[A modified technic of preoperative acute normovolemic hemodilution--the advantages and economic effect of its use in planned colorectal surgery].

In a prospective and comparative study were included 129 patients undergone planned operation for colorectal cancer. They were divided in two randomized groups: Group A consisted of 65 patients operated under conditions of preoperative acute normovolemic hemodilution (PANHD) by an own modified technique with Ringer-lactate and hemodex. Group B (control) included 64 patients operated with the use of homologous blood substitution.

[The use of skin-muscle flaps in decubitus ulcer treatment].

For the period 1981 up to 1987 25 patients with a total of 27 decubital ulcers have been healed successfully in the II. Clinic of Surgery, Med. Faculty in Pazardzhik, and the University Clinic of Burns in Sofia.