Physical rehabilitation for the management of cancer-related fatigue during cytotoxic treatment: a systematic review with meta-analysis.

OBJECTIVE: To assess the effect of physical therapy on cancer-related fatigue (CRF) during cytotoxic anticancer treatment. METHODS: Systematic review with meta-analysis of randomized clinical trials published from 2010 to 2021 (EMBASE, MEDLINE, PEDro; SciELO, and LILACS). Studies assessing the effect of supervised physical therapy (IG) for the management of CRF on adults undergoing anticancer treatment compared with a control group (CG) covering usual care or any uncontrolled practice, such as recommendations about exercise and health education, were included in this review. RESULTS: A total of 22 studies were included in the SR and 21 in the meta-analysis, resulting in 1.992 individuals (CG = 973 and IG = 1.019). There was a reduction in general fatigue [SMD = - 0.69; 95%CI (- 1.15, - 0.22) p < 0.01; I2 = 87%; NNT = 3], with greater weight attributed to combined exercise (44%). Physical fatigue also reduced [SMD = - 0.76; 95%CI (- 1.13, - 0.39) p < 0.01; I2 = 90%; NNT = 2], with greater weight for resistance exercise (50%) and greater effect with combined exercise [SMD = - 1.90; 95%CI (- 3.04, - 0.76) p < 0.01; I 2 = 96%]. There was reduction in general fatigue with moderate intensity (74%) [SMD = - 0.89; 95%CI (- 1.61, - 0.17) p < 0.02; I2 = 90%] and physical fatigue [SMD = - 1.00; 95%CI (- 1.54, - 0.46) p < 0.01; I2 = 92%], while high intensity reduced only general fatigue [SMD = - 0.35; 95%CI (- 0.51, - 0.20) p < 0.01; I2 = 0%]. The number of overall and weekly sessions has been shown to contribute to the reduction of CRF. CONCLUSION: Physical rehabilitation with moderate intensity promoted greater relief of general and physical fatigue. Even after controlling for high heterogeneity, the quality of evidence, summarized in GRADE, was considered moderate for general fatigue and low for physical fatigue.

Effect of inspiratory muscle training associated or not to physical rehabilitation in preoperative anatomic pulmonary resection: a systematic review and meta-analysis.

OBJECTIVE: The aim of this study is to systematically review the effect of inspiratory muscle training (IMT) associated or not with physical rehabilitation in the preoperative period of anatomical pulmonary resection. METHODS: Search in the databases: MEDLINE, Cochrane CENTRAL, EMBASE, LILACS and PEDro up to November 2019. Randomized clinical trials (RCTs) were included in adults in the preoperative period of pulmonary resection. The selection of studies and data extraction was performed by two independent reviewers. The risk of bias assessed with RoB 2.0 and the quality of evidence with GRADE. PROSPERO: CRD42018105859. RESULTS: Six RCTs were included; patients who underwent IMT in the preoperative period showed a significant improvement in functional capacity assessed by the 6-min walk test (6WT) (MD 28,93 [IC 95% 0,28; 57,58], p = 0,04, I2 = 0%) and significantly reduced the length of hospital stay (MD -3,63 [IC 95% -4,96; -2,29], p = 0,00, I2 = 0%). There was no significant difference between groups regarding pulmonary function, in postoperative complications such as pneumonia (RR 0,56 [IC 95% 0,29; 1,10], p = 0,09, I2 = 0%), atelectasis (RR 0,81 [IC 95% 0,24; 2,69], p = 0,72, I2 = 0%), mechanical ventilation > 48 h (RR 0,43 [IC 95% 0,12; 1,58], p = 0,20, I2 = 0%), in mortality (RR 0,33 [IC 95% 0,04; 3,12], p = 0,33, I2 = 0%), and quality of life. CONCLUSION: IMT associated with physical exercise in the preoperative period of pulmonary resection improves functional capacity and reduces the length of hospital stay in the postoperative period.

Acute effect of photobiomodulation therapy on handgrip strength of chronic kidney disease patients during hemodialysis.

Pre-exercise photobiomodulation therapy (PBMT) reduces fatigue and enhances performance in different populations. However, PBMT benefits have never been tested on chronic kidney disease (CKD) patients, who present muscle weakness, fatigue, and reduced functional performance. The objective of this study was to evaluate the acute effect of three different doses of the PBMT on maximal handgrip strength of CKD patients. Fifteen volunteers (58 ± 8 years, 10 male/5 female) under chronic hemodialysis treatment (6 ± 4 years) participated in a randomized, crossover, double-blind, placebo-controlled trial. Each patient was assessed at four hemodialysis sessions with 1 week interval between evaluations. Placebo or PBMT (cluster probe with five 850 nm/200 mW laser diodes) were applied at three sites along the flexors of the finger (total doses of 60, 90, or 120 J per arm). The maximal handgrip strength was evaluated before and after PBMT/placebo treatment in each session. Repeated measures ANOVA and intraclass correlation coefficients (ICC) confirmed no learning effect on handgrip tests, and high scores for test-retest reliability (ICC scores = 0.89 to 0.95). Significant strength increases occurred after PBMT application with doses of 60 J/arm (4.85%, p = 0.005, ES = 0.32) and 90 J/arm (4.45%, p = 0.013, ES = 0.25), while no changes were detected with placebo or 120 J/arm. In conclusion, in consensus with a recent systematic review, a single bout of the 60 J/arm was the best dose/response for increased strength of the small muscles (handgrip strength). In view of the increasing implementation of exercise programs during hemodialysis, the current study opens a new field for PBMT for CKD patients.

