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BACKGROUND: Physical exercise delays the sarcopenic process and can reverse the loss of muscle strength, improve quality of life and prognosis in cirrhotic patients. OBJECTIVE: The aim was to verify the effects of face-to-face versus home aerobic exercise on the variables fatigue, respiratory and peripheral muscle strength, functional capacity and quality of life in patients with compensated cirrhosis. METHODS: Patients were selected by convenience, stratified and randomized into supervised face-to-face exercise (n=13) and home exercise without daily supervision (n=12). Patients were submitted to a program of aerobic physical exercises, with progressive duration of 30 to 50 minutes, twice a week for twelve weeks. Before starting the program and every four weeks, all patients in both groups were assessed for fatigue (fatigue severity scale), respiratory (Pimáx and Pemáx) and peripheral (concentric quadriceps peak torque) muscle strength, functional capacity (6-minute walking distance) and quality of life (Short Form-36 Health Survey questionnaire). RESULTS: The face-to-face group showed reduced fatigue (P<0.001), increased inspiratory (P<0.001), expiratory (P<0.001) and peripheral (P<0.001) muscle strength of the 6MWD (P<0.001) and improved quality of life. The home group showed no significant improvement in these variables. CONCLUSION: A face-to-face program of moderate aerobic exercise in patients with compensated cirrhosis reduces fatigue, improves functional capacity and quality of life and increases respiratory and peripheral muscle strength. Home physical exercises do not cause the same adaptive effects in this population.

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ABSTRACT Background: Physical exercise delays the sarcopenic process and can reverse the loss of muscle strength, improve quality of life and prognosis in cirrhotic patients. Objective: The aim was to verify the effects of face-to-face versus home aerobic exercise on the variables fatigue, respiratory and peripheral muscle strength, functional capacity and quality of life in patients with compensated cirrhosis. Methods: Patients were selected by convenience, stratified and randomized into supervised face-to-face exercise (n=13) and home exercise without daily supervision (n=12). Patients were submitted to a program of aerobic physical exercises, with progressive duration of 30 to 50 minutes, twice a week for twelve weeks. Before starting the program and every four weeks, all patients in both groups were assessed for fatigue (fatigue severity scale), respiratory (Pimáx and Pemáx) and peripheral (concentric quadriceps peak torque) muscle strength, functional capacity (6-minute walking distance) and quality of life (Short Form-36 Health Survey questionnaire). Results: The face-to-face group showed reduced fatigue (P<0.001), increased inspiratory (P<0.001), expiratory (P<0.001) and peripheral (P<0.001) muscle strength of the 6MWD (P<0.001) and improved quality of life. The home group showed no significant improvement in these variables. Conclusion: A face-to-face program of moderate aerobic exercise in patients with compensated cirrhosis reduces fatigue, improves functional capacity and quality of life and increases respiratory and peripheral muscle strength. Home physical exercises do not cause the same adaptive effects in this population.

RESUMO Contexto: O exercício físico retarda o processo sarcopênico e pode reverter a perda de força muscular, melhorar a qualidade de vida e prognóstico em cirróticos. Objetivo: O objetivo foi verificar os efeitos do exercício aeróbico presencial versus domiciliar sobre variáveis fadiga, força muscular respiratória e periférica, capacidade funcional e qualidade de vida em pacientes com cirrose compensada. Métodos: Os pacientes foram selecionados por conveniência, estratificados e randomizados em exercício presencial supervisionado (n=13) e exercício domiciliar sem supervisão diária (n=12). Os pacientes foram submetidos a um programa de exercícios físicos aeróbicos, com duração progressiva de 30 minutos a 1 hora, duas vezes por semana durante 12 semanas. Antes de iniciar o programa e a cada 4 semanas, todos os pacientes de ambos os grupos foram avaliados quanto à fadiga (escala de gravidade da fadiga), força muscular respiratória (Pimáx e Pemáx) e periférica (pico de torque do quadríceps concêntrico), capacidade funcional (distância caminhada de 6 minutos) e qualidade de vida (questionário Short Form-36 Health Survey). Resultados: O grupo presencial apresentou redução da fadiga (P<0,001), aumento da força muscular inspiratória (P<0,001), expiratória (P<0,001), e periférica (P<0,001), da DTC6 (P<0,001) e melhora da qualidade de vida. O grupo domiciliar não apresentou melhora significativa nessas variáveis. Conclusão: Um programa presencial de exercícios aeróbicos moderados em pacientes com cirrose compensada reduz a fadiga, melhora a capacidade funcional e qualidade de vida, aumenta força muscular respiratória e periférica. Os exercícios físicos domiciliares não provocam os mesmos efeitos adaptativos nesta população.

