Asystole (from a- "without" and systole "heart contraction") is a medical term . It is understood to mean a standstill in the electrical and mechanical action of the heart , which, if left untreated, leads to death within a few minutes.
Asystole can be recognized by a flat line in the ECG . Other symptoms such as lack of mechanical heart action in the echocardiography and lack of pulse in the person affected also occur with every asystole, but can also have other causes.
An electrical accident can also be triggering.
A total AV block without electrical and mechanical chamber action is rare and usually only temporarily (temporarily) detectable. You can recognize it in the ECG by the fact that the QRS complex is missing and only atrial waves (P waves) are present. The atria are still contracting, but the ventricles are no longer. This type of arrhythmia can therefore also be classified as asystole.
Until further therapy by the emergency doctor and rescue service , resuscitation measures ( chest compressions and ventilation ) must be carried out by the first aider . The use of a pacemaker may also be necessary.
Asystole can not be treated by defibrillation - contrary to what is sometimes disseminated medially by doctor's series - since irregular heart activity must be present for it to function, which in the ideal case can be rectified again. Drug therapy is carried out with adrenaline .
- Federal Medical Association (ed.): Resuscitation - Recommendations for resuscitation . Deutscher Ärzte-Verlag, 2011, ISBN 978-3-7691-0620-6 .
- Entry on asystole in Flexikon , a wiki from DocCheck , accessed on November 25, 2015.
- Thomas Schneider, Benno Wolcke, Roman Böhmer: Pocket Atlas Emergency & Rescue Medicine : Compendium for the emergency doctor . Springer-Verlag, 2013, ISBN 978-3-662-10216-9 ( limited preview in Google book search).
- T. Ziegenfuß: Emergency Medicine. (= Springer textbook). 5th edition. Springer-Verlag, 2011, ISBN 978-3-642-21126-3 .