Intradialytic neuromuscular electrical stimulation reduces DNA damage in chronic kidney failure patients: a randomized controlled trial.

BACKGROUND: Chronic kidney failure (CKF) patients on renal replacement therapies exhibit elevated levels of DNA lesions and this is directly related to high mortality. OBJECTIVE: This study aimed to evaluate the effect of neuromuscular electrical stimulation (NMES) on genomic damage in CKF patients on conventional haemodialysis (HD). METHODS: Twenty-one patients with CKF on HD were randomized into control (CG =10) or neuromuscular electrical stimulation (NMESG = 11) groups. NMES was applied on the quadriceps muscle during the HD session, three times a week, for 8 weeks in NMESG. DNA damage in blood was evaluated by the alkaline comet assay prior to follow-up, after 4 and 8 weeks of intervention. RESULTS: Intradialytic NMES in CKF patients induced a significant decrease in DNA damage after four [49.9 (3.68) vs 101.5 (6.53); p = 0.000] than eight [19.9 (2.07) vs 101.5 (6.53); p = 0.000] weeks compared to baseline. Genomic damage was also significantly less after four [NMESG: 49.9 (3.68) vs CG: 92.9 (12.61); p = 0.001] than after eight [NMESG: 19.9 (2.07) vs CG: 76.4 (11.15); p = 0.000] weeks compared to CG. CONCLUSIONS: This study demonstrates for the first time that intradialytic NMES is able to reduce DNA damage in blood of CKF patients.

Electrical Stimulation for Treatment of Dysphagia Post Head Neck Cancer: A Systematic Review and Meta-Analysis.

Introduction Dysphagia induced by radiotherapy in the head and neck region comprises a challenging scenario and sometimes difficult rehabilitation due to the severity of the adverse effects. Some resources such as electrical stimulation have emerged as an alternative to complement the therapeutic process, but there is still no consensus on its use. Objective The purpose of the present study was to evaluate, through a meta-analysis, the effect of electrical stimulation on the rehabilitation of dysphagia generated after head and neck cancer treatment. Data Synthesis Four randomized controlled trials with a total of 146 participants were included. The age of the participants was 58.37 ± 1.8 years old and there was a predominance of males. The time to start the intervention ranged from 50.96 ± 40.12 months after cancer treatment. The intervention showed great heterogeneity regarding the positioning of the electrodes, parameters, duration of the stimulus, number of sessions, and intensity. No difference was identified in the following aspects: oral transit time, hyoid elevation, penetration and/or aspiration after electrostimulation. The quality of the evidence ranged from very low to moderate and high risk of bias. Conclusion In this meta-analysis, we found weak evidence for small and moderate swallowing benefits in patients after radiotherapy for head and neck cancer in short-term clinical trials.

Preventive measures for the progression of dysphagia in patients with cancer of head and neck subjected to radiotherapy: a systematic review with meta-analysis. / Medidas de prevenção da progressão da disfagia em pacientes com câncer de cabeça e pescoço submetidos a radioterapia: uma revisão sistemática com meta-análise.

PURPOSE: To identify the effects of prophylactic, non-pharmacological measures on the progression of dysphagia in patients with head and neck cancer undergoing radiotherapy. RESEARCH STRATEGIES: The search was performed in Medline (via PubMed), Scopus, and Embase databases, as well as in the gray literature. SELECTION CRITERIA: Randomized clinical trials were included, with adult patients (≥ 18 years old) and diagnosed with head and neck cancer, treated with radiotherapy (with or without surgery and chemotherapy), and submitted to non-pharmacological protocols for the prevention of dysphagia. DATA ANALYSIS: The risk of bias was assessed using the PEDRO scale and the overall quality of evidence was assessed using the GRADE instrument. RESULTS: Four studies were considered eligible, and of these, two were included in the meta-analysis. The result favored the intervention group, with a mean difference of 1.27 [95% CI: 0.74 to 1.80]. There was low heterogeneity and the mean score for risk of bias was 7.5 out of 11 points. The lack of detail in the care with selection, performance, detection, attrition, and reporting biases contributed to the judgment of the quality of the evidence, considered low. CONCLUSION: Prophylactic measures to contain dysphagia can promote important benefits on the oral intake of patients with head and neck cancer when compared to those who did not undergo such a therapeutic measure during radiotherapy.

