m; arm span: 1.73±0.12 m) and 9 males (age: 14.44±2.18; body mass: 61.0±42-72 Kg; height: 1.83±1.66-1.97 m; arm span: 1.93±0.13 m)]. Anthropometric measurements and musculoskeletal abnormalities were determined in a standardized fashion: pectus and scoliosis were assessed through radiography and angulation (â) of the scoliosis curve using the Cobb method; arachnodactyly was assessed through the thumb sign and Walker-Murdoch test and dolichostenomelia was assessed by arm span in relation to height. Patients also responded to a questionnaire addressing participation in physical therapy. RESULTS: In comparison to values estimated for the Brazilian population, mass and height were greater among the patients with MS (females: p=0.001 e p<0.0005 e males p=0.019 e p=0.0001, respectively). The following musculoskeletal abnormalities were found: pectus in 3 patients (11 percent), pectus and scoliosis in 19 (73 percent), dolichostenomelia in 11 (42 percent) and arachnodactyly in 21 (80 percent). Eleven patients (42 percent) with MS had previously undergone physical therapy. CONCLUSIONS: Patients with MS exhibit altered musculoskeleto and anthropometry and have infrequent physical therapy treatment.
Assuntos
Adolescente , Feminino , Humanos , Masculino , Antropometria , Síndrome de Marfan/diagnóstico , Anormalidades Musculoesqueléticas/diagnóstico , Estudos Transversais , Síndrome de Marfan/terapia , Modalidades de FisioterapiaRESUMO
O tratamento da contusão pulmonar quando instituído de forma correta é bastante simples na maioria das vezes. As alterações fisiopatológicas acontecem como decorrência dos efeitos produzidos pela perda da integridade da parede torácica, acúmulo de líquidos na cavidade pleural, obstrução da via aérea e disfunção pulmonar. A manobra de recrutamento alveolar consiste na reabertura de áreas pulmonares colapsadas através do aumento da pressão inspiratória na via aérea. O objetivo deste relato foi apresentar um caso de contusão pulmonar, avaliando a efetividade da manobra de recrutamento alveolar e revisão da literatura. Paciente do sexo masculino, 33 anos, com quadro clínico de trauma de tórax bilateral e trauma crânio-encefálico, evoluiu com rebaixamento do nível de consciência, insuficiência respiratória aguda, choque hipovolêmico, hemoptise. Foi submetido a toracocentese, drenagem torácica bilateral e submetido a ventilação mecânica invasiva. Após 48 horas de ventilação mecânica invasiva, segundo os preceitos da estratégia protetora, iniciou-se manobras de recrutamento alveolar modo, Pressão controlada 10 cmH2O, freqüência respiratória 10rpm, tempo inspiratório 3.0, pressão positiva no final da expiração 30 cmH2O, FIO2 100 por cento, durante dois minutos. Após a aplicação da manobra de recrutamento alveolar O paciente apresentou melhora pulmonar significativa da oxigenação, caracterizada por aumento da relação PaO2/FiO2, porém houve variação da mesma entre 185 a 322. Obteve alta da unidade na terapia intensiva após 22 dias e hospitalar após 32 dias da admissão. A manobra de recrutamento alveolar neste paciente apresentou resultados significativos no tratamento da contusão pulmonar, melhorando a oxigenação arterial, prevenindo o colapso alveolar e revertendo quadros de atelectasias.
Treatment of pulmonary contusion when adequately established is very simple in most cases. Pathophysiological changes occur as a result of the effects produced by loss of chest wall integrity, accumulation of fluid in the pleural cavity, obstruction of the airways and lung dysfunction. The alveolar recruitment maneuver is the reopening of collapsed lung areas by increasing inspiratory pressure in the airway. The primary objective of this case report was to evaluate the effectiveness of the alveolar recruitment maneuver in a patient with pulmonary contusion. A 33 year old male patient, with a clinical condition of bilateral chest trauma and traumatic brain injury, evolved with reduction of the level of consciousness, acute respiratory failure, hypovolemic shock and hemoptysis. The patient underwent thoracentesis, bilateral thoracic drainage and was also submitted to invasive mechanical ventilation. After 48 hours of invasive mechanical ventilation, in accordance with protective strategy an alveolar recruitment maneuver mode, pressure-controlled ventilation, pressure controlled 10 cmH2O, respiratory rate 10 rpm, inspiratory time 3.0, positive end-expiratory pressure 30 cmH2O and FI0(2) 100 percent, for two minutes. After the alveolar recruitment maneuver, the patient presented clinical pulmonary improvement, but there was a variation of 185 to 322 of Pa0(2)/FiO2 (arterial partial pressure of oxygen/ fraction of inspired oxygen). He was discharged from the intensive care unit 22 days after admission. The alveolar recruitment maneuver in this patient showed significant results in the treatment of pulmonary contusion, improving blood oxygenation, preventing alveolar collapse and reversing atelectasis.