It’s one of the most sudden and shocking causes of cardiac arrest, a seemingly harmless blow to the chest, followed by collapse. No broken ribs. No massive trauma. Just a perfectly timed impact that sends the heart into chaos. Commotio cordis occurs when a blunt impact to the chest, strikes directly over the heart during a critical 20–30 millisecond window of the cardiac cycle. If that impact happens during ventricular repolarization (the upstroke of the T-wave), it can trigger ventricular fibri

Commotio Cordis: A Life-Threatening Cardiac Event 💥❤️ A rare but potentially fatal condition triggered by a blunt, non-penetrating impact to the chest. This impact disrupts the heart's electrical activity, leading to ventricular fibrillation (VF) and sudden cardiac arrest. Commotio cordis occurs when a blunt chest impact during the T-wave triggers ventricular fibrillation, often in young males during sports. Survival rates exceed 50% with prompt CPR and defibrillation, but non-sport cases have