/Canadian CT Head Rule

Canadian CT Head Rule

Determines need for CT in minor head injury

Total Score

0

Low risk. Brain CT imaging is NOT indicated clinically.

00Low
17High

Disclaimer: The clinical scoring and algorithms on this platform are intended strictly for professional informational purposes. They do not constitute a definitive medical diagnosis, treatment, or clinical decision. The final judgment and responsibility lie with the treating physician.

Yasal Uyarı: Bu platformdaki klinik skorlamalar ve algoritmalar yalnızca sağlık profesyonellerini bilgilendirme amaçlıdır. Herhangi bir kesin tıbbi teşhis, tedavi veya klinik karar yerine geçemez. Nihai karar ve sorumluluk hastayı yatak başında değerlendiren hekime aittir.

Clinical Overview

The Canadian CT Head Rule is a highly sensitive clinical decision-making tool used to identify adult patients with minor head injury (GCS 13-15) who require a CT scan to rule out clinically important brain injury or the need for neurosurgical intervention. It safely optimizes ED resources and reduces radiation exposure.

Clinical Pearl

Only apply this rule to true minor head injuries (history of loss of consciousness, amnesia, or confusion). Do not apply it to a simple scalp laceration if the patient did not experience any of these neurological symptoms.

Pitfalls & Warnings

  • Invalid in patients on anticoagulants or with bleeding disorders; they require a CT scan regardless of the rule.
  • Do not use in pediatric patients under 16 years of age (use the PECARN rule instead).
  • Not applicable if the patient experienced a post-traumatic seizure.

Academic References

Stiell IG, Wells GA, Vandemheen K, et al. The Canadian CT Head Rule for patients with minor head injury. Lancet. 2001;357(9266):1391-1396.

Disclaimer: The clinical scoring and algorithms on this platform are intended strictly for professional informational purposes. They do not constitute a definitive medical diagnosis, treatment, or clinical decision. The final judgment and responsibility lie with the treating physician.