RESUMO
OBJETIVOS: Comparar e analisar a correlação entre o índice de respiração rápida e superficial (IRRS) determinado com os valores fornecidos pelo software do ventilador mecânico Raphael® e pelo ventilômetro digital. MÉTODOS: Participaram do estudo 22 indivíduos adultos (17 homens e 5 mulheres), intubados, no pós-operatório de cirurgia cardíaca. Antes da coleta de dados, cada indivíduo foi avaliado, recebeu atendimento fisioterapêutico a fim de promover higiene brônquica e reexpansão pulmonar e foi posicionado em decúbito dorsal elevado em 45º, e depois foram registrados os valores de volume minuto (VM) e frequência respiratória (FR) obtidos pelo ventilador e pelo ventilômetro. O IRRS foi calculado pela relação FR/volume corrente (VC). Aplicou-se o teste t-pareado para comparação das variáveis relacionadas. Utilizou-se o coeficiente de correlação intraclasse (CCI) para mensuração da replicabilidade dos escores. RESULTADOS: Observou-se diferença significativa entre o IRRS obtido pelo ventilador mecânico e o obtido pelo ventilômetro (p-valor=0,011) e concordância moderada para VM (CCI=0,74), alta concordância para FR (CCI=0,80), VC (CCI=0,79) e IRRS (CCI=0,86). Para todas as variáveis, o p-valor foi menor que 0,05. CONCLUSÕES: Houve concordância estatisticamente significativa entre o IRRS calculado pelos valores registrados no ventilador mecânico e pela ventilometria Artigo registrado no Australian New Zealand Clinical Trials Registry (ANZCTR) sob o número ACTRN12610000756022.
OBJECTIVES: To compare and to analyze whether the values of rapid shallow breathing index (RSBI) determined by a ventilator display and a digital ventilometer were correlated. METHODS: Twenty-two adult patients (17 males and 5 females) in the postoperative period of cardiac surgery and in mechanical ventilation were studied. Prior to the data collection, each patient was evaluated, received physical therapy, in order to promote bronchial hygiene and pulmonary reexpansion, and was positioned in elevated dorsal recumbent at 45º. After these procedures, minute ventilation (MV) and respiratory rate (RR) obtained from mechanical ventilator display and digital ventilometer were recorded. The RSBI was calculated by the ratio of RR and tidal volume (VT). Paired t-test was used to compare related variables. The intra-class correlation coefficients (ICCs) were used to measure the reproducibility of the scores. RESULTS: A significant difference was found between the RSBI obtained from the ventilator and by the digital ventilometer (p=0.011). A high agreement for the RSBI (ICC=0.86), for the RR (ICC=0.80) for the VT (ICC=0.79) and a moderate agreement for the MV (ICC=0.74) were observed. The p-value was <0.05 for all variables. CONCLUSIONS: There were a significant agreement between the RSBI obtained from the ventilator display and the digital ventilometer. Article registered on the Australian New Zealand Clinical Trials Registry (ANZCTR) under the number ACTRN12610000756022.
Assuntos
Adulto , Feminino , Humanos , Masculino , Procedimentos Cirúrgicos Cardíacos , Cuidados Pós-Operatórios , Ventilação Pulmonar , Testes de Função Respiratória/métodos , Período Pós-Operatório , Estudos Prospectivos , RespiraçãoRESUMO
OBJECTIVES: To compare and to analyze whether the values of rapid shallow breathing index (RSBI) determined by a ventilator display and a digital ventilometer were correlated. METHODS: Twenty-two adult patients (17 males and 5 females) in the postoperative period of cardiac surgery and in mechanical ventilation were studied. Prior to the data collection, each patient was evaluated, received physical therapy, in order to promote bronchial hygiene and pulmonary reexpansion, and was positioned in elevated dorsal recumbent at 45º. After these procedures, minute ventilation (MV) and respiratory rate (RR) obtained from mechanical ventilator display and digital ventilometer were recorded. The RSBI was calculated by the ratio of RR and tidal volume (VT). Paired t-test was used to compare related variables. The intra-class correlation coefficients (ICCs) were used to measure the reproducibility of the scores. RESULTS: A significant difference was found between the RSBI obtained from the ventilator and by the digital ventilometer (p=0.011). A high agreement for the RSBI (ICC=0.86), for the RR (ICC=0.80) for the VT (ICC=0.79) and a moderate agreement for the MV (ICC=0.74) were observed. The p-value was <0.05 for all variables. CONCLUSIONS: There were a significant agreement between the RSBI obtained from the ventilator display and the digital ventilometer. Article registered on the Australian New Zealand Clinical Trials Registry (ANZCTR) under the number ACTRN12610000756022.