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BACKGROUND: Hepatopulmonary syndrome (HPS) is a complication associated with cirrhosis that may contribute to worsening exercise capacity and reduced survival after liver transplantation (LT). OBJECTIVE: To evaluate exercise capacity, complications and survival after LT in patients with cirrhosis and HPS and to compare these results with the results of patients with cirrhosis without HPS. METHODS: A prospective cohort study, consisting initially of 178 patients, of whom 90 underwent LT (42 with HPS and 48 without HPS). A previous evaluation consisted of the six-minute walk test (6MWT), an exercise test and manovacuometry. Those who underwent LT were evaluated for the mechanical ventilation time (MV), noninvasive ventilation (NIV) use, and survival two years after the procedure. In the statistical analysis, we used the Kolmogorov-Smirnov test, Student's t-test, the linear association square test, and the Kaplan-Meier survival curve. The data were analyzed with the SPSS 16.00 program and considered significant at P<0.05. RESULTS: The HPS group demonstrated a lower peak of oxygen consumption (VO2peak) (14.2±2.3 vs 17.6±2.6) P<0.001 and a shorter distance walked on the 6MWT (340.8±50.9 vs 416.5±91.4) P<0.001 before LT compared with the non-HPS group. The transplanted patients with HPS remained longer hours in MV (19.5±4.3 vs 12.5±3.3) P=0.02, required more NIV (12 vs 2) P=0.01, and had lower survival two years after the procedure (P=0.01) compared with the transplanted patients without HPS. CONCLUSION: Patients with HPS had worse exercise capacity before LT, more complications and shorter survival after this procedure than patients without HPS.

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ABSTRACT BACKGROUND: Hepatopulmonary syndrome (HPS) is a complication associated with cirrhosis that may contribute to worsening exercise capacity and reduced survival after liver transplantation (LT). OBJECTIVE: To evaluate exercise capacity, complications and survival after LT in patients with cirrhosis and HPS and to compare these results with the results of patients with cirrhosis without HPS. METHODS: A prospective cohort study, consisting initially of 178 patients, of whom 90 underwent LT (42 with HPS and 48 without HPS). A previous evaluation consisted of the six-minute walk test (6MWT), an exercise test and manovacuometry. Those who underwent LT were evaluated for the mechanical ventilation time (MV), noninvasive ventilation (NIV) use, and survival two years after the procedure. In the statistical analysis, we used the Kolmogorov-Smirnov test, Student's t-test, the linear association square test, and the Kaplan-Meier survival curve. The data were analyzed with the SPSS 16.00 program and considered significant at P<0.05. RESULTS: The HPS group demonstrated a lower peak of oxygen consumption (VO2peak) (14.2±2.3 vs 17.6±2.6) P<0.001 and a shorter distance walked on the 6MWT (340.8±50.9 vs 416.5±91.4) P<0.001 before LT compared with the non-HPS group. The transplanted patients with HPS remained longer hours in MV (19.5±4.3 vs 12.5±3.3) P=0.02, required more NIV (12 vs 2) P=0.01, and had lower survival two years after the procedure (P=0.01) compared with the transplanted patients without HPS. CONCLUSION: Patients with HPS had worse exercise capacity before LT, more complications and shorter survival after this procedure than patients without HPS.

RESUMO CONTEXTO: A síndrome hepatopulmonar (SHP) é uma complicação associada à cirrose que pode contribuir para piora da capacidade de exercício e menor sobrevida após o transplante hepático (TxH). OBJETIVO: Avaliar a capacidade de exercício, as complicações e a sobrevida após TxH em cirróticos com SHP e comparar com os resultados de cirróticos sem esse diagnóstico. MÉTODOS: Estudo de coorte prospectivo, composto inicialmente por 178 pacientes, dos quais 90 foram submetidos ao TxH (42 com SHP e 48 sem SHP). Foi realizada uma avaliação prévia composta pelo teste de caminhada dos seis minutos (TC6M), teste ergométrico e manovacuometria. Os submetidos ao TxH tiveram avaliados o tempo de ventilação mecânica (VM), uso de ventilação não invasiva (VNI), e a sobrevida dois anos após o procedimento. Na análise estatística utilizamos os testes de Kolmogorov-Smirnov, o teste t de Student, o teste do quadrado de associação linear, a curva de sobrevida de Kaplan Meier. Os dados foram analisados no programa SPSS 16.00 sendo considerado significativo P<0,05. RESULTADOS: O grupo SHP apresentou menor pico de consumo de oxigênio (VO2pico) (14,2±2,3 vs 17,6±2,6) P<0,001, e menor distância percorrida no TC6M (340,8±50,9 vs 416,5±91,4) P<0,001 antes do TxH. Os pacientes com SHP transplantados permaneceram mais horas em VM (19,5±4,3 vs 12,5±3,3) P=0,02, necessitaram mais de VNI (12 vs 2) P=0,01, e tiveram menor sobrevida dois anos após o procedimento (P=0,01). CONCLUSÃO: Pacientes com SHP apresentaram pior capacidade de exercício antes do TxH, mais complicações e menor sobrevida após a realização desse procedimento.

