Sex Differences in Prognosis of Heart Failure Due to Ischemic and Nonischemic Cardiomyopathy.

BACKGROUND: Limited research has explored sex-specific differences in death predictors of HF patients with ischemic (iCMP) and nonischemic (niCMP) cardiomyopathy. This study assessed sex differences in niCMP and iCMP prognosis. METHODS: We studied 7487 patients with HF between February 2017 and September 2020. Clinical features and echocardiographic findings were collected. We used Kaplan-Meier, Cox proportional hazard models, and chi-square scores of Cox regression to determine death predictors in women and men. RESULTS: The mean age was 64.3 ± 14.2 years, with 4417 (59%) males. Women with iCMP and niCMP exhibited a significantly higher mean age, higher mean left ventricular ejection fraction, and smaller left ventricular diastolic diameter than men. Over 2.26 years of follow-up, 325 (14.7%) women and 420 (15.7%) men, and 211 women (24.5%) and 519 men (29.8%) with niCMP (p = NS) and iCMP (p = 0.004), respectively, died. The cumulative incidence of death was higher in men with iCMP (log-rank p < 0.0001) but similar with niCMP. Cox regression showed chronic kidney disease, diabetes, stroke, atrial fibrillation, age, and myocardial infarction as the main predictors of death for iCMP in women and men. CONCLUSIONS: Women exhibited a better prognosis than men with iCMP, but similar for niCMP. Nevertheless, sex was not an independent predictor of death for both CMP.

Learning challenges in Physical Therapy, Speech-Language-Hearing Sciences, and Occupational Therapy undergraduate programs during the COVID-19 pandemic.

PURPOSE: COVID-19 posed numerous challenges to educational programs that had to quickly adapt to remote online learning (ROL) to ensure the continuity of health professional training over the pandemic. We aimed to assess the students' and professors' perceptions of the teaching-learning process in the Physical Therapy, Speech-Language-Hearing Sciences, and Occupational Therapy undergraduate programs at a Brazilian public university. METHODS: We used an electronic self-reported questionnaire with multiple-choice questions on a Likert scale ranged 1-5; higher the score, higher the level of agreement/importance/satisfaction. RESULTS: Most of undergraduate students and teachers had previous experience using information and communication technologies, and 85% stated their preference for in-person learning. Students expressed their appreciation for more active learning methodologies with clear objectives, accessible content, and visualization of abstract concepts. Regarding benefits and barriers, some similar perceptions were observed between students and teachers with ROL favoring time management, benefits in the teaching-learning process, satisfaction and motivation with the course content, and low attendance rates to general academic activities due to absent or poor access to technological resources. CONCLUSION: ROL is an alternative learning mode when the in-person classes cannot be carried out, as in the case of the COVID-19 pandemic. ROL is believed to be unfit to replace in-person learning, although it can complement the traditional classroom-based education in a hybrid model, respecting the nature of each program in the field of health that requires in-person practical training.

Validation of the Portuguese Version of the Kansas City Cardiomyopathy Questionnaire-12.

The Kansas City Cardiomyopathy Questionnaire-12 (KCCQ-12) is a simple, feasible, and sensitive questionnaire developed in English for assessing the health status (symptoms, function, and quality of life) of patients with heart failure (HF). We aimed to assess the internal consistency and construct validity of the Portuguese version of KCCQ-12. We administered the KCCQ-12, the Minnesota Living Heart Failure (MLHFQ), and the New York Heart Association (NYHA) classification by telephone. Internal consistency was assessed with Cronbach's Alpha (α-Cronbach) and construct validity with correlations to the MLHFQ and NYHA. Internal consistency was high (α-Cronbach = 0.92 for the Overall Summary score and 0.77-0.85 for the subdomains). Construct validity was supported by finding high correlations between the KCCQ-12 Physical Limitation and the Symptom Frequency domains with the physical domain of the MLHFQ (r = -0.70 and r = -0.76, p < 0.001 for both) and the Overall Summary scale with NYHA classifications (r = -0.72, p < 0.001). The Portuguese version of KCCQ-12 has high internal consistency and shows a convergent construct validity with other measures quantifying the health status of patients with chronic HF and can be used confidently in Brazil for research and clinical care.

