[Parenteral nutrition in hematologic patients treated with hematopoietic stem cell transplantation].

The transplant of haematopoyetic parent cells is on common way of treating haematological neoplasias and other types of immunological and tumoural disorders. The aggressive nature of the treatment, leading to peculiar nutritional and metabolic conditions in these patients, as well as the notable incidence of complications, have meant that nutritional support is included in the therapeutic armoury. As in other clinical situations, we are currently able to go beyond merely ensuring the necessary nutritional support. We can also influence the progress of the illness by means of the provision of specific substrates which interfere in a positive manner with the disturbed intermediate metabolism. Even more, in some of these substrates we can find a nutrient drug action.