Gee W, Lucke J F, Madden A E
Research Department, Lehigh Valley Hospital Center, Allentown, PA 18105.
Eur J Vasc Surg. 1989 Aug;3(4):297-301. doi: 10.1016/s0950-821x(89)80064-7.
In 516 patients who had endarterectomies for unilateral severe carotid stenoses, arteriography demonstrated no contralateral severe stenoses or occlusions. Pre and postoperative ocular pneumoplethysmography (OPG-Gee) measured simultaneous bilateral ophthalmic systolic pressures (OSP). Immediately after each OPG test a brachial systolic pressure (BSP) was measured with a stethoscope, cuff and manometer. Bilateral ophthalmobrachial systolic pressure (OBSP) indices were calculated from the three pressures measured with the combined testing. Analysis of these OBSP data indicates that the severe stenoses were relatively well compensated in 314 of the 516 patients (61%) whereas there was limited collateral compensation in the remaining 202 patients (39%). The data also suggest that the latter group incurs a greater element of compensatory central hypertension, which is reversed by carotid endarterectomy.
在516例行单侧严重颈动脉狭窄内膜切除术的患者中，动脉造影显示对侧无严重狭窄或闭塞。术前和术后采用眼体积描记法（OPG - Gee）测量双侧眼收缩压（OSP）。每次OPG测试后立即用听诊器、袖带和血压计测量肱动脉收缩压（BSP）。根据联合检测所测的三种压力计算双侧眼臂收缩压（OBSP）指数。对这些OBSP数据的分析表明，516例患者中有314例（61%）的严重狭窄得到了较好的代偿，而其余202例患者（39%）的侧支代偿有限。数据还表明，后一组患者存在更大程度的代偿性中枢性高血压，颈动脉内膜切除术后这种情况会逆转。
