What Is the Best Timing of Repeated CT Scan in Mild Head Trauma with an Initially Positive CT Scan?

Mild traumatic brain injury (MTBI) is among the most common causes of emergency admission. Current guidelines have clearly evidenced risk factors and neurologic signs that should suggest computed tomography (CT) of the head at admission and indications for the first repeated CT scan. However, the role and frequency of further repeated CT scans after an initially positive scan are still unclear