OBJETIVO: Identificar os efeitos de medidas profiláticas, não farmacológicas, sobre a progressão da disfagia em pacientes com câncer de cabeça e pescoço submetidos a radioterapia. ESTRATÉGIA DE PESQUISA: A busca foi realizada nas bases de dados Medline (via PubMed), Scopus e Embase, assim como na literatura cinzenta. CRITÉRIOS DE SELEçÃO: Foram incluídos ensaios clínicos randomizados, com pacientes adultos (≥ 18 anos) e diagnóstico de câncer de cabeça e pescoço, tratados com radioterapia (associada ou não à cirurgia e quimioterapia) submetidos a protocolos não farmacológicos de prevenção da disfagia. ANÁLISE DOS DADOS: O risco de viés foi avaliado por meio da escala PEDRO e a qualidade global da evidência foi avaliada de acordo com o instrumento GRADE. RESULTADOS: Foram considerados elegíveis 4 estudos, e desses, dois foram incluídos na metanálise. O resultado favoreceu o grupo intervenção, com diferença média de 1,27 [IC 95%: 0,74 à 1,80]. Houve baixa heterogeneidade e a pontuação média para risco de viés foi de 7,5 de um total de 11 pontos. A falta de detalhamento nos cuidados com os vieses de seleção, performance, detecção, atrito e de relato contribuíram para o julgamento da qualidade da evidência, considerada baixa. CONCLUSÃO: Medidas profiláticas de contenção da disfagia podem promover importantes benefícios sobre a ingesta oral dos pacientes com câncer de cabeça e pescoço, quando comparados aqueles que não realizaram tal medida terapêutica ao longo da radioterapia.

Effect of physical exercise on the functional capacity of children and adolescents submitted to transplantation of hematopoietic stem cells-A systematic review with meta-analysis.

Previous studies have shown beneficial effects of physical exercise (PE) in adults submitted to hematopoietic stem cell transplantation (HSCT). Conduct a systematic review about the effects of PE on the functional capacity of children and adolescents submitted to HSCT. The studies were searched in the databases MEDLINE (via PubMed), Central Register of Controlled Trials (Cochrane CENTRAL), EMBASE, LILACS, and Evidence Database in Physical Therapy (PEDro) (CRD42018080093). Two independent reviewers performed the article selection, data extraction, and methodological quality assessment. Randomized and nonrandomized clinical trials comparing PE with usual treatment in children and adolescents aged 3-18 years were included. The risk of bias was assessed using the Cochrane Collaboration tool and ROBINS-I tool, and the overall quality of the evidence was determined by the GRADE system. We included three studies with 91 patients. PE improved the functional capacity assessed by the timed up and down stairs test (MD -1.23 [95% CI, 2.27 to -.20, I2 = 0%]), but there was no significant effect in the six-minute walk test (MD 44.63 [95% CI, -20.86 to 110.13, I2 = 83%]). The benefits regarding quality of life and peripheral muscle strength of these individuals were not clearly demonstrated, but positive responses were observed in relation to the analyzed data. None of the studies evaluated the fatigue. The limitations found were the high heterogeneity between studies, as well as the sample size and the low methodological rigor. PE might be favorable to improve the functional capacity of children and adolescents treated with HSCT. However, further studies are needed to clarify the best PE program.

The addition of thoracic mobilization to aerobic exercise did not alter autonomic function and pain pressure threshold acutely in asymptomatic young people: A randomized controlled trial.

OBJECTIVE: To analyze the influence of acute aerobic exercise (AE) plus thoracic mobilization in pain perception and autonomic nervous system response in healthy adults. DESIGN: Randomized clinical trial. METHODS: Forty-eight asymptomatic adults were allocated into one of three groups: 1) Aerobic Exercise (AE), 2) Aerobic Exercise + Mobilization (AE + M), and 3) Placebo. Participants from groups AE and AE + M ran for 5 min on a treadmill with a 75-85% of age-predicted heart rate. Participants from AE + M group also received a rotatory thoracic passive accessory intervertebral mobilization at T4 after running. Participants from the Placebo group received placebo mobilization. We mesured the autonomic system modulation through Heart Rate Variability (HRV) (time-domain, frequency-domain, and non-linear variables). We measured Pressure Pain Threshold (PPT) with a handheld digital algometer. RESULTS: While aerobic exercise increased the sympathetic outflow and reduced the HRV, the addition of vertebral mobilization to exercise had no further effect on autonomic system modulation. There was no change in PPT in any group. Besides, there was no correlation between HRV and PPT. CONCLUSION: Thoracic mobilization did not increase the sympathetic response induced by aerobic exercise. Moreover, exercise alone or exercise plus thoracic mobilization did not change the PPT.

The Effect of Different Interventions for Lifestyle Modifications on the Number of Diagnostic Criteria and Clinical Aspects of Metabolic Syndrome.

