Predictors of Post-COVID-19 Functional Status Scale in Hospitalized Patients Recovering From SARS-CoV-2 Infection

OBJECTIVE

The study aimed to investigate whether peripheral and inspiratory muscle strength and architecture, functional capacity, functional mobility, fatigue, and health-related quality of life are predictors of the Post-COVID-19 Functional Status Scale score in patients with post-COVID-19 syndrome who were hospitalized.

DESIGN

A cross-sectional study included 69 patients (53.3 ± 13.2 yrs, 36 men) with post-COVID-19 syndrome. The following outcomes were assessed: peripheral (dynamometry) and inspiratory (manovacuometry) muscle strength, muscle architecture (ultrasound), functional capacity (six-minute walk test), functional mobility (Timed Up and Go), fatigue (Functional Assessment of Chronic Illness Therapy), health-related quality of life (36-item Short-Form Health Survey), and functional status (Post-COVID-19 Functional Status scale).

RESULTS

Functional mobility (β = 0.573, P < 0.001), vastus intermedius echogenicity (β = -0.491, P = 0.001), length of stay (β = 0.349, P = 0.007), and female sex (β = 0.415, P = 0.003) influenced the Post-COVID-19 Functional Status Scale.

CONCLUSIONS

Functional mobility, muscle quality of the vastus intermedius, length of stay, and female sex influence the Post-COVID-19 Functional Status Scale score in this population. It is noteworthy that functional mobility is an independent predictor of Post-COVID-19 Functional Status Scale.

Effects of multimodal exercise program on postural balance in patients with chronic obstructive pulmonary disease: study protocol for a randomized controlled trial

BACKGROUND

Evidence has shown that patients with chronic obstructive pulmonary disease present significant deficits in the control of postural balance when compared to healthy subjects. In view of this, it is pertinent to investigate the effects of different therapeutic strategies used alone or in association with pulmonary rehabilitation with the potential to improve postural balance and other outcomes with clinical significance in patients with chronic obstructive pulmonary disease. This study will investigate the effects of an 8-week (short-term) multimodal exercise program [inspiratory muscle training (IMT) plus neuromuscular electrical stimulation (NMES)] on postural balance in patients with chronic obstructive pulmonary disease enrolled in a pulmonary rehabilitation program compared to individualized addition of IMT or NMES to pulmonary rehabilitation or standard pulmonary rehabilitation.

METHODS

This is a randomized, single-blind, 4-parallel-group trial. Forty patients with chronic obstructive pulmonary disease will be included prospectively to this study during a pulmonary rehabilitation program. Patients will be randomly assigned to one of four groups: multimodal exercise program (IMT + NMES + pulmonary rehabilitation group) or (IMT + pulmonary rehabilitation group) or (NMES + pulmonary rehabilitation group) or standard pulmonary rehabilitation group. Patients will receive two sessions per week for 8 weeks. The primary outcome will be static postural balance and secondary outcomes will include as follows: static and dynamic postural balance, fear of falling, muscle strength and endurance (peripheral and respiratory), functional capacity, health-related quality of life, muscle architecture (quadriceps femoris and diaphragm), and laboratory biomarkers.

DISCUSSION

This randomized clinical trial will investigate the effects of adding of short-term multimodal exercise program, in addition to pulmonary rehabilitation program, in postural balance in patients with chronic obstructive pulmonary disease enrolled in a pulmonary rehabilitation. Furthermore, this randomized control trial will enable important directions regarding the effectiveness of short-term intervention as part of the need to expand the focus of pulmonary rehabilitation to include balance management in chronic obstructive pulmonary disease patients which will be generated.

TRIAL REGISTRATION

ClinicalTrials.gov NCT04387318. Registered on May 13, 2020.

Relationship of pharyngeal transition time and presence of residue with dyspnea and lung function in chronic obstructive pulmonary disease

PURPOSE

To relate pharyngeal transit time and the presence of residues with dyspnea and lung function in individuals with Chronic Obstructive Pulmonary Disease COPD.

METHODS

Study conducted with 19 adults (11 men, 8 women) with a clinical and spirometric diagnosis of COPD and a mean age of 63.8 years (SD = 9.3). Data collection was performed using the COPD Assessment Test (CAT) questionnaire, the modified Medical Research Council scale (mMRC) and a digital manovacuometer, to characterize the impact of the disease on the individual, dyspnea and lung function. The data related to pharyngeal transit time and pharyngeal residue were collected through the analysis of videofluoroscopic images performed by three blinded judges.

RESULTS

No significant relationship was found between pharyngeal transit time (PTT) with lung function (r = -0.71), pharyngeal residue and dyspnea (r = -0.06). PTT, when compared to normality, was increased.

CONCLUSION

Individuals with COPD, regardless of the severity of the disease, showed no association between PTT and pharyngeal residue and dyspnea and lung function.

