Battista R A, Kwartler J A, Martinez D M
Rush-Presbyterian-St. Lukes Medical Center, Department of Otolaryngology and Bronchoesophagology, Chicago, Illinois 60612-3865, USA.
Ear Nose Throat J. 1997 Jan;76(1):43-5.
Complaints of vertigo and dizziness are common problems referred to otolaryngologists for evaluation. Awareness of uncommon causes of dizziness increases the physician's ability to diagnose and treat these patients. We present the case of a middle-aged woman who presented with episodes of vertigo and symptoms suggestive of vertebrobasilar insufficiency. These symptoms were the result of a persistent trigeminal artery (PTA) and occlusive carotid artery disease. A PTA is a carotid-basilar anastomosis that has been reported to be demonstrated on 0.1% to 0.6% of all cerebral angiograms. Persistence of this vessel usually leads to hypoplasia or agenesis of the ipsilateral posterior communicating artery, and leaves the internal carotid artery as the main source of blood supply to the region of the upper brainstem. The appearance and clinical significance of this unusual condition will be discussed.
眩晕和头晕的主诉是耳鼻喉科医生评估的常见问题。了解头晕的罕见原因可提高医生对这些患者的诊断和治疗能力。我们报告一例中年女性病例，该患者出现眩晕发作及提示椎基底动脉供血不足的症状。这些症状是由持续性三叉动脉（PTA）和颈动脉闭塞性疾病引起的。PTA是一种颈动脉-基底动脉吻合，据报道在所有脑血管造影中0.1%至0.6%可见。该血管持续存在通常导致同侧后交通动脉发育不全或缺失，使颈内动脉成为上脑干区域的主要血液供应来源。将讨论这种异常情况的表现及临床意义。