Learning challenges in Physical Therapy, Speech-Language-Hearing Sciences, and Occupational Therapy undergraduate programs during the COVID-19 pandemic / Desafios de aprendizagem nos cursos de graduação em Fisioterapia, Fonoaudiologia e Terapia Ocupacional durante a pandemia de COVID-19

ABSTRACT Purpose COVID-19 posed numerous challenges to educational programs that had to quickly adapt to remote online learning (ROL) to ensure the continuity of health professional training over the pandemic. We aimed to assess the students' and professors' perceptions of the teaching-learning process in the Physical Therapy, Speech-Language-Hearing Sciences, and Occupational Therapy undergraduate programs at a Brazilian public university. Methods We used an electronic self-reported questionnaire with multiple-choice questions on a Likert scale ranged 1-5; higher the score, higher the level of agreement/importance/satisfaction. Results Most of undergraduate students and teachers had previous experience using information and communication technologies, and 85% stated their preference for in-person learning. Students expressed their appreciation for more active learning methodologies with clear objectives, accessible content, and visualization of abstract concepts. Regarding benefits and barriers, some similar perceptions were observed between students and teachers with ROL favoring time management, benefits in the teaching-learning process, satisfaction and motivation with the course content, and low attendance rates to general academic activities due to absent or poor access to technological resources. Conclusion ROL is an alternative learning mode when the in-person classes cannot be carried out, as in the case of the COVID-19 pandemic. ROL is believed to be unfit to replace in-person learning, although it can complement the traditional classroom-based education in a hybrid model, respecting the nature of each program in the field of health that requires in-person practical training.

RESUMO Objetivo O COVID-19 impôs inúmeros desafios aos programas educacionais que tiveram que se adaptar rapidamente ao aprendizado remoto on-line (ARO) para garantir a continuidade da formação dos profissionais de saúde durante a pandemia. O objetivo do estudo foi avaliar a percepção de alunos e professores sobre o processo ensino-aprendizagem dos cursos de graduação em Fisioterapia, Fonoaudiologia e Terapia Ocupacional de uma universidade pública brasileira. Métodos Foi utilizado um questionário eletrônico autoaplicável com questões de múltipla escolha em escala Likert de 1 a 5; quanto maior a pontuação, maior o nível de concordância/importância/satisfação. Resultados A maioria dos alunos de graduação e professores tinha experiência anterior no uso de tecnologias de informação e comunicação, e 85% afirmaram preferir o ensino presencial. Os alunos expressaram preferência por metodologias de aprendizagem mais ativas, com objetivos claros, conteúdo acessível e visualização de conceitos abstratos. Em relação aos benefícios e barreiras, algumas percepções semelhantes foram observadas entre alunos e professores com ARO favorecendo a gestão do tempo, benefícios no processo ensino-aprendizagem, satisfação e motivação com o conteúdo do curso e baixa frequência às atividades acadêmicas gerais por ausência ou dificuldade de acesso aos recursos tecnológicos. Conclusão O ARO pode ser uma modalidade alternativa de aprendizado quando as aulas presenciais não podem ser realizadas, como no caso da pandemia do COVID-19. Porém, o ARO é inadequado para substituir a aprendizagem presencial, embora possa complementar a educação presencial tradicional em um modelo híbrido, respeitando a natureza de cada programa na área da saúde que exige formação prática presencial.

KIDS SAVE LIVES: a narrative review of associated scientific production.