Estimulação elétrica funcional associada ao treinamento combinado pós-CRM: ensaio clínico randomizado

RESUMO Os efeitos da adição da estimulação elétrica funcional (EEF) ao treinamento aeróbico e resistido (treino combinado) de curto prazo em pacientes submetidos à cirurgia de revascularização do miocárdio (CRM) ainda não foram estabelecidos. O objetivo do presente estudo é avaliar o impacto da adição da EEF ao treino combinado no fluxo arterial periférico, na capacidade funcional e na qualidade de vida de pacientes pós-CRM participantes de um programa de reabilitação cardíaca - Fase II. Trata-se de um ensaio clínico randomizado, duplo cego, composto por 17 pacientes (54,8±10,5 anos, 12 homens) randomizados ou em grupo intervenção (GI, n=8,) submetido à EEF no músculo quadríceps associada ao treino combinado, ou em grupo sham (GS, n=9), que realizou a EEF sham em associação ao treino combinado. Os desfechos avaliados foram: fluxo arterial periférico (índice tornozelo-braquial), capacidade funcional (distância percorrida no teste de caminhada de seis minutos - DTC6M) e qualidade de vida (questionário MacNew). Na comparação entre os grupos, o aumento do índice tornozelo-braquial (GI: 0,14±0,08 mmHg vs. GC: 0,05±0,04 mmHg; p=0,020) e do escore do domínio global do questionário MacNew (GI: 1,1±0,3 pontos vs. GC: 0,6±0,4 pontos; p=0,020) foi maior no GI. Entretanto, não foi observada diferença entre os grupos para a DTC6M (GI: 130,9±73,7 m vs. GS: 73,7±32,6 m; p=0,072). A adição da EEF, durante curto período, potencializou os efeitos do exercício aeróbico e resistido sobre o fluxo arterial periférico e a qualidade de vida em pacientes pós CRM em Fase II da reabilitação cardíaca.

Influence of inspiratory muscle strength on exercise capacity before and after cardiac rehabilitation

Background/Aims

Coronary artery bypass grafting is a complex procedure that triggers a series of clinical and functional complications. The reduction of inspiratory muscle strength that persists during the late postoperative period has been suggested as an important determinant of functional capacity after coronary artery bypass grafting. The aim of this study was to investigate whether inspiratory muscle strength, functional capacity and quality of life are determinants of exercise capacity before and after a short-term phase II cardiac rehabilitation programme in patients who have had coronary artery bypass graft surgery.

Methods

A prospective quasi-experimental study was undertaken with 20 patients who had recevied coronary artery bypass surgery. All patients completed a short-term, moderate-to-high intensity inspiratory muscle training programme, followed by aerobic and resistance exercise, two times a week for 12 weeks, totalling 24 sessions, under the direct supervision of a physical therapist.

Results

Pre-intervention, peak oxygen consumption (peak VO2) was associated with maximum inspiratory pressure (β=0.037; 95% confidence interval 0.01–0.06; P=0.002). Post-intervention, peak VO2 was associated with maximum inspiratory pressure (β=0.03; 95% confidence interval 0.007–0.053; P=0.014) and the 6-Minute Walk Test (β=0.007; 95% confidence interval, 0.001–0.013; P=0.024).

Conclusions

Inspiratory muscle strength influences exercise capacity before and after a short-term cardiac rehabilitation programme in patients who have had coronary artery bypass graft surgery.

Health status can predict diaphragmatic muscle thickness in COPD: pilot study

Abstract Introduction: Among the systemic implications of chronic obstructive pulmonary disease (COPD) there are changes in the diaphragm and impact on health status. However, there are few studies on the possible relationship between these variables, and whether health status could predict diaphragmatic muscle thickness (DMT). Objective: To investigate whether there is a relationship between DMT and the prognostic mortality index Body Mass-Index, Airway Obstruction, Dyspnea and Exercise Capacity (BODE), dyspnea and health status, and to investigate whether health status can predict DMT in patients with COPD entering a pulmonary rehabilitation program. Methods: This is a pilot study with a cross-sectional design. Diaphragmatic muscle thickness was evaluated using ultrasound; health status through the COPD Assessment Test (CAT); the sensation of dyspnea by the modified Medical Research Council scale; and mortality, using the BODE index. Results: The sample consisted of 13 patients (68.69 ± 9.3 years) classified as having moderate to severe COPD. There was a strong and inverse correlation between diaphragmatic muscle thickness and health status (r = -0.735; p = 0.004). Simple regression analysis demonstrated that health status influenced diaphragmatic muscle thickness (β = -0.002; IC 95% - 0.004 to -0.001; p = 0.004), explaining 49% of the variance. However, no correlations were observed between diaphragmatic muscle thickness with dyspnea (r = 0.005; p = 0.985) or with the BODE mortality index (r = -0.219; p = 0.472). Conclusion: This pilot study demonstrated a strong inverse correlation between health status and DMT. In addition, health status was able to predict DMT in patients with COPD.

