Brazilian Journal of Pulmonology

ISSN (on-line): 1806-3756 | ISSN (printed): 1806-3713

SBPT

Publication continuous and bimonthly

SCImago Journal & Country Rank
Advanced Search

Search Results

The search for the author or contributors found : 5 results


Assessment of regional lung ventilation by electrical impedance tomography in a patient with unilateral bronchial stenosis and a history of tuberculosis

Avaliação da ventilação pulmonar regional por tomografia de impedância elétrica em paciente com estenose brônquica unilateral pós-tuberculose

Liégina Silveira Marinho, Nathalia Parente de Sousa, Carlos Augusto Barbosa da Silveira Barros, Marcelo Silveira Matias, Luana Torres Monteiro, Marcelo do Amaral Beraldo, Eduardo Leite Vieira Costa, Marcelo Britto Passos Amato, Marcelo Alcantara Holanda

J Bras Pneumol.2013;39(6):742-746

Abstract PDF PT PDF EN Portuguese Text

Bronchial stenosis can impair regional lung ventilation by causing abnormal, asymmetric airflow limitation. Electrical impedance tomography (EIT) is an imaging technique that allows the assessment of regional lung ventilation and therefore complements the functional assessment of the lungs. We report the case of a patient with left unilateral bronchial stenosis and a history of tuberculosis, in whom regional lung ventilation was assessed by EIT. The EIT results were compared with those obtained by ventilation/perfusion radionuclide imaging. The patient was using nasal continuous positive airway pressure (CPAP) for the treatment of obstructive sleep apnea syndrome. Therefore, we studied the effects of postural changes and of the use of nasal CPAP. The EIT revealed heterogeneous distribution of regional lung ventilation, the ventilation being higher in the right lung, and this distribution was influenced by postural changes and CPAP use. The EIT assessment of regional lung ventilation produced results similar to those obtained with the radionuclide imaging technique and had the advantage of providing a dynamic evaluation without radiation exposure.

 


Keywords: Tomography; Electric impedance; Positive-pressure respiration; Pulmonary ventilation; Airway obstruction; Tuberculosis, pulmonary.

 


Performance of ICU ventilators during noninvasive ventilation with large leaks in a total face mask: a bench study

Desempenho de ventiladores de UTI durante ventilação não invasiva com grandes vazamentos em máscara facial total: estudo em simulador mecânico

Maria Aparecida Miyuki Nakamura, Eduardo Leite Vieira Costa, Carlos Roberto Ribeiro Carvalho, Mauro Roberto Tucci

J Bras Pneumol.2014;40(3):294-303

Abstract PDF PT PDF EN Portuguese Text Appendix

Objective: Discomfort and noncompliance with noninvasive ventilation (NIV) interfaces are obstacles to NIV success. Total face masks (TFMs) are considered to be a very comfortable NIV interface. However, due to their large internal volume and consequent increased CO2 rebreathing, their orifices allow proximal leaks to enhance CO2 elimination. The ventilators used in the ICU might not adequately compensate for such leakage. In this study, we attempted to determine whether ICU ventilators in NIV mode are suitable for use with a leaky TFM. Methods: This was a bench study carried out in a university research laboratory. Eight ICU ventilators equipped with NIV mode and one NIV ventilator were connected to a TFM with major leaks. All were tested at two positive end-expiratory pressure (PEEP) levels and three pressure support levels. The variables analyzed were ventilation trigger, cycling off, total leak, and pressurization. Results: Of the eight ICU ventilators tested, four did not work (autotriggering or inappropriate turning off due to misdetection of disconnection); three worked with some problems (low PEEP or high cycling delay); and one worked properly. Conclusions: The majority of the ICU ventilators tested were not suitable for NIV with a leaky TFM.

 


Keywords: Ventilators, mechanical; Positive-pressure Respiration; Noninvasive ventilation; Equipment safety; Equipment failure; Masks.