PURPOSE OF REVIEW: In sudden out-of-hospital cardiac arrest, bystander cardiopulmonary resuscitation (CPR) is one of the most important elements of the chain of survival. Since 2015, international health societies and associations have recognized KIDS SAVE LIVES (KSL) as an essential initiative on CPR principles dissemination among schoolchildren. Children can be potential multipliers of the CPR competencies by teaching families, relatives, and friends. This review aimed to determine the main CPR issues raised in the KSL-associated publications. RECENT FINDINGS: We found 12 Editorials, 9 Letters, 2 Special Reports, 4 Reviews, 2 Guidelines, 9 Original Articles and 17 Conference Presentations on KSL history, the schoolchildren CPR education, and KSL program implementation in several countries. In nine original studies, the main issues were instructors' and learners' CPR knowledge, skills, and retention, gender and physical aspects affecting CPR performance, types of KSL programs and new technologies to teach CPR. SUMMARY: The KSL-associated literature is limited to support KSL benefits. However, the KSL could potentially contribute to improve out-of-hospital CPR performed by lay people at earlier age in different countries. Children are an important target group to diffuse CPR principles ('CHECK-CALL-COMPRESS'), as they are curious, motivated and enjoy teaching others.

Home-based training program in patients with chronic heart failure and reduced ejection fraction: a randomized pilot study.

OBJECTIVES: We aimed to compare the effects of home-and center-based exercise training programs on functional capacity, inspiratory muscle strength, daily physical activity level, and quality of life (QoL) in patients with chronic heart failure (CHF) over a 12-week period. METHODS: This study included 23 patients with CHF (left ventricular ejection fraction 31±6%) randomized to a home-based (n=11) or center-based (n=12) program. Patients underwent 12 weeks of aerobic training (60%-70% heart rate reserve): walking for the home-based and supervised cycling for the center-based group, both combined with resistance training (50% of 1 maximum repetition). At baseline and after 12 weeks of training, we assessed cardiopulmonary test variables, 6-min walk test distance (6 MWD), steps/day with accelerometry, and QoL (Minnesota Living with Heart Failure questionnaire). Maximal inspiratory pressure and handgrip strength were measured at baseline and after 4, 8, and 12 weeks of training. ClinicalTrials.gov: NCT03615157. RESULTS: There were no adverse events during training in either group. The home- and center-based training groups obtained similar improvements in peak oxygen uptake, maximal ventilation, and 6 MWD. However, there were significant between-group differences: center-based training was more effective in improving maximal inspiratory pressure (p=0.042), number of steps/day (p=0.001), and QoL (p=0.039). CONCLUSIONS: Home-based training is safe and can be an alternative to improve the exercise capacity of patients with stable CHF. However, center-based training was superior in improving inspiratory muscle strength, QoL, and daily physical activity.

Home-based training program in patients with chronic heart failure and reduced ejection fraction: a randomized pilot study

OBJECTIVES: We aimed to compare the effects of home-and center-based exercise training programs on functional capacity, inspiratory muscle strength, daily physical activity level, and quality of life (QoL) in patients with chronic heart failure (CHF) over a 12-week period. METHODS: This study included 23 patients with CHF (left ventricular ejection fraction 31±6%) randomized to a home-based (n=11) or center-based (n=12) program. Patients underwent 12 weeks of aerobic training (60%-70% heart rate reserve): walking for the home-based and supervised cycling for the center-based group, both combined with resistance training (50% of 1 maximum repetition). At baseline and after 12 weeks of training, we assessed cardiopulmonary test variables, 6-min walk test distance (6 MWD), steps/day with accelerometry, and QoL (Minnesota Living with Heart Failure questionnaire). Maximal inspiratory pressure and handgrip strength were measured at baseline and after 4, 8, and 12 weeks of training. ClinicalTrials.gov: NCT03615157. RESULTS: There were no adverse events during training in either group. The home- and center-based training groups obtained similar improvements in peak oxygen uptake, maximal ventilation, and 6 MWD. However, there were significant between-group differences: center-based training was more effective in improving maximal inspiratory pressure (p=0.042), number of steps/day (p=0.001), and QoL (p=0.039). CONCLUSIONS: Home-based training is safe and can be an alternative to improve the exercise capacity of patients with stable CHF. However, center-based training was superior in improving inspiratory muscle strength, QoL, and daily physical activity.

Smoking load reduction is insufficient to downregulate miR-301b, a lung cancer promoter.