Acute effect of passive cycling exercise on serum levels of interleukin-8 and interleukin-10 in mechanically ventilated critically ill patients

Background/aims

A growing body of evidence has demonstrated that early mobilisation is beneficial for patients in the intensive care unit. The aim of this prospective study was to investigate the acute effect of an early passive cycling exercise session on serum interleukin-8 and interleukin-10 levels in critically ill patients.

Methods

A total of 11 haemodynamically stable and deeply sedated (Richmond Agitation and Sedation Scale-4) adult patients within the first 48 hours of mechanical ventilation received a single 20-minute session of passive cycle ergometer. Serum interleukin-8 and interleukin-10 levels were measured at baseline, immediately after the intervention and 60 minutes after the intervention.

Findings

Interleukin-8 levels decreased significantly 60 minutes after the passive cycle ergometer session compared to baseline (P=0.001). The serum levels of interleukin-10 increased immediately after the end of the 20 minutes and at 60 minutes after the intervention (P<0.001).

Conclusions

A single 20-minute session of passive cycle ergometer seems to have a positive effect on the inflammatory response in critically ill patients.

Efeitos do exercício passivo precoce em cicloergômetro na espessura muscular do quadríceps femoral de pacientes críticos: estudo-piloto randomizado controlado

RESUMO O objetivo deste estudo foi avaliar os efeitos do exercício passivo precoce em cicloergômetro na espessura muscular (EM) do quadríceps femoral (EMQ) de pacientes críticos admitidos em uma Unidade de Terapia Intensiva (UTI) de um hospital universitário terciário. O método utilizado foi um estudo-piloto randomizado controlado conduzido em uma amostra de 24 pacientes (51±18,11 anos, 16 do sexo masculino), com 24 a 48 horas de ventilação mecânica (VM), aleatoriamente divididos em dois grupos: grupo-controle (n=12), que recebeu a fisioterapia convencional; e grupo-intervenção (n=12), que recebeu o exercício passivo em cicloergômetro, uma vez ao dia, durante o período de sete dias do protocolo, em adição à fisioterapia convencional. A EMQ foi mensurada através da ultrassonografia. A primeira medida ultrassonográfica foi realizada entre as primeiras 48 horas de VM e a segunda ao término do protocolo. Não houve diferenças significativas na EMQ esquerda (27,29±5,86mm vs. 25,95±10,89mm; p=0,558) e direita (24,96±5,59mm vs 25,9±9,21mm; p=0,682) do grupo-controle e na EMQ esquerda (27,2±7,38mm vs 29,57±7,89mm; p=0,299) e direita (26,67±8,16mm vs 28,65±8,04mm; p=0,381) do grupo-intervenção. Na comparação entre os grupos, não houve alterações significativas em relação à EMQ esquerda (3,61±1,07mm; p=0,248) e a EMQ direita (2,75±0,85mm; p=0,738). Os resultados deste estudo-piloto demonstraram que a aplicação precoce do exercício passivo em cicloergômetro não promoveu mudanças significativas na espessura da camada muscular avaliada. No entanto, nossos achados sinalizam que a fisioterapia convencional foi capaz de preservar a EMQ de pacientes críticos admitidos em UTI.

Moderate-to-high intensity inspiratory muscle training improves the effects of combined training on exercise capacity in patients after coronary artery bypass graft surgery: A randomized clinical trial

BACKGROUND

The effects of adding moderate-to-high intensity inspiratory muscle training (IMT) to short-term aerobic and resistance exercise (combined training [CT]), after coronary artery bypass grafting (CABG) are not established. This study aimed to determine the effects of moderate-to-high intensity IMT + CT on exercise capacity, respiratory muscle strength, inspiratory muscle endurance, quality of life (QoL), and laboratory biomarkers in patients after CABG who were participants of a phase II cardiac rehabilitation program.

METHODS

Twenty-four patients were randomly assigned to either the IMT + CT group (n = 12), who performed moderate-to-high intensity IMT with CT or the sham-IMT + CT group (n = 12). Patients completed two sessions per week for 12 weeks. Each patient underwent a cardiopulmonary exercise test, six-minute walk test (6MWT), respiratory muscle strength and endurance evaluation, QoL questionnaire, and serum advanced oxidation protein products, ferric reducing antioxidant power [FRAP], nitrate/nitrate, and high-sensitivity C-reactive protein, before and after the 12-week intervention.