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BACKGROUND: Few studies have evaluated the effects of mechanical insufflation-exsufflation (MI-E) in subjects on mechanical ventilation. Therefore, this study aimed to evaluate the effectiveness of MI-E on airway mucus clearance among mechanically ventilated ICU subjects. METHODS: A randomized, parallel-group, open-label trial was conducted between June and November 2017 in a single, mixed ICU. Adult ICU subjects receiving mechanical ventilation for > 24 h with stable ventilatory and hemodynamic status were randomized to receive either standard respiratory physiotherapy alone (control group) or respiratory physiotherapy by using an MI-E device (intervention group). The primary outcome was the weight of aspirated airway mucus after study interventions. Secondary outcomes included variation in static lung compliance (ΔCL), airway resistance (ΔRaw), work of breathing (ΔWOB) in relation to the pre-intervention period, and hemodynamic and ventilator complications during the procedures. RESULTS: There were 90 subjects in each group. The mean ± SD weight of the aspirated airway mucus was higher in the intervention group than in the control group (2.42 ± 2.32 g vs 1.35 ± 1.56 g, P < .001). The ΔCL values in the intervention group were higher than those in the control group (1.76 ± 4.90 mL/cm H2O vs -0.57 ± 4.85 mL/cm H2O, P = .001). The ΔRaw and ΔWOB values were similar between the groups. No hemodynamic or ventilatory complications were observed. CONCLUSIONS: Among the general ICU subjects receiving mechanical ventilation, use of an MI-E device during respiratory physiotherapy resulted in a larger amount of airway mucus clearance than respiratory physiotherapy alone. (ClinicalTrials.gov registration NCT03178565.).

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Alcohol consumption accounts for 3.8% of annual global mortality worldwide, and the majority of these deaths are due to alcoholic liver disease (ALD), mainly alcoholic cirrhosis. ALD is one of the most common indications for liver transplantation (LT). However, it remains a complicated topic on both medical and ethical grounds, as it is seen by many as a "self-inflicted disease". One of the strongest ethical arguments against LT for ALD is the probability of relapse. However, ALD remains a common indication for LT worldwide. For a patient to be placed on an LT waiting list, 6 mo of abstinence must have been achieved for most LT centers. However, this "6-mo rule" is an arbitrary threshold and has never been shown to affect survival, sobriety, or other outcomes. Recent studies have shown similar survival rates among individuals who undergo LT for ALD and those who undergo LT for other chronic causes of end-stage liver disease. There are specific factors that should be addressed when evaluating LT patients with ALD because these patients commonly have a high prevalence of multisystem alcohol-related changes. Risk factors for relapse include the presence of anxiety or depressive disorders, short pre-LT duration of sobriety, and lack of social support. Identification of risk factors and strengthening of the social support system may decrease relapse among these patients. Family counseling for LT candidates is highly encouraged to prevent alcohol consumption relapse. Relapse has been associated with unique histopathological changes, graft damage, graft loss, and even decreased survival in some studies. Research has demonstrated the importance of a multidisciplinary evaluation of LT candidates. Complete abstinence should be attempted to overcome addiction issues and to allow spontaneous liver recovery. Abstinence is the cornerstone of ALD therapy. Psychotherapies, including 12-step facilitation therapy, cognitive-behavioral therapy, and motivational enhancement therapy, help support abstinence. Nutritional therapy helps to reverse muscle wasting, weight loss, vitamin deficiencies, and trace element deficiencies associated with ALD. For muscular recovery, supervised physical activity has been shown to lead to a gain in muscle mass and improvement of functional activity. Early LT for acute alcoholic hepatitis has been the subject of recent clinical studies, with encouraging results in highly selected patients. The survival rates after LT for ALD are comparable to those of patients who underwent LT for other indications. Patients that undergo LT for ALD and survive over 5 years have a higher risk of cardiorespiratory disease, cerebrovascular events, and de novo malignancy.