Several circulating miRNAs identified in the plasma of smokers have been implicated as promoters of nasopharyngeal and lung carcinoma. To investigate the plasma profile of miRNAs in subjects who reduces the number of smoked cigarettes and who quit after six months. We accompanied 28 individuals enrolled in a Smoking Cessation Program over 6 months. At Baseline, clinical characteristics, co-morbidities, and smoking history were similar among subjects. After 6 months, two groups were defined: who successfully quitted smoking (named "quitters", n = 18, mean age 57 years, 11 male) and who reduced the number of cigarettes smoked (20-90%) but failed to quit smoking (named "smokers", n = 10, mean age 52 years, 3 male). No significant clinical changes were observed between groups at baseline and after a 6-month period, however, quitters showed significant downregulations in seven miRNAs at baseline: miR-17 (- 2.90-fold, p = 0.029), miR-20a (- 3.80-fold, p = 0.021); miR-20b (- 4.71-fold, p = 0.027); miR-30a (- 3.95-fold, p = 0.024); miR-93 (- 3.63-fold, p = 0.022); miR-125a (- 1.70-fold, p = 0.038); and miR-195 (- 5.37-fold, p = 0.002), and after a 6-month period in 6 miRNAs: miR-17 (- 5.30-fold, p = 0.012), miR-20a (- 2.04-fold, p = 0.017), miR-20b (- 5.44-fold, p = 0.017), miR-93 (- 4.00-fold, p = 0.041), miR-101 (- 4.82-fold, p = 0.047) and miR-125b (- 3.65-fold, p = 0.025). Using time comparisons, only quitters had significant downregulation in miR-301b (- 2.29-fold, p = 0.038) after 6-month. Reductions in the number of smoked cigarettes was insufficient to change the plasma profile of miRNA after 6 months. Only quitting smoking (100% reduction) significantly downregulated miR-301b related to hypoxic conditions, promotion of cell proliferation, decreases in apoptosis, cancer development, and progression as increases in radiotherapy and chemotherapy resistance.

Smoking load reduction is insufcient to downregulate miR­301b, a lung cancer promoter

Abstract Several circulating miRNAs identified in the plasma of smokers have been implicated as promoters of nasopharyngeal and lung carcinoma. To investigate the plasma profile of miRNAs in subjects who reduces the number of smoked cigarettes and who quit after six months. We accompanied 28 individuals enrolled in a Smoking Cessation Program over 6 months. At Baseline, clinical characteristics, co-morbidities, and smoking history were similar among subjects. After 6 months, two groups were defined: who successfully quitted smoking (named "quitters", n = 18, mean age 57 years, 11 male) and who reduced the number of cigarettes smoked (20­90%) but failed to quit smoking (named "smokers", n = 10, mean age 52 years, 3 male). No significant clinical changes were observed between groups at baseline and after a 6-month period, however, quitters showed significant downregulations in seven miRNAs at baseline: miR-17 (− 2.90-fold, p = 0.029), miR-20a (− 3.80-fold, p = 0.021); miR-20b (− 4.71-fold, p = 0.027); miR-30a (− 3.95-fold, p = 0.024); miR-93 (− 3.63-fold, p = 0.022); miR-125a (− 1.70-fold, p = 0.038); and miR-195 (− 5.37-fold, p = 0.002), and after a 6-month period in 6 miRNAs: miR-17 (− 5.30-fold, p = 0.012), miR-20a (− 2.04-fold, p = 0.017), miR-20b (− 5.44-fold, p = 0.017), miR-93 (− 4.00-fold, p = 0.041), miR-101 (− 4.82-fold, p = 0.047) and miR-125b (− 3.65-fold, p = 0.025). Using time comparisons, only quitters had significant downregulation in miR-301b (− 2.29-fold, p = 0.038) after 6-month. Reductions in the number of smoked cigarettes was insufficient to change the plasma profile of miRNA after 6 months. Only quitting smoking (100% reduction) significantly downregulated miR-301b related to hypoxic conditions, promotion of cell proliferation, decreases in apoptosis, cancer development, and progression as increases in radiotherapy and chemotherapy resistance.

