Made available in DSpace on 2014-06-11T19:28:34Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-11Bitstream added on 2014-06-13T18:57:56Z : No. of bitstreams: 1 bertoletti_m_me_guara.pdf: 1431070 bytes, checksum: 5b8e46801dd377e4d6599b68338d5083 (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / A vibração torácica é uma técnica de fisioterapia respiratória utilizada para higienização brônquica, que facilita a remoção da secreção, evitando sua retenção e danos na função pulmonar, como na troca gasosa. Existe um grande número de pacientes com problemas respiratórios que se beneficiam desta técnica. O propósito deste trabalho é justamente analisar e mensurar a freqüência de oscilação da técnica de vibração torácica, realizada por diversos fisioterapeutas, que atuam em fisioterapia respiratória ou em outra área da fisioterapia, para que, por meio desses estudos possam verificar qual a freqüência da técnica de vibração torácica predominante, e se a freqüência obtida está próxima da freqüência da literatura técnica, uma vez que existem poucos trabalhos científicos em questão. A freqüência de vibração é medida em hertz (Hz). / The chest vibration is a technique of respiratory physiotherapy used in order to promote a bronquial cleaning, to facilitate the sputum removal of the secretion, preventing its retention and damages in the pulmonary function as in the gaseous exchange. A great number of patients with respiratory problems exists that are benefit of this technique. The intention of this work is exactly to analyze and to measure the frequency of oscillation of the technique of chest vibration, carried through by diverse physiotherapists, who act with in respiratory physiotherapy and that they act in another area of the physiotherapy, so that through these studies can verify which the frequency of the technique of predominant chest vibration between them, and if the gotten frequency is next to the frequency of literature, technique exists few scientific works in question. The vibration frequency is measured in hertz (Hz).

Este estudo visou investigar os efeitos funcionais de um programa de reeducação respiratória em idosos saudáveis previamente sedentários. Para tanto, o programa foi organizado e testado. O estudo foi desenvolvido no Laboratório de Fisioterapia em Reatividade Comportamental do Centro de Docência e Pesquisa em Fisioterapia da Faculdade de Medicina da USP. Foram sujeitos do estudo vinte idosos (mulheres), com idade média de 71 anos e três meses ± 2 anos e cinco meses, ativos na comunidade, livres de disfunções (cardiopulmonar, neurológica ou muscular) ou de doenças crônicas que afetassem a habilidade de exercitar-se. Após uma série de testes de avaliação da função respiratória (pré-teste), as participantes submeteram-se a um programa de reeducação respiratória, por quatro meses, duas vezes por semana, em sessões de uma hora. No final do treinamento, as participantes submeteram-se a nova avaliação de desempenho físico (pós-teste), quando se utilizou o mesmo protocolo do pré-teste. O programa produziu melhora nas variáveis funcionais avaliadas: mobilidade torácica, flexibilidade e pressões respiratórias máximas. A composição corporal não se alterou, como esperado. / This study aimed at assessing the effects of program of respiratory reeducation in healthy, previously sedentary old people. Program of respiratoy training was developed and tested. The study was carried out at the Laboratório de Fisioterapia em Reatividade Comportamental at the Centro de Docência e Pesquisa em Fisioterapia da Faculdade de Medicina da Universidade de São Paulo with 20 people (women) aged in average 71 years, active in their communities, and free from significant cardiovascular, pulmonary, neurological or muscle disfunction, or from chronic diseases that might affect the ability to practice exercises. After a series of resiratory function performance pre-tests, participants have undergone respiratory training for four months, in twice-weekly sessions of one hour. At the end of program all participants had their respiratory function evaluated (post-test). Six mouth and one year later, all the 20 subjects were again evaluated (post-tests). Training program was found to have brought respiratory function performance improvement: thoracic mobility, flexibility and maximal respiratory pressures. Body composition was unchanged as expected.

