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Algorithm for exterior defibrillators that correctly both adult and child arrhythmias
Date:3/21/2011

This press release is available in Spanish.

Ventricular Fibrillation (VF) is a series of intense and disordered contractions of the ventricles (they are located in the lower part of the heart). In 40 % of respiratory arrests suffered outside a hospital, it was shown that the first cardiac rhythm corresponds to VF, and the only manner to combat it is with electric discharges provided by defibrillation. This is why the presence of Automated External Defibrillators (AED) in public places is increasingly common. Telecommunications engineer Unai Irusta has carried out an enhancement-optimisation of these machines, having drawn up an innovative algorithm for them. His PhD thesis, presented at the University of the Basque Country (UPV/EHU), is entitled, New signal processing algorithms for automated external defibrillators.

When an AED is activated, the first thing to be done by it is to examine the heart rhythm (electrocardiogram) of the patient, before applying the first discharge. That is, before anything else, the arrhythmias that can be defibrillated or cannot have to be identified, because the discharges are not useful except in the former. This is precisely where Dr Irusta has carried out his greatest contribution. The arrhythmias of adults and children who suffer these kinds of arrests are not the same, and this researcher has worked on fusing the data from each. With this, he has created an innovative algorithm for AEDs that correctly distinguish the rhythms that can be defibrillated and those that cannot, both with adults and with children.

2,782 records in total

In order to design the algorithm, Dr Irusta started by creating a database of arrhythmias. On the one hand, he gathered and classified 1,090 child arrhythmias; according to the thesis, this is a children's database equal to the most important ones undertaken in th
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Contact: Amaia Portugal
a.portugal@elhuyar.com
34-943-363-040
Elhuyar Fundazioa
Source:Eurekalert

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