By Salma El-Sakka
A Spanish Segunda División match between CD Tenerife and FC Andorra ended in tragedy when Tenerife player Jesús de Miguel died following an on-pitch collision. While no official cause of death has been confirmed, some reports suggest the rare condition commotio cordis may have been responsible.
What is commotio cordis?
Commotio cordis, Latin for "agitation of the heart," is a rare but recognized medical phenomenon that can cause sudden cardiac arrest after a blunt blow to the chest. First described by doctors in the 1850s, the condition was further analyzed in 1932 by German researchers who identified three critical factors: the type of impact, its speed, and the precise location on the chest.
How a blow disrupts heart rhythm
The heart sits behind the ribs and sternum, with its lower tip pointing left. Unlike skeletal muscle, the heart contains specialized cells that generate their own electrical signals, allowing it to beat continuously without conscious effort. Between contractions, the heart relaxes to recover, a process governed by a carefully timed electrical cycle. During a brief phase known as the T-wave — visible on an electrocardiogram — the heart's cells reset their electrical charge. A powerful chest impact at this exact moment can transmit energy through the tissues and disturb the heart's electrical activity, potentially triggering fatal arrhythmia.
