Oh...forgot the very common pericardial effusion that can lead to tamponade , but not necessarily. Hematoma around the aortic root can contribute to impaired coronary flow in the absence of the dissection involving the coronaries directly.
Just did one of these on Thursday night, coincidentally....
And I guess theoretically an intramural hematoma at the root could also effect the conduction system directly leading to an intraventricular conduction delay.