Efeitos do tabagismo e da cessação do tabagismo sobre os mecanismos de defesa das vias aéreas e expressão de MIRnas em sangue periférico de humanos / Effects of smoking and smoking cessation on defense mechanisms of the airways and expression of mirnas in human peripheral blood

OBJETIVO: Investigar o perfil de miRNAs em indivíduos participantes de um grupo de cessação ao tabagismo. MÉTODOS: Caracterizamos os mecanismos de defesa das vias aéreas por meio do transporte mucociliar (TMC) e avaliamos a expressão de miRNAs no plasma de indivíduos que participaram do Grupo de Cessação ao Tabagismo do Instituto Dante Pazzanese de Cardiologia (n=28, idade média 56 anos), após seis meses eles foram divididos em 2 grupos: aqueles que obtiveram sucesso na cessação (Cessadores, n=18, idade média 57 anos, 11 homens) e aqueles que reduziram a exposição ao cigarro (20-90%) porém continuaram fumando (Tabagistas, n=10, três homens). RESULTADOS: Na avaliação basal, as características clínicas, co-morbidades, histórico de tabagismo e carga tabágica foram semelhantes entre os grupos. Observamos que os tabagistas apresentaram TMC prolongado e que a cessação do tabagismo induziu à normalização do TMC. Comparando os Cessadores com os Tabagistas, sete miRNAs foram regulados negativamente: miR-17 (-2. 90-fold, p=0. 029), miR-20a (-3. 80-fold, p=0. 021); miR-20b (-4. 71-fold (p=0. 027); miR-30a (-3. 95-fold, p=0. 024); miR-93 (-3. 63-fold, p=0. 022); miR-125a (-1. 70-fold, p=0. 038); and miR-195 (-5. 37-fold, p=0. 002). Após seis meses, seis miRNAs foram diferentemente expressos com regulação negativa nos Cessadores em relação aos Tabagistas: miR-17 (-5. 30-x, p=0. 012), miR-20a (-2. 04f-x, p=0. 017), miR-20b (-5. 44-x, p=0. 017), miR-93 (-4. 00-x, p=0. 041), miR-101 (-4. 82-x, p=0. 047) e miR-125b (-3. 65-x, p=0. 025). Entretanto, somente o grupo de Cessadores apresentou após 6 meses, regulação negativa significantdo miR-301b (-2. 29-x, p=0. 038). CONCLUSÃO: Muitos MiRNAs que foram identificados no plasma de tabagistas têm sido associados ao desenvolvimento de carcinoma na sofaríngeo e câncer de pulmão. A redução da carga tabágica não foi suficiente para alterar esse perfil de expressão dos miRNAs. Somente a cessação do tabagismo promoveu regulação negativa do miR-301b que está relacionado com condições de hipóxia, de promoção da proliferação celular, da inibição do apoptose e aumento da resistência à quimioterapia. Descritores: microRNAs; Fumar; Abandono do hábito de fumar; Neoplasias pulmonares; Inflamação; Biomarcadores.

Risk factors for inspiratory muscle weakness in chronic heart failure

BACKGROUND: Chronic heart failure is commonly associated with inspiratory muscle weakness. However, few studies have investigated the risk factors for inspiratory muscle weakness in individuals with chronic heart failure and systolic dysfunction (left-ventricular ejection fraction [LVEF] <40%). METHODS: Seventy subjects were recruited in a cardiac center. We assessed clinical parameters, smoking history, peripheral muscle strength, pulmonary function, echocardiographic variables, and brain natriuretic peptide. The subjects were classified with inspiratory muscle weakness when the maximum inspiratory pressure was <70% of predicted values. RESULTS: Thirty-six subjects (51%) had inspiratory muscle weakness. The subjects with inspiratory muscle weakness and the subjects with no inspiratory muscle weakness were similar in age, sex, body mass index, medication use, and physical activity. However, the subjects with inspiratory muscle weakness had lower LVEF (P = .003), systolic blood pressure (P = .01), diastolic blood pressure (P = .042), quadriceps muscle strength (P = .02), lung function (P = .035), increased brain natriuretic peptide (P = .02), smoking history (P = .01), and pulmonary hypertension incidence (P = .03). Multivariate logistic regression analysis found a lower LVEF, increased smoking history, and lower systolic blood pressure as significant independent predictors for inspiratory muscle weakness. CONCLUSIONS: The combination of lower LVEF, lower systolic blood pressure, and smoking history predicted inspiratory muscle weakness. Patients with suspected inspiratory muscle weakness should be examined and, if inspiratory muscle weakness exists, then inspiratory muscle training should be provided. Reducing inspiratory muscle weakness has the potential to improve many of the deleterious effects of chronic heart failure. (AU)