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ABSTRACT BACKGROUND: Fatigue is a common complaint in cirrhotic patients and may be considered a debilitating symptom with negative impact on quality of life. Research on its etiology and treatment has been hampered by the lack of relevant and reproducible measures of fatigue. OBJECTIVE: To evaluate the psychometric properties of the Fatigue Severity Scale (FSS) in cirrhotic patients and to correlate with depressive symptomatology and quality of life. METHODS: Cross-sectional study with a convenience sample of 106 cirrhotic patients, aged between 18 and 70 years, both genders, literate, pre and post liver transplantation in outpatient follow-up. Internal consistency, reproducibility, discriminant validity, criterion validity, construct validity, responsiveness criterion, depressive symptomatology and quality of life were evaluated through questionnaires between January and October 2015. RESULTS: The mean age was 54.75±9.9 years, 65.1% male and 32.1% of the sample had cirrhosis due to hepatitis C virus. The mean FSS score was 4.74±1.64. Cronbach's alpha was 0.93, and the Intraclass Correlation Coefficient was 0.905 (95% CI: 0.813-0.952). For discriminant validity, FSS differentiated scores from different groups (P=0.009) and presented a correlation with the Modified Fatigue Impact Scale (r=0.606, P=0.002). FSS correlated significantly and positively with depressive symptomatology and correlated negatively with the SF-36 domains for construct validity. For responsiveness, no significant changes were observed in the fatigue scores in the pre and post-liver transplantation periods (P=0.327). CONCLUSION: FSS showed good psychometric performance in the evaluation of fatigue in patients with cirrhosis. Fatigue presented a strong correlation with depressive symptomatology and quality of life.

RESUMO CONTEXTO: A fadiga é uma queixa comum em pacientes cirróticos e pode ser considerada um sintoma debilitante com impacto negativo na qualidade de vida. A investigação sobre a sua etiologia e tratamento tem sido dificultada pela falta de medidas relevantes e reprodutíveis da fadiga. OBJETIVO: Avaliar as propriedades psicométricas da Escala de Gravidade da Fadiga (FSS) em pacientes cirróticos e correlacionar com sintomatologia depressiva e qualidade de vida. MÉTODOS: Estudo transversal com amostra de conveniência de 106 pacientes cirróticos, com idade entre 18 e 70 anos, ambos os sexos, alfabetizados, pré e pós-transplante hepático em acompanhamento ambulatorial. Foram avaliados: consistência interna, reprodutibilidade, validade discriminante, validade de critério, validade de construto, critério de responsividade, sintomatologia depressiva e qualidade de vida através de questionários, entre janeiro e outubro de 2015. RESULTADOS: A média de idade foi 54,75±9,9 anos, 65,1% do sexo masculino e 32,1% da amostra apresentava cirrose pelo vírus da hepatite C. O escore médio no FSS foi de 4,74±1,64. O alfa de Cronbach foi de 0,93, e o coeficiente de correlação intraclasse foi de 0,905 (IC 95%: 0,813-0,952). Para validade discriminante, o FSS diferenciou escores de grupos distintos (P=0,009) e apresentou correlação com a Escala de Impacto de Fadiga Modificada (r=0,606, P=0,002). O FSS se correlacionou significativamente e positivamente com sintomatologia depressiva e, negativamente com os domínios SF-36 para a validade de construto. Para responsividade, não foram observadas alterações significativas nos escores de fadiga nos períodos de transplante pré e pós-fígado (P=0,327). CONCLUSÃO: O FSS mostrou bom desempenho psicométrico na avaliação da fadiga em pacientes com cirrose. A fadiga apresentou forte correlação com sintomatologia depressiva e qualidade de vida.

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OBJECTIVE: To compare mechanical ventilation time, need for non-invasive ventilation, length of intensive care unit stay, and hospital stay after liver transplant in cirrhotic patients with and with no diagnosis of hepatopulmonary syndrome. METHODS: This was a prospective cohort study with a convenience sample of 178 patients (92 with hepatopulmonary syndrome) who were diagnosed as alcoholic or hepatitis C virus cirrhosis. The statistical analysis included Kolmogorov-Smirnov test and Students t test. Data were analyzed using SPSS version 16.0, and p values <0.05 were considered significant. RESULTS: Out of 178 patients, 90 underwent transplant (48 with no hepatopulmonary syndrome). The Group diagnosed with Hepatopulmonary Syndrome had longer mechanical ventilation time (19.5±4.3 hours versus 12.5±3.3 hours; p=0.02), an increased need for non-invasive ventilation (12 versus 2; p=0.01), longer intensive care unit stay (6.7±2.1 days versus 4.6±1.5 days; p=0.02) and longer hospital stay (24.1±4.3 days versus 20.2±3.9 days; p=0.01). CONCLUSION: Cirrhotic patients Group diagnosed with Hepatopulmonary Syndrome had higher mechanical ventilation time, more need of non-invasive ventilation, as well as longer intensive care unit and hospital stay.