Background: Lifestyle intervention programs comprise the first-choice therapy to reduce the cardiovascular risk factors in metabolic syndrome (MetS). Our aim was to compare the effects of three lifestyle modification programs on the number of diagnostic criteria and clinical parameters of MetS. Methods: Twelve-week clinical trial, including 125 adults who presented at least three of the criteria defined by the revised NCEP ATP III (National Cholesterol Education Program Adult Panel III) for MetS. Individuals were randomized into three multidisciplinary intervention groups: Standard Intervention (SI), Group Intervention (GI) and Individual Intervention (II). Results: Seventy-one individuals, aged 34-59 years, concluded the study: SI: 20, GI: 25, and II: 26. The GI and II groups presented a significant decrease of body mass index, abdominal circumference, diastolic and systolic arterial pressure after intervention. The number of diagnostic criteria for MetS decreased significantly. Within the GI and II groups, 16.0% and 15.4% of the individuals, respectively, did not meet the criteria for the clinical condition studied at the end of the interventions. In the II group, the percentage of individuals with five criteria reduced 83.5%. In the GI group, the percentage of individuals with five criteria remained the same, but the number of individuals with four criteria presented a 50.0% reduction. Conclusions: Results reinforce that nonpharmacological strategies for changing lifestyle affect the reduction of cardiovascular risk factors existing in MetS. They are also able to remove the population from this clinical condition by decreasing the diagnostic criteria. II or GI lead to a successful treatment of MetS, especially when conducted by multidisciplinary team. Brazilian Registry of Clinical Trials-ReBEC number: RBR-9wz5fc.

Short period of high-intensity inspiratory muscle training improves inspiratory muscle strength in patients with chronic kidney disease on hemodialysis: a randomized controlled trial.

BACKGROUND: Chronic kidney disease is a complex disease that impacts multiple organs and systems (including musculoskeletal and cardiorespiratory) leading to reduction of functional capacity. OBJECTIVE: The aim of this study was to investigate the effect of a short period of high intensity inspiratory muscle training on maximum inspiratory pressure, functional capacity and endothelial function of chronic kidney disease patients on hemodialysis. METHODS: This randomized controlled trial enrolled 25 patients who were allocated into two groups: intervention (IMTG=14) and control (CG=11) groups. Intervention patients received the exercise protocol over a period of 5 weeks, 6 times per week, with each session consisting of 5 sets of 10 repetitions with an initial load of 50% progressing to 70% of maximum inspiratory pressure , measured weekly. The primary outcome was inspiratory muscle strength and the secondary outcomes were functional capacity and endothelial function evaluated before and after the training protocol. RESULTS: The inspiratory muscle training induced a marked improvement in maximum inspiratory pressure which was evident after the training period (mean difference 19.0cmH2O - 95%CI 0.4-37.5; IMTG: 102±25.7cmH2O vs CG: 83±19.2; p=0.046). The magnitude of maximum inspiratory pressure improvement was 33.5% at the end of the protocol for the IMTG. Functional capacity and endothelial function did not vary between or within groups. CONCLUSION: A short period of high-intensity inspiratory muscle training for five weeks was able to improve inspiratory muscle strength of chronic kidney disease patients on hemodialysis (ClinicalTrials.gov registration NCT03082404).

Acute Physical Effort Increases Sympathovagal Balance Responses to Autonomic Stimulation in Metabolic Syndrome.

BACKGROUND: There is little evidence of how metabolic syndrome (MS) affects sympathovagal balance responses to acute physical effort (APE) and autonomic stimulation (AS). This study aimed to evaluate the heart rate variability (HRV) responses to the combined APE and AS challenges. METHODS: Fourteen subjects (8 men; 49.15 ± 8.67 years) divided into two groups: 7 healthy volunteers [control group (CG)] and 7 patients with MS. Sympathovagal balance [low frequency (LF)/high frequency (HF) ratio] was accessed by HRV through the beat-to-beat heart rate (HR) electrocardiogram. Other variables analyzed were as follows: HR, RR-interval variance (VAR/ms2), LF and HF normalized units (un). The APE consisted of a 30-min walk at 65%-75% of the age-predicted maximal HR. The AS was achieved by changing from the supine to standing position (activity orthostatic position). RESULTS: At rest, all HRV variables differ with on MS, but after APE and AS LF (nu) and HF (nu) become similar to the CG. However, the LF/HF ratio responses to the AS were significantly different after APE, but only in the MS (CG rest: 367% ± 59% vs. recovery 495% ± 116%, P > 0.05; MS rest: 316% ± 88% vs. recovery: 665% ± 165%; P = 0.045). Comparing the difference between AS in rest and recovery (ΔAS = rest - recovery), the LF/HF ratio was notably higher in the MS group (CG: 94% ± 29% vs. MS: 415% ± 76%; P < 0.0001). CONCLUSIONS: The APE and AS induced by body posture changes activated a clear distinction in sympathovagal balance response in MS.

Electrical stimulation in the treatment of radiotherapy-induced hyposalivation. / Estimulação elétrica no tratamento da hipossalivação induzida pela radioterapia.

