What is 'Commotio cordis', the possible cause of death of Jesús de Miguel, forward of Tenerife

Tenerife forward Jesús de Miguel has died at 30 after suffering a cardiac arrest during a match against FC Andorra. He was hospitalized following a collision with the opposing goalkeeper, which led to unconsciousness and a subsequent cardiac arrest. Despite resuscitation efforts, his neurological condition worsened overnight, resulting in his death. Medical experts suggest he may have experienced 'commotio cordis', a sudden cardiac event triggered by a blow to the heart. This condition can occur even from minor impacts during vulnerable moments in the cardiac cycle. Cardiac arrest often leads to neurological complications due to oxygen deprivation, significantly reducing survival chances. Prompt CPR is crucial in such emergencies, and using an automated external defibrillator (AED) can be life-saving.