Distal intestinal obstruction syndrome. Report of two cases with cystic fibrosis Distal Intestinal Obstruction Syndrome (DIOS) has a 16% incidence among patients with Cystic Fibrosis (CF). It is characterized by an intestinal obstruction secondary to fecal impaction in distal ileum or cecum. We report two adult patients with DIOS. A female with CF and subjected to a lung transplantation at the age of 13 years. Five years later, she consulted for an intestinal obstruction. She was treated conservatively with a good clinical evolution. She had a new episode of DIOS eight months later, that was also treated conservatively. A 31 year-old male, subjected to bilateral lung transplantation nine years before, that was admitted to the hospital for a bronchiolitis. Three days after admission he started with a intestinal obstruction, that was diagnosed as a DIOS. He was managed conservatively with a good clinical response.
Reference equations for spirometry values. Should be time for adopting the Global Lung Function Initiative equations?ATS/ERS recommend the use of national reference values for the interpretation of spirometry. Reference values were published (2014) in general adult Chilean population, which are different from those of Knudson currently in use. However, most pulmonary function laboratories continue to use these latter equations. Multi-ethnic Global Lung Function Initiative (GLI) equations were published (2012) in order to standardize the interpretation of pulmonary function tests worldwide. Our objective was to evaluate the agreement in the spirometric reports between the most used equations in Chile with those from GLI. Methods: We compared the agreement in the interpretation of the spirometric pattern (normal, obstructive and restrictive) and the degree of alteration between GLI with Gutiérrez 2014, with Knudson and with NHANES III according to recommendations of the Chilean Society of Respiratory Diseases, through the Kappa concordance coefficient (K). The sample correspond to 315 adults over 40 years of age (55% women, 59.3 ± 9.2 years-old), smokers or ex-smokers, healthy or with COPD, who underwent spirometry with a bronchodilator as part of a respiratory check-up. Differences were plotted using the Bland-Altman method. Results: agreement for pattern between GLI with Gutiérrez 2014, with Knudson and with NHANES III was good (K = 0.73, 0.71 and 0.77 respectively) and also was good for the pattern and degree of alteration (K = 0.68, 0.67 and 0.76 respectively). Conclusions: We found a good agreement between the equations most used in Chile and those from the GLI, for a sample that includes subjects with and without lung disease, smokers and ex-smokers.
CLINICAL AND RADIOLOGICAL DIAGNOSIS OF COMMUNITY-ACQUIRED PNEUMONIA IN ADULTSCommunity acquired pneumonia in adults is an acute disease characterized by worsening in general conditions, fever, chills, cough, mucopurulent sputum and dyspnea; associated with tachycardia, tachypnea, fever and focal signs in pulmonary examination. The probability of pneumonia in a patient with acute respiratory symptoms depends on the disease prevalence in the environment where it is acquired and on clinical features. It is estimated that pneumonia prevalence is 3-5% in patients with respiratory disease seen in outpatient facilities. Clinical diagnosis of pneumonia without radiological confirmation lacks specificity because clinical presentation (history and physical examination) does not allow to differentiate pneumonia from other acute respiratory diseases (upper respiratory infections, bronchitis, influenza). Diagnosis must be based in clinical-radiological findings: clinical history and physical examination suggest the presence of pulmonary infection but accurate diagnosis is established when chest X ray confirms the existence of pulmonary infiltrates. Clinical findings and chest X ray do not permit to predict with certainty the etiology of pulmonary infection.Radiology is useful to confirm clinical suspicion, it establishes pneumonia location, its extension and severity; furthermore, it allows differentiation between pneumonia and other diseases, to detect possible complications, and may be useful in follow up of high risk patients. The resolution of radiological infiltrates often ensues several weeks or months after clinical recovery, especially in the elderly and in multilobar pneumonia cared for in intensive care units.
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