Commotio cordis: Difference between revisions

 
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==Background==
==Background==
*Primary electrical event resulting in induction of Vfib
*Sudden cardiac arrest resulting from blunt chest trauma in absence of underlying cardiac disease<ref name="Yousef">Yousef R, Carr JA. Blunt cardiac trauma: a review of the current knowledge and management. Ann Thorac Surg. 2014 Sep;98(3):1134-40. doi: 10.1016/j.athoracsur.2014.04.043.</ref>
**Due to blow occurring 10-30ms before peak of T wave
*50% of cases due to competitive sports<ref name="Yousef" />
**Often results from innocent-appearing chest wall blow
**Baseball is most common culprit
***Usually insufficient to cause damage to ribs, sternum, or heart
*Autopsy usually shows normal cardiac anatomy with no evidence of damage to heart or other intrathoracic structures<ref name="Ngai">Ngai KY, Chan HY, Ng F. A patient with commotio cordis successfully resuscitated by bystander cardiopulmonary resuscitation and automated external defibrillator. Hong Kong Med J. 2010 Oct;16(5):403-5.</ref>
***Autopsy results usually show normal cardiac anatomy
 
*Second most common cause of death in young athletes after HOCM
{{Background BCI}}
**Seen in sports where hard projectiles are used, e.g. baseball, hockey and lacrosse
 
===Pathophysiology<ref name="Ngai" />===
*Primary electrical event resulting in induction of [[Ventricular Fibrillation]]
*Likely due to blow occurring 10-30ms before peak of T wave, although this theory is disputed<ref name="Yousef" />
*Strike directly over cardiac silhouette ↑ risk of developing commotio cordis
*Younger patients more at risk - compliant chest wall allows transmission of more energy to the heart.
 
==Clinical Features==
*[[Cardiac arrest]] (usually [[ventricular fibrillation]])
 
==Differential Diagnosis==
{{Thoracic trauma DDX}}
 
==Evaluation==
*Clinical
 
==Management==
*Standard [[Adult Pulseless Arrest|adult]] or [[Pediatric Pulseless Arrest|pediatric]] cardiac arrest management
*Prognosis is poor, with only 16% survival rate<ref name="Ngai" />
 
==Disposition==
*Admit to ICU if ROSC is achieved
*See [[Post Cardiac Arrest]]


==See Also==
==See Also==
[[Thoracic Trauma]]
*[[Blunt cardiac injury]]
*[[Thoracic trauma]]


==Source==
==References==
Tintinalli
<References/>


[[Category:Cards]]
[[Category:Cardiology]]
[[Category:Trauma]]
[[Category:Trauma]]

Latest revision as of 20:56, 17 August 2019

Background

  • Sudden cardiac arrest resulting from blunt chest trauma in absence of underlying cardiac disease[1]
  • 50% of cases due to competitive sports[1]
    • Baseball is most common culprit
  • Autopsy usually shows normal cardiac anatomy with no evidence of damage to heart or other intrathoracic structures[2]

Blunt cardiac injury

Spectrum of Blunt Cardiac Injury
  • A spectrum of disease due to blunt trauma to the chest wall
  • Ranges from cardiac contusion to infarction to cardiac rupture and death.[3]
    • Commotio cordis is sudden cardiac arrest resulting from blunt chest trauma, in absence of underlying cardiac disease[1]
    • Up to 20% of all MVC deaths are due to blunt cardiac injury

Pathophysiology[2]

  • Primary electrical event resulting in induction of Ventricular Fibrillation
  • Likely due to blow occurring 10-30ms before peak of T wave, although this theory is disputed[1]
  • Strike directly over cardiac silhouette ↑ risk of developing commotio cordis
  • Younger patients more at risk - compliant chest wall allows transmission of more energy to the heart.

Clinical Features

Differential Diagnosis

Thoracic Trauma

Evaluation

  • Clinical

Management

  • Standard adult or pediatric cardiac arrest management
  • Prognosis is poor, with only 16% survival rate[2]

Disposition

See Also

References

  1. 1.0 1.1 1.2 1.3 Yousef R, Carr JA. Blunt cardiac trauma: a review of the current knowledge and management. Ann Thorac Surg. 2014 Sep;98(3):1134-40. doi: 10.1016/j.athoracsur.2014.04.043.
  2. 2.0 2.1 2.2 Ngai KY, Chan HY, Ng F. A patient with commotio cordis successfully resuscitated by bystander cardiopulmonary resuscitation and automated external defibrillator. Hong Kong Med J. 2010 Oct;16(5):403-5.
  3. El-Menyar A, Al Thani H, Zarour A, Latifi R. Understanding traumatic blunt cardiac injury. Ann Card Anaesth. 2012 Oct-Dec;15(4):287-95. doi: 10.4103/0971-9784.101875.