PURPOSE: To analyze the effects of electrical stimulation on the salivary flow of head and neck cancer patients with radiotherapy-induced hyposalivation. RESEARCH STRATEGIES: Searches were made in the Medline (via Pubmed), Cochrane Library, Scopus and Lilacs databases. SELECTION CRITERIA: Selection included clinical trials that evaluated salivary flow objectively, published in the last 10 years in either Portuguese, English or Spanish. DATA ANALYSIS: The PEDro scale was used for the methodological evaluation of the studies. RESULTS: The search strategy resulted in 21 publications, 17 of which were excluded, hence there were 4 articles left. The included studies had a total of 212 participants, all of whom had an increase in salivary flow, both through the electroacupuncture method and direct application on the salivary glands. The score obtained through the PEDRo scale was low, evidencing questionable methodological quality and risk of bias. CONCLUSION: The included studies demonstrate the clinical potential of TENS to increase the salivary flow of head and neck cancer patients treated with RT.

OBJETIVO: Analisar os efeitos da eletroestimulação sobre o fluxo salivar de pacientes com hipossalivação induzida por radioterapia em região de cabeça e pescoço. ESTRATÉGIA DE PESQUISA: Utilizaram-se as bases de dados Medline (via Pubmed), Cochrane Library, Scopus e Lilacs. CRITÉRIOS DE SELEÇÃO: Foram selecionados os ensaios clínicos que avaliaram objetivamente o fluxo salivar, publicados nos últimos 10 anos em português, inglês ou espanhol. ANÁLISE DOS DADOS: Para avaliação metodológica dos estudos, foi utilizada a escala PEDro. RESULTADOS: A estratégia de busca resultou em 21 publicações, sendo que 17 foram excluídas, selecionando-se assim 4 artigos. Os estudos incluídos contaram com um total de 212 participantes, sendo que todos demonstraram aumento do fluxo salivar, tanto por meio do método de eletroacupuntura quanto pela estimulação aplicada diretamente sobre as glândulas salivares. A pontuação obtida por meio da escala PEDro foi baixa, evidenciando qualidade metodológica baixa e com consideráveis riscos de viés. CONCLUSÃO: os estudos incluídos demonstram o potencial clínico da TENS no aumento do fluxo salivar de pacientes com câncer de cabeça e pescoço tratados com RT.

Safety and potential benefits of physical therapy in adult patients on extracorporeal membrane oxygenation support: a systematic review. / Segurança e potenciais benefícios da fisioterapia em adultos submetidos ao suporte de vida com oxigenação por membrana extracorpórea: uma revisão sistemática.

Scientific and technological advances, coupled with the work of multidisciplinary teams in intensive care units, have increased the survival of critically ill patients. An essential life support resource used in intensive care is extracorporeal membrane oxygenation. Despite the increased number of studies involving critically ill patients, few studies to date have demonstrated the safety and benefits of physical therapy combined with extracorporeal membrane oxygenation support. This review identified the clinical outcomes of physical therapy in adult patients on extracorporeal membrane oxygenation support by searching the MEDLINE®, PEDro, Cochrane CENTRAL, LILACS, and EMBASE databases and by manually searching the references of the articles published until September 2017. The database search retrieved 1,213 studies. Of these studies, 20 were included in this review, with data on 317 subjects (58 in the control group). Twelve studies reported that there were no complications during physical therapy. Cannula fracture during ambulation (one case), thrombus in the return cannula (one case), and leg swelling (one case) were reported in two studies, and desaturation and mild vertigo were reported in two studies. In contrast, improvements in respiratory/pulmonary function, functional capacity, muscle strength (with reduced muscle mass loss), incidence of myopathy, length of hospitalization, and mortality in patients who underwent physical therapy were reported. The analysis of the available data indicates that physical therapy, including early progressive mobilization, standing, ambulation, and breathing techniques, together with extracorporeal membrane oxygenation, is feasible, relatively safe, and potentially beneficial for critically ill adult patients.

O avanço científico e tecnológico associado à atuação de equipes multidisciplinares nas unidades de terapia intensiva tem aumentado a sobrevida de pacientes críticos. Dentre os recursos de suporte de vida utilizados em terapia intensiva, está a oxigenação por membrana extracorpórea. Apesar das evidências aumentarem, faltam dados para demonstrar a segurança e os benefícios da fisioterapia concomitante ao uso da oxigenação por membrana extracorpórea. Esta revisão reúne as informações disponíveis sobre a repercussão clínica da fisioterapia em adultos submetidos à oxigenação por membrana extracorpórea. A revisão incluiu as bases MEDLINE®, PEDro, Cochrane CENTRAL, LILACS e EMBASE, além da busca manual nas referências dos artigos relacionados até setembro de 2017. A busca resultou em 1.213 registros. Vinte estudos foram incluídos, fornecendo dados de 317 indivíduos (58 no grupo controle). Doze estudos não relataram complicações durante a fisioterapia. Fratura da cânula durante a deambulação, trombo na cânula de retorno e hematoma na perna em um paciente cada foram relatados por dois estudos, dessaturação e vertigens leves foram relatadas em dois estudos. Por outro lado, foram feitos relatos de melhora na condição respiratória/pulmonar, capacidade funcional e força muscular, com redução de perda de massa muscular, incidência de miopatia, tempo de internação e mortalidade dos pacientes que realizaram a fisioterapia. Analisando o conjunto das informações disponíveis, pode-se observar que a fisioterapia, incluindo a mobilização precoce progressiva, ortostase, deambulação e técnicas respiratórias, executada de forma simultânea à oxigenação por membrana extracorpórea, é viável, relativamente segura e potencialmente benéfica para adultos em condição clínica extremamente crítica.