Este estudo visou investigar os efeitos funcionais de um programa de reeducação respiratória em idosos saudáveis previamente sedentários. Para tanto, o programa foi organizado e testado. O estudo foi desenvolvido no Laboratório de Fisioterapia em Reatividade Comportamental do Centro de Docência e Pesquisa em Fisioterapia da Faculdade de Medicina da USP. Foram sujeitos do estudo vinte idosos (mulheres), com idade média de 71 anos e três meses ± 2 anos e cinco meses, ativos na comunidade, livres de disfunções (cardiopulmonar, neurológica ou muscular) ou de doenças crônicas que afetassem a habilidade de exercitar-se. Após uma série de testes de avaliação da função respiratória (pré-teste), as participantes submeteram-se a um programa de reeducação respiratória, por quatro meses, duas vezes por semana, em sessões de uma hora. No final do treinamento, as participantes submeteram-se a nova avaliação de desempenho físico (pós-teste), quando se utilizou o mesmo protocolo do pré-teste. O programa produziu melhora nas variáveis funcionais avaliadas: mobilidade torácica, flexibilidade e pressões respiratórias máximas. A composição corporal não se alterou, como esperado. / This study aimed at assessing the effects of program of respiratory reeducation in healthy, previously sedentary old people. Program of respiratoy training was developed and tested. The study was carried out at the Laboratório de Fisioterapia em Reatividade Comportamental at the Centro de Docência e Pesquisa em Fisioterapia da Faculdade de Medicina da Universidade de São Paulo with 20 people (women) aged in average 71 years, active in their communities, and free from significant cardiovascular, pulmonary, neurological or muscle disfunction, or from chronic diseases that might affect the ability to practice exercises. After a series of resiratory function performance pre-tests, participants have undergone respiratory training for four months, in twice-weekly sessions of one hour. At the end of program all participants had their respiratory function evaluated (post-test). Six mouth and one year later, all the 20 subjects were again evaluated (post-tests). Training program was found to have brought respiratory function performance improvement: thoracic mobility, flexibility and maximal respiratory pressures. Body composition was unchanged as expected.

Background: Ventilator-associated pneumonia is a major cause of morbidity and mortality for patients in an intensive care unit. Once present, ventilator-associated pneumonia is known to increase the duration of mechanical ventilation, time in the intensive care unit, and length of hospital stay. Patients with acquired brain injury are commonly admitted to the intensive care unit and considered to be at a high risk for the development of respiratory complications such as ventilator-associated pneumonia, which could potentially impact on the intensive care unit costs and outcomes. Respiratory physiotherapy is often provided to prevent and/or treat ventilator-associated pneumonia in patients with acquired brain injury. The theoretical rationale of the respiratory physiotherapy is to improve airway clearance and enhance ventilation which may reduce the incidence of pulmonary infections and thus ventilator-associated pneumonia, and may in turn decrease the duration of mechanical ventilation, prevent the need for tracheostomy and hence result in reduced costs and shorter hospital stay. Although respiratory physiotherapy may be beneficial in reversing or preventing ventilator-associated pneumonia, to date there are no data concerning the effectiveness of respiratory physiotherapy in patients with acquired brain injury. Hence from an evidence-based perspective, at present there is no justification for the role of respiratory physiotherapy in the management of patients with acquired brain injury in the intensive care unit. Aim: This two-part, prospective randomised controlled trial aimed to investigate the effect of regular prophylactic respiratory physiotherapy on the incidence of ventilator-associated pneumonia, duration of mechanical ventilation, and length of intensive care unit stay in adults with acquired brain injury, as compared to a control group (Part A). / The second part of the study (Part B) randomised those subjects from Part A who developed a ventilatorassociated pneumonia into a treatment or control group to establish if the provision of a regimen of regular respiratory physiotherapy influenced the outcome of ventilator-associated pneumonia. Additionally, this study also aimed to provide the first description of the financial costs of respiratory physiotherapy time in providing interventions to patients with acquired brain injury in the intensive care unit and investigated the cost effectiveness of respiratory physiotherapy interventions in decreasing the incidence of ventilator-associated pneumonia, duration of mechanical ventilation and length of intensive care unit stay. Subjects: 144 adult patients with acquired brain injury admitted with a Glasgow Coma Scale of nine or less, requiring intracranial pressure monitoring, and invasive ventilatory support for greater than 24 hours, were randomised to a treatment group or a control group. Methods: For subjects randomised to the treatment groups, the regimen of