RESULTS

The IMT + CT group showed significantly greater improvements in peak oxygen uptake (1.3 mL∙kg^-1∙min^-1; 95% confidence interval [95% CI], 0.5 to 2.2), distance covered during the 6MWT (78.8 m; 95% CI, 28.1 to 129.5), maximal inspiratory pressure (23.0 cmH₂O; 95% CI, 9.3 to 36.7), QoL (-15.1 points; 95% CI, -26.9 to -3.3), and FRAP (83.7 μmol/L; 95% CI, 20.2 to 147.1) compared to the sham-IMT + CT group as a result of the intervention.

CONCLUSIONS

Short-term moderate-to-high intensity IMT with CT provided additional benefits in exercise capacity, inspiratory muscle strength, QoL, and antioxidant profile in patients after CABG. Trial Registration clinicaltrials.gov Identifier: NCT02885077.

Endurance muscular inspiratória em indivíduos obesos e eutróficos

RESUMO O objetivo deste estudo foi comparar a endurance muscular inspiratória e as respostas hemodinâmicas de indivíduos obesos e eutróficos. Trata-se de um estudo transversal com amostra composta por 20 indivíduos obesos (31±6 anos, 10 homens, 37,5±4,7 kg/m2) e 20 indivíduos eutróficos (29±8 anos, 10 homens, 23,2±1,5 kg/m2). A força muscular inspiratória e expiratória foi mensurada por manovacuometria, através da determinação da pressão inspiratória máxima e da pressão expiratória máxima. A endurance muscular inspiratória foi determinada por meio de exercício inspiratório com carga progressiva, iniciado com carga de 50% da pressão inspiratória máxima por 3 minutos, seguidos de incremento de 10% a cada 3 minutos até que o indivíduo fosse incapaz de continuar o teste. Verificou-se que os indivíduos obesos (470 ± 326 seg) apresentaram endurance muscular inspiratória reduzida em comparação com os eutróficos (651 ± 215 seg). A força muscular inspiratória e expiratória não diferiu entre os grupos. O teste de exercício progressivo induziu aumento da pressão arterial sistólica, diastólica e média e da frequência cardíaca, semelhante em indivíduos obesos e eutróficos. Foi possível concluir que embora a endurance muscular inspiratória de indivíduos obesos seja menor que a de eutróficos, as respostas hemodinâmicas induzidas pelo teste de endurance muscular inspiratória foram semelhantes nos dois grupos.

Acute clinical manifestations in toxic smoke inhalation victims: systematic review of observational studies

Abstract Introduction: Lung injuries from toxic smoke inhalation are the main causes of death in fire victims; however, information regarding the acute effects on the respiratory system after smoke inhalation and its constituents in closed environments are still scarce in literature. Objective: To investigate the acute clinical manifestations observed in victims of smoke inhalation during enclosed-space fires by means of systematic review. Methods: A systematic search was conducted in the following databases: MEDLINE (via PubMed), Lilacs, Scopus and Web of Science. There were no appliedrestrictions in terms of thepublication date. In addition, a manual search was performed on the references of published studies. Observational studies assessing the prevalence of acute clinical manifestations in victims of toxic smoke inhalation in closed environments were included. Results: Of the 4,603 articles identified, eight were included, comprising a total of 233 patients. The signs and symptoms were identified and ranked according to frequency. Dyspnea (58.80%, six studies), carbonaceous sputum (54.51%, four studies), hoarseness (39.91%, three studies), wheezing (34.33%, five studies) and sore throat (33.90%, two studies) were the most frequent acute clinical manifestations of smoke inhalation. Besides these, chest pain and pulmonary edema were observed, respectively in 13.30%, 5.15% of the studies. Conclusion: The results suggest that dyspnea, carbonaceous sputum, hoarseness, wheezing and sore throat were the most frequent acute clinical manifestations in victims of smoke inhalation. Further studies of a higher level of evidence and greater methodological rigor are required.

Effects that passive cycling exercise have on muscle strength, duration of mechanical ventilation, and length of hospital stay in critically ill patients: a randomized clinical trial

Objective

To evaluate the effects that passive cycling exercise, in combination with conventional physical therapy, have on peripheral muscle strength, duration of mechanical ventilation, and length of hospital stay in critically ill patients admitted to the ICU of a tertiary care university hospital.

Methods

This was a randomized clinical trial involving 38 patients (≥ 18 years of age) on mechanical ventilation who were randomly divided into two groups: control (n = 16), receiving conventional physical therapy; and intervention (n = 22), receiving conventional physical therapy and engaging in passive cycling exercise five days per week. The mean age of the patients was 46.42 ± 16.25 years, and 23 were male. The outcomes studied were peripheral muscle strength, as measured by the Medical Research Council scale, duration of mechanical ventilation, and length of hospital stay.

Results

There was a significant increase in peripheral muscle strength (baseline vs. final) in both groups (control: 40.81 ± 7.68 vs. 45.00 ± 6.89; and intervention: 38.73 ± 11.11 vs. 47.18 ± 8.75; p < 0.001 for both). However, the range of increase in strength was higher in the intervention group than in the control group (8.45 ± 5.20 vs. 4.18 ± 2.63; p = 0.005). There were no significant differences between the groups in terms of duration of mechanical ventilation or length of hospital stay.

