Introduction:

Hemodynamics is the part of biophysics that is responsible for the anatomical and functional study of the heart, the dynamics of blood inside the blood structures as well as the mechanics of the heart.

Objective:

To compare the hemodynamics of our patients with the non-invasive device USCOM, before and after presenting with controlled hemorrhage.

Material and methods:

An observational, prospective, longitudinal and comparative study was performed in patients between the ages of 16 and 65 in a period of 6 months as a cutoff date for this academic award. (March 2016-ongoing).

Results:

We obtained averages of the different hemodynamic variables, both preload, afterload and inotropism, observing early changes to the exanguination of the patients, being mainly the systemic vascular resistances that are modified.

Discussion:

There are early hemodynamic changes to the exanguination of small amounts of blood in the patients, changes determined by the USCOM system, system easy to use, non-invasive and accurate results offered.

Conclusions:

In this study we can observe how the variables related to afterload (systemic vascular resistance) are the first variables that are modified, so that with the loss of small amounts of blood we get to observe this.

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