THE CONTINUOUS RENAL REPLACEMENT THERAPIES IN THE CRITICALLY ILL PATIENT: FUNDAMENTALS AND COMPONENTS OF THE THERAPY SYSTEM

Abstract

One complication that can occur frequently in critical care is acute renal failure (ARF). Its treatment is one of the most evolved aspects in the management of the critical patient in recent years. The continuous renal replacement therapy (CRRT) have been developed as a result of the technological advances causing greater depurative profitability and greater security, allowing to extend the indications of the same one. This article reviews the advantages and indications of continuous purification techniques, the fundamentals of molecule purification (dialysis and hemofiltration), the technical variants (slow continuous ultrafiltration -SCUF-, continuous venovenous hemofiltration -CVVH-, continuous venovenous hemodialysis -CVVHD- y continuous venovenous hemodiafiltration -CVVHDF-) and the system components (vascular access, catheter, filter, lines, monitor, anticoagulant and replacement solutions)