Magaard F, Ekeström S
Scand J Thorac Cardiovasc Surg. 1976;10(1):85-95. doi: 10.3109/14017437609167774.
Preoperative haemodynamic studies were performed in 60 out of 64 patients operated upon for occlusive disease of the subclavian artery. The pressure differences over the occlusive lesion were recorded in 53 patients. Blood flow was studied in 56 patients with the aid of electromagnetic flowmetry. The average mean pressure difference was 30 mmHg in 6 patients with occlusion of the brachiocephalic trunk and 20 mmHg in 20 patients with left subclavian artery occlusion. In 3 patients with right subclavian occlusion it was 17 mmHg. The highest individual mean pressure differences were found in patients with multiple occlusive lesions in extracranial cephalic arteries. Stenoses of the brachiocephalic trunk and the subclavian arteries in general caused a lower average mean pressure difference than the occlusions. Vertebral blood flow in cases of occlusion of the proximal part of the subclavian artery was usually reversed.
64例因锁骨下动脉闭塞性疾病接受手术的患者中，60例进行了术前血流动力学研究。53例患者记录了闭塞病变处的压力差。56例患者借助电磁流量计研究了血流情况。头臂干闭塞的6例患者平均平均压力差为30 mmHg，左锁骨下动脉闭塞的20例患者为20 mmHg。右锁骨下动脉闭塞的3例患者为17 mmHg。颅外头动脉多发闭塞性病变的患者个体平均压力差最高。头臂干和锁骨下动脉的狭窄总体上导致的平均平均压力差低于闭塞。锁骨下动脉近端闭塞时椎动脉血流通常反向。