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BACKGROUND: Fatigue is a common complaint in cirrhotic patients and may be considered a debilitating symptom with negative impact on quality of life. Research on its etiology and treatment has been hampered by the lack of relevant and reproducible measures of fatigue. OBJECTIVE: To evaluate the psychometric properties of the Fatigue Severity Scale (FSS) in cirrhotic patients and to correlate with depressive symptomatology and quality of life. METHODS: Cross-sectional study with a convenience sample of 106 cirrhotic patients, aged between 18 and 70 years, both genders, literate, pre and post liver transplantation in outpatient follow-up. Internal consistency, reproducibility, discriminant validity, criterion validity, construct validity, responsiveness criterion, depressive symptomatology and quality of life were evaluated through questionnaires between January and October 2015. RESULTS: The mean age was 54.75±9.9 years, 65.1% male and 32.1% of the sample had cirrhosis due to hepatitis C virus. The mean FSS score was 4.74±1.64. Cronbach's alpha was 0.93, and the Intraclass Correlation Coefficient was 0.905 (95% CI: 0.813-0.952). For discriminant validity, FSS differentiated scores from different groups (P=0.009) and presented a correlation with the Modified Fatigue Impact Scale (r=0.606, P=0.002). FSS correlated significantly and positively with depressive symptomatology and correlated negatively with the SF-36 domains for construct validity. For responsiveness, no significant changes were observed in the fatigue scores in the pre and post-liver transplantation periods (P=0.327). CONCLUSION: FSS showed good psychometric performance in the evaluation of fatigue in patients with cirrhosis. Fatigue presented a strong correlation with depressive symptomatology and quality of life.

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ABSTRACT Objective To compare mechanical ventilation time, need for non-invasive ventilation, length of intensive care unit stay, and hospital stay after liver transplant in cirrhotic patients with and with no diagnosis of hepatopulmonary syndrome. Methods This was a prospective cohort study with a convenience sample of 178 patients (92 with hepatopulmonary syndrome) who were diagnosed as alcoholic or hepatitis C virus cirrhosis. The statistical analysis included Kolmogorov-Smirnov test and Students t test. Data were analyzed using SPSS version 16.0, and p values <0.05 were considered significant. Results Out of 178 patients, 90 underwent transplant (48 with no hepatopulmonary syndrome). The Group diagnosed with Hepatopulmonary Syndrome had longer mechanical ventilation time (19.5±4.3 hours versus 12.5±3.3 hours; p=0.02), an increased need for non-invasive ventilation (12 versus 2; p=0.01), longer intensive care unit stay (6.7±2.1 days versus 4.6±1.5 days; p=0.02) and longer hospital stay (24.1±4.3 days versus 20.2±3.9 days; p=0.01). Conclusion Cirrhotic patients Group diagnosed with Hepatopulmonary Syndrome had higher mechanical ventilation time, more need of non-invasive ventilation, as well as longer intensive care unit and hospital stay.

RESUMO Objetivo Comparar tempo de ventilação mecânica, necessidade de uso de ventilação não invasiva, tempo de permanência na unidade de terapia intensiva e tempo de hospitalização após transplante hepático em cirróticos com e sem diagnóstico de síndrome hepatopulmonar. Métodos Estudo de coorte prospectiva com amostra de conveniência composta por 178 pacientes (92 com síndrome hepatopulmonar) com diagnóstico de cirrose por álcool ou pelo vírus da hepatite C. A análise estatística foi realizada por meio do teste Kolmogorov-Smirnov e do teste t de Student. Os dados foram analisados pelo programa SPSS versão 16.0, e valores de p<0,05 foram considerados significantes. Resultados Dos 178 pacientes, 90 foram transplantados (48 sem síndrome hepatopulmonar). O Grupo com Síndrome Hepatopulmonar apresentou maior tempo de ventilação mecânica (19,5±4,3 horas versus 12,5±3,3 horas; p=0,02), maior necessidade de uso de ventilação não invasiva (12 versus 2; p=0,01), maior permanência na unidade de terapia intensiva (6,7±2,1 dias versus 4,6±1,5 dias; p=0,02) e maior tempo de hospitalização (24,1±4,3 dias versus 20,2±3,9 dias; p=0,01). Conclusão O Grupo com Síndrome Hepatopulmonar apresentou maiores tempo de ventilação mecânica, necessidade de uso de ventilação não invasiva, permanência na unidade de terapia intensiva e tempo de hospitalização.

