[Autologous blood transfusion in cardiac surgery over 70-year-old patients].
We discussed the problems for autologous blood transfusion particularly in the preoperative blood donation about the patients over 70-year-old who underwent cardiac surgery in contrast with the younger patients. Following results were obtained: 1) Because aged patients have the tendency of anemia before predonation, full storage of blood donation could not be successed. 2 of 8 over 70-year-old patients were able to do the preoperative phlebotomy, and their mean volume were 355 gram as whole blood. On the other hand, 96% patients in younger group were phlebotomized preoperatively, and their mean value of storaged blood volume were 757 gram. 2) As the examinations about the iron-related parameters, not all aged patients were iron deficiency status. Their reticulocyte counts were nearly equal level to the younger group and plasma concentration of erythropoietin were higher in the aged patients than that in the younger group. These results indicate that erythropoiesis in the bone marrow was deteriorated in the aged patients. 3) In aged patients, all of them were required homologous blood transfusion at their perioperative terms. We thought that they have had the anemia before preoperation and our tolerable, allowable level to the postoperative anemia was not lower in the aged patients as against to the younger group. 4) We performed the autologous plasma donation with the membranous plasma separator added to the whole blood donation. It was easy and safe method, and circulatory indices were not changed before and after plasma-separation even in the aged patients. These autologous plasma were usefully administered as the volume expander postoperatively.
Ono
Y
Y
Division of Cardiovascular Surgery, Aomori City Hospital, Japan.
Momokawa
T
T
Narita
J
J
Hatanaka
R
R
Munakata
M
M
Fukui
K
K
Suzuki
S
S
Koie
H
H
D000368:Aged; D000747:Anemia, Hypochromic / Q000097:blood; D001804:Blood Transfusion, Autologous / Q000009:adverse effects*; D006348:Cardiac Surgical Procedures; D004921:Erythropoietin / Q000032:analysis; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010949:Plasma; D011300:Preoperative Care; D017701:Reticulocyte Count
D004921:Erythropoietin