Risk Factors for Inspiratory Muscle Weakness in Chronic Heart Failure.

BACKGROUND: Chronic heart failure is commonly associated with inspiratory muscle weakness. However, few studies have investigated the risk factors for inspiratory muscle weakness in individuals with chronic heart failure and systolic dysfunction (left-ventricular ejection fraction [LVEF] <40%). METHODS: Seventy subjects were recruited in a cardiac center. We assessed clinical parameters, smoking history, peripheral muscle strength, pulmonary function, echocardiographic variables, and brain natriuretic peptide. The subjects were classified with inspiratory muscle weakness when the maximum inspiratory pressure was <70% of predicted values. RESULTS: Thirty-six subjects (51%) had inspiratory muscle weakness. The subjects with inspiratory muscle weakness and the subjects with no inspiratory muscle weakness were similar in age, sex, body mass index, medication use, and physical activity. However, the subjects with inspiratory muscle weakness had lower LVEF (P = .003), systolic blood pressure (P = .01), diastolic blood pressure (P = .042), quadriceps muscle strength (P = .02), lung function (P = .035), increased brain natriuretic peptide (P = .02), smoking history (P = .01), and pulmonary hypertension incidence (P = .03). Multivariate logistic regression analysis found a lower LVEF, increased smoking history, and lower systolic blood pressure as significant independent predictors for inspiratory muscle weakness. CONCLUSIONS: The combination of lower LVEF, lower systolic blood pressure, and smoking history predicted inspiratory muscle weakness. Patients with suspected inspiratory muscle weakness should be examined and, if inspiratory muscle weakness exists, then inspiratory muscle training should be provided. Reducing inspiratory muscle weakness has the potential to improve many of the deleterious effects of chronic heart failure.

Predictors of oronasal breathing among obstructive sleep apnea patients and controls.

Oronasal breathing may adversely impact obstructive sleep apnea (OSA) patients either by increasing upper airway collapsibility or by influencing continuous positive airway pressure (CPAP) treatment outcomes. Predicting a preferential breathing route would be helpful to guide CPAP interface prescription. We hypothesized that anthropometric measurements but not self-reported oronasal breathing are predictors of objectively measured oronasal breathing. Seventeen OSA patients and nine healthy subjects underwent overnight polysomnography with an oronasal mask with two sealed compartments attached to independent pneumotacographs. Subjects answered questionnaires about nasal symptoms and perceived breathing route. Oronasal breathing was more common (P = <0.001) among OSA patients than controls while awake (62 ± 44 vs. 5 ± 6%) and during sleep (59 ± 39 vs. 25 ± 21%, respectively). Oronasal breathing was associated with OSA severity (P = 0.009), age (P = 0.005), body mass index (P = 0.044), and neck circumference (P = 0.004). There was no agreement between objective measurement and self-reported breathing route among OSA patients while awake (κ = -0.12) and asleep (κ = -0.02). The breathing route remained unchanged after 92% of obstructive apneas. These results suggest that oronasal breathing is more common among OSA patients than controls during both wakefulness and sleep and is associated with OSA severity and anthropometric measures. Self-reporting is not a reliable predictor of oronasal breathing and should not be considered an indication for oronasal CPAP.NEW & NOTEWORTHY Continuous positive airway pressure (CPAP) interface choice for obstructive sleep apnea (OSA) patients is often guided by nasal symptoms and self-reported breathing route. We showed that oronasal breathing can be predicted by anthropometric measurements and OSA severity but not by self-reported oronasal breathing. Self-reported breathing and nasal symptoms should not be considered for CPAP interface choice.

