Interactive worksheet
Interactive worksheet
Clinical inputs
0/1 filled
Clinical contextWhy this tool matters and how to interpret it
Understand the result,
not just the number.
Player age (years) Projectile speed (mph) (enter best estimate; 40 mph is peak hazard in experimental models) Projectile type Standard/official ball or puckReduced-impact safety baseball (T-ball/soft core)Other/unknown NOCSAE-certified chest protection worn? No/UnknownYes (NOCSAE commotio cordis standard) Commotio Cordis Risk Model (Sport-Specific): Explanation and Clinical Context This calculator provides an evidence-informed, sport-specific relative risk index (0–10) for commotio cordis based on established determinants: the sport, projectile velocity, projectile hardness, chest protection standard, and age. The model is derived from experimental and registry data but is not a validated individual-level predictor.
Use for comparative and educational purposes only.
Evidence & references1 primary source mapped
- Source 1
Link MS, et al. Upper and lower limits of vulnerability to sudden arrhythmic death with chest-wall impact (commotio cordis). J Am Coll Cardiol. 2003;41:99-104. Link MS, et al. Reduced risk of sudden death from chest wall blows (commotio cordis) with safety baseballs. Pediatrics. 2002;109:873-877. Madias C, Maron BJ, Dau N, et al. Mechanically induced sudden death in chest wall impact (commotio cordis). J Electrocardiol. 2003;36 Suppl:83-89. Link MS. Commotio Cordis. Circulation: Arrhythmia and Electrophysiology. 2012;5:425-432. Maron BJ, et al. Commotio Cordis. N Engl J Med. 2010;362:917-927. NOCSAE. Chest Protector Performance Standard for Commotio Cordis (baseball & lacrosse).
Clinical discussionModerated, tool-specific conversation
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