respiratory physiotherapy treatment was repeated six times per 24-hour period and continued until the subject was weaned from mechanical ventilatory support. Each respiratory physiotherapy intervention of 30 minute duration comprised a regimen of positioning, manual hyperinflation and suctioning. In both Parts A and B, the control group received standard nursing and medical care but no respiratory physiotherapy interventions. Results: Consent was obtained for 144 subjects, with 72 randomised for treatment in Part A. Part A groups were comparable with respect to demographic variables, with the exception of body mass index and gender distribution. / Using intention to treat philosophy, there were no significant differences for incidence of ventilator-associated pneumonia [Treatment Group 14/72 (19.4%) vs. Control 19/72 (26.4%); p = 0.32], duration of mechanical ventilation (hr) [172.8 vs. 206.3); p = 0.18], or length of intensive care unit stay (hr) [224.2 vs. 256.4; p = 0.22]. For subjects with acquired brain injury receiving this prophylactic regimen of respiratory physiotherapy in the intensive care unit, in an attempt to prevent ventilator-associated pneumonia, the cost of physiotherapy was $487 per subject. Comparatively the intensive care unit mechanical ventilation bed day cost was $33,380 per subject. The cost of Part A respiratory physiotherapy time for Treatment Group 1 was 1.7 per cent of the cost of subject's intensive care unit mechanical ventilation bed days. Thirty-three subjects (22.9%) from Part A developed ventilator-associated pneumonia, and were transferred to Part B and re-randomised, 17 to the Treatment Group 3. Part B groups were comparable with respect to demographic variables. No significant differences were detected in the dependent variables for Part B of the study, with similar duration of mechanical ventilation (hr) [342.0 vs. 351.0); p = 0. 89], and length of ICU stay (hr) [384.7 vs. 397.9; p = 0.84] noted. In those subjects with acquired brain injury in whom ventilator-associated pneumonia developed, the regimen of respiratory physiotherapy for the remaining duration of mechanical ventilation following diagnosis of ventilator-associated pneumonia costed an average of $788. Comparatively the intensive care unit bed day cost for the period of mechanical ventilation was $43,865. The cost of Part B respiratory physiotherapy time for Treatment Group 3 was 1.8 per cent of the cost of their intensive care unit mechanical ventilation bed days. / Subjects with a ventilator-associated pneumonia were significantly younger, were admitted with a lower Glasgow coma scale, and more likely to have been admitted with a chest injury than subjects without a ventilator-associated pneumonia. Duration of mechanical ventilation and length of intensive care unit stay were significantly increased in subjects with ventilatorassociated pneumonia, but length of hospital stay was not significantly different. Significant differences in the costs of respiratory physiotherapy and intensive care unit mechanical ventilation bed day costs were evident between those subjects with ventilator-associated pneumonia as compared to those without ventilator-associated pneumonia. For subjects with ventilator-associated pneumonia, the respiratory physiotherapy time cost was $1,029 per subject, compared to $510 for subjects without ventilator-associated pneumonia. The intensive care unit mechanical ventilation bed day cost for subjects with ventilator-associated pneumonia was $61,092 per subject, and $25,142 for those without a ventilator-associated pneumonia, giving an incremental health cost of $35,950 per episode of ventilatorassociated pneumonia. No significant differences were evident in the cost of respiratory physiotherapy as a per cent of the cost of their intensive care unit mechanical ventilation bed days, with findings of 1.4 per cent in those with ventilator-associated pneumonia and 1.1 per cent in those without ventilator-associated pneumonia. / Conclusion: Use of a regular prophylactic respiratory physiotherapy regimen comprising of positioning, manual hyperinflation and suctioning, in addition to routine medical and nursing care, did not appear to prevent ventilator-associated pneumonia, reduce length of ventilation or intensive care unit stay in adults with acquired brain injury. Furthermore, in those acquired brain injury subjects with ventilator-associated pneumonia, regular respiratory physiotherapy did not appear to expedite recovery in terms of reducing length of ventilation or intensive care unit stay. It can be concluded from the findings of this study that the presence of ventilator-associated pneumonia has a significant influence on morbidity and costs in subjects with acquired brain injury. Whilst statistically significant results were not found with clinical variables, it is suggested that the provision of a prophylactic respiratory physiotherapy regimen costing $487 per subject is a worthwhile investment in attempts to avoid the incremental health cost of $35,950 per episode of ventilator-associated pneumonia. In subjects with ventilator-associated pneumonia it is concluded that the cost of respiratory physiotherapy would not appear to be justified in attempts to reduce the duration of mechanical ventilation.

