Also known as: Brain bleed
Lou suffers a severe epidural hematoma from a car accident which causes a seizure and temporary postictal fugue state, during which he violently attacks Meredith Grey before having no memory of the event. He undergoes surgery and recovers.
Also known as: Collapsed lung
Meredith develops a 30% pneumothorax from multiple blunt force blows to the chest during the assault, requiring chest tube placement to re-expand her lung.
Also known as: Dislocated jaw
Meredith suffers a jaw dislocation with possible fracture from the assault, requiring manual reduction to open her airway for intubation and subsequent wiring shut for weeks during healing.
Also known as: Fractured windpipe
Meredith sustains a tracheal injury from blunt force trauma to the neck during the assault, causing airway compromise and requiring voice rest for healing.
Also known as: Deafness
Meredith experiences bilateral hearing loss from barotrauma to the ears during the assault, with her right ear almost fully recovered but left ear at only 55% hearing at the time shown in the episode.
Also known as: Head laceration
Meredith sustains multiple head contusions and possible concussion from blunt force blows to the head and neck, though evaluation shows no traumatic brain injury or focal neurological deficits.
Also known as: Dislocated elbow
Meredith has an obvious dislocation of the left elbow from the assault, requiring casting and instructions to move her fingers while in the cast.
Also known as: Broken leg
Meredith sustains a left leg fracture requiring casting and non-weight-bearing restrictions, with some swelling prompting a doppler ultrasound to rule out thrombosis.
Also known as: Broken rib
Meredith has left-sided rib fractures with palpable crepitus from the assault, contributing to her chest trauma.
Also known as: Panic attacks
Meredith experiences a severe panic attack while her jaw is wired shut, unable to breathe, requiring emergency removal of the jaw wiring to provide relief.
Also known as: Alcoholism
Amelia's ongoing struggle with sobriety is highlighted when she shows up drunk to see Meredith the night after the attack, driven by guilt over not responding to Meredith's consult request.