The paper shortly summarizes the cominual renal replacemem therapies, including the indications for starting, showing the pluses and minuses of their use in the comparison with imermitent techniques. Auchor shows his own empirience with cominual technigues. In the end describes a sport casuistry of the pacient treaced for acuce renal failure after the long-term cardiac arrest.

        Key words: CWH - indicacion - anticoagulation - acuce renal failure