Medida da pressão venosa central com o paciente em diferentes angulações [Central venous pressure measurement with patient at different angles]
DOI:
https://doi.org/10.12957/reuerj.2016.14502Keywords:
Pressão venosa central, assistência de enfermagem, terapia intensiva, volume sanguíneo [Central venous pressure, nursing care, intensive care, blood volume]Abstract
Objetivo: identificar se existe diferença nos valores da pressão venosa central com a cabeceira do leito do paciente elevada. Método: estudo longitudinal, analítico e de abordagem quantitativa, realizado em quatro unidades de terapia intensiva de um hospital de grande porte do noroeste paulista, de agosto a novembro de 2013. A pressão venosa central foi mensurada em 156 pacientes, em quatro angulações diferentes, totalizando 624 medidas. Os dados são apresentados em números absolutos e percentuais, as variáveis analisadas pelo Teste de Mann-Whitney e Wilcoxon e associação entre as medidas pela análise do coeficiente de correlação de Pearson (r). Conclusão: a mensuração pode ser realizada com acurácia a 0º e 30º, pois apresentaram correlação positiva entre as medidas, porém a 0º e 45º a correlação é fraca, demonstrando pouca associação entre as variáveis.
ABSTRACT
Objective: to investigate whether central venous pressure values differ with patient bed inclination. Method: This quantitative, analytical, longitudinal study was conducted from November to August 2013 at four intensive care units at a large hospital in northwest São Paulo. Central venous pressure was measured in 156 patients at four different bed inclinations each, totaling 624 measurements. The data are expressed in absolute and percentage values, variables were analyzed using the Mann-Whitney and Wilcoxon tests, and associations between measurements were tested by Pearson’s correlation coefficient (r). Conclusion: measurements were found to be accurate at 0º and 30º (a positive correlation between measurements), but a weak correlation at 0º and 45º (revealing little association between the variables).
RESUMEN
Objetivo: identificar si existen diferencias de valores de la presión venosa central dependiendo de la altura de la cabecera de la cama del paciente. Método: el estudio es cuantitativo, analítico y longitudinal, realizado en cuatro unidades de cuidados intensivos de un hospital de gran porte, ubicado en el Noroeste del São Paulo entre agosto y noviembre de 2013. Se midió la presión venosa central en 156 pacientes, desde cuatro ángulos diferentes, totalizando 624 mediciones. Los datos se presentan en números absolutos y en porcentajes; las variables fueron analizadas mediante la Prueba de Mann–Whitney–Wilcoxon y la asociación entre las medidas se hizo a través del análisis del coeficiente de correlación de Pearson (r). Conclusión: la medición pudo realizarse con exactitud a 0º y 30º grados, ya que presentan una correlación positiva entre las medidas. Sin embargo, a 0° y a 45° grados, la correlación fue débil mostrando poca asociación entre las variables.
DOI: http://dx.doi.org/10.12957/reuerj.2016.14502
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