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Introduction. Liver diseases influence musculoskeletal functions and may negatively affect the exercise capacity of patients with cirrhosis. Aim. To test the relationship between the six-minute walk test (6MWT), maximal inspiratory pressure (MIP), and exercise capacity (VO2peak) measures and the survival rate of patients with cirrhosis. Methods. This prospective cohort study consisted of 86 patients diagnosed with cirrhosis with the following aetiology: hepatitis C virus (HCV), hepatitis B virus (HBV), and/or alcoholic cirrhosis (AC). All patients were followed up for three years and submitted to the 6MWT, pressure measurements with a compound gauge, and an exercise test (VO2peak). Results. The survival analysis showed that the individuals who covered a distance shorter than 410 m during the 6MWT had a survival rate of 55% compared with a rate of 97% for the individuals who walked more than 410 m (p = 0.0001). Individuals with MIPs below -70 cmH2O had a survival rate of 62% compared with a rate of 93% for those with MIPs above -70 cmH2O (p = 0.0001). The patients with values below 17 mL/kg had a survival rate of 55% compared with a rate of 94% for those with values above 17 mL/kg (p = 0.0001). Conclusion. The 6MWT distance, MIP, and oxygen consumption are predictors of mortality in patients with cirrhosis.

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BACKGROUND: Fatigue is a common complaint in patients with liver disease and may be considered a disabling symptom, affecting their quality of life and mental health. The Brazilian version of the Fatigue Severity Scale showed sensitivity to assess fatigue in some populations, but has not been tested in cirrhotic individuals. OBJECTIVE: The aim of this study was to evaluate the reliability of the Fatigue Severity Scale and association with depression and quality of life in patients with liver cirrhosis. METHODS: A prospective cohort study where the same interviewer applied to 25 patients Fatigue Severity Scale questionnaires, Brazilian version of the Beck Depression Inventory II (BDI- II) and Brazilian version of the Short Form Health Survey II (SF-36 v.II). Evaluating the reliability of the Fatigue Severity Scale through internal consistency and reproducibility was conducted. RESULTS: Statistical analysis showed strong internal consistency (Cronbach's alpha = 0.917) and intraobserver reproducibility test, there was no significant difference between both moments (P=0.828). Fatigue Severity Scale was significantly associated with BDI- II (r=0.478; P=0.016) and quality of life in areas PF (r=-0.484; P=0.014), BP (r=-0.402; P=0.046) and GH (r=-0.406; P=0.044) and SF (r=-0.520; P=0.008). CONCLUSION: The Fatigue Severity Scale showed satisfactory reliability in evaluation of fatigue in cirrhotic and can be used as a tool for this purpose. Fatigue is related to depression and quality of life in the physical aspects domains, pain, general health and social aspects.

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BACKGROUND AND AIM: Physical exercise is a key part of rehabilitation programs in chronic obstructive pulmonary disease (COPD) patients, although it could modulates immune system responses by altering the cytokine profile of such individuals. Furthermore, the degree of severity of COPD could influence the inflammatory response induced by exercise. To evaluate the cytokine profile of individuals with different degrees of COPD in response to a 6-min walk test (6MWT). METHODS: Forty-one patients with COPD were classified according to the severity of the disease by Global Initiative for Chronic Obstructive Lung Disease method: moderate = 14 individuals; severe = 14 individuals; very severe = 13 individuals. Blood sample collection was performed in the subjects pre and post a 6MWT. Cytokine plasma levels were analyzed to determine the cytokine profile using a Cytometric Bead Array technique (Becton Dickinson, San Jose, CA, USA) assay in flow cytometry. RESULTS: A significant difference was observed in the interleukin (IL)-6 levels after test between very severe and severe groups (P = 0.036). Also, lower levels of IL-4 were observed in the severe group compared with the very severe and the moderate groups in the pretest (P = 0.029; P = 0.003, respectively), and different values between the moderate and severe groups in the post-test (P = 0.044). A significant time pre-post effect was found in the IL-4 levels on the very severe group (P = 0.046). CONCLUSION: After the 6MWT, a discrete inflammatory response was observed in COPD patients, independent of the degree of severity. The results concerning IL-4 and IL-6 levels can be indicative of an attempt to control inflammation after the 6MWT in COPD patients.

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INTRODUCTION: Hepatopulmonary syndrome (HPS) is characterized by a clinical triad of liver disease and/or portal hypertension, intrapulmonary vascular dilatation and abnormal arterial oxygenation. These conditions can worsen muscle strength, exercise capacity and functionality in the affected population. OBJECTIVE: The objective of this study was to compare exercise capacity, functional condition and respiratory muscle strength in cirrhotic patients diagnosed with HPS and cirrhotic patients without this diagnosis. MATERIAL AND METHODS: This cross-sectional study used a convenience sample consisting of 178 patients (92 patients with HPS and 86 patients without HPS) with a diagnosis of liver cirrhosis caused by either alcohol consumption or the hepatitis C virus (HCV). Peak oxygen consumption (VO2 peak) was used to verify exercise capacity, the six-minute walk test (6MWT) was used to test functionality, and manovacuometry was used to evaluate the strength of the respiratory muscles. The Kolmogorov-Smirnov test and Student's t-test were used for the statistical analysis. The data were analyzed using SPSS 16.00, and p < 0.05 was considered significant. RESULTS: The group of patients with the diagnosis of HPS exhibited a lower VO2 peak (14.2 ± 2.3 vs. 17.6 ± 2.6, p < 0.001), shorter distance walked in the 6MWT (340.8 ± 50.9 vs. 416.5 ± 91.4, p < 0.001), lower maximal inspiratory pressure (-49.1 ± 9.8 vs. -74.2 ± 13.9, p = 0.001) and lower maximum expiratory pressure (60.1 ± 12.2 vs. 76.8 ± 14.7, p = 0.001). CONCLUSION: The group of cirrhotic patients diagnosed with HPS exhibited lower values for VO2 peak, distance walked in the 6MWT and respiratory muscle strength than the cirrhotic patients not diagnosed with HPS.

