Experiences in elderly people with chronic obstructive pulmonary disease in relation to the use of long-term home oxygen therapy: a qualitative study about feelings attributed to therapy.

BACKGROUND: Elderly people are more likely to suffer severe chronic obstructive pulmonary disease (COPD) and require long-term home oxygen therapy (LTOT) as part of their treatment. LTOT has advantages such as improvement in symptoms, but there are also disadvantages such as physical barriers, psychosocial barriers and emotional challenges. The aim of this study is to understand the experiences of elderly people with COPD using LTOT with respect to their feelings attributed to therapy. METHODS: Qualitative study. Seven semidirected interviews were conducted with patients with a confirmed COPD diagnosis who used LTOT and were treated at an outpatient service. The content analysis technique was applied with the support of WebQDA software 2.0. RESULTS: Three categories emerged that were associated with the use of LTOT: (1) poor self-image; (2) feelings of sadness and (3) the impact of LTOT on others such as family and friends. CONCLUSIONS: LTOT in elderly people with COPD was associated with a poor self-image, feelings of sadness and impacted on others apart from the patient. When LTOT is prescribed, healthcare practitioners should proactively address these concerns to minimise the negative biopsychosocial experiences caused by LTOT.

Food Intolerance 1 Year After Banded Roux-En-Y Gastric Bypass.

The purpose of this study is to evaluate the food intolerance after banded Roux-en-Y gastric bypass (RYGB), correlating the data of food ingestion. METHODS: This is an observational prospective study, which evaluated the individuals before and 3, 6, and 12 months after banded RYGB. We performed an anthropometric evaluation and an assessment of the habitual food ingestion and applied a food tolerance questionnaire. RESULTS: The study group was comprised of 75 individuals, 89% of them female, with a percentual weight loss of 29.73 ± 6.79%. The observed results were that food intolerance increased over time and 1 year after surgery, only 2.7% reported to ingest any type of food, while the greatest difficulty was related to red meat (80%). Regarding vomits, after surgery, this proportion significantly increased after 3, 6, and 12 months. Preoperatively, the mean protein ingestion was 98 g, which decreased to 50 g after 3 and 6 months and to 51 g after 12 months. As a conclusion, food intolerance significantly increased following banded RYGB, leading to a crescent dissatisfaction regarding food and an increase in the vomits frequency.

Bilevel positive airway pressure in two moments after bariatric surgery.

OBJECTIVE: To investigate the use of Bilevel Positive Airway Pressure (BiPAP) in morbidly obese individuals in two moments following bariatric surgery (Roux-en-Y gastric bypass): post-anesthetic recovery (PAR) and first postoperative day (1PO). DESIGN: Randomized and blinded clinical trial. METHODS: We studied 40 morbidly obese individuals aged between 25 and 55 years who underwent pulmonary function test and chest X-ray preoperatively, and on the day of discharge (2nd day after surgery). They were randomly allocated into two groups: PAR-G (BiPAP in PAR for one hour), and 1PO-G (BIPAP for one hour on the 1PO). RESULTS: In the PAR-G and 1PO-G, respectively there were significant reductions in slow vital capacity (SVC) (p=0.0007 vs. p<0.0001), inspiratory reserve volume (IRV) (p=0.0016 vs. p=0.0026), and forced vital capacity (FVC) (p=0.0013 vs. p<0.0001) and expiratory reserve volume (ERV) was maintained only for the PAR-G (p=0.4446 vs. p=0.0191). Comparing the groups, the SVC (p=0.0027) and FVC (p=0.0028) showed a significant difference between the treatments, while the PAR-G showed smaller declines in these capacities. The prevalence of atelectasis was 10% for the PAR-G and 30% for the 1PO-G (p=0.0027). CONCLUSION: Thus, the use of BiPAP in PAR can promote restoration of ERV and contribute to the reduction of atelectasis.

CORRELATION BETWEEN NONALCOHOLIC FATTY LIVER DISEASE FEATURES AND LEVELS OF ADIPOKINES AND INFLAMMATORY CYTOKINES AMONG MORBIDLY OBESE INDIVIDUALS.

BACKGROUND: Nonalcoholic fatty liver disease (NAFLD) is the commonest hepatopathy worldwide. OBJECTIVE: To investigate the correlations between NAFLD histopathological features and the levels of adipokines (adiponectin, leptin, and resistin) and circulating inflammatory markers (interleukin-6 [IL-6], interleukin-8 [IL-8], tumor necrosis factor alpha [TNF-α], and C-reactive protein [CRP]). METHODS: This is an exploratory cross-sectional study, which enrolled 19 women with obesity who underwent bariatric surgery. Biochemical characteristics evaluated included the levels of adiponectin, leptin, resistin, IL-6, IL-8, TNF-α, and CRP. NAFLD was assessed through histological examination of liver biopsies carried out during the surgical procedures. RESULTS: The mean age of the study group was 37.3±8.2 years old; mean BMI was 36.2±2.5 kg/m2. Among individuals with liver fibrosis, the levels of IL-8 were significantly higher (24.4 ± 9.7 versus 12.7 ± 6.6; P=0.016726). The intensity of fibrosis presented a significant negative correlation with the levels of adiponectin (R= -0.49379; P=0.03166); i.e. the higher the levels of adiponectin, the lower the intensity of fibrosis. The intensity of steatohepatitis presented a significant negative correlation with the levels of adiponectin (R= -0.562321; P=0.01221); this means that the higher the levels of adiponectin, the lower the intensity of steatohepatitis. CONCLUSION: Adiponectin levels were inversely correlated with the severity of fibrosis and steatohepatitis, whereas IL-8 levels were higher in individuals with liver fibrosis among individuals with obesity and NAFLD undergoing bariatric surgery. The use of these markers to assess NAFLD may bring significant information within similar populations.

