耳鸣症状常见,但与心搏节律同步少见。搏动性耳鸣可能为患者仅有的主诉,也可能伴有其他临床表现。其:耳鸣的音调、响度及持续时间各异。病因很多,一般分为动脉性与非动脉性两大类。动脉性原因:①动静脉分流:枕或耳后动脉与横窦之间的动静脉交通。颈内动脉或椎动脉畸形的动静脉交通。较少见的有脑膜中动脉后支与岩上窦交通,颌内动脉与静脉的交通,颈内动脉与海绵窦瘘交通。动静脉瘘的原因有外伤、炎症或先天性因素,这类耳鸣常伴有杂 Common symptoms of tinnitus, but rare synchronous heartbeat rhythm. Pulmonary tinnitus may be the only complaint of the patient, may also be accompanied by other clinical manifestations. Its: tinnitus tone, loudness and duration vary. Many causes, generally divided into arterial and non-arterial two categories. Arterial reasons: ① arteriovenous shunt: occipital or posterior ear artery and transverse sinus arteriovenous traffic. Internal carotid artery or vertebral artery anomalies of arteriovenous traffic. Less common are the posterior branch of the middle meningeal artery and supraspinatus traffic, intracranial artery and vein traffic, internal carotid artery and cavernous fistula traffic. Arteriovenous fistula due to trauma, inflammation or congenital factors, often accompanied by miscellaneous tinnitus