Are Aorta Artery Diameter and Inferior Vena Cava Diameter a Reliable Predictor index in Traumatic Patients with Hemorrhagic Shock?

Intravascular volume is the most important factor in determining patients' hemodynamic status. This present study aimed to assay the predictive value of aorta artery diameter and inferior vena cava (IVC) diameter in trauma patients with hemorrhagic shock.

This was a cross-sectional study conducted on 69 trauma patients who referred to Imam Reza Hospital in Tabriz. Inclusion criteria were all trauma patients with hemorrhagic shock. Patients with diseases such as liver disease,cardiovascular,coronary heart disease and concurrent dehydration were excluded. Odds ratios and Adjusted odds ratios for the risk of events were obtained using cumulative logit ordinal regression model with version 15 of Stata software.

There were 58 men (84/1%) and 11 women (15/9%) with an average age of 36.4±12.4 year. Findings showed that for one unit increase in the diameter of the aorta by controlling the effect of other variables, the odds of mortality decreased for 2% compared with hospitalization in ward or intensive care unit (ICU). The reduction was also statistically significant (P=0.037). Furthermore, by modifying the effect of other variables, one unit increase in the diameter of IVC during inhale and exhale, increases the odds of hospitalization in ward or ICU.

This study showed that the diameter of the aorta and also the diameter of IVC during inhale and exhale can be used to predict the outcome of trauma patients with hemorrhagic shock and eventually to take steps for emergent and effective treatment.