[Prevention and treatment of cardiac rhythm disorders during hemodialysis].

16 patients with chronic renal failure and cardiac rhythm disorders which appear or aggravate in the course of hemodialysis were followed up. The most frequent cause for the appearance of arrhythmia in the course of hemodialysis is the dialyzing solution containing 2 mmol/l potassium. Some predisposing factors such as age, cardiac failure also play a role. The prophylaxis of these rhythm disturbances can be carried out by increasing the potassium content of the dialyzing solution up to 3.0-3.5 mmol/l. This does not lead to statistically significant increase of the predialysis potassium serum concentration but after the dialysis the serum potassium concentration increases statistically significantly (4.01 mmol/l against 3.29 mmol/l, p less than 0.05). This dialyzing solution is recommended also for the treatment of digitalized patients in order to prevent digitalis intoxication.