Orientador: José Geraldo Trani Brandão / Banca: Celso Pinto Morais Pereira / Banca: Mauro Gonçalves / Resumo: A vibração torácica é uma técnica de fisioterapia respiratória utilizada para higienização brônquica, que facilita a remoção da secreção, evitando sua retenção e danos na função pulmonar, como na troca gasosa. Existe um grande número de pacientes com problemas respiratórios que se beneficiam desta técnica. O propósito deste trabalho é justamente analisar e mensurar a freqüência de oscilação da técnica de vibração torácica, realizada por diversos fisioterapeutas, que atuam em fisioterapia respiratória ou em outra área da fisioterapia, para que, por meio desses estudos possam verificar qual a freqüência da técnica de vibração torácica predominante, e se a freqüência obtida está próxima da freqüência da literatura técnica, uma vez que existem poucos trabalhos científicos em questão. A freqüência de vibração é medida em hertz (Hz). / Abstract: The chest vibration is a technique of respiratory physiotherapy used in order to promote a bronquial cleaning, to facilitate the sputum removal of the secretion, preventing its retention and damages in the pulmonary function as in the gaseous exchange. A great number of patients with respiratory problems exists that are benefit of this technique. The intention of this work is exactly to analyze and to measure the frequency of oscillation of the technique of chest vibration, carried through by diverse physiotherapists, who act with in respiratory physiotherapy and that they act in another area of the physiotherapy, so that through these studies can verify which the frequency of the technique of predominant chest vibration between them, and if the gotten frequency is next to the frequency of literature, technique exists few scientific works in question. The vibration frequency is measured in hertz (Hz). / Mestre

Title: Physiotherapy as part of multidisciplinary care for patients following a lung transplant operation Objective: To evaluate the mobility of patients in the first days after lung transplantation. To compare the quality of life according to Karnofsky index and Jones dyspnea index. To relate spirometric values FVC and FEV1 of patients in the period prior to lung transplantation with the values in the first year after lung transplantation. Check the link between the development of quality of life and development of spirometric values. Methods: It is a pilot study, which was attended by 18 probands (13 men and 5 women), aged between 14 and 68 years. The data were collected on regular intervals using questionnaires on quality of life (Karnofsky index and Jones dyspnea index) and spirometric examinations taking place at the Motol University Hospital. The data were statistically analyzed using MS EXCEL, mostly using correlations and pair T - test. Results: Results showed substantial changes in the level of significance of p <0,01 both in the development of the quality of life, and in the development of spirometric values compared during the first year after lung transplantation with values before the transpantion. Another important result was the negative effect of a prolonged stay at intensive care...

Title: Effect of physiotherapy in respiratory diseases during healing stays Objective: The main objective of this work is to analyze the importance of physiotherapy as one of the treatments used in the care of pediatric patients with bronchial asthma. Method: In the theoretic part of the dissertation anatomy and physiology of the respiratory tract, respiratory biomechanics, problems of asthma bronchiale, possibilities of asthma treatment, prevention and improvement of quality of life in children with respiratory difficulties under physiotherapy are discussed. The practical part is made as a pilot experimental study of influence of various physiotherapy unit length on patiens respiratory parameters. For monitoring of changes in respiratory displays standardized spirometry measurement was provided supplemented by electronic stethoscope examination. Results: The positive effect of respiratory and movement physiotherapy in children with asthma bronchiale was demonstrated. Further the optimal length of one therapeutic unit in the interval between 10 and 30 minutes was defined. Key words: Asthma bronchiale, spirometry, respiratory physiotherapy, school age

