Hiperinsuflação pulmonar com ventilador mecânico como manobra de higiene brônquica / Hyperinflation with mechanical ventilation as a bronchial hygiene maneuver

Introdução: Um dos objetivos da ventilação mecânica (VM) é a aplicação de terapêuticas específicas na higiene brônquica, como a hiperinsuflação mecânica com o ventilador, que visa promover a expansão das unidades atelectasiadas através dos canais colaterais, favorecendo o deslocamento da secreção pulmonar das vias aéreas periféricas para as centrais. Objetivos: Comparar a segurança e eficácia da técnica de hiperinsuflação com ventilador mecânico em relação à quantidade de secreção pulmonar aspirada com a técnica de aspiração isolada. Para isso, será realizada uma avaliação dos parâmetros ventilatórios e hemodinâmicos e da quantidade de secreção pulmonar aspirada antes e após as manobras e uma comparação entre os resultados obtidos por elas. Métodos: Ensaio clínico randomizado cruzado desenvolvido no centro de terapia intensiva (CTI) do Hospital de Clínicas de Porto Alegre. A amostra constituiu-se de 23 pacientes em VM. Resultados: Não foram encontradas diferenças significativas entre as manobras quanto à quantidade de secreção aspirada e aos valores hemodinâmicos e ventilatórios. A pressão arterial média (PAM) teve um aumento significativo após a manobra de aspiração, mas sem relevância clínica (AU)

Introduction: One of the objectives of mechanical ventilation (MV) is the application of specific therapies in bronchial hygiene, such as mechanical ventilator hyperinflation, which aims to promote the expansion of atelectatic units through the collateral channels, favoring the displacement of the pulmonary secretion from the peripheral airways to the central ones. Objectives: To compare the safety and efficacy of the mechanical ventilator hyperinflation technique in the amount of secretion aspirated with the technique of isolated aspiration. This was done by. evaluating the ventilatory and hemodynamic parameters and the amount of pulmonary secretion aspirated before and after the maneuvers and by comparing the results found in both of them. Methods: A randomized crossover clinical trial developed at the intensive care unit (ICU) of the Hospital de Clínicas de Porto Alegre. The sample consisted of 23 patients on MV. Results: There were no significant differences between the maneuvers regarding the amount of aspirated secretion and hemodynamic and ventilatory values. Mean arterial pressure (MAP) had a significant increase after the aspiration maneuver, but without clinical relevance. Conclusion: Hyperinflation with the mechanical ventilator is a safe technique and as effective as isolated aspiration as a bronchial hygiene technique (AU)

Comparación de la efectividad de cuatro protocolos de kinesiterapia respiratoria en niños hospitalizados por infección respiratoria aguda / Comparison of the effectiveness of four protocols of chest physical therapy in hospitalized children with acute respiratory infection

Objetivo: Comparar los efectos de las técnicas Kinésicas Respiratorias agrupadas en cuatro protocolos de tratamiento (K1, K2, K3 Y PVA) en lactantes y preescolares hospitalizados con afecciones respiratorias, usando un diseño cuasiexperimental, longitudinal prospectivo. Método: Se evaluó a 80 niños, edad promedio de 14.3 meses (SD 12.3) con diagnóstico de Síndrome Bronquial Obstructivo (SBO) y Bronconeumonía (BNM) entre el primer y tercer día de hospitalización. El efecto de la Kinesiterapia Respiratoria (KTR) fue medido en cada paciente a través del Índice Kinésico de Carga de Trabajo Ventilatorio (IKCTV), ejecutado por un único evaluador (KA) al inicio y al final de un turno de 12 horas. Cada protocolo fue definido tanto en la metodología de las técnicas como en el número de atenciones. Cada uno de los protocolos fue seleccionado al azar y aplicado por otro kinesiólogo (KB). Resultados: No se encontraron diferencias estadísticamente significativas al comparar las variables biomédicas de los pacientes evaluados. Los resultados muestran un descenso, una mantención y un incremento en el puntaje final del IKCTV en el 57.5%, 27.5% y un 15% de los pacientes, respectivamente. Tampoco existieron diferencias estadísticamente significativas al comparar la efectividad de los protocolos de tratamiento entre sí. Conclusión: No existió asociación directa entre cantidad de atenciones de KTR, el Protocolo de tratamiento y la disminución en el 1 KCTV.

Objective: Compare the effects of the different techniques dealing with chest physical therapy (CPT) grouped in four treatment protocols (K1, K2, K3, PVA) in infants and preschool children that were hospitalized with respiratory infection, using a prospective longitudinal experimental design. Method: 80 children were assessed, with an average age of 13.8 months (SD 11.8) with a diagnosis of obstructive bronchial syndrome and pneumonia between the first and third day of hospitalization. The effects of CPT measured through the Physical Therapy Index of Ventilatory Work Load (PTIVWL), performed by a single therapist (KA) before and after the therapy in a 12-hour shift. The treatment was grouped in form of protocols; they differed in the methodology of the techniques and number of applications of the therapy. The protocol, chosen randomly, was applied by a different therapist (KB) who didn't know the previous evaluations. Results: There was no statistically significant difference in the biomedical variables of the assessed patients. The results show a decrease of the PTIVWL final score in the 57.5% of patients, maintenance in the 27.5% and increase in the 15% in the PTIVWL. Similarly, there was no statistically significant difference between the four protocols of treatment. Conclusion: There was no relationship between the number of CPT.