Electrical Stimulation for Treatment of Dysphagia Post Head Neck Cancer: A Systematic Review and Meta-Analysis

Abstract Introduction Dysphagia induced by radiotherapy in the head and neck region comprises a challenging scenario and sometimes difficult rehabilitation due to the severity of the adverse effects. Some resources such as electrical stimulation have emerged as an alternative to complement the therapeutic process, but there is still no consensus on its use. Objective The purpose of the present study was to evaluate, through a meta-analysis, the effect of electrical stimulation on the rehabilitation of dysphagia generated after head and neck cancer treatment. Data Synthesis Four randomized controlled trials with a total of 146 participants were included. The age of the participants was 58.37 ± 1.8 years old and there was a predominance of males. The time to start the intervention ranged from 50.96 ± 40.12 months after cancer treatment. The intervention showed great heterogeneity regarding the positioning of the electrodes, parameters, duration of the stimulus, number of sessions, and intensity. No difference was identified in the following aspects: oral transit time, hyoid elevation, penetration and/or aspiration after electrostimulation. The quality of the evidence ranged from very low to moderate and high risk of bias. Conclusion In this meta-analysis, we found weak evidence for small and moderate swallowing benefits in patients after radiotherapy for head and neck cancer in short-term clinical trials.

Clinical and Psychological Outcomes of the Use of Vaginal Dilators After Gynaecological Brachytherapy: a Randomized Clinical Trial.

INTRODUCTION: The aim of this study was to evaluate the dimensions of the vaginal canal in patients undergoing gynaecological brachytherapy and the effect of the use of vaginal dilators (VD) used in the follow-up of pelvic physiotherapy. METHODS: A total of 88 patients were randomly allocated to the control group (CG) and intervention group (IG). Three evaluations were performed: pre-brachytherapy, post-brachytherapy and follow-up of 3 months. The CG received standard guidance from the health team while the IG was instructed to use VD for 3 months. The dimensions of the vaginal canal (main outcome) were defined by the length of the vagina (centimetres), width (number of full clockwise turns of the opening thread of a gynaecological speculum) and area (defined by the size of the VD). Quality of life and pelvic floor (PF) functionality were also evaluated. RESULTS: There was no effect of the VD on vaginal length, width and area among the intention-to-treat (ITT) population. However, in the analysis stratified by adhesion, the CG had a significant decrease in the vaginal area. PF was predominantly hypoactive throughout the follow-up. Quality of life improved in both groups, but the reduction of constipation, vaginal dryness and stress urinary incontinence manifested only in the IG. CONCLUSION: The use of VD did not alter the dimensions of the vaginal canal within the first 3 months after the end of radiotherapy treatment. However, there was a large sample loss during follow-up so studies with a larger sample number and longer follow-up time need to be conducted. TRIAL REGISTRATION: ClinicalTrials.gov Identifier NCT03090217.

Transcutaneous Electrical Nerve Stimulation (TENS) on hyposalivation induced by radiotherapy in the head and neck region: a preliminary study. / Efeito agudo da Transcutaneous Electric Nerve Stimulation (TENS) sobre a hipossalivação induzida pela radioterapia na região de cabeça e pescoço: um estudo preliminar.

PURPOSE: To verify the acute effect of electrostimulation on the salivary flow of patients with hyposalivation. METHODS: Uncontrolled clinical trial evaluating 15 patients with hyposalivation induced by radiotherapy (RT) used for head and neck cancer treatment. Mean age of the patients was 56.8 ± 6.46 years. Males outnumbered females (73%). Transcutaneous Electrical Nerve Stimulation (TENS) was adjusted with 50Hz of frequency and 250µs of pulse width. Intensity was adjusted over a 20-minute period according to maximum tolerance. The electrodes were attached bilaterally on the region of the salivary glands. Evaluation of the salivary flow was performed through sialometry before and immediately after application of TENS. RESULTS: The most prevalent region for RT was the oropharynx (80.0% of cases). The mean dose used in RT was 64.6 ± 7.27 Gy. After TENS, salivary flow increased significantly (p = 0.0051) from 0.05 (0.00; 0.40) mL/min to 0.10 (0.07: 0.40) mL/min. The response to TENS was directly correlated with the intensity of the tolerated electric current (r = 0.553; p = 0.032) and the dose used in RT (r = -0.514; p = 0.050). CONCLUSION: TENS was able to increase the salivary flow rate of patients with RT-induced hyposalivation.