Influence of weight loss on pulmonary function and levels of adipokines among asthmatic individuals with obesity: One-year follow-up.

BACKGROUND: Individuals with obesity are more likely to develop asthma, but the exact mechanism is still uncertain and several hypotheses have been raised, such as the release of inflammatory mediators secreted by adipose tissue. OBJECTIVE: To assess the effects of weight loss in patients submitted to bariatric surgery on pulmonary and systemic inflammation. METHOD: The study evaluated patients undergoing bariatric surgery (Roux-en-Y gastric bypass) with the diagnosis of asthma, except smokers. The patients were evaluated at the time of entry into a preoperative weight loss group (T1), just before bariatric surgery (T2), six months after surgery (T3), and 12 months after surgery (T4). The following were measured: anthropometric data, dosage of systemic inflammatory markers by means of blood collection, pulmonary inflammatory markers obtained by induced sputum collection, pulmonary function parameters, and asthma activity assessed by a Asthma Control Test (ACT) questionnaire. RESULTS: Nineteen patients participated in the study. There were significant reductions in the systemic levels of interleukin (IL)-8 (p = 0.002), C-reactive protein (CRP) (p = 0.003), leptin (p = 0.001) and tumor necrosis factor (TNF)-α (p = 0.007), and significant increase in the systemic levels of IL-6 (p = 0.004) over time and adiponectin in T2 (p = 0.025). In regards to pulmonary inflammation, there were significant reductions in the sputum levels of TNF-α (p < 0.001). There was no significant improvement of the pulmonary function parameters (p > 0.05) and significant improvement in asthma activity scores (p < 0.0001). CONCLUSION: Weight loss was associated with significant changes in the systemic and pulmonary inflammatory profiles of individuals with asthma, leading to a better asthma control as a result of an increase in some anti-inflammatory mediators and a reduction of pro-inflammatory mediators.

Analysis of quality of life among asthmatic individuals with obesity and its relationship with pulmonary function: cross-sectional study.

CONTEXT AND OBJECTIVE:: The combined effect of obesity and asthma may lead to significant impairment of quality of life (QOL). The aim here was to evaluate the prevalence of asthma among obese individuals, characterize the severity of impairment of quality of life and measure its relationship with pulmonary function. DESIGN AND SETTING:: Observational cross-sectional study in public university hospital. METHODS:: Morbidly obese individuals (body mass index > 40 kg/m2) seen in a bariatric surgery outpatient clinic and diagnosed with asthma, were included. Anthropometric data were collected, the Standardized Asthma Quality of Life Questionnaire (AQLQ(S)) was applied and spirometry was performed. The subjects were divided into two groups based on the median of the score in the questionnaire (worse < 4 and better > 4) and were compared regarding anthropometric data and pulmonary function. RESULTS:: Among the 4791 individuals evaluated, 219 were asthmatic; the prevalence of asthma was 4.57%. Of these, 91 individuals were called to start multidisciplinary follow-up during the study period, of whom 82 answered the questionnaire. The median score in the AQLQ(S) was 3.96 points and, thus, the individuals were classified as having moderate impairment of their overall QOL. When divided according to better or worse QOL, there was a statistically difference in forced expiratory flow (FEF) 25-75%, with higher values in the better QOL group. CONCLUSION:: The prevalence of asthma was 4.57% and QOL was impaired among the asthmatic obese individuals. The worst QOL domain related to environmental stimuli and the best QOL domain to limitations of the activities. Worse QOL was correlated with poorer values for FEF 25-75%.

Obstructive sleep apnea syndrome among obese individuals: A cross-sectional study.

INTRODUCTION: The obstructive sleep apnea syndrome (OSAS) is a respiratory illness, characterized by recurrent episodes of apnea and hypopnea, leading to reduction or cessation of the airflow. Obesity is one of the major risk factors for the development of OSAS. To help in the diagnosis of this disease, easily applicable and low-cost questionnaries were developed, such as the Berlin Questionnaire (BQ). OBJECTIVE: To evaluate the efficacy of the BQ for the screening of OSAS among candidates to bariatric surgery in a multidisciplinary preoperative program. METHOD: This is an observational, descriptive and cross-sectional study which evaluated obese individuals that were being prepared for bariatric surgery by means of the BQ. RESULTS: BQ was able to detect that minimal variations in the body mass index, neck circumference and hip-to-waist ratio lead to changes in the risk to develop OSAS; the higher the values of these variables, the higher the risk for OSAS development. CONCLUSION: BQ was an efficient and reliable tool to demonstrate the high risk for OSAS development in individual with obesity.

[Analysis of the prevalence of atelectasis in patients undergoing bariatric surgery]. / Análise da prevalência de atelectasia em pacientes submetidos à cirurgia bariátrica.

