Vaĭnshteĭn G B, Iripkhanov B B
Fiziol Zh SSSR Im I M Sechenova. 1980 Jun;66(6):777-82.
The intracranial impedance (34 kHz, AC) decreased by 20--40% during i. v. infusion of hypertonic mannitol and urea solutions (1.5 g/kg) and 1 hr later owing to osmotic dehydration of the brain tissue in cats. The specific resistance of the blood also diminished by 20--30% which contributed significantly to increasing of cerebral impedance oscillations. These findings make impedance methods unreliable for evaluation of cerebral circulation during dehydration therapy.
在给猫静脉输注高渗甘露醇和尿素溶液（1.5克/千克）期间及1小时后，由于脑组织的渗透性脱水，颅内阻抗（34千赫，交流电）降低了20%至40%。血液的电阻率也降低了20%至30%，这对脑阻抗振荡的增加有显著贡献。这些发现使得阻抗法在脱水治疗期间评估脑循环时不可靠。