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BACKGROUND: Liver diseases are responsible for metabolic disorders and loss of muscle mass and function that affect functional status and quality of life (QoL). OBJECTIVE: To compare exercise capacity, respiratory muscle strength, and QoL in liver transplant candidates with cirrhosis of the following etiologies: hepatitis C virus (HCV), hepatitis B virus (HBV), and alcoholic cirrhosis (AC). METHODS: Cross-sectional study comprising 86 patients divided into three groups: HCV (40 patients), HBV (14 patients), and AC (32 patients). Patients were evaluated using the Six-Minute Walk Test (6MWT), manometry, and the QoL questionnaire SF-36. RESULTS: The AC group showed the lowest performance in the 6MWT (meters) compared to the HBV and HCV groups (373.50 ± 50.48, 464.16 ± 32, and 475.94 ± 27.84, respectively, p=0.001). In the domains of the SF-36, the AC group had lower scores for functional capacity and physical limitations when compared to the HBV and HCV groups (p=0.001). In the comparison of respiratory muscle strength, the AC group had lower MIP (cmH2O) compared to the HBV and HCV groups (-65.54 ± 11.28, -71.61 ± 6.96, -82.44 ± 13.71, respectively, p=0.001). The MEP (cmH2O) in the AC group was also lower than in the HBV and HCV groups (65.13 ± 10.74, 82.44 ± 13.87, 83.44 ± 12.20, respectively, p=0.001). CONCLUSION: The AC group showed worse exercise capacity, respiratory muscle strength, and QoL compared to patients with HCV and HBV.

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CONTEXTUALIZAÇÃO: As doenças hepáticas são responsáveis pelas alterações metabólicas, perda da massa e função muscular que interferem na condição funcional e na qualidade de vida (QV). OBJETIVO: Comparar a capacidade ao exercício, a força muscular respiratória e a QV entre os pacientes com cirrose hepática, candidatos ao transplante de fígado, com as seguintes etiologias: hepatite vírus C (HCV), hepatite vírus B (HBV) e cirrose alcoólica (CA). MÉTODOS: Estudo transversal, composto por 86 pacientes, divididos em três grupos: HCV (40 pacientes), HBV (14 pacientes) e CA (32 pacientes). Os pacientes foram avaliados por meio do teste da caminhada de seis minutos (TC6min), manovacuometria e QV pelo questionário SF-36. RESULTADOS: O grupo CA apresentou menor distância percorrida no TC6min (metros) quando comparado com os grupos HBV e HCV (373,50±50,48; 464,16±32 e 475,94±27,84, respectivamente, p=0,001). Nos domínios do SF-36, o grupo CA apresentou menores escores na capacidade funcional e limitações por aspectos físicos quando comparado com os grupos HBV e HCV (p=0,001). Na comparação da força dos músculos respiratórios, o grupo CA apresentou menor PImáx (cmH2O) quando comparado com os grupos HBV e HCV (-65,54±11,28; -71,61±6,96; -82,44±13,71, respectivamente, p=0,001). A PEmáx (cmH2O) no grupo CA foi menor do que nos grupos HBV e HCV (65,13±10,74; 82,44±13,87; 83,44±12,20, respectivamente, p=0,001). CONCLUSÃO: O grupo CA demonstrou pior capacidade ao exercício, força muscular respiratória e QV quando comparado aos pacientes com HCV e HBV.