BACKGROUND AND OBJECTIVE: To observe the prevalence of atelectasis in patients undergoing bariatric surgery and the influence of the body mass index (BMI), gender and age on the prevalence of atelectasis. METHOD: Retrospective study of 407 patients and reports on chest X-rays carried out before and after bariatric surgery over a period of 14 months. Only patients who underwent bariatric surgery by laparotomy were included. RESULTS: There was an overall prevalence of 37.84% of atelectasis, with the highest prevalence in the lung bases and with greater prevalence in women (RR=1.48). There was a ratio of 30% for the influence of age for individuals under the age of 36, and of 45% for those older than 36 (RR=0.68). There was no significant influence of BMI on the prevalence of atelectasis. CONCLUSION: The prevalence of atelectasis in bariatric surgery is 37% and the main risk factors are being female and aged over 36 years.

Analysis of the prevalence of atelectasis in patients undergoing bariatric surgery.

BACKGROUND AND OBJECTIVE: To observe the prevalence of atelectasis in patients undergoing bariatric surgery and the influence of the body mass index (BMI), gender and age on the prevalence of atelectasis. METHOD: Retrospective study of 407 patients and reports on chest X-rays carried out before and after bariatric surgery over a period of 14 months. Only patients who underwent bariatric surgery by laparotomy were included. RESULTS: There was an overall prevalence of 37.84% of atelectasis, with the highest prevalence in the lung bases and with greater prevalence in women (RR=1.48). There was a ratio of 30% for the influence of age for individuals under the age of 36, and of 45% for those older than 36 (RR=0.68). There was no significant influence of BMI on the prevalence of atelectasis. CONCLUSION: The prevalence of atelectasis in bariatric surgery is 37% and the main risk factors are being female and aged over 36 years.

[Use of positive pressure in pre and intraoperative of bariatric surgery and its effect on the time of extubation]. / Utilização da pressão positiva no pré e no intraoperatório de cirurgia bariátrica e seus efeitos sobre o tempo de extubação.

BACKGROUND AND OBJECTIVE: to investigate the influence of intraoperative and preoperative airway positive pressure in the time of extubation in patients undergoing bariatric surgery. METHOD: Randomized clinical trial, in which 40 individuals with a body mass index between 40 and 55kg/m(2), age between 25 and 55 years, nonsmokers, underwent bariatric surgery type Roux-en-Y gastric bypass by laparotomy and with normal preoperative pulmonary function were randomized into the following groups: G-pre (n = 10): individuals who received treatment with noninvasive positive pressure before surgery for one hour, G-intra (n = 10): individuals who received positive end-expiratory pressure of 10cm H2O throughout the surgical procedure and G-control (n = 20): not received any pre or intraoperative intervention. Following were recorded: time between induction of anesthesia and extubation, between the end of anesthesia and extubation, duration of mechanical ventilation, and time between extubation and discharge from the Post-Anesthetic Recovery. RESULTS: there was no statistical difference between groups. However, when applied to the Cohen coefficient, the use of positive end-expiratory pressure of 10cm H2O during surgery showed a large effect on the time between the end of anesthesia and extubation. About this same time, the treatment performed preoperatively showed moderate effect. CONCLUSION: The use of positive end-expiratory pressure of 10cm H2O in the intraoperative and positive pressure preoperatively, influenced the time of extubation of patients undergoing bariatric surgery.

Use of positive pressure in the bariatric surgery and effects on pulmonary function and prevalence of atelectasis: randomized and blinded clinical trial.

BACKGROUND: In surgical procedures, obesity is a risk factor for the onset of intra and postoperative respiratory complications. AIM: Determine what moment of application of positive pressure brings better benefits on lung function, incidence of atelectasis and diaphragmatic excursion, in the preoperative, intraoperative or immediate postoperative period. METHOD: Randomized, controlled, blinded study, conducted in a hospital and included subjects with BMI between 40 and 55 kg/m2, 25 and 55 years, underwent bariatric surgery by laparotomy. They were underwent preoperative and postoperative evaluations. They were allocated into four different groups: 1) Gpre: treated with positive pressure in the BiPAP mode (Bi-Level Positive Airway Pressure) before surgery for one hour; 2) Gpos: BIPAP after surgery for one hour; 3) Gintra: PEEP (Positive End Expiratory Pressure) at 10 cmH2O during the surgery; 4) Gcontrol: only conventional respiratory physiotherapy. The evaluation consisted of anthropometric data, pulmonary function tests and chest radiography. RESULTS: Were allocated 40 patients, 10 in each group. There were significant differences for the expiratory reserve volume and percentage of the predicted expiratory reserve volume, in which the groups that received treatment showed a smaller loss in expiratory reserve volume from the preoperative to postoperative stages. The postoperative radiographic analysis showed a 25% prevalence of atelectasis for Gcontrol, 11.1% for Gintra, 10% for Gpre, and 0% for Gpos. There was no significant difference in diaphragmatic mobility amongst the groups. CONCLUSION: The optimal time of application of positive pressure is in the immediate postoperative period, immediately after extubation, because it reduces the incidence of atelectasis and there is reduction of loss of expiratory reserve volume.