Severe pulmonary disease in an adult primary ciliary dyskinesia population in Brazil.

Primary Ciliary Dyskinesia (PCD) is underdiagnosed in Brazil. We enrolled patients from an adult service of Bronchiectasis over a two-year period in a cross-sectional study. The inclusion criteria were laterality disorders (LD), cough with recurrent infections and the exclusion of other causes of bronchiectasis. Patients underwent at least two of the following tests: nasal nitric oxide, ciliary movement and analysis of ciliary immunofluorescence, and genetic tests (31 PCD genes + CFTR gene). The clinical characterization included the PICADAR and bronchiectasis scores, pulmonary function, chronic Pseudomonas aeruginosa (cPA) colonization, exhaled breath condensate (EBC) and mucus rheology (MR). Forty-nine of the 500 patients were diagnosed with definite (42/49), probable (5/49), and clinical (2/49) PCD. Twenty-four patients (24/47) presented bi-allelic pathogenic variants in a total of 31 screened PCD genes. A PICADAR score > 5 was found in 37/49 patients, consanguinity in 27/49, LD in 28/49, and eight PCD sibling groups. FACED diagnosed 23/49 patients with moderate or severe bronchiectasis; FEV1 ≤ 50% in 25/49 patients, eight patients had undergone lung transplantation, four had been lobectomized and cPA+ was determined in 20/49. The EBC and MR were altered in all patients. This adult PCD population was characterized by consanguinity, severe lung impairment, genetic variability, altered EBC and MR.

Efeitos de um programa de treinamento domiciliar sobre a capacidade funcional e qualidade de vida de pacientes com insuficiência cardíaca crônica / Effects of a home training program on the functional capacity and quality of life of patients with chronic heart failure

INTRODUÇÃO: O treinamento físico melhora a capacidade funcional e a qualidade de vida em pacientes com insuficiência cardíaca crônica (IC). Entretanto, devido à baixa disponibilidade de centros de reabilitação cardíaca e limitações pessoais (custos de transporte, tempo, preferências), a inclusão e a adesão ao treinamento físico supervisionado são baixas, sendo proposto o treinamento domiciliar como alternativa. OBJETIVO: Comparar os efeitos de dois programas de treinamento: um domiciliar e um supervisionado ao longo de 12 semanas sobre a capacidade funcional, atividade física diária e qualidade de vida em pacientes com IC. MÉTODOS: Foram incluídos 23 pacientes com IC (classe funcional NYHA II e III, fração de ejeção do ventrículo esquerdo ≤40%) randomizados em Grupo Domiciliar (GD, n=11) ou Grupo Supervisionado (GS, n=12). Os pacientes realizaram, ao longo de 12 semanas exercícios aeróbios (60-70% da frequência cardíaca de reserva): caminhada para o GD e cicloergômetro para o GS combinados a exercícios resistidos (50% de uma repetição máxima). As variáveis-desfecho foram: pico de consumo de oxigênio e ventilação máxima do teste cardiopulmonar, distância percorrida no teste da caminhada de seis minutos, força muscular do quadríceps, pressão inspiratória máxima, número de passos/dia e qualidade de vida. RESULTADOS: Após 12 semanas,GD e GS apresentaram aumentos significantes (p=0,025) no pico de consumo de oxigênio (0,8 e 3,7 ml/kg/min, respectivamente), na ventilação máxima (11,5 e 15,6 l/min, respectivamente), na distância percorrida (40 e 25 m, respectivamente), na porcentagem de força muscular do quadríceps (21% e 11%, respectivamente) e na qualidade de vida avaliada por meio do questionário Minnesota Living with Heart Failure (1 e 13, respectivamente), sem diferenças entre GD e GS. Entretanto, o GS mostrou melhora na força muscular inspiratória (p=0,042), aumento no número de passos/dia (p=0,001) e no componente de saúde mental do questionário SF-36 (p=0,001) superior ao GD. CONCLUSÕES: O treinamento domiciliar pode ser uma alternativa ao treinamento supervisionado para melhorar a capacidade funcional e a qualidade de vida em pacientes com IC. Além desses benefícios, o treinamento supervisionado foi superior em aumentar a força muscular inspiratória, o número de passos/dia e melhorar os aspectos de saúde mental em pacientes com IC. (AU)

Influence of air pollution on airway inflammation and disease activity in childhood-systemic lupus erythematosus.

