• Eur J Emerg Med · Apr 2016

    The feasibility of recognizing the heart rhythm with an automated external defibrillator from an area the size of a mobile phone.

    • Sakari Syväoja, Maaret Castren, Pirjo Mäntylä, Tuomas T Rissanen, Antti Kivelä, Ari Uusaro, and Helena Jäntti.
    • aDepartments of Anaesthesia and Intensive Care bInternal Medicine, North Karelia Central Hospital, Joensuu cHeart Center dDepartment of Intensive Care eCentre for Prehospital Emergency Care, Kuopio University Hospital, Kuopio, Finland fDepartment of Clinical Science and Education, Section of Emergency Medicine, Karolinska Institutet, Södersjukhuset, Stockholm, Sweden.
    • Eur J Emerg Med. 2016 Apr 1; 23 (2): 102-7.

    ObjectiveRecognition of cardiac arrest (CA) during an emergency call leans on questions concerning CA symptoms and is correct in 50-83% of cases. If the heart rhythm could be recorded and analysed over a mobile phone or transmitted during the emergency call to the dispatch centre and analysed there, using software identical to one in an automated external defibrillator (AED), CA recognition could be more prompt. We investigated whether an AED can correctly analyse normal heart rhythms recorded within an area the size of a mobile phone.MethodsBipolar ECG signal was recorded using an AED in 20 healthy volunteers in four different positions during rest and muscle tension with small pads in an area the size of a mobile phone. Recordings obtained with standard pads in standard positions served as the reference. The recorded ECGs were analysed with an AED and by two cardiologists and categorized as shockable or nonshockable.ResultsAll analyses were correct when the recordings were performed vertically at the midsternum level. Horizontally at this level, the AED made correct analyses in 95 and 65% of cases and the cardiologists in 100 and 88% of cases at rest and during muscle tension, respectively. In the lateral positions only the analyses by cardiologists partly reached 100% sensitivity. The analysis time of the AED was 7 s in all positions.ConclusionECGs can be analysed promptly with an AED within an area the size of a mobile phone. The most reliable recording position was vertical at the midsternum level.

      Pubmed     Full text   Copy Citation     Plaintext  

      Add institutional full text...

    Notes

     
    Knowledge, pearl, summary or comment to share?
    300 characters remaining
    help        
    You can also include formatting, links, images and footnotes in your notes
    • Simple formatting can be added to notes, such as *italics*, _underline_ or **bold**.
    • Superscript can be denoted by <sup>text</sup> and subscript <sub>text</sub>.
    • Numbered or bulleted lists can be created using either numbered lines 1. 2. 3., hyphens - or asterisks *.
    • Links can be included with: [my link to pubmed](http://pubmed.com)
    • Images can be included with: ![alt text](https://bestmedicaljournal.com/study_graph.jpg "Image Title Text")
    • For footnotes use [^1](This is a footnote.) inline.
    • Or use an inline reference [^1] to refer to a longer footnote elseweher in the document [^1]: This is a long footnote..

    hide…