Quality of life in obese women with symptoms of urinary incontinence / Qualidade de vida em mulheres obesas com sintomas de incontinência urinária / Calidad de vida en mujeres obesas con síntomas de incontinencia urinaria

Abstract Introduction: Obesity is a contributing factor to the development of urinary incontinence (UI). Objective: The objective of this study was to evaluate the prevalence of UI symptoms in women with morbid obesity and their impacts on quality of life (QOL), correlating the influence of age and body mass index (BMI) with the presence of UI. Method: Sixty-five women undergoing preoperative bariatric surgery, aged 35.8 ± 9.97 years, with an average BMI of 45.04 ± 6.79 kg/m2 were asked about the presence of UI symptoms; when they answered positively, the King's Health Questionnaire (validated into Portuguese) was applied. The questionnaire was self-administered and all answers were assigned numerical scores. These scores were distributed according to quartiles and correlated with age and BMI. The level of hypothesis rejection was 5%, and analyses were performed using BioEstat software version 5.3. Results: Among 65 interviewees, 19 (29.23%) had symptoms of UI and went on to answer the questionnaire. The highest-scoring areas were "incontinence impact" (36.8) and "general health perception" (32.9). There was no significant correlation between questionnaire scores and BMI. In the association with age, the "incontinence impact" domain showed a significant, positive and moderate correlation (r = 0.52; p = 0.02). Conclusion: The prevalence of UI symptoms in the sample had a slight negative effect on QOL; however, UI associated with older ages significantly affected the QOL of the studied volunteers.

Resumo Introdução: A obesidade é considerada um fator contribuinte para o desenvolvimento da incontinência urinária (IU). Objetivo: O objetivo deste estudo foi avaliar a prevalência dos sintomas da IU em mulheres obesas mórbidas, seu impacto sobre a qualidade de vida (QV) e correlacionar a influência da idade e do índice de massa corporal (IMC) sobre a presença de IU. Método: Foram avaliadas, 65 mulheres, em pré-operatório de cirurgia bariátrica, com idade de 35,8±9,97 anos e IMC de 45,04±6,79 kg/m 2 sendo questionadas sobre sintomas de IU e, se confirmados, responderam ao King's Health Questionnaire, validado para o português. O questionário foi auto administrado e foram atribuídos valores numéricos às respostas, esses escores foram avaliados em quartis e correlacionados com a idade e o IMC. O nível de rejeição da hipótese foi 5% e as análises foram realizadas com o software BioEstat, versão 5.3. Resultados: Das 65 mulheres que foram entrevistadas, dezenove delas (29,23%) apresentaram os sintomas da IU e responderam ao questionário. Os domínios que apresentaram maior pontuação foram "impacto da IU" (36,8) e "percepção geral da saúde" (32,9). Não foi encontrada correlação significativa entre os escores do questionário e o IMC. Já na associação com a idade, o domínio "impacto da IU" apresentou correlação positiva, significativa e moderada (r = 0,52; p = 0,02). Conclusão: Diante dos achados, com a prevalência de sintomas de IU na amostra estudada, pode-se inferir que a IU compromete pouco a QV, entretanto o aumento da idade quando associada à IU pode afetar significativamente a QV de mulheres obesas classe II e III.

Resumen Introducción: La obesidad se considera un factor contribuyente para el desarrollo de la incontinencia urinaria (IU). Objetivo: El objetivo de este estudio fue evaluar la prevalencia de los síntomas de IU en las mujeres obesas morbidas, el impacto en la calidad de vida (CV), y la influencia de la edad y el índice de masa corporal (IMC) sobre la presencia de IU. Método: Fueron evaluados 65 mujeres, en preoperatorio de cirugía bariátrica, con edad de 35,8 ± 9,97 años e IMC de 45,04 ± 6,79 kg/m 2 siendo cuestionadas sobre síntomas de IU y, si confirmados, respondieron al King's Health Questionnaire, validado para el portugués. El cuestionario fue auto administrado y se asignaron valores numéricos a las respuestas, los escores fueron evaluados en cuartiles y correlacionados con la edad y el IMC. El nivel de rechazo del análisis fue del 5% y los análisis se realizaron con el software BioEstat, versión 5.3. Resultados: De las 65 mujeres que fueron entrevistadas, diecinueve de ellas (29,23%) presentaron los síntomas de la IU y respondieron al cuestionario. Los dominios que presentaron mayor puntuación fueron "impacto de la IU" (36,8) y "percepción general de la salud" (32,9). No se encontró correlación significativa entre los puntajes del cuestionario y el IMC. En la asociación con la edad, el dominio "impacto de la IU" presentó correlación positiva, significativa y moderada (r = 0,52; p = 0,02). Conclusión: Ante los hallazgos, con la prevalencia de síntomas de IU en la populacion estudiada, se puede inferir que la IU compromete poco la QV, sin embargo el aumento de la edad cuando está asociada a la IU puede afectar significativamente a la CV de mujeres obesas clase II y III.

