Pain from dissection of the aorta (or rarely the pulmonary artery) is usually very severe and of a tearing or rending character.

• 主动脉剥离引起的疼痛(或肺动脉，但罕见)通常很剧烈，有撕裂或裂开特征，疼痛常始于剥离初期，随后是数小时或数天的无症状期，剥离扩大时再次发作。