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EKG (Elektrokardiogramm)

Ich habe das EKG nie richtig verstanden – bis ich bemerkte, woran es lag:
Etwas in mir weigerte sich strikt, das Herz als einen elektrischen Apparat verstehen zu wollen.

Rhythmusstörungen

Folgende Rhythmusstörungen sollten am Monitor prima vista unterschieden werden können:

  • Asystolie
  • Bradykardie
  • Sinustachykardie
  • Tachyarrythmie
  • Supraventrikuläre Tachykardie
  • Ventrikulärer Tachikardie
  • Kammerflimmern/Kammerflattern

Beurteilungskriterien

  • Ist die Herzaktion eine Vorhof- oder eine Kammeraktion?
    Kammeraktionen sind immer verbreitert, Vorhofaktionen sind schlank und spitz!
  • Bei supraventrikulärer (vom Vorhof ausgehende)Aktion:
    Handelt es sich um eine Sinusaktion (P-Welle vorhanden)?
  • Ist die Rhythmusanomalie Kreislaufwirksam (beeinflusst sie den Blutdruck, sind periphere Pulswellen vorhanden)?

Sinus-Tachykardie

Die Herzaktion (der Kammerkomplex) wird im Sinusknoten ausgelöst, darum ist eine P-Welle vorhanden. Die Frequenz ist zu hoch (>100/Minute).
http://flexikon.doccheck.com/de/Sinustachykardie

ekg-sinustachykardie

Sinustachykardie


 

Supraventrikuläre Tachykardie

Die Herzaktion (der Kammerkomplex) wird zwar im Vorhof, nicht aber im Sinusknoten ausgelöst, darum ist keine P-Welle vorhanden.
http://flexikon.doccheck.com/de/Supraventrikul%C3%A4re_Tachykardie

ekg-SVT

Supraventrikuläre Tachykardie

Ventrikuläre Tachykardie (VT)

Die Herzaktion (der Kammerkomplex) wird nicht im Vorhof, sondern in der Herzkammer ausgelöst darum ist keine P-Welle vorhanden.
Wenn alle Erregungen von einem Zentrum ausgehen, spricht man von einer monomorphen ventrikulären Tachykardie, dieKomplexe sehen im EKG dann sehr ähnlich aus.
ekg-VT

Ventrikuläre Tachykardie (VT), monomorph


 

Links

Für vertiefende Studien empfehle ich die Seite:
Grundkurs-EKG  (sehr empfehlenswert)
http://www.grundkurs-ekg.de
http://www.astrodoc.net/EKG/ekg.htm
12-KanalEKG
http://www.anandic.com/bausteine.net/f/9607/EKGElektrodenPositionierung.pdf?fd=2
http://www.grundkurs-ekg.de/ekg_praktisch/ekg_praktisch.htm
Arrhythmie
http://flexikon.doccheck.com/de/Arrhythmie

EKG-Simulation/-Demonstration

EKG-Demos bei YouTube

https://www.youtube.com/user/HeInstruments
http://www.youtube.com/user/HeartStartSkills
http://www.youtube.com/user/cardionetworks
http://www.youtube.com/user/CascadeHealthcare

Online-EKG-Simulator

http://www.ecgsimulator.net/demo.aspx

PC-EKG-Simulator (Download)

simECG
Einfacher EGK-Simulator, derzeit leider nur wenige Rhythmen hinterlegt
http://simecg.sourceforge.net
http://sourceforge.net/projects/simecg
ECGSIM
Sehr komplexer Herz-Lungensimulator (für den, den‘ s wirklich interessiert)
http://www.ecgsim.org
 


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