Bilevel positive airway pressure in two moments after bariatric surgery

SUMMARY OBJECTIVE To investigate the use of Bilevel Positive Airway Pressure (BiPAP) in morbidly obese individuals in two moments following bariatric surgery (Roux-en-Y gastric bypass): post-anesthetic recovery (PAR) and first postoperative day (1PO). DESIGN Randomized and blinded clinical trial. METHODS We studied 40 morbidly obese individuals aged between 25 and 55 years who underwent pulmonary function test and chest X-ray preoperatively, and on the day of discharge (2nd day after surgery). They were randomly allocated into two groups: PAR-G (BiPAP in PAR for one hour), and 1PO-G (BIPAP for one hour on the 1PO). RESULTS In the PAR-G and 1PO-G, respectively there were significant reductions in slow vital capacity (SVC) (p=0.0007 vs. p<0.0001), inspiratory reserve volume (IRV) (p=0.0016 vs. p=0.0026), and forced vital capacity (FVC) (p=0.0013 vs. p<0.0001) and expiratory reserve volume (ERV) was maintained only for the PAR-G (p=0.4446 vs. p=0.0191). Comparing the groups, the SVC (p=0.0027) and FVC (p=0.0028) showed a significant difference between the treatments, while the PAR-G showed smaller declines in these capacities. The prevalence of atelectasis was 10% for the PAR-G and 30% for the 1PO-G (p=0.0027). CONCLUSION Thus, the use of BiPAP in PAR can promote restoration of ERV and contribute to the reduction of atelectasis.

RESUMO OBJETIVO Investigar o uso da pressão positiva em dois níveis nas vias aéreas (BiPAP) em obesos mórbidos em dois momentos após a cirurgia bariátrica (bypass gástrico em Y-de-Roux): recuperação pós-anestésica (RPA) e primeiro dia de pós-operatório (1PO). DESENHO Ensaio clínico randomizado e cego. MÉTODO Foram estudados 40 obesos mórbidos, com idade entre 25 e 55 anos, submetidos à prova de função pulmonar e radiografia de tórax no pré-operatório e no dia da alta (segundo dia de pós-operatório). Eles foram alocados aleatoriamente em dois grupos: G-RPA (BiPAP na RPA por uma hora) e G-1PO (BiPAP por uma hora no 1PO). RESULTADOS No G-RPA e G-1PO, respectivamente, houve reduções significativas na capacidade vital lenta (CVL) (p=0,0007 vs p<0,0001), volume de reserva inspiratório (VRI) (p=0,0016 vs p=0,0026) e capacidade vital forçada (CVF) (p=0,0013 vs p<0,0001). O volume de reserva expiratório (VRE) foi mantido apenas para o G-RPA (p=0,4446 vs p=0,0191). Comparando os grupos, a CVL (p=0,0027) e a CVF (p=0,0028) apresentaram diferenças significativas entre os tratamentos e o G-RPA apresentou menores declínios nessas capacidades. A prevalência de atelectasia foi de 10% para o G-RPA e 30% para o 1PO-G (p=0,0027). CONCLUSÃO O uso de BiPAP na RPA pode promover uma restauração do VRE e contribuir para a redução de atelectasias.

Correlações entre características da doença hepática gordurosa não-alcoólica e os níveis de adipocinas e citocinas inflamatórias em indivíduos submetidos à cirurgia bariátrica / Correlation between nonalcoholic fatty liver disease features and levels of adipokines and inflammatory cytokines among morbidly obese individuals

ABSTRACT BACKGROUND: Nonalcoholic fatty liver disease (NAFLD) is the commonest hepatopathy worldwide. OBJECTIVE: To investigate the correlations between NAFLD histopathological features and the levels of adipokines (adiponectin, leptin, and resistin) and circulating inflammatory markers (interleukin-6 [IL-6], interleukin-8 [IL-8], tumor necrosis factor alpha [TNF-α], and C-reactive protein [CRP]). METHODS: This is an exploratory cross-sectional study, which enrolled 19 women with obesity who underwent bariatric surgery. Biochemical characteristics evaluated included the levels of adiponectin, leptin, resistin, IL-6, IL-8, TNF-α, and CRP. NAFLD was assessed through histological examination of liver biopsies carried out during the surgical procedures. RESULTS: The mean age of the study group was 37.3±8.2 years old; mean BMI was 36.2±2.5 kg/m2. Among individuals with liver fibrosis, the levels of IL-8 were significantly higher (24.4 ± 9.7 versus 12.7 ± 6.6; P=0.016726). The intensity of fibrosis presented a significant negative correlation with the levels of adiponectin (R= -0.49379; P=0.03166); i.e. the higher the levels of adiponectin, the lower the intensity of fibrosis. The intensity of steatohepatitis presented a significant negative correlation with the levels of adiponectin (R= -0.562321; P=0.01221); this means that the higher the levels of adiponectin, the lower the intensity of steatohepatitis. CONCLUSION: Adiponectin levels were inversely correlated with the severity of fibrosis and steatohepatitis, whereas IL-8 levels were higher in individuals with liver fibrosis among individuals with obesity and NAFLD undergoing bariatric surgery. The use of these markers to assess NAFLD may bring significant information within similar populations.