 


Extracorporeal membrane oxygenation in severe hypoxemia: time for reappraisal?

Oxigenação extracorpórea por membrana na hipoxemia grave: hora de revermos nossos conceitos?

Luciano Cesar Pontes Azevedo, Marcelo Park, Eduardo Leite Vieira Costa, Edzângela Vasconcelos Santos, Adriana Hirota, Leandro Utino Taniguchi, Guilherme de Paula Pinto Schettino, Marcelo Brito Passos Amato, Carlos Roberto Ribeiro Carvalho

J Bras Pneumol.2012;38(1):7-12

Abstract PDF PT PDF EN Portuguese Text

In 2009, during the influenza A (H1N1) epidemic, there were many reported cases of pulmonary infection with severe hypoxemia that was refractory to the ventilatory strategies and rescue therapies commonly used to treat patients with severe acute respiratory distress syndrome. Many of those cases were treated with extracorporeal membrane oxygenation (ECMO), which renewed international interest in the technique. The Extracorporeal Support Study Group was created in order to practice ECMO and to employ it in the treatment of patients with severe hypoxemia. In this article, we discuss the indications for using ECMO and report the case of a patient with refractory hypoxemia who was successfully treated with ECMO.

 


Keywords: : Respiratory Insufficiency; Intensive Care Units; Extracorporeal Membrane Oxygenation.

 


Extracorporeal respiratory support in adult patients

Suporte respiratório extracorpóreo em pacientes adultos

Thiago Gomes Romano1,3, Pedro Vitale Mendes2,3, Marcelo Park2, Eduardo Leite Vieira Costa3,4

J Bras Pneumol.2017;43(1):60-70

Abstract PDF PT PDF EN Portuguese Text

In patients with severe respiratory failure, either hypoxemic or hypercapnic, life support with mechanical ventilation alone can be insufficient to meet their needs, especially if one tries to avoid ventilator settings that can cause injury to the lungs. In those patients, extracorporeal membrane oxygenation (ECMO), which is also very effective in removing carbon dioxide from the blood, can provide life support, allowing the application of protective lung ventilation. In this review article, we aim to explore some of the most relevant aspects of using ECMO for respiratory support. We discuss the history of respiratory support using ECMO in adults, as well as the clinical evidence; costs; indications; installation of the equipment; ventilator settings; daily care of the patient and the system; common troubleshooting; weaning; and discontinuation.

 


Keywords: Extracorporeal membrane oxygenation; Respiratory distress syndrome, adult; Hypoxia; Hypercapnia.

 


Tracheobronchomalacia in a patient on invasive mechanical ventilation: the role of electrical impedance tomography in its detection and positive end-expiratory pressure titration

Traqueobroncomalácia em paciente sob ventilação mecânica invasiva: o papel da tomografia de impedância elétrica na sua detecção e na titulação da pressão expiratória final positiva

Olívia Meira Dias1, Eduardo Leite Vieira Costa2, Daniel Antunes Silva Pereira3, Caroline Nappi Chaves3, Samia Zahi Rached3, Carmen Silvia Valente Barbas2

J Bras Pneumol.2015;41(2):203-205

PDF PT PDF EN Portuguese Text



 

 


The Brazilian Journal of Pulmonology is indexed in:

Latindex Lilacs SciELO PubMed ISI Scopus Copernicus pmc

Support

CNPq, Capes, Ministério da Educação, Ministério da Ciência e Tecnologia, Governo Federal, Brasil, País Rico é País sem Pobreza
Secretariat of the Brazilian Journal of Pulmonology
SCS Quadra 01, Bloco K, Salas 203/204 Ed. Denasa. CEP: 70.398-900 - Brasília - DF
Fone/fax: 0800 61 6218/ (55) (61) 3245 1030/ (55) (61) 3245 6218
E-mails: jbp@jbp.org.br
jpneumo@jornaldepneumologia.com.br

Copyright 2019 - Brazilian Thoracic Association

Logo GN1