Medical causation cardiac arrest California claims present a distinctive causation structure that differs from most personal injury cases. The defendant is not responsible for causing the underlying medical event itself, but can be held responsible for a preventable injury that resulted from an inadequate response to that event. Successfully litigating these cases requires a precise, medically grounded causation argument that separates what the defendant could not have prevented from what the defendant's own negligence made worse.
Minutes
The unit that decides brain injury outcomes after cardiac arrest
$17.5M
Result in the underlying school emergency case
In a cardiac arrest case involving an undiagnosed or unforeseeable underlying heart condition, plaintiff's counsel must generally concede, and often benefits from directly acknowledging, that the defendant did not cause the cardiac event itself. Attempting to argue otherwise typically weakens the case's credibility, since juries and defense experts alike will readily recognize that a rare, undiagnosed cardiac arrhythmia is not something an untrained bystander or even most trained caregivers could have anticipated. The actual argument focuses on the second, distinct link in the chain: whether a timely and properly executed emergency response, appropriate CPR and, where indicated, defibrillation, would have prevented or substantially reduced the severity of the anoxic brain injury caused by the loss of oxygen before circulation was restored.
A substantial body of medical literature establishes a well-documented relationship between the speed of CPR and defibrillation following cardiac arrest and the likelihood of survival without significant neurological damage. This literature generally shows that the probability of survival without brain damage declines by a meaningful percentage for each minute that passes without effective CPR and defibrillation, making minutes, not hours, the critical unit of analysis. Expert testimony translating this literature into the specific facts of a case, establishing how many minutes elapsed and what the reasonably expected outcome would have been with a prompt response, is often the central evidentiary battleground in litigation involving an inadequate response to pediatric cardiac arrest.
These cases typically require a cardiologist or electrophysiologist to explain the underlying condition, an emergency medicine or resuscitation specialist to establish the standard of care, and a neurologist to connect the duration of oxygen deprivation to the specific anoxic brain injury.
Coordinating those experts so their opinions build a coherent, sequential story, condition, response, delay, and resulting injury, is essential to presenting a persuasive causation case.
Defense counsel often argue the event was so severe the outcome would have been the same regardless of the response. Detailed, case-specific evidence about the particular arrhythmia and its typical response to prompt intervention undercuts that generalized inevitability argument.
Litigation involving a child's cardiac arrest during recess, caused by an undiagnosed arrhythmia disorder and worsened by an inadequate CPR response and no available AED, illustrates this framework directly.
The case behind this page
How the response, not the underlying event, drove the injury and the $17.5 million result.
Read the full caseRelated proof
How a coordinated multidisciplinary team builds the causation and standard-of-care record.
How the expert team is builtRelated breakdowns from this case and our catastrophic injury practice.
We build medically grounded causation cases as counsel or co-counsel and pay statutory referral fees.
Refer a caseYes, liability in these cases typically does not rest on causing the underlying cardiac event, but on whether an inadequate emergency response worsened the resulting injury, such as by allowing preventable anoxic brain damage to occur.
Medical literature shows that the likelihood of surviving cardiac arrest without significant brain damage declines meaningfully with each minute that passes without effective CPR and defibrillation, making response time central to the causation analysis.
Defendants often argue the underlying cardiac event was so severe that the outcome would have been the same regardless of response time, an argument that must be countered with case-specific medical evidence about the particular arrhythmia involved.