Conclusions

The results suggest that the performance of continuous passive mobilization on a cyclical basis helps to recover peripheral muscle strength in ICU patients. (ClinicalTrials.gov Identifier: NCT01769846 [http://www.clinicaltrials.gov/]).

Effects of positive expiratory pressure on pulmonary clearance of aerosolized technetium-99m-labeled diethylenetriaminepentaacetic acid in healthy individuals

ABSTRACT Objective: To evaluate the effects of positive expiratory pressure (PEP) on pulmonary epithelial membrane permeability in healthy subjects. Methods: We evaluated a cohort of 30 healthy subjects (15 males and 15 females) with a mean age of 28.3 ± 5.4 years, a mean FEV1/FVC ratio of 0.89 ± 0.14, and a mean FEV1 of 98.5 ± 13.1% of predicted. Subjects underwent technetium-99m-labeled diethylenetriaminepentaacetic acid (99mTc-DTPA) radioaerosol inhalation lung scintigraphy in two stages: during spontaneous breathing; and while breathing through a PEP mask at one of three PEP levels-10 cmH2O (n = 10), 15 cmH2O (n = 10), and 20 cmH2O (n = 10). The 99mTc-DTPA was nebulized for 3 min, and its clearance was recorded by scintigraphy over a 30-min period during spontaneous breathing and over a 30-min period during breathing through a PEP mask. Results: The pulmonary clearance of 99mTc-DTPA was significantly shorter when PEP was applied-at 10 cmH2O (p = 0.044), 15 cmH2O (p = 0.044), and 20 cmH2O (p = 0.004)-in comparison with that observed during spontaneous breathing. Conclusions: Our findings indicate that PEP, at the levels tested, is able to induce an increase in pulmonary epithelial membrane permeability and lung volume in healthy subjects.

Avaliação da função pulmonar em pacientes com câncer submetidos à quimioterapia

Justificativa e Objetivo: Alguns agentes neoplásicos usados no tratamento do câncer (CA) causam toxicidade pulmonar e outros importantes efeitos adversos, dessa forma, o presente estudo objetivou avaliar a presença de distúrbio ventilatório obstrutivo (DVO), distúrbio ventilatório restritivo (DVR) ou misto em pacientes com diagnóstico de câncer submetidos a tratamento quimioterápico. Métodos: Trata-se de estudo transversal descritivo que avaliou pacientes com diagnóstico de câncer e submetidos à quimioterapia utilizando os fármacos Doxorrubicina, Bleomicina, Vimblastina, Dacarbazina, Ciclofosfamida, Fluoruracila e Vincristina, sendo excluídos aqueles com diagnóstico de CA de pulmão. Realizado teste de função pulmonar através de análise espirométrica (EasyOne®, Switzerland) em pacientes que iniciaram tratamento quimioterápico há mais de 30 dias, tendo sido avaliadas a Capacidade Vital Forçada (CVF), o Volume Expiratório Forçado no primeiro segundo da CVF (VEF1), o Fluxo Expiratório Forçado entre 25-75% da CVF (FEF25 75%) e a Relação VEF1/CVFantes da sessão quimioterápica. Resultados: Amostra (n=18) composta por portadores de CA com média de idade de 49,28±9,90 anos e 26,49±5,67 Kg/m2 onde 44,4% apresentou padrão espirométrico normal, 27,8%apresentou DVO, 16,7% apresentou DVR e 11,1% apresentou distúrbio ventilatório misto. Conclusão: A quimioterapia resultou em distúrbio pulmonar obstrutivo, restritivo e misto nos portadores de leucemia, câncer de mama e Linfoma de Hodgkin não específico avaliados.

Effects of positive expiratory pressure on pulmonary clearance of aerosolized technetium-99m-labeled diethylenetriaminepentaacetic acid in healthy individuals

OBJECTIVE:

To evaluate the effects of positive expiratory pressure (PEP) on pulmonary epithelial membrane permeability in healthy subjects.

METHODS:

We evaluated a cohort of 30 healthy subjects (15 males and 15 females) with a mean age of 28.3 ± 5.4 years, a mean FEV1/FVC ratio of 0.89 ± 0.14, and a mean FEV1 of 98.5 ± 13.1% of predicted. Subjects underwent technetium-99m-labeled diethylenetriaminepentaacetic acid (99mTc-DTPA) radioaerosol inhalation lung scintigraphy in two stages: during spontaneous breathing; and while breathing through a PEP mask at one of three PEP levels-10 cmH2O (n = 10), 15 cmH2O (n = 10), and 20 cmH2O (n = 10). The 99mTc-DTPA was nebulized for 3 min, and its clearance was recorded by scintigraphy over a 30-min period during spontaneous breathing and over a 30-min period during breathing through a PEP mask.