OBJETIVO: Verificar o efeito agudo da eletroestimulação sobre o fluxo salivar de pacientes com hipossalivação. MÉTODO: Ensaio clínico não controlado que avaliou o efeito de uma única aplicação da Transcutaneous Electric Nerve Stimulation (TENS) sobre o fluxo salivar de 15 pacientes com hipossalivação induzida por radioterapia (RT), utilizada no tratamento de câncer de cabeça e pescoço. A média de idade dos pacientes foi de 56,8 ± 6,46 anos e o gênero masculino foi predominante (73%). A TENS foi programada com 50Hz de frequência, 250µs de largura de pulso e a intensidade foi ajustada ao longo dos 20 minutos conforme máxima tolerância. Os eletrodos foram fixados bilateralmente sobre a região das glândulas salivares. A avaliação do fluxo salivar foi realizada por meio de sialometria estimulada, antes e imediatamente após a aplicação da TENS. RESULTADOS: Em 80% dos casos, o tratamento oncológico incluiu quimioterapia. A RT foi aplicada em 80% dos casos na região e orofaringe, com intensidade média de 64,6 ± 7,27 Gy. Após a TENS, o fluxo salivar aumentou significativamente (p = 0,0051), passando de 0,05 (0,00; 0,40) mL/min para 0,10 (0,07;0,40) mL/min. A resposta à TENS foi diretamente correlacionada à intensidade da corrente elétrica tolerada (r = 0,553; p = 0,032) e à dose utilizada na RT (r = -0,514; p = 0,050). CONCLUSÃO: A TENS aumentou significativamente o fluxo salivar de pacientes com hipossalivação induzida pela RT.

Effects of Transcutaneous Electrical Nerve Stimulation in Autonomic Nervous System of Hypertensive Patients: A Randomized Controlled Trial.

BACKGROUND: Patients with hypertension have altered autonomic nervous system function, which are increased sympathetic activity. Transcutaneous Electrical Nerve Stimulation (TENS) is a useful modality for pain control and has also been shown to be effective in the reduction of sympathetic activity in healthy subjects and individuals with cardiovascular diseases. OBJECTIVE: The aim of this study was to verify the effects of transcutaneous electrical nerve stimulation by the evaluation of heart rate variability (HRV) in patients with essential hypertension. METHOD: Twenty-eight patients received an application of low-frequency TENS(4 Hz) n=8, highfrequency TENS (100 Hz) n=10 or placebo TENS n=10 in paravertebral ganglionar region during thirty minutes. RESULTS: After 4 Hz TENS, there was a decrease in the low-frequency (LFn.u.) component (57.71±9.46 vs 45.58±13.51, p<0.026) and an increase in the high-frequency (HFn.u.) component (33.03±13.83 vs 45.83±20.19, p <0.05) of HRV. After 100 Hz TENS and placebo, there were no changes in the LF and HF components. No significant differences were found in systolic blood pressure with low-frequency TENS (129.37± 15.48 vs 126.69 ± 15.21, p<0.490). There was an increase, although not significant, with high-frequency TENS (131.00 ± 15.97 vs 138.75 ± 25.79, p<0.121) and placebo (133.80 ± 29.85 vs 134.80 ± 29.72, p< 0.800). No differences were found in the diastolic blood pressure with low-frequency TENS and placebo, but there was a significant increase in high-frequency TENS (81.00 ± 11.78 vs 85.65 ± 13.68, p< 0.018). CONCLUSION: Low-frequency TENS decreases sympathetic nervous system activity and increases parasympathetic nervous system activity and high-frequency TENS increases diastolic blood pressure, when applied on the paravertebral ganglionar region in the hypertensive patients.

Medidas de prevenção da progressão da disfagia em pacientes com câncer de cabeça e pescoço submetidos a radioterapia: uma revisão sistemática com meta-análise / Preventive measures for the progression of dysphagia in patients with cancer of head and neck subjected to radiotherapy: a systematic review with meta-analysis

RESUMO Objetivo Identificar os efeitos de medidas profiláticas, não farmacológicas, sobre a progressão da disfagia em pacientes com câncer de cabeça e pescoço submetidos a radioterapia. Estratégia de pesquisa A busca foi realizada nas bases de dados Medline (via PubMed), Scopus e Embase, assim como na literatura cinzenta. Critérios de seleção Foram incluídos ensaios clínicos randomizados, com pacientes adultos (≥ 18 anos) e diagnóstico de câncer de cabeça e pescoço, tratados com radioterapia (associada ou não à cirurgia e quimioterapia) submetidos a protocolos não farmacológicos de prevenção da disfagia. Análise dos dados O risco de viés foi avaliado por meio da escala PEDRO e a qualidade global da evidência foi avaliada de acordo com o instrumento GRADE. Resultados Foram considerados elegíveis 4 estudos, e desses, dois foram incluídos na metanálise. O resultado favoreceu o grupo intervenção, com diferença média de 1,27 [IC 95%: 0,74 à 1,80]. Houve baixa heterogeneidade e a pontuação média para risco de viés foi de 7,5 de um total de 11 pontos. A falta de detalhamento nos cuidados com os vieses de seleção, performance, detecção, atrito e de relato contribuíram para o julgamento da qualidade da evidência, considerada baixa. Conclusão Medidas profiláticas de contenção da disfagia podem promover importantes benefícios sobre a ingesta oral dos pacientes com câncer de cabeça e pescoço, quando comparados aqueles que não realizaram tal medida terapêutica ao longo da radioterapia.

