Efectos de la antibioterapia y la técnica fisioterápica respiratoria en pacientes con fibrosis quística tratados por exacerbación pulmonar aguda: estudio experimental

Introduction

Intravenous antibiotics in combination with intensive respiratory physiotherapy were evaluated for acute lung exacerbations in chronic infections of Pseudomonas aeruginosa in cystic fibrosis patients. Forced expiratory technique (FET) was assessed during hospital stay and discharge. The aim of this study was 1) to evaluate the immediate effects of FET and of 2) Intravenous antibiotics in combination with daily respiratory physiotherapy (IA+RPT) on parameters of lung function, body anthropometry and clinical scores of cystic fibrosis patients with acute lung exacerbation with chronic infection by Pseudomonas aeruginosa, during hospital stay and at hospital discharge after clearing the infection.

Patients and method

Eighteen patients between 7–28 years old were included in a prospective non-controlled clinical study. Body anthropometry values, Cystic Fibrosis Clinical Score (CFCS) exacerbation, Cystic Fibrosis Foundation Score (CFFS), and severity scores (SS) were evaluated before and after admission. Oxygen saturation (SpO₂), heart (HR) and respiratory rate (RR) were evaluated before and after FET.

Results

CFCS (32.4+7.2) and CFFS (6.4+1.7) had decreased at hospital discharge for 18.9+3.3 and 0.3+0.5, respectively (p<0.001). IA+ RPT reduced RR means (p=0.003) and increased SpO₂ (p=0.006), forced expiration volume at 1 min (FEV₁) (p=0.021) and nutritional values (p=0.002). During admission, FET immediately improved HR (p=0.028), RR (p=0.001) and SpO₂ (p=0.015), despite significant maximum voluntary ventilation reduction (p=0.028); after the infection was treated the FET did not significantly alter parameters.

Conclusion

IA+RPT improved clinical conditions of cystic fibrosis patients. FET improved cardiorespiratory variables of patients at risk for infection.     

Growth hormone in children and adolescents with cystic fibrosis

The recombinant human growth hormone (rhGH) can improve weight gain, physical growth, clinical and lung in cystic fibrosis (CF). However, the routine use, although promising, is not established in the literature. The objective of this study was to assess the benefits of rhGH in children and adolescents with CF. We conducted a systematic review in the database PubMed, Lilacs, SciELO and Cochrane, in the period 2000-2010, using the keywords: "cystic fibrosis", "growth hormone", "children" and "adolescents". We found 77 articles and included 11 randomized controlled trials, with 290 children and adolescents with CF. The short-term use (1-24 months) of rhGH improved the height, weight, growth rate, bone mineral content and components of pulmonary function. Adverse effects, like diabetes, were not observed in the studies. The short-term use of rhGH improved growth and body composition in patients with CF.     

Pulmonary complications in patients with antibody deficiency

ObjectiveThe aim of this study was to evaluate pulmonary complications in patients with primary antibody deficiency (X-linked agammaglobulinaemia [XLA] and common variable immunodeficiency [CVID]).MethodsThirty patients over six years of age regularly followed in a reference out-patient clinic on primary immunodeficiency were studied. All of them have been treated with intravenous immunoglobulin (IVIG) replacement therapy. Pulmonary complications were evaluated analysing clinical data (medical records review), lung function test (spirometry) and pulmonary imaging (chest computed tomography [CCT]).ResultsPatients with normal CCT (N=14) and those with abnormal CCT (N=16) have shown no differences regarding the age at onset of symptoms, age of diagnosis, and duration of IVIG treatment. The mean number of pneumonia episodes before IVIG replacement was significantly higher among patients with abnormal CCT (4 vs 7 episodes, p=0.008). CCT abnormalities observed in 16 patients were: bronchiectasis (12/16); peribronchial thickening (3/16); air trapping (5/16); lung volume reduction (4/16); atelectasis (2/16), follicular bronchiolitis and ground-glass abnormality (2/16) and parenchyma nodule (1/16). Lung function tests showed ventilatory disturbance in 18/30: obstructive pattern in 38.8%, restrictive pattern in 44.4%, and mix pattern in 16.7%. There were no significant differences in lung function between those with and without CCT abnormalities. Negative significant correlations were observed between lung function and number of episodes of pneumonia. Chronic persistent cough was associated with a reduction in lung function.ConclusionsPulmonary complications are not rare in patients with antibody deficiencies and they must be monitored.     