RESULTS:

The pulmonary clearance of 99mTc-DTPA was significantly shorter when PEP was applied-at 10 cmH2O (p = 0.044), 15 cmH2O (p = 0.044), and 20 cmH2O (p = 0.004)-in comparison with that observed during spontaneous breathing.

CONCLUSIONS:

Our findings indicate that PEP, at the levels tested, is able to induce an increase in pulmonary epithelial membrane permeability and lung volume in healthy subjects.

OBJETIVO:

Avaliar os efeitos da pressão expiratória positiva (PEP) na permeabilidade da membrana epitelial pulmonar em indivíduos saudáveis.

MÉTODOS:

Foi avaliada uma coorte de 30 indivíduos saudáveis (15 homens e 15 mulheres), com média de idade de 28,3 ± 5,4 anos, média da relação VEF1/CVF de 0,89 ± 0,14 e média de VEF1 de 98,5 ± 13,1% do previsto. Os indivíduos foram submetidos a cintilografia pulmonar por inalação de radioaerossol de ácido dietilenotriaminopentacético marcado com tecnécio-99m (99mTc-DTPA em inglês) em dois estágios: durante respiração espontânea e durante respiração com uma máscara de PEP de 10 cmH2O (n = 10), 15 cmH2O (n = 10) ou 20 cmH2O (n = 10). O 99mTc-DTPA foi nebulizado por 3 min, e sua depuração foi registrada por cintilografia por um período de 30 min durante respiração espontânea e por um período de 30 min durante a respiração com uma máscara de PEP.

RESULTADOS:

A depuração pulmonar do 99mTc-DTPA foi significativamente menor quando PEP foi aplicada a 10 cmH2O (p = 0,044), 15 cmH2O (p = 0,044) e 20 cmH2O (p = 0,004), em comparação com a observada durante a respiração espontânea.

CONCLUSÕES:

Nossos achados indicam que o uso de PEP nos níveis testados pode induzir um aumento na permeabilidade da membrana epitelial pulmonar e no volume pulmonar em indivíduos saudáveis.

Physical therapy performance in the rehabilitation of survivors of the Kiss nightclub tragedy: an experience report

Abstract Introduction : As a result of a fire in the Kiss nightclub that occurred in the city of Santa Maria - RS, 242 people were killed, of whom 235 died on the day of the episode, asphyxiated by the inhalation of toxic smoke. Approximately 1,000 more were injured. Objective : To report the experience of a group of physical therapists, professors at the Federal University of Santa Maria (UFSM), in the rehabilitation of survivors of the fire, victims of burns and inhalation injury. Materials and methods : Quantitative and qualitative study, in which an evaluation protocol of physical functional ability was designed to identify rehabilitation needs. Results : Two hundred seventy patients (147 men, mean age 26.72 ± 9.5 years) were examined, of which approximately 70% had some type of clinical modification or functional impairment that indicated the need for rehabilitation. The most prevalent respiratory signs and symptoms were: dry or productive cough (59.2%); abnormal respiratory pace (11.4%); fatigue (35.92%); dyspnea (17.7%); and chest pain (16.6%). Neurological symptoms such as persistent headache (88.51%), memory loss (11.4%), and paresthesia (8.1%) were also reported. Musculoskeletal injuries (14.7%) and extensive burns (8.8%) were also observed. One hundred and eighty-nine patients were referred to outpatient physical therapy and, of these, 22 still remain at the Outpatient Physical Therapy Unit of the University Hospital of (HUSM). Conclusions : Despite the vast professional experience of this group of physical therapists, the situations experienced were unique and unprecedented, both professionally and personally, and reinforced the importance of joining forces within an emergency care unit, as well as the importance of comprehensive and multi-professional outpatient monitoring.

Short-term inspiratory muscle training potentiates the benefits of aerobic and resistance training in patients undergoing CABG in phase II cardiac rehabilitation program

OBJECTIVE

To investigate the efficiency of short-term inspiratory muscle training program associated with combined aerobic and resistance exercise on respiratory muscle strength, functional capacity and quality of life in patients who underwent coronary artery bypass and are in the phase II cardiac rehabilitation program.

METHODS

A prospective, quasi-experimental study with 24 patients who underwent coronary artery bypass and were randomly assigned to two groups in the Phase II cardiac rehabilitation program: inspiratory muscle training program associated with combined training (aerobic and resistance) group (GCR + IMT, n=12) and combined training with respiratory exercises group (GCR, n=12), over a period of 12 weeks, with two sessions per week. Before and after intervention, the following measurements were obtained: maximal inspiratory and expiratory pressures (PImax and PEmax), peak oxygen consumption (peak VO2) and quality of life scores. Data were compared between pre- and post-intervention at baseline and the variation between the pre- and post-phase II cardiac rehabilitation program using the Student's t-test, except the categorical variables, which were compared using the Chi-square test. Values of P<0.05 were considered statistically significant.

