Abstract
Background: The application of fractal geometry and the theory of dynamic systems have enabled the cardiac dynamics to be objectively and reproducibly characterised from the construction of chaotic attractors. Objective: To develop a new methodology for evaluating the pressure of oxygen pressure based on dynamic systems in arterial blood of patients in intensive care units. Methods: Arterial blood gases were analysed in 10 selected patients, and taking the values of the arterial oxygen pressure recorded in their medical charts during the days in post-surgical intensive care unit, chaotic attractors were constructed using the delay map. The minimum and maximum values of the attractor on the delay map were then determined. Results: The maximum and minimum values of the attractors of pressure of oxygen in arterial blood ranged between 24.30 and 191.30 mmHg. Conclusions: The geometry of the attractor of oxygen pressure in arterial blood demonstrates chaotic behaviour, which can be more easily be analysed from the theory of dynamical systems, making it useful for the assessment of intensive care unit patients.
| Translated title of the contribution | New methodology for evaluating the oxygen pressure in arterial blood developed in the context of dynamic systems theory |
|---|---|
| Original language | Spanish |
| Pages (from-to) | 67-72 |
| Number of pages | 6 |
| Journal | Acta Colombiana de Cuidado Intensivo |
| Volume | 16 |
| Issue number | 2 |
| DOIs | |
| State | Published - 01 Apr 2016 |