Critical Care and Shock

Correlation between internal jugular vein collapsibility index and mean arterial pressure in assessing the response of fluid resuscitation in critically ill patients

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Abstract

Background: Response to resuscitative fluid administration is often difficult to assess clinically, especially in critically ill patients, and therefore it is necessary to use tools to evaluate the response. One of the modalities that can be used is ultrasonography to measure the internal jugular vein collapsibility index (IJVCI) during the respiration cycle.

Aim: To evaluate the correlation between IJVCI and mean arterial pressure (MAP) in assessing response to resuscitative fluid administration in critically ill patients.

Patients and methods: This is an experimental study with pre-post test groups, assessing the response to resuscitative fluid administration in critically ill patients.

Results: A total of 28 subjects aged 18-65 years old were included in the inclusion criteria of this study. The average age of subjects was 50.18 years. Twenty-one subjects responded to the administration of 500 ml Ringer’s lactate (RL) crystalloid fluid within 30 minutes based on the IJVCI. Subjects were observed in two periods, the pre-test and post-test periods. There was a significant difference in the IJVCI before and after 500 ml of RL between the two groups (p<0.05). As a predictor of IJVCI associated with increased MAP at the cut-off value of 44.40 with a sensitivity of 76.9% and a specificity of 80%. This study showed that IJVCI had a negative correlation with increased MAP (p<0.05).

Conclusions: The measurement of the IJVCI can be used to assess the response to resuscitative fluid administration in critically ill patients.