RESULTS

Compared to GCR, the GCR + IMT group showed larger increments in PImax (P<0.001), PEmax (P<0.001), peak VO2 (P<0.001) and quality of life scores (P<0.001).

CONCLUSION

The present study demonstrated that the addition of inspiratory muscle training, even when applied for a short period, may potentiate the effects of combined aerobic and resistance training, becoming a simple and inexpensive strategy for patients who underwent coronary artery bypass and are in phase II cardiac rehabilitation.

Association between the ankle-brachial index, intermittent claudication, and physical activity level: what is the influence on the functional capacity of patients with or at high risk of cardiovascular disease?

Background

Patients with or at high risk of cardiovascular disease have a poor functional capacity; however, the influence of association among intermittent claudication (IC), abnormal ankle–brachial index (ABI), and physical activity level on functional capacity of these patients has not been fully studied.

Objective

The primary objective of this study was to investigate the association between the ABI, IC, and physical activity level, and the influence of these variables on the functional capacity of patients with or at high risk of cardiovascular disease seen in a reference cardiology outpatient clinic in Southern Brazil. The secondary objective was to assess the prevalence of peripheral arterial disease (PAD) in this sample of patients.

Patients and methods

This was a prospective cross-sectional study in which 162 consecutive patients were evaluated and classified into three groups according to their ABI: normal ABI (n=104, values between 1.00 and 1.40); borderline PAD (n=23, values between 0.91 and 1.00); and patients with PAD (n=35, ≤0.90). The presence of IC was assessed using the Edinburgh Claudication Questionnaire. The level of physical activity was assessed by the short version of the International Physical Activity Questionnaire (IPAQ) and functional capacity was assessed by the 6-minute walk distance (6MWD).

Results

The prevalence of PAD was 21.6% in the total sample. The 6MWD showed strong correlation with the absence of IC (r=0.785; P<0.001), moderate correlation with age (r=−0.347; P<0.001), and weak correlations with IPAQ scores (r=0.164; P=0.038) and ABI (r=0.216; P=0.006). Age, ABI, and absence of IC were independently associated with the outcome (P=0.001, P=0.001, and P=0.028, respectively).

Conclusion

The current study demonstrates that 6MWD is associated with IPAQ scores, ABI, and absence of IC. Age, ABI and absence of IC were independently associated with functional capacity in patients with or at high risk of cardiovascular disease.

Obesity and arterial hypertension in schoolchildren from Santa Cruz do Sul--RS, Brazil

OBJECTIVE

To verify the prevalence of obesity and hypertension in schoolchildren from Santa Cruz do Sul - RS, Brazil, in 2005 and 2008.

METHOD

The study was performed with two consecutive cross-sectional measurements, consisting of a stratified cluster sample, totaling 414 students, aged between 7 and 17 years, of which 215 (51.9%) were males and 199 (48.1%) were females. Obesity was assessed by body mass index (BMI) and percentage of body fat (%BF). Hypertension was measured by blood pressure values, both systolic (SBP) and diastolic (DBP).

RESULTS

BMI assessment showed 18.6% and 22.3% of excess weight in males and 22.6% and 14.6% in females (in 2005 and 2008, respectively). Regarding obesity, the prevalence was 4.7% in both years for males and a reduction from 12.6% to 9.0% was observed in females. When analyzing the difference between assessments, there was significance in the BMI classification (p = 0.022) and %BF (p = 0.017) only in females. Statistically significant changes in SBP were found only in males (p < 0.001).

CONCLUSION

The levels of excess weight, obesity, and %BF in females, as well as the increased levels of systolic blood pressure in males, demonstrate the need for early intervention through more effective public health campaigns.

Capacidade funcional submáxima e força muscular respiratória entre idosas praticantes de hidroginástica e dança: um estudo comparativo

