Identificação das variáveis associadas à mortalidade de pacientes internados em unidade de terapia intensiva adulto

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Fatores de predição de mortalidade em pacientes com insuficiência respiratória crônica em uso de oxigenoterapia domiciliar prolongada

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Ventilação oscilatória de alta frequência comparada com ventilação mecânica convencional associadas ao óxido nítrico inalatório: estudo randonizado e cruzado em crianças com insuficiência respiratória hipoxêmica aguda

Pós-graduação em Cirurgia Veterinária - FCAV

Evolução de pacientes portadores de peumopatias crônicas e hipoxemia transitória ao esforço tratados com oxigenoterapia domiciliar prolongada durante o sono e ao esforço

Pós-graduação em Fisiopatologia em Clínica Médica - FMB

Cor triatriatum sinister e hipertensão arterial pulmonar secundária em cão

This paper describes the occurrence of cor triatriatum sinister, a rare cardiac malformation in dogs, associated with pulmonary edema and pulmonary hypertension in a 5-year-old Poodle female with history of acute dyspnea and cyanosis. The animal presented acute respiratory failure, heart failure with low cardiac output, progressing to acute tubular necrosis and death. The diagnosis was made posmortem due to the clinical instability of the dog. This malformation was diagnosed by the subdivision of the left atrium into two compartments separated by an abnormal fibromuscular membrane, absence of structural abnormalities of the mitral valve and thickening of pulmonary artery tunica media associated with renal tubular degeneration. The occurrence of cor triatriatum in dogs is most common in the right atrium, defined as cor triatriatum dexter. Additionally, pulmonary arterial hypertension associated with this malformation is described only in humans with this heart defect.

Incentive spirometry for prevention of postoperative pulmonary complications in upper abdominal surgery

BackgroundThis is an update of a Cochrane Review first published in The Cochrane Library 2008, Issue 3.Upper abdominal surgical procedures are associated with a high risk of postoperative pulmonary complications. The risk and severity of postoperative pulmonary complications can be reduced by the judicious use of therapeutic manoeuvres that increase lung volume. Our objective was to assess the effect of incentive spirometry compared to no therapy or physiotherapy, including coughing and deep breathing, on all-cause postoperative pulmonary complications andmortality in adult patients admitted to hospital for upper abdominal surgery.ObjectivesOur primary objective was to assess the effect of incentive spirometry (IS), compared to no such therapy or other therapy, on postoperative pulmonary complications and mortality in adults undergoing upper abdominal surgery.Our secondary objectives were to evaluate the effects of IS, compared to no therapy or other therapy, on other postoperative complications, adverse events, and spirometric parameters.Search methodsWe searched the Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library 2013, Issue 8), MEDLINE, EMBASE, and LILACS (from inception to August 2013). There were no language restrictions. The date of the most recent search was 12 August 2013. The original search was performed in June 2006.Selection criteriaWe included randomized controlled trials (RCTs) of IS in adult patients admitted for any type of upper abdominal surgery, including patients undergoing laparoscopic procedures.Data collection and analysisTwo authors independently assessed trial quality and extracted data.Main resultsWe included 12 studies with a total of 1834 participants in this updated review. The methodological quality of the included studies was difficult to assess as it was poorly reported, so the predominant classification of bias was 'unclear'; the studies did not report on compliance with the prescribed therapy. We were able to include data from only 1160 patients in the meta-analysis. Four trials (152 patients) compared the effects of IS with no respiratory treatment. We found no statistically significant difference between the participants receiving IS and those who had no respiratory treatment for clinical complications (relative risk (RR) 0.59, 95% confidence interval (CI) 0.30 to 1.18). Two trials (194 patients) IS compared incentive spirometry with deep breathing exercises (DBE). We found no statistically significant differences between the participants receiving IS and those receiving DBE in the meta-analysis for respiratory failure (RR 0.67, 95% CI 0.04 to 10.50). Two trials (946 patients) compared IS with other chest physiotherapy. We found no statistically significant differences between the participants receiving IS compared to those receiving physiotherapy in the risk of developing a pulmonary condition or the type of complication. There was no evidence that IS is effective in the prevention of pulmonary complications.Authors' conclusionsThere is low quality evidence regarding the lack of effectiveness of incentive spirometry for prevention of postoperative pulmonary complications in patients after upper abdominal surgery. This review underlines the urgent need to conduct well-designed trials in this field. There is a case for large RCTs with high methodological rigour in order to define any benefit from the use of incentive spirometry regarding mortality.

