García HNY, Montelongo FJ, Galindo AJ, Lázaro MOEJ, Reyes PMM, Herrera MBE

Language: Spanish
References: 5
Page: 600-603
PDF size: 276.41 Kb.

ABSTRACT

Introduction: in critically ill patients it is of vital importance to perform ultrasound at the bedside and the measurement of the diameter of the inferior vena cava is useful to assess whether a patient is hypovolemic, normovolemic or hypervolemic, in most cases therefore in a high proportion of patients will require the administration of fluid therapy and almost all of those admitted to the intensive care unit due to shock; therefore, taking into account the above, the measurement of the vena cava is of vital importance, however traditionally the vena cava is measured in its longitudinal axis in the subxiphoid window resting on the upper hemiabdomen in which the movement of the transducer outside the midline results in the measurement of a false diameter that is smaller than the true maximum diameter of the inferior vena cava, and therefore measuring the vena cava transversely would improve spatial orientation and would be precise. Material and methods: in the present study, 47 patients were evaluated in the intensive care unit, comparing the maximum diameter of the vena cava longitudinally versus transversally. A Student t test for related samples was performed as a statistical method. Results: a mean correlation of up to 47.6% was found, so there is no significant difference between both techniques, meaning that measuring it transversally is equal to the traditional method; however, more patient samples are needed to be conclusive. Conclusions: we consider that measuring the vena cava transversally may be a new alternative to determine the patient's blood volume status.

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