A fisioterapia respiratória veio com o objetivo de atuar diretamente no sistema ventilatório, podendo alterar a mecânica pulmonar através da complacência dinâmica e da resistência do sistema respiratório. O clearence de secreções, ou higiene das vias aéreas é um processo fisiológico normal, necessário para prevenção de complicações das vias aéreas e de infecções do trato respiratório. Pacientes intubados não conseguem eliminar secreções adequadamente, favorecendo o acúmulo destas. Entre as diversas técnicas de fisioterapia respiratória surgiu há pouco tempo a proposta da utilização do próprio ventilador mecânico, como recurso para higiene brônquica através de alterações de fluxos e pressões. A técnica denominada Positive End Expiratory Pressure (PEEP) – Zero End Expiratory Pressure (ZEEP) – (Pressão Expiratória Final Positiva; Pressão Expiratória Final Zero) proporciona a insuflação dos pulmões por meio do aumento da PEEP, seguido de uma rápida descompressão pulmonar pela redução abrupta da PEEP até zero cmH2O. Desta forma, o objetivo deste estudo foi verificar o efeito da manobra PEEP-ZEEP na remoção de secreções traqueobrônquicas, na mecânica pulmonar e nos parâmetros hemodinâmicos em pacientes submetidos a ventilação mecânica invasiva. Foi realizado um estudo randomizado cruzado com amostra não sequencial por conveniencia, com 37 pacientes internado na Unidade de Terapia Intensiva do Hospital de Clinicas de Porto Alegre, entre Abril de 2014 e Outubro de 2015, que estavam em Ventilação Mecânica Invasiva a mais de 48H. As técnicas eram aplicadas com 24H de intervalo, sendo randomizada a primeira técnica de utilização. O protocolo PA tratava-se de aspiração isolada e o PP-Z da manobra PEEP-ZEEP associada a aspiração isolada. As secreções foram coletadas após ambos os protocolos e os parâmetros hemodinâmicos pré e pós protocolo. Os resultados indicam que a manobra PEEPZEEP é uma proposta terapêutica que pode ser implementada na prática assistencial. É no mínimo tão benéfica quanto às demais técnicas conhecidas, pois promove um aumento de retirada de volume de secreção em comparado com a técnica de aspiração isolada, auxiliando na higiene brônquica. Ao mesmo tempo, ao usar o próprio ventilador como meio, proporciona uma padronização da técnica, que gera uma simplificação de recursos envolvidos e redução no tempo de aplicação, podendo assim, aperfeiçoar o atendimento da fisioterapia. / The Respiratory Therapy came in order to act directly on the respiratory system and may amend lung mechanics through the dynamic compliance and respiratory system resistance. The clearance of secretions or airway clearance is a normal physiological process, required for prevention of complications airway and respiratory tract infections. Intubated patients can not clear secretions properly, favoring the accumulation of these. Among the various techniques of respiratory physiotherapy recently it was proposed of using mechanical ventilator itself as a resource for bronchial hygiene through flows and pressures changes. The technique called Positive End Expiratory Pressure (PEEP) - Zero End Expiratory Pressure (ZEEP) provides the inflation of the lungs by increasing the PEEP, followed by a rapid lung decompression by reducing abrupt PEEP to zero cmH2O. Thus, the aim of this study was to investigate the effect of PEEP-ZEEP maneuver in removing tracheobronchial secretions in the lung mechanics and hemodynamic parameters in patients undergoing invasive mechanical ventilation. A crossover randomized study was conducted with non sequential sample for convenience with 37 patients admitted to the Intensive Care Unit of the Hospital de Clinicas de Porto Alegre, between April 2014 and October 2015, which were Ventilation Invasive Mechanical over 48H. The techniques were applied with an interval of 24H, which randomized the first technique to use. The PA protocol it was an isolated aspiration and PP-Z PEEP-ZEEP maneuver associated with isolated aspiration. Secretions were collected after both protocols and hemodynamic parameters pre and post protocol. The results indicate that the PEEP-ZEEP maneuver is a therapeutic approach that can be implemented in healthcare practice. It is at least as beneficial as the other known techniques, as it promotes an increase in secretion volume withdrawn in comparison with isolated aspiration technique, assisting in the bronchial hygiene. At the same time, to use their own fan as a means, provides a technical standardization, which creates a simplification of resources involved and reduced application time and can thus improve the care of physical therapy.

