“…With stroke, however, many patients have no pain, which is a characteristic symptom of AAD, so dissection is not obvious from pain during the acute phase of stroke. 2,7, 8 Signs that can be observed during the clinical treatment of stroke include the following, together with the clues in Table. (1) Bradycardia In many cases, AAD comes from the ascending aorta to the right common carotid artery, and bradycardia readily occurs from the carotid reflex.…”