RESUMO CONTEXTO: A doença hepática gordurosa não-alcoólica (DHGNA) é a hepatopatia mais comum no mundo. OBJETIVO: Investigar correlações entre as apresentações histopatológicas da DHGNA e os níveis de adipocinas (adiponectina, leptina e resistina) e marcadores sistêmicos de inflamação (interleucina-6 [IL-6], interleucina-8 [IL-8], fator de necrose tumoral alfa [TNF-α] e proteína C reativa [PCR]). MÉTODOS: Estudo transversal exploratório envolvendo 18 mulheres com obesidade submetidas à cirurgia bariátrica. As características bioquímicas avaliadas incluíram os níveis de adiponectina, leptina, resistina, IL-6, IL-8, TNF-α e PCR. A DHGNA foi avaliada através de exams histológicos de biópsias hepáticas realizadas durantes as cirurgias. RESULTADOS: A idade média foi 37,3±8,2 anos; o índice de massa corporal (IMC) médio foi 36,2±2,5 kg/m2. Entre os indivíduos com fibrose hepática, os níveis de IL-8 foram significativamente mais altos (24,4±9,7 versus 12,7±6,6; P=0,016726). A intensidade da fibrose apresentou uma correlação negativa significativa com os níveis de adiponectina (R= -0,49379; P=0,03166), demonstranso que, quanto maiores os níveis de adiponectina, menor a intensidade da fibrose. A intensidade da esteato-hepatite apresentou uma correlação negativa significativa com os níveis de adiponectina (R= -0,562321; P=0,01221), demonstrando que quanto mais altos os níveis de adiponectina, menor a intensidade da esteato-hepatite. CONCLUSÃO: Os níveis de adiponectina correlacionaram-se negativamente com a severidade da fibrose e da esteato-hepatite, enquanto os níveis de IL-8 foram maiores entre os indivíduos com fibrose hepática. O uso destes marcadores pode trazer informações significativas sobre a DHGNA em populações com obesidade.

Lung age in women with morbid obesity.

OBJECTIVE: To investigate the influence of morbid obesity on the lung age in women and to correlate with body mass, body mass index (BMI), and ventilatory variables. METHODS: This was a cross-sectional study with 72 morbidly obese women and a control group consisting of 37 normal weight women. The subjects performed a pulmonary function test to determine lung age, and the results were correlated to anthropometric variables and lung volumes. RESULTS: The morbidly obese group had significantly higher lung age (50.1±6.8 years) than the control group (38.8±11.4 years). There was no difference in chronological age between groups. There was a significant positive correlation among chronological age, body mass, BMI, and lung age (r=0.3647, 0.4182, and 0.3743, respectively). There was a negative correlation among forced vital capacity (FVC), forced expiratory volume in one second (FEV1), FEV1/FVC ratio, expiratory reserve volume (ERV), and lung age (r=-0.7565, -0.8769, --0.2723, and -0.2417, respectively). CONCLUSION: Lung age is increased in morbidly obese women and is associated with increased body mass and BMI.

Efeitos da pressão positiva nas vias aéreas no antes, durante e depois da cirurgia bariátrica: estudo randomizado e cego / Effects of positive pressure on respiratory tract in bariatric surgery pre-, intra- and postoperative: a randomized and blinded study / Efectos de la presión positiva en las vías aéreas en pre, intra y postoperatorio de la cirugía bariátrica: estudio randomizado y cego

A obesidade é, por si, um fator de risco independente para o surgimento de complicações respiratórias pós-operatórias. O objetivo do estudo foi investigar os efeitos da aplicação de pressão positiva antes, durante e depois do procedimento cirúrgico − em obesos submetidos à cirurgia bariátrica, sobre os volumes e capacidades pulmonares e a mobilidade toracoabdominal. Foram estudados 40 indivíduos com índice de massa corporal entre 40 e 55 kg/m2 e idade entre 25 e 55 anos, submetidos a avaliação pré e pós-operatória e alocados nos grupos: Gpré: tratamento com pressão positiva nas vias aéreas antes da cirurgia; Gpós: pressão positiva nas vias aéreas após a cirurgia; Gintra: pressão positiva nas vias aéreas durante a cirurgia; Gcontrole: fisioterapia convencional conforme rotina hospitalar. Foram avaliadas cirtometria toracoabdominal em três níveis e ventilometria: frequência respiratória, volume corrente, volume minuto e capacidade vital. Os resultados indicaram que, na análise intragrupo, houve aumento significativo da frequência respiratória e queda da capacidade vital para todos os grupos no pós-operatório. O volume corrente apresentou queda significativa somente no Gintra. Não houve diferença significativa nos três níveis de mobilidade toracoabdominal no Gpré. Concluiu-se que a utilização da pressão positiva no pós-operatório de cirurgia bariátrica não promove a manutenção da frequência respiratória e capacidade vital nos seus valores pré-operatórios. Entretanto, quando utilizada no pré-operatório, contribuiu para a manutenção do volume minuto, do volume corrente e da mobilidade toracoabdominal nos três níveis.

Obesity itself is an independent risk factor for the development of postoperative respiratory complications. The objective of the study was to investigate the effects of positive pressure application before, during and after the surgical procedure - in obese patients undergoing bariatric surgery, on lung volumes and capacities and thoracoabdominal mobility. 40 individuals with a Body Mass Index between 40 and 55 kg/m2 and between 25 and 55 years old were studied, submitted to pre- and postoperative evaluation and allocated to the groups: Gpré: treatment with positive airway pressure before surgery, Gpós: positive airway pressure after surgery. Gintra: positive airway pressure during surgery; Gcontrole: conventional physiotherapy according to hospital routine. Thoracoabdominal cirtometry at three levels, and ventilometry: respiratory rate, tidal volume, minute volume and vital capacity were evaluated. The results indicated that in the intragroup analysis there was a significant increase in respiratory rate and drop in vital capacity for all groups in the postoperative period. Tidal volume showed significant decrease only in Gintra. There was no significant difference in the three levels of thoracoabdominal mobility in the Gpré. It was possible to conclude that the use of positive pressure in the postoperative of bariatric surgery does not foster the maintenance of respiratory frequency and vital capacity in its preoperative values. However, when used in the preoperative, contributed to the maintenance of minute volume, tidal volume and thoracoabdominal mobility in the three levels.