Exposure to fine particles may trigger pulmonary inflammation/systemic inflammation. The objective of this study was to investigate the association between daily individual exposure to air pollutants and airway inflammation and disease activity in childhood-onset systemic lupus erythematosus (cSLE) patients. A longitudinal panel study was carried out in 108 consecutive appointments with cSLE patients without respiratory diseases. Over four consecutive weeks, daily individual measures of nitrogen dioxide (NO2), fine particulate matter (PM2.5), ambient temperature, and humidity were obtained. This cycle was repeated every 2.5 months along 1 year, and cytokines of exhaled breath condensate-EBC [interleukins (IL) 6, 8, 17 and tumoral necrose factor-α (TNF-α)], fractional exhaled NO (FeNO), and disease activity parameters were collected weekly. Specific generalized estimation equation models were used to assess the impact of these pollutants on the risk of Systemic Lupus Erythematous Disease Activity Index 2000 (SLEDAI-2K) ≥ 8, EBC cytokines, and FeNO, considering the fixed effects for repetitive measurements. The models were adjusted for inflammatory indicators, body mass index, infections, medication, and weather variables. An IQR increase in PM2.5 4-day moving average (18.12 µg/m3) was associated with an increase of 0.05 pg/ml (95% CI 0.01; 0.09, p = 0.03) and 0.04 pg/ml (95% CI 0.02; 0.06, p = 0.01) in IL-17 and TNF-α EBC levels, respectively. Additionally, a short-term effect on FeNO was observed: the PM2.5 3-day moving average was associated with a 0.75 ppb increase (95% CI 0.38; 1.29, p = 0.03) in FeNO. Also, an increase of 1.47 (95% CI 1.10; 1.84) in the risk of SLEDAI-2K ≥ 8 was associated with PM2.5 7-day moving average. Exposure to inhalable fine particles increases airway inflammation/pulmonary and then systemic inflammation in cSLE patients.

Is there any benefit using low-intensity inspiratory and peripheral muscle training in heart failure? A randomized clinical trial.

BACKGROUND: Inspiratory and peripheral muscle training improves muscle strength, exercise tolerance, and quality of life in patients with chronic heart failure (HF). However, studies investigating different workloads for these exercise modalities are still lacking. OBJECTIVE: To examine the effects of low and moderate intensities on muscle strength, functional capacity, and quality of life. DESIGN: A randomized controlled trial. METHODS: Thirty-five patients with stable HF (aged >18 years, NYHA II/III, LVEF <40%) were randomized to: non-exercise control group (n = 9), low-intensity training group (LIPRT, n = 13, 15% maximal inspiratory workload, and 0.5 kg of peripheral muscle workload) or moderate-intensity training group (MIPRT, n = 13, 30% maximal inspiratory workload and 50% of one maximum repetition of peripheral muscle workload). The outcomes were: respiratory and peripheral muscle strength, pulmonary function, exercise tolerance by the 6-minute walk test, symptoms based on the NYHA functional class, and quality of life using the Minnesota Living with Heart Failure Questionnaire. RESULTS: All groups showed similar quality-of-life improvements. Low and moderate intensities training programs improved inspiratory muscle strength, peripheral muscle strength, and walking distance. However, only moderate intensity improved expiratory muscle strength and NYHA functional class in HF patients. CONCLUSIONS: The low-intensity inspiratory and peripheral resistance muscle training improved inspiratory and peripheral muscle strength and walking distance, demonstrating that LIPRT is an efficient rehabilitation method for debilitated HF patients. In addition, the moderate-intensity resistance training also improved expiratory muscle strength and NYHA functional class in HF patients.