{TAIL ~ The present invention} relates to use of potassium ions for the production of a medicament for the prevention of stone heart development during acute cardiac ventricular fibrillation in connection with cardiopulmonary resuscitation , to a cardioplegic solution comprising potassium and to a method for the prevention of {HEAD ~ stone heart development} during acute cardiac ventricular fibrillation 
{ TAIL ~ The present invention } relates to use of potassium ions for the production of a medicament for the prevention of stone heart development during acute cardiac ventricular fibrillation in connection with cardiopulmonary resuscitation , to a cardioplegic solution comprising potassium and to a method for the prevention of { HEAD ~ stone heart development } during acute cardiac ventricular fibrillation
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