La obesidad es, por sí, un factor de riesgo independiente para el surgimiento de complicaciones respiratorias postoperatorias El objetivo del estudio fue investigar los efectos de la aplicación de presión positiva antes, durante y después del procedimiento quirúrgico − en obesos sometidos a la cirugía bariátrica, sobre los volúmenes y capacidades pulmonares y la movilidad toracoabdominal. Fueron estudiados 40 individuos con Índice de Masa Corporal entre 40 y 55 kg/m2 y edad entre 25 y 55 años, sometidos a evaluación pre y postoperatoria y asignados en los grupos: Gpré: tratamiento con presión positiva de la vía aérea antes de la cirugía, Gpós: presión positiva de la vía aérea después de la cirugía. Gintra: Presión positiva de la vía aérea durante la cirugía. Gcontrole: fisioterapia convencional según rutina hospitalaria. Fueron evaluados: cirtometría toracoabdominal en tres niveles, y ventilometría: frecuencia respiratoria, volumen corriente, volumen minuto y capacidad vital. Los resultados indicaron que en el análisis intragrupo hubo aumento significativo de la frecuencia respiratoria y caída de la capacidad vital para todos los grupos en el postoperatorio. No hubo diferencia significativa en los tres niveles de movilidad toracoabdominal en el Gpré. Concluyóse que la utilización de la presión positiva en el postoperatorio de la cirugía bariátrica no promueve la manutención de la frecuencia respiratoria y capacidad vital en sus valores preoperatorios. Todavía cuando utilizada en el preoperatorio, contribuyó al mantenimiento del volumen minuto, del volumen corriente y de la movilidad toracoabdominal en los tres niveles.

Analysis of quality of life among asthmatic individuals with obesity and its relationship with pulmonary function: cross-sectional study / Análise da qualidade de vida de indivíduos asmáticos obesos e sua relação com a função pulmonar: estudo transversal

ABSTRACT CONTEXT AND OBJECTIVE: The combined effect of obesity and asthma may lead to significant impairment of quality of life (QOL). The aim here was to evaluate the prevalence of asthma among obese individuals, characterize the severity of impairment of quality of life and measure its relationship with pulmonary function. DESIGN AND SETTING: Observational cross-sectional study in public university hospital. METHODS: Morbidly obese individuals (body mass index > 40 kg/m2) seen in a bariatric surgery outpatient clinic and diagnosed with asthma, were included. Anthropometric data were collected, the Standardized Asthma Quality of Life Questionnaire (AQLQ(S)) was applied and spirometry was performed. The subjects were divided into two groups based on the median of the score in the questionnaire (worse < 4 and better > 4) and were compared regarding anthropometric data and pulmonary function. RESULTS: Among the 4791 individuals evaluated, 219 were asthmatic; the prevalence of asthma was 4.57%. Of these, 91 individuals were called to start multidisciplinary follow-up during the study period, of whom 82 answered the questionnaire. The median score in the AQLQ(S) was 3.96 points and, thus, the individuals were classified as having moderate impairment of their overall QOL. When divided according to better or worse QOL, there was a statistically difference in forced expiratory flow (FEF) 25-75%, with higher values in the better QOL group. CONCLUSION: The prevalence of asthma was 4.57% and QOL was impaired among the asthmatic obese individuals. The worst QOL domain related to environmental stimuli and the best QOL domain to limitations of the activities. Worse QOL was correlated with poorer values for FEF 25-75%.

RESUMO CONTEXTO E OBJETIVO: O efeito combinado de obesidade e asma pode levar a um comprometimento significativo da qualidade de vida (QV). O objetivo foi avaliar a prevalência de asma entre obesos, caracterizar a gravidade do comprometimento da QV e verificar sua relação com a função pulmonar. TIPO DE ESTUDO E LOCAL: Estudo transversal observacional em hospital universitário público. MÉTODOS: Foram incluídos indivíduos obesos mórbidos (indice de massa corporal > 40 kg/m2), acompanhados num ambulatório de cirurgia bariátrica e diagnosticados com asma. Foram coletados dados antropométricos e aplicado o Standardized Asthma Quality of Life Questionnaire (AQLQ (S)), bem como a espirometria. Os indivíduos foram divididos em dois grupos com base na mediana obtida no escore do questionário (pior < 4 e melhor = 4) e os grupos foram comparados aos dados antropométricos e função pulmonar. RESULTADOS: Dos 4.791 indivíduos avaliados, 219 eram asmáticos; a prevalência de asma foi de 4,57%. Destes, 91 indivíduos foram chamados para iniciar o acompanhamento multidisciplinar no período do estudo, sendo que 82 responderam ao questionário. A pontuação mediana do AQLQ (S) foi de 3,96 pontos, portanto, classificados com prejuízo moderado na QV global. Quando divididos por melhor ou pior QV, houve diferença estatística no fluxo expiratório forçado (FEF) 25-75%, com maior valor no grupo com melhor QV. CONCLUSÃO: A prevalência da asma na população estudada foi de 4,57% e há prejuízos na QV de obesos asmáticos, sendo o pior domínio de QV relacionado aos estímulos ambientais e o melhor domínio de QV relacionado às limitações das atividades. A pior QV se relacionou a piores valores de FEF 25-75%.