Corporal fat distribution and lipidic and glicemic profiles of HIV-infected patients

The aims of this study were to describe anthropometric data and glycemic and lipidic profiles of HIV-infected patients treated or not with antiretrovirals (ARV) drugs, and to assess association between these drugs and body composition changes, lipid and glucose homeostasis disturbances. There were 176 patients included (133 ARV-treated patients and 43 ARV-na?ve). The patients were submitted to clinical evaluation, laboratorial analysis, ultrasonographic measurements, bioelectrical impedance analysis and skin folds thickness measurements. The ARV-treated group showed higher waist-to-hip ratio (p= 0.0002), higher intra-abdominal fat thickness measured by ultrasonography (p= 0.003) and lower bicipital (p= 0.01) and tricipital (p= 0.0002) skin folds. This group also showed higher triglyceride (p= 0.0002), total cholesterol (p= 0.00007), HDL cholesterol (p= 0.009), glucose measurements one hour (p= 0.01) and two hours (p= 0.001) after dextrose load, higher levels of fasting insulin (p= 0.03) and higher HOMAR index (p= 0.02). The antiretroviral drugs are associated with increased visceral fat and decreased peripheral fat pads. Beside that, these drugs are associated with atherogenic lipid profile and insulin resistance, two independent risk predictors of cardiovascular disease.     

Brazilian guidelines for the diagnosis and treatment of hereditary angioedema

Hereditary angioedema is an autosomal dominant disease characterized by edema attacks with multiple organ involvement. It is caused by a quantitative or functional deficiency of the C1 inhibitor, which is a member of the serine protease inhibitor family. Hereditary angioedema is unknown to many health professionals and is therefore an underdiagnosed disease.The causes of death from hereditary angioedema include laryngeal edema with asphyxia. The estimated mortality rate in patients in whom the disease goes undetected and who are therefore incorrectly treated is 25-40%. In addition to edema of the glottis, hereditary angioedema often results in edema of the gastrointestinal tract, which can be incapacitating. Patients with hereditary angioedema may undergo unnecessary surgical interventions because the digestive tract can be the primary or only organ system involved, thus mimicking acute surgical abdomen. It is estimated that patients with hereditary angioedema experience some degree of disability 20-100 days per year.The Experts in Clinical Immunology and Allergy of the “Associação Brasileira de Alergia e Imunopatologia - ASBAI” developed these guidelines for the diagnosis, therapy, and management of hereditary angioedema.     

Effects of preoperative inspiratory muscle training in obese women undergoing open bariatric surgery: respiratory muscle strength, lung volumes, and diaphragmatic excursion

OBJECTIVE:

To determine whether preoperative inspiratory muscle training is able to attenuate the impact of surgical trauma on the respiratory muscle strength, in the lung volumes, and diaphragmatic excursion in obese women undergoing open bariatric surgery.

DESIGN:

Randomized controlled trial.

SETTING:

Meridional Hospital, Cariacica/ES, Brazil.

SUBJECTS:

Thirty-two obese women undergoing elective open bariatric surgery were randomly assigned to receive preoperative inspiratory muscle training (inspiratory muscle training group) or usual care (control group).

MAIN MEASURES:

Respiratory muscle strength (maximal static respiratory pressure – maximal inspiratory pressure and maximal expiratory pressure), lung volumes, and diaphragmatic excursion.

RESULTS:

After training, there was a significant increase only in the maximal inspiratory pressure in the inspiratory muscle training group. The maximal expiratory pressure, the lung volumes and the diaphragmatic excursion did not show any significant change with training. In the postoperative period there was a significant decrease in maximal inspiratory pressure in both the groups. However, there was a decrease of 28% in the inspiratory muscle training group, whereas it was 47% in the control group. The decrease in maximal expiratory pressure and in lung volumes in the postoperative period was similar between the groups. There was a significant reduction in the measures of diaphragmatic excursion in both the groups.

CONCLUSION:

The preoperative inspiratory muscle training increased the inspiratory muscle strength (maximal inspiratory pressure) and attenuated the negative postoperative effects of open bariatric surgery in obese women for this variable, though not influencing the lung volumes and the diaphragmatic excursion.