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1.
Enferm Intensiva ; 19(4): 204-12, 2008.
Artigo em Espanhol | MEDLINE | ID: mdl-19080878

RESUMO

Objective during the application of noninvasive ventilation (NIV) in acute respiratory failure is, as occurs in conventional mechanical ventilation, to improve gas exchange. Expiratory pressure is applied to favour recruitment of collapsed alveoli, improving oxygenation. Inspiratory pressure use on airway aids respiratory muscle rest and decrease respiratory work, which has a direct repercussion in decreasing oxygen consumption. The NIV preserves defence mechanisms of the patients airway intact, which noticeably decreases appearance of mechanical ventilation associated pneumonia, with subsequent benefit in health care cost, stay and morbidity-mortality. We have reviewed the literature available regarding respiratory modes used in NIV, patient monitoring, humidification, and inhaled drug administration. However, the benefits of NIV are obtained when success of the technique is reached; this is depending on patients' collaboration, adequate indication, underlying disease, material resources available, and mainly, training and dedication of the personnel applying the respiratory support.


Assuntos
Respiração Artificial/métodos , Aerossóis , Desenho de Equipamento , Humanos , Umidade , Monitorização Fisiológica , Ventiladores Mecânicos
2.
Enferm. intensiva (Ed. impr.) ; 19(4): 204-212, oct.-dic. 2008. ilus, tab
Artigo em Es | IBECS | ID: ibc-70750

RESUMO

El objetivo durante la aplicación de la ventilación noinvasiva (VNI) en los pacientes con insuficienciarespiratoria aguda es, al igual que en la ventilaciónmecánica convencional, mejorar el intercambiogaseoso. Al aplicar una presión espiratoria se favoreceel reclutamiento de los alvéolos colapsadosmejorando la oxigenación. El uso de la presióninspiratoria sobre la vía aérea asiste al músculorespiratorio para ponerlo en reposo y disminuir eltrabajo respiratorio, lo que repercute directamentedisminuyendo el consumo de oxígeno. Estosbeneficios, además, se consiguen preservandointactos los mecanismos de defensa de la vía aérea delpaciente, lo que disminuye sensiblemente laaparición de neumonía asociada a ventilaciónmecánica, con el subsiguiente beneficio en el gastosanitario, los días de ingreso y la morbimortalidad.Revisamos la literatura disponible sobre los modosrespiratorios más utilizados en VNI, las característicasde los respiradores, las diferencias entre los sistemasconvencionales de cuidados intensivos y losrespiradores específicos de VNI, la monitorizacióndel paciente, la humidificación y la administración defármacos por vía inhalada. Sin embargo, losbeneficios de la VNI sólo se obtienen cuando sealcanza el éxito de la técnica, que depende de lacolaboración del paciente, una adecuada indicación,la enfermedad que origine la insuficiencia respiratoriaaguda, los recursos materiales disponibles y,fundamentalmente, la formación, dedicación ydisponibilidad del personal que aplica el soporterespiratorio


Objective during the application of noninvasiveventilation (NIV) in acute respiratory failure is, asoccurs in conventional mechanical ventilation, toimprove gas exchange. Expiratory pressure isapplied to favour recruitment of collapsed alveoli,improving oxygenation. Inspiratory pressure useon airway aids respiratory muscle rest anddecrease respiratory work, which has a directrepercussion in decreasing oxygen consumption. The NIV preserves defence mechanisms of thepatient’s airway intact, which noticeably decreasesappearance of mechanical ventilation associatedpneumonia, with subsequent benefit in health carecost, stay and morbidity-mortality. We havereviewed the literature available regardingrespiratory modes used in NIV, patient monitoring,humidification, and inhaled drug administration.However, the benefits of NIV are obtained whensuccess of the technique is reached; this isdepending on patients’ collaboration, adequateindication, underlying disease, material resourcesavailable, and mainly, training and dedication ofthe personnel applying the respiratory support


Assuntos
Humanos , Respiração Artificial/métodos , Aerossóis/uso terapêutico , Respiração Artificial/enfermagem , Umidade , Monitorização Fisiológica/métodos , Pressão Positiva Contínua nas Vias Aéreas , Ventiladores Mecânicos
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