A fisioterapia respiratória veio com o objetivo de atuar diretamente no sistema ventilatório, podendo alterar a mecânica pulmonar através da complacência dinâmica e da resistência do sistema respiratório. O clearence de secreções, ou higiene das vias aéreas é um processo fisiológico normal, necessário para prevenção de complicações das vias aéreas e de infecções do trato respiratório. Pacientes intubados não conseguem eliminar secreções adequadamente, favorecendo o acúmulo destas. Entre as diversas técnicas de fisioterapia respiratória surgiu há pouco tempo a proposta da utilização do próprio ventilador mecânico, como recurso para higiene brônquica através de alterações de fluxos e pressões. A técnica denominada Positive End Expiratory Pressure (PEEP) – Zero End Expiratory Pressure (ZEEP) – (Pressão Expiratória Final Positiva; Pressão Expiratória Final Zero) proporciona a insuflação dos pulmões por meio do aumento da PEEP, seguido de uma rápida descompressão pulmonar pela redução abrupta da PEEP até zero cmH2O. Desta forma, o objetivo deste estudo foi verificar o efeito da manobra PEEP-ZEEP na remoção de secreções traqueobrônquicas, na mecânica pulmonar e nos parâmetros hemodinâmicos em pacientes submetidos a ventilação mecânica invasiva. Foi realizado um estudo randomizado cruzado com amostra não sequencial por conveniencia, com 37 pacientes internado na Unidade de Terapia Intensiva do Hospital de Clinicas de Porto Alegre, entre Abril de 2014 e Outubro de 2015, que estavam em Ventilação Mecânica Invasiva a mais de 48H. As técnicas eram aplicadas com 24H de intervalo, sendo randomizada a primeira técnica de utilização. O protocolo PA tratava-se de aspiração isolada e o PP-Z da manobra PEEP-ZEEP associada a aspiração isolada. As secreções foram coletadas após ambos os protocolos e os parâmetros hemodinâmicos pré e pós protocolo. Os resultados indicam que a manobra PEEPZEEP é uma proposta terapêutica que pode ser implementada na prática assistencial. É no mínimo tão benéfica quanto às demais técnicas conhecidas, pois promove um aumento de retirada de volume de secreção em comparado com a técnica de aspiração isolada, auxiliando na higiene brônquica. Ao mesmo tempo, ao usar o próprio ventilador como meio, proporciona uma padronização da técnica, que gera uma simplificação de recursos envolvidos e redução no tempo de aplicação, podendo assim, aperfeiçoar o atendimento da fisioterapia. / The Respiratory Therapy came in order to act directly on the respiratory system and may amend lung mechanics through the dynamic compliance and respiratory system resistance. The clearance of secretions or airway clearance is a normal physiological process, required for prevention of complications airway and respiratory tract infections. Intubated patients can not clear secretions properly, favoring the accumulation of these. Among the various techniques of respiratory physiotherapy recently it was proposed of using mechanical ventilator itself as a resource for bronchial hygiene through flows and pressures changes. The technique called Positive End Expiratory Pressure (PEEP) - Zero End Expiratory Pressure (ZEEP) provides the inflation of the lungs by increasing the PEEP, followed by a rapid lung decompression by reducing abrupt PEEP to zero cmH2O. Thus, the aim of this study was to investigate the effect of PEEP-ZEEP maneuver in removing tracheobronchial secretions in the lung mechanics and hemodynamic parameters in patients undergoing invasive mechanical ventilation. A crossover randomized study was conducted with non sequential sample for convenience with 37 patients admitted to the Intensive Care Unit of the Hospital de Clinicas de Porto Alegre, between April 2014 and October 2015, which were Ventilation Invasive Mechanical over 48H. The techniques were applied with an interval of 24H, which randomized the first technique to use. The PA protocol it was an isolated aspiration and PP-Z PEEP-ZEEP maneuver associated with isolated aspiration. Secretions were collected after both protocols and hemodynamic parameters pre and post protocol. The results indicate that the PEEP-ZEEP maneuver is a therapeutic approach that can be implemented in healthcare practice. It is at least as beneficial as the other known techniques, as it promotes an increase in secretion volume withdrawn in comparison with isolated aspiration technique, assisting in the bronchial hygiene. At the same time, to use their own fan as a means, provides a technical standardization, which creates a simplification of resources involved and reduced application time and can thus improve the care of physical therapy.

