Tarzamni Mohammad K, Afrasyabi Abbas, Farhoodi Mehdi, Karimi Fatemeh, Farhang Sara
Associate professor of Radiology, Department of Radiology, Tabriz university of medical sciences, Tabriz, Iran.
Cardiovasc Ultrasound. 2007 Jan 10;5:3. doi: 10.1186/1476-7120-5-3.
Coronary artery bypass grafting ranks as one of the most frequent operations worldwide. The presence of carotid artery stenosis may increase the stroke rate in the perioperative period. Routine preoperative noninvasive assessment of the carotid arteries are recommended in many institutions to reduce the stroke rate.
271 consecutive patients undergoing coronary artery bypass grafting at Shaheed Madani hospital of Tabriz, Iran (age, 58.5 Y; 73.1% male) underwent preoperative ultrasonography for assessment of carotid artery wall thickness.
Plaque in right common, left common, right internal and left internal carotid arteries was detected in 4.8%, 7.4%, 43.2% and 42.1% of patients respectively. 5 patients (1.8%) had significant (<50%) and 3 (1.1%) patients had critical (<70%) stenosis in internal carotid arteries. Plaque formation in common carotid was not significantly different between two genders but the stenosis of left internal carotid was more frequently seen among men. Patients with plaques in right or left internal carotid arteries were significantly older.
Consecutive Iranian patients undergoing elective coronary artery bypass surgery show a very low prevalence of significant carotid artery disease.
冠状动脉搭桥术是全球最常见的手术之一。颈动脉狭窄的存在可能会增加围手术期的中风发生率。许多机构建议对颈动脉进行常规术前无创评估以降低中风发生率。
伊朗大不里士沙希德·马达尼医院连续271例行冠状动脉搭桥术的患者（年龄58.5岁；73.1%为男性）接受术前超声检查以评估颈动脉壁厚度。
分别在4.8%、7.4%、43.2%和42.1%的患者中检测到右侧颈总动脉、左侧颈总动脉、右侧颈内动脉和左侧颈内动脉有斑块。5例患者（1.8%）颈内动脉有严重（<50%）狭窄，3例患者（1.1%）有临界（<70%）狭窄。颈总动脉斑块形成在两性之间无显著差异，但左侧颈内动脉狭窄在男性中更常见。右侧或左侧颈内动脉有斑块的患者年龄明显更大。
连续接受择期冠状动脉搭桥手术的伊朗患者中，严重颈动脉疾病的患病率非常低。
