[Electro-encephalographic study of the disequilibrium syndrome during bicarbonate dialysis and acetate dialysis].

Continuous long-time electroencephalographic (EEG) monitoring was performed during AHD and BHD in 20 patients. Persisting normal basic activity of the EEG without neurological symptoms could be found only during the course of BHD. However, in AHD, during the decrease of arterial CO2 tension (PaCO2) we registered EEG disturbances with moderate to severe slowing down, dysrythmic activity and high voltage discharges.

Electroencephalogram investigations of the disequilibrium syndrome during bicarbonate and acetate dialysis.

Continuous long-time electroencephalographic (EEG) monitoring was performed during acetate and bicarbonate dialysis in 20 patients. Persisting normal basic activity of the EEG without neurological symptoms was found only during the course of bicarbonate dialysis. However, in acetate dialysis, during the decrease of arterial CO2 tension (PaCO2), we registered EEG disturbances with moderate to severe slowing, dysrhythmic activity and high voltage discharges.

Advantages of bicarbonate hemodialysis.

Six patients with frequent episodes of symptomatic hypotension during acetate dialysis were treated with bicarbonate dialysis. In all patients blood pressure, heart rate, and arterial acid-base values were measured every 30 minutes during each of the five treatments with acetate dialysis and bicarbonate dialysis. Hemodynamic parameters were measured invasively in all patients during bicarbonate dialysis and in three of them also during acetate dialysis.