- 期刊
頭暈病人之椎基底動脈系的血流緩慢現象－病例報告
Slow Blood Flow of the Vertebrobasilar System in a Patient with Dizziness - Case Report
摘要
頭暈或眩暈是耳鼻喉門診及急診常見的症候，它可能是許多種疾病的早期臨床表徵。缺血性腦部病變（包括椎－基底動脈一過性缺血流[vertebrobasilar transient ischemic attack, VBTIA]）是其中一項重要之鑑別診斷。臨床上基底動脈循環不全的診斷得仰賴其它合併的神經學症狀，如果頭暈或眩暈是唯一的症候，這類疾病的診斷則很不容易。有此懷疑時，若想得到確實的診斷，在以往只能憑藉有侵襲性的血管攝影檢查。 近年陸續有報告指出磁振造影(magnetic resonance imaging, MRI)用於有前庭症狀的老年病人，35%可偵測後腦的微小栓塞或血流緩慢(slow blood flow, SBF)現象，而有助於椎－基底動脈一過性血發作的診斷。 本部最近經驗1例頭暈而磁振造影有血流緩慢之病例，因本國文獻上尚無類似報告，故而提出。
並列摘要
Both dizziness and vertigo are the most frequently encountered symptoms in the outpatient clinic or in the emergency service of the otolaryngologic speciality. The differential diagnosis brings a long list of diseases to attention. Ischemic brain disease, including vertebro-basilar insufficiency (VBI), is a major category to be considered. Although the diagnosis of VBI is based on the neurological symptoms and signs; dizziness or vertigo alone presents a great difficulty in making a definite diagnosis. As magnetic resonance imaging (MRI) can demonstrate lacunar infarct or ”slow blood flow” of the hind-brain, it becomes a useful tool to diagnose ischemic brain disease in patients with dizziness or vertigo. We reported a case of MRI diagnosed ”slow blood flow” in the right vertebral artery in a patient with the chief complaint of dizziness.