BACKGROUND: Liver diseases are responsible for metabolic disorders and loss of muscle mass and function that affect functional status and quality of life (QoL). OBJECTIVE: To compare exercise capacity, respiratory muscle strength, and QoL in liver transplant candidates with cirrhosis of the following etiologies: hepatitis C virus (HCV), hepatitis B virus (HBV), and alcoholic cirrhosis (AC). METHODS: Cross-sectional study comprising 86 patients divided into three groups: HCV (40 patients), HBV (14 patients), and AC (32 patients). Patients were evaluated using the Six-Minute Walk Test (6MWT), manometry, and the QoL questionnaire SF-36. RESULTS: The AC group showed the lowest performance in the 6MWT (meters) compared to the HBV and HCV groups (373.50±50.48, 464.16±32, and 475.94±27.84, respectively, p=0.001). In the domains of the SF-36, the AC group had lower scores for functional capacity and physical limitations when compared to the HBV and HCV groups (p=0.001). In the comparison of respiratory muscle strength, the AC group had lower MIP (cmH2O) compared to the HBV and HCV groups (-65.54±11.28, -71.61±6.96, -82.44±13.71, respectively, p=0.001). The MEP (cmH2O) in the AC group was also lower than in the HBV and HCV groups (65.13±10.74, 82.44±13.87, 83.44±12.20, respectively, p=0.001). CONCLUSION: The AC group showed worse exercise capacity, respiratory muscle strength, and QoL compared to patients with HCV and HBV.

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INTRODUÇÃO: A doença hepática crônica resulta em grande impacto funcional, causando perda de massa e função muscular com consequente redução da capacidade funcional. OBJETIVO: Avaliar e comparar a força muscular respiratória e a capacidade funcional dos candidatos ao transplante hepático que possuem classe B ou C segundo o Child-Pugh Score e correlacionar estas variáveis dentro de cada grupo. MÉTODOS: Estudo transversal, com amostra de conveniência composta por 35 pacientes, divididos em dois grupos a partir da pontuação obtida no Child-Pugh Score, sendo B (19 pacientes) e C (16 pacientes). Todos os indivíduos foram avaliados em um único momento, sendo mensuradas as pressões inspiratória máxima (PImáx) e expiratória máxima (PEmáx) e a distância percorrida no teste de caminhada de seis minutos (TC6M). RESULTADOS: Os indivíduos classificados com Child-Pugh Score B apresentaram maiores valores na PImáx (-86,05 ± 23,89 vs. -57,94 ± 14,14), p = 0,001, na PEmáx (84,16 ± 28,26 vs. 72,00 ± 16,94), p = 0,142, e na distância percorrida no TC6M (473,63 ± 55,276 vs. 376,13 ± 39,00), p = 0,001. Encontramos, ainda, correlação positiva entre os valores da PImáx e a distância percorrida no TC6M dentro grupo Child-Pugh Score B, r = 0,64 e p = 0,003. CONCLUSÃO: O progresso da doença hepática contribui para o surgimento de diversas complicações que, em conjunto, parecem contribuir para a redução da capacidade funcional dos indivíduos. Em nosso trabalho, isso ficou evidenciado pelo pior desempenho do grupo Child-Pugh Score C. Isto pode sugerir que a espera para o transplante hepático (TxH) pode agravar a capacidade funcional e a força muscular respiratória desses indivíduos.

INTRODUCTION: Chronic liver disease results in large functional impact, causing loss of muscle mass and function with consequent reduction of functional capacity. OBJECTIVE: To evaluate and compare the respiratory muscle strength and functional capacity of candidates for liver transplantation who are under Class B or C according to Child Pugh Score and to correlate these variables within each group. METHODS- Cross-sectional study with a convenience sample of 35 patients divided into two groups based on the score obtained in the Child Pugh Score B (19 patients) and Child Pugh Score C (16 patients). All subjects were evaluated in a single moment, and the maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP) as well as the distance walked during the 6-minute walk test (6MWT) were measured. RESULTS: Individuals classified with Child Pugh Score B showed higher values in the MIP (- 86.05 vs. 23.89 - 57.94 14.14), p = 0.001, in MEP (84.16 vs. 28.26 72.00 16 1994), p = 0.142, and the distance walked in 6MWT (473.63 vs 376.13 39.00 55.276), p = 0.001. We also found a positive correlation between the values of MIP and distance walked during 6MWT in group B of the Child Pugh Score, r = 0.64 and p = 0.003. CONCLUSION: The progress of liver disease contributes to the onset of several complications, which together appear to contribute to the reduction of functional capacity of individuals. In our study this was evidenced by the worse performance of Child Pugh score C group. This may suggest that the wait for liver transplantation (LTx) can worsen the functional capacity of these individuals.

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Liver diseases are responsible for metabolic and cardiorespiratory alterations. The objective of this paper is to correlate the maximal oxygen uptake (VO(2max)) and respiratory muscle strength and evaluating the quality of life in liver transplant candidates. Cross-sectional study consisted of 26 patients with cirrhosis who underwent maximal exercise testing, respiratory muscle strength and SF-36. There was a correlation of VO(2max) with MIP (r = 0.61) and low scores of quality of life. A correlation of VO(2max) to muscle strength and decreased quality of life in patients with liver disease.

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