ABSTRACT Purpose To identify the effects of prophylactic, non-pharmacological measures on the progression of dysphagia in patients with head and neck cancer undergoing radiotherapy. Research strategies The search was performed in Medline (via PubMed), Scopus, and Embase databases, as well as in the gray literature. Selection criteria Randomized clinical trials were included, with adult patients (≥ 18 years old) and diagnosed with head and neck cancer, treated with radiotherapy (with or without surgery and chemotherapy), and submitted to non-pharmacological protocols for the prevention of dysphagia. Data analysis The risk of bias was assessed using the PEDRO scale and the overall quality of evidence was assessed using the GRADE instrument. Results Four studies were considered eligible, and of these, two were included in the meta-analysis. The result favored the intervention group, with a mean difference of 1.27 [95% CI: 0.74 to 1.80]. There was low heterogeneity and the mean score for risk of bias was 7.5 out of 11 points. The lack of detail in the care with selection, performance, detection, attrition, and reporting biases contributed to the judgment of the quality of the evidence, considered low. Conclusion Prophylactic measures to contain dysphagia can promote important benefits on the oral intake of patients with head and neck cancer when compared to those who did not undergo such a therapeutic measure during radiotherapy.

Autonomic function and pressure pain threshold following thoracic mobilization in asymptomatic subjects: A randomized controlled trial.

OBJECTIVE: To compare the effects of two different mobilization techniques and a placebo intervention applied to the thoracic spine on heart rate variability (HRV) and pressure pain threshold (PPT) in asymptomatic individuals. METHODS: Sixty healthy asymptomatic subjects aged between 18 and 40 years old were randomized to a single session of one of the three interventions: posterior-to-anterior (PA) rotatory thoracic passive accessory intervertebral mobilization (PAIVM) (PA group), unilateral thoracic PA in slump position (SLUMP group) or placebo intervention (Placebo group). HRV and PPT at C7 and T4 spinous process, first dorsal interossei muscles bilaterally, and muscle belly of tibialis anterior bilaterally were measured before and immediately after the intervention. A univariate analysis of covariance (ANCOVA) adjusted for baseline values assessed the effect of "Group". Pairwise comparisons with Bonferroni adjustment for multiple comparisons were performed. RESULTS: There were no significant between-group differences for HRV. A significant between-group difference for PPT in the ipsilateral tibia was found favoring the SLUMP group in comparison with the PA group. There were no significant between-group differences for PPT in the other landmarks. CONCLUSION: A single treatment of thoracic PAIVM in prone lying and slump position did not alter PPT and HRV compared to placebo in asymptomatic subjects.

SALIVARY CORTISOL AND METABOLIC SYNDROME COMPONENT'S ASSOCIATION.

BACKGROUND: Actually the lifestyle exposes the population to several risk factors related to alimentary habits and less physical activity that contributes to chronic diseases appearance worldwide. AIM: To analyze the association between salivary cortisol and the components of metabolic syndrome. METHODS: This is a cross-sectional study. As part of it, 28 individuals aged 30-59 years presenting three or more of the following findings: CA: ≥88 cm for women and ≥102 cm for men; SBP>130 mmHg and DBP>85 mmHg; GL>100 mg/dl; TG>150 mg/dl; HDL<40 mg/dl for men and <50 mg/dl for women. Was performed analysis of salivary cortisol (by radioimmunoassay) from 25 salivary samples collected throughout the day, for evaluating changes in the circadian rhythm of this hormone (8AM, noon and 8PM). RESULTS: 28 evaluated individuals had a mean age of 51.9±7.5 years, mostly women (64.3%) and a mean of BMI 33.6±3.2 kg/m². The cortisol level from the 8AM averaged 18.7±4.8 ng/dlL. Individuals with FPG>110mg/dl, have significantly lower average levels of cortisol than ones with FPG <110 (12.8±5,2 vs. 17.3±4.2). Significant correlations were HOMA vs. WC (r=0,465; p˂0,005) and TG (r=0,473; p˂0,005), WC vs. FG (r=0,446; p˂0,005) and BMI (r=0,730; p˂0.0001); TG vs. HDL (r=0,441 p˂0,005) and FG (r=0,440; p˂0,005). CONCLUSION: Morning salivary cortisol in subjects with chronically elevated blood glucose can represent a downregulation of the hypothalamic-pituitary adrenal axis. This is an important finding not yet well investigated.