Idiopathic pulmonary hemosiderosis: case report

OBJECTIVE: To alert pediatricians about the possibillity of childhood Idiopathic Pulmonary Hemosiderosis, in cases of anemia associated with chronic lung disease. METHODS: This article documents a case of Idiopathic Pulmonary Hemosiderosis in a 6 year-old child, with histopathological documentation, and reviews it against published literature. RESULTS: A 6 year-old child with history of anemia and lung disease characterized by wheezing, recurrent pneumonia and digital clubbing was admitted to the hospital for investigation, where he suffered sudden respiratory failure and hemoptysis.He was submitted to a lung biopsy which showed a histopathological diagnosis compatible with pulmonary hemosiderosis. Therapy with high doses of corticosteroids was initiated with a good early response. After two and a half months of therapy he had a new bleeding episode, culminating in death. CONCLUSIONS: Idiopathic Pulmonary Hemosiderosis should be included as a possible diagnosis of children with anemia and chronic lung disease. This case is a good example.

Síntese e caracterização de pequenos peptídeos lineares do veneno de Tityus serrulatus (Buthidae)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Early administration of inhaled nitric oxide to children with acute respiratory distress syndrome and its effects on oxygenation and ventilator settings: prospective preliminary report of ten patients

Aim. To establish a protocol for the early introduction of inhaled nitric oxide (iNO) therapy in children with acute respiratory distress syndrome (ARDS) and to assess its acute and sustained effects on oxygenation and ventilator settings.Patients and Methods. Ten children with ARDS, aged 1 to 132 months (median, 11 months), with arterial saturation of oxygen <88% while receiving a fraction of inspired oxygen (FiO(2)) 0.6 and a positive end-expiratory pressure of greater than or equal to 10 cm H2O were included in the study. The acute response to iNO was assessed in a 4-hour dose-response test, and positive response was defined as an increase in the PaO2/FiO(2) ratio of 10 mmHg above baseline values. Conventional therapy was not changed during the test. In the following days, patients who had shown positive response continued to receive the lowest iNO dose. Hemodynamics, PaO2/FiO(2), oxygenation index, gas exchange, and methemoglobin levels were obtained when needed. Inhaled nitric oxide withdrawal followed predetermined rules.Results. At the end of the 4-hour test, all the children showed significant improvement in the PaO2/FiO(2) ratio (63.6%) and the oxygenation index (44.9%) compared with the baseline values. Prolonged treatment was associated with improvement in oxygenation, so that FiO(2) and peak inspiratory pressure could be quickly and significantly reduced., No toxicity from methemoglobin or nitrogen dioxide was observed.Conclusion. Administration of iNO to children is safe. iNO causes rapid and sustained improvement in oxygenation without adverse effects. Ventilator settings can safely be reduced during iNO treatment.

Energy Metabolism in Cardiac Remodeling and Heart Failure

Fatty acids are the main substrates used by mitochondria to provide myocardial energy under normal conditions. During heart remodeling, however, the fuel preference switches to glucose. In the earlier stages of cardiac remodeling, changes in energy metabolism are considered crucial to protect the heart from irreversible damage. Furthermore, low fatty acid oxidation and the stimulus for glycolytic pathway lead to lipotoxicity, acidosis, and low adenosine triphosphate production. While myocardial function is directly associated with energy metabolism, the metabolic pathways could be potential targets for therapy in heart failure. © 2013 by Lippincott Williams & Wilkins.