O exercício físico é uma estratégia eficaz para prevenir e retardar as perdas funcionais do envelhecimento, mas há poucos estudos indicando qual a melhor modalidade para incrementar o status funcional do idoso. OBJETIVO: Comparar a força muscular respiratória (FMR) e a capacidade funcional submáxima de idosas praticantes de hidroginástica e dança. MATERIAL e MÉTODOS: Estudo transversal com idosas do sexo feminino (n=46), praticantes de hidroginástica (Grupo Hidroginástica - GH; n=23) e dança (Grupo Dança - GD; n=23). Para medida da prática de atividade física, foi utilizado o International Physical Activit Questionnarie (IPAQ-versão curta); a FMR foi avaliada por meio da pressão inspiratória máxima (PImax) e da pressão expiratória máxima (PEmax), e a medida da capacidade funcional submáxima, realizada pelo Teste da Caminhada dos Seis Minutos (TC6m). RESULTADOS: O GD apresentou maior PImax (84 ± 12,49 cmH2O) quando comparado ao GH (63,35 ± 10,47 cmH2O) (p< 0,0001), e a PEmax não variou significativamente entre os grupos (p= 0,08). Quanto à distância percorrida no TC6m, o GD (616,53 ± 60,81 m) obteve melhor desempenho que o GH (446,65 ± 48,67 m) (p< 0,0001). Quanto ao nível de atividade física, o GD apresentou 19 idosas (82,61%) muito ativas e quatro (17,39%) ativas, e o GH apresentou oito idosas (30,76%) muito ativas e 15 (69,23%) ativas. CONCLUSÃO: As idosas praticantes de dança evidenciaram maior força muscular inspiratória e capacidade funcional submáxima, possivelmente devido ao maior nível de atividade física e também pelo fato de a dança ser uma modalidade essencialmente aeróbia.

Efeitos da pressão positiva expiratória nas vias aéreas sobre a atividade eletromiográfica da musculatura acessória da inspiração em portadores de DPOC

OBJETIVO: Avaliar a atividade eletromiográfica (AE) dos músculos esternocleidomastoideo (ECM) e escaleno durante e após a aplicação de expiratory positive airway pressure (EPAP, pressão positiva expiratória nas vias aéreas) em portadores de DPOC. MÉTODOS: Ensaio clínico simples cego com 13 indivíduos hígidos como controles e 12 pacientes com DPOC estável. No momento basal, foram determinados a AE em respiração espontânea, parâmetros da função pulmonar e a força muscular respiratória. Posteriormente, foi aplicada EPAP de 15 cmH2O com uma máscara facial durante 25 min, com o registro do sinal eletromiográfico dos músculos ECM e escaleno a cada 5 min. Um último registro foi obtido 10 min após a retirada da máscara. RESULTADOS: Observamos que o comportamento da AE dos músculos ECM e escaleno foi semelhante nos controles e pacientes com DPOC (p = 0,716 e p = 0,789, respectivamente). Porém, ao longo da aplicação de EPAP, ambos os músculos mostraram uma tendência ao aumento da AE. Além disso, houve uma redução significativa da AE do ECM entre o momento final e basal (p = 0,034). CONCLUSÕES: A aplicação de EPAP promoveu uma redução significativa da AE do músculo ECM tanto nos controles quanto nos portadores de DPOC estável. Porém, isso não ocorreu em relação à AE do músculo escaleno.

Lack of effect of dopaminergic antagonists in a rodent model of peritoneal sepsis

Central nervous system dopaminergic mechanisms have been implicated in the cytokine response to stress and sepsis. We here describe the effects of haloperidol or clozapine in the treatment of sepsis induced by cecal ligation and puncture. Male Wistar rats were subjected to the CLP procedure were treated with haloperidol or clozapine and plasma cytokines, myeloperoxidase activity, markers of organ injury and survival was analyzed. The addition of haloperidol or clozapine to basic support did not diminished hepatic, renal, pancreatic or muscular damage observed after sepsis. Neither haloperidol, nor clozapine, modulates pro and antiinflammatory cytokines after sepsis induction. In addition, haloperidol treatment did not diminished myeloperoxidase activity in the kidney, lung or liver, or altered BALF markers of lung damage or inflammatory infiltration. Our data did not support a role of haloperidol or clozapine as an immunomodulator agent in the treatment of sepsis in an animal model of peritonitis.

Câncer de mama: mortalidade crescente na Região Sul do Brasil entre 1980 e 2002

O câncer de mama é apontado como o tipo de câncer mais prevalente no mundo. No Brasil, as taxas de mortalidade por câncer de mama continuam elevadas, observando-se diferenças inter-regionais. Foi realizado um estudo ecológico de série temporal (1980-2002) na Região Sul, com dados anuais do Departamento de Informação e Informática do SUS (DATASUS), para avaliar o comportamento do coeficiente de mortalidade por câncer de mama, padronizado por idade. Utilizou-se regressão linear simples e múltipla para estimar as taxas de mortalidade e as diferenças entre os três Estados. O Rio Grande do Sul parte de um patamar mais elevado e apresenta maior taxa média de mortalidade (14,45), sendo significativamente diferente (p < 0,001) quando comparado com Santa Catarina (8,93) e Paraná (9,95). Observou-se um aumento anual de 0,47 óbito na taxa de mortalidade por câncer de mama, independente do Estado. Conclui-se que há uma tendência similar de aumento da mortalidade por câncer de mama nos três Estados da Região Sul, com índices significativamente maiores no Rio Grande do Sul, enfatizando-se a importância da identificação dos fatores relacionados a esse quadro alarmante e o estabelecimento de medidas efetivas a fim de reverter esses números.