Obstructive sleep apnea syndrome among obese individuals: A cross-sectional study / Síndrome da apneia obstrutiva do sono em indivíduos portadores de obesidade: um estudo transversal

Summary Introduction: The obstructive sleep apnea syndrome (OSAS) is a respiratory illness, characterized by recurrent episodes of apnea and hypopnea, leading to reduction or cessation of the airflow. Obesity is one of the major risk factors for the development of OSAS. To help in the diagnosis of this disease, easily applicable and low-cost questionnaries were developed, such as the Berlin Questionnaire (BQ). Objective: To evaluate the efficacy of the BQ for the screening of OSAS among candidates to bariatric surgery in a multidisciplinary preoperative program. Method: This is an observational, descriptive and cross-sectional study which evaluated obese individuals that were being prepared for bariatric surgery by means of the BQ. Results: BQ was able to detect that minimal variations in the body mass index, neck circumference and hip-to-waist ratio lead to changes in the risk to develop OSAS; the higher the values of these variables, the higher the risk for OSAS development. Conclusion: BQ was an efficient and reliable tool to demonstrate the high risk for OSAS development in individual with obesity.

Resumo Introdução: A síndrome da apneia obstrutiva do sono (SAOS) é uma patologia respiratória, caracterizada por episódios recorrentes de apneia e hipopneia, resultando na cessação ou redução do fluxo aéreo. A obesidade é um dos principais fatores de risco para o desenvolvimento da SAOS. Foram criadas formas de auxiliar o diagnóstico da doença por meio de questionários de fácil aplicação e baixo custo, como o questionário de Berlim (QB). Objetivo: Avaliar a eficácia do QB para rastreamento do risco de desenvolvimento da SAOS em indivíduos portadores de obesidade que participaram do grupo multidisciplinar de preparo pré-operatório para cirurgia bariátrica do Hospital de Clínicas da Universidade Estadual de Campinas (HC-Unicamp). Método: O estudo foi observacional, descritivo e transversal, e avaliou portadores de obesidade que participavam do Programa multidisciplinar de preparo pré-operatório para cirurgia bariátrica do HC-Unicamp foram avaliados por meio do QB. Resultados: O QB foi capaz de detectar que mínimas oscilações no índice de massa corpórea (IMC), na circunferência cervical (Ccv), na circunferência da cintura e na relação cintura/quadril (RCQ) podem alterar o risco de desenvolvimento de SAOS, sendo que quanto maior esses valores, maior o risco de desenvolvimento de SAOS. Conclusão: O QB é uma ferramenta eficaz e fidedigna em demonstrar a prevalência do risco alto para o desenvolvimento da SAOS em indivíduos portadores de obesidade, dado esse que, quando correlacionado com IMC, aumento de idade, medida de cintura, Ccv e RCQ, faz o risco tender a aumentar de forma exponencial.

Analysis of the prevalence of atelectasis in patients undergoing bariatric surgery / Análise da prevalência de atelectasia em pacientes submetidos à cirurgia bariátrica

Abstract Background and objective: To observe the prevalence of atelectasis in patients undergoing bariatric surgery and the influence of the body mass index (BMI), gender and age on the prevalence of atelectasis. Method: Retrospective study of 407 patients and reports on chest X-rays carried out before and after bariatric surgery over a period of 14 months. Only patients who underwent bariatric surgery by laparotomy were included. Results: There was an overall prevalence of 37.84% of atelectasis, with the highest prevalence in the lung bases and with greater prevalence in women (RR = 1.48). There was a ratio of 30% for the influence of age for individuals under the age of 36, and of 45% for those older than 36 (RR = 0.68). There was no significant influence of BMI on the prevalence of atelectasis. Conclusion: The prevalence of atelectasis in bariatric surgery is 37% and the main risk factors are being female and aged over 36 years.

Resumo Justificativa e objetivo: Observar a prevalência de atelectasia em pacientes submetidos à cirurgia bariátrica e a influência do índice de massa corporal (IMC), do sexo e da idade sobre a prevalência de atelectasia. Método: Estudo retrospectivo de 407 pacientes e laudos de radiografias de tórax feitas antes e após a cirurgia bariátrica durante 14 meses. Apenas os pacientes submetidos à cirurgia bariátrica por laparotomia foram incluídos. Resultados: Houve uma prevalência geral de atelectasia de 37,84%, com maior prevalência nas bases pulmonares e em mulheres (RR = 1,48). Houve uma proporção de 30% para a influência da idade nos indivíduos com menos de 36 anos e de 45% naqueles com mais de 36 anos (RR = 0,68). Não houve influência significativa do IMC sobre a prevalência de atelectasia. Conclusão: A prevalência de atelectasia em cirurgia bariátrica é de 37% e os principais fatores de risco são sexo feminino e idade superior a 36 anos.