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Cardioversion is a special procedure that is carried out in the medical field when a subject has an arrhythmia, i.e. an alteration of the normal cardiac rhythm (sinus rhythm), in order to restore it while avoiding dangerous complications that can even lead to the patient’s death.

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spontaneous: when the arrhythmia stops spontaneously, within a few hours of its onset;

non-spontaneous: when the arrhythmia does NOT stop spontaneously, in which case medical personnel must intervene as soon as possible to restore sinus rhythm.

Non-spontaneous cardioversion can be carried out in three ways: pharmacological cardioversion, electrical cardioversion (with an external defibrillator or internal ICD) or, indeed, mechanical cardioversion using a precordial fist.

The mechanical energy imparted by the fist should convert into sufficient electrical energy to restore normal sinus rhythm.

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The operator stands at the side of the patient placed on a possibly hard surface and administers the precordial fist on the sternum at heart level.

Important:

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This manoeuvre should only be performed in the event of cardiac arrest when a defibrillator is not available, i.e. in extreme emergency situations.

In rare cases, it has actually made it possible to convert ventricular fibrillation or ventricular tachycardia into an effective cardiac rhythm, but more frequently it is ineffective or can even cause an opposite conversion, ultimately leading to asystole, which further aggravates the situation, so it is extremely important to use this technique only if there are no other options.

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In order to be performed, this technique should only be carried out if

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