Miasnik B N, Mukhametbaev Sh I, Khodzhibekov M Kh, Sharapov N U, Bakhritdinov F Sh
Zh Nevrol Psikhiatr Im S S Korsakova. 1994;94(2):24-8.
Unilateral occlusion of extracranial cerebral arteries results in asymmetric intracranial flow rate against unaffected regional tissue circulation. Multiple occlusions entail reduction of intracranial circulation even in satisfactory collateral circulation. Reduction of tissue cerebral circulation occurs in well-defined occlusive processes with decompensated collateral circulation in the absence of carbogenic vascular responses. Co2 reactivity may serve a criterium of collateral circulation status and a positive prognostic sign in surgery planning.
颅外脑动脉的单侧闭塞会导致颅内血流速度不对称，影响未受影响区域的组织循环。即使侧支循环良好，多处闭塞也会导致颅内循环减少。在明确的闭塞过程中，当侧支循环失代偿且不存在二氧化碳引起的血管反应时，会出现脑组织循环减少。二氧化碳反应性可作为侧支循环状态的标准以及手术规划中预后良好的指标。