A fisioterapia respiratória veio com o objetivo de atuar diretamente no sistema ventilatório, podendo alterar a mecânica pulmonar através da complacência dinâmica e da resistência do sistema respiratório. O clearence de secreções, ou higiene das vias aéreas é um processo fisiológico normal, necessário para prevenção de complicações das vias aéreas e de infecções do trato respiratório. Pacientes intubados não conseguem eliminar secreções adequadamente, favorecendo o acúmulo destas. Entre as diversas técnicas de fisioterapia respiratória surgiu há pouco tempo a proposta da utilização do próprio ventilador mecânico, como recurso para higiene brônquica através de alterações de fluxos e pressões. A técnica denominada Positive End Expiratory Pressure (PEEP) – Zero End Expiratory Pressure (ZEEP) – (Pressão Expiratória Final Positiva; Pressão Expiratória Final Zero) proporciona a insuflação dos pulmões por meio do aumento da PEEP, seguido de uma rápida descompressão pulmonar pela redução abrupta da PEEP até zero cmH2O. Desta forma, o objetivo deste estudo foi verificar o efeito da manobra PEEP-ZEEP na remoção de secreções traqueobrônquicas, na mecânica pulmonar e nos parâmetros hemodinâmicos em pacientes submetidos a ventilação mecânica invasiva. Foi realizado um estudo randomizado cruzado com amostra não sequencial por conveniencia, com 37 pacientes internado na Unidade de Terapia Intensiva do Hospital de Clinicas de Porto Alegre, entre Abril de 2014 e Outubro de 2015, que estavam em Ventilação Mecânica Invasiva a mais de 48H. As técnicas eram aplicadas com 24H de intervalo, sendo randomizada a primeira técnica de utilização. O protocolo PA tratava-se de aspiração isolada e o PP-Z da manobra PEEP-ZEEP associada a aspiração isolada. As secreções foram coletadas após ambos os protocolos e os parâmetros hemodinâmicos pré e pós protocolo. Os resultados indicam que a manobra PEEPZEEP é uma proposta terapêutica que pode ser implementada na prática assistencial. É no mínimo tão benéfica quanto às demais técnicas conhecidas, pois promove um aumento de retirada de volume de secreção em comparado com a técnica de aspiração isolada, auxiliando na higiene brônquica. Ao mesmo tempo, ao usar o próprio ventilador como meio, proporciona uma padronização da técnica, que gera uma simplificação de recursos envolvidos e redução no tempo de aplicação, podendo assim, aperfeiçoar o atendimento da fisioterapia. / The Respiratory Therapy came in order to act directly on the respiratory system and may amend lung mechanics through the dynamic compliance and respiratory system resistance. The clearance of secretions or airway clearance is a normal physiological process, required for prevention of complications airway and respiratory tract infections. Intubated patients can not clear secretions properly, favoring the accumulation of these. Among the various techniques of respiratory physiotherapy recently it was proposed of using mechanical ventilator itself as a resource for bronchial hygiene through flows and pressures changes. The technique called Positive End Expiratory Pressure (PEEP) - Zero End Expiratory Pressure (ZEEP) provides the inflation of the lungs by increasing the PEEP, followed by a rapid lung decompression by reducing abrupt PEEP to zero cmH2O. Thus, the aim of this study was to investigate the effect of PEEP-ZEEP maneuver in removing tracheobronchial secretions in the lung mechanics and hemodynamic parameters in patients undergoing invasive mechanical ventilation. A crossover randomized study was conducted with non sequential sample for convenience with 37 patients admitted to the Intensive Care Unit of the Hospital de Clinicas de Porto Alegre, between April 2014 and October 2015, which were Ventilation Invasive Mechanical over 48H. The techniques were applied with an interval of 24H, which randomized the first technique to use. The PA protocol it was an isolated aspiration and PP-Z PEEP-ZEEP maneuver associated with isolated aspiration. Secretions were collected after both protocols and hemodynamic parameters pre and post protocol. The results indicate that the PEEP-ZEEP maneuver is a therapeutic approach that can be implemented in healthcare practice. It is at least as beneficial as the other known techniques, as it promotes an increase in secretion volume withdrawn in comparison with isolated aspiration technique, assisting in the bronchial hygiene. At the same time, to use their own fan as a means, provides a technical standardization, which creates a simplification of resources involved and reduced application time and can thus improve the care of physical therapy.