[Acute normovolemic hemodilution in urologic surgery].
OBJECTIVE
We report the clinical results and efficacy of acute normovolemic hemodilution (ANH) in urologic surgery.


METHODS
Between October 1996 and February 2001 we performed ANH on 47 patients who were expected to have moderate blood loss during surgical procedures in our hospital. We then evaluated the postoperative hematological features and avoidance of homologous transfusion.


RESULTS
Estimated median surgical blood loss was 400 ml (range 10-2,340 ml), and the median amount of whole blood collection was 800 ml (300-1,023 ml). In 14 patients whose blood loss was more than 1,000 ml, the hematocrit (Hct) level in the day after surgery was significantly higher than the Hct level calculated by blood loss. Ninety-eight percent of the series (46/47 cases) and ninety-four percent of patients (15/16 cases) who were underwent radical cystectomy and radical prostatectomy could avoid homologous transfusion.


CONCLUSIONS
Our results indicate that ANH is useful during urological surgery, especially in patients with a blood loss of more than 1,000 ml during surgery. ANH is an efficient method for autologous transfusion by means of not only avoidance of homologous transfusion but also by saving red blood cells during surgeries.
Furuya
Ryoji
R
Department of Urologic Surgery and Andrology, Muroran City General Hospital.
Oda
Toshirou
T
Tachiki
Hitoshi
H
Miyao
Noriomi
N
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016063:Blood Loss, Surgical / Q000706:statistics & numerical data; D001804:Blood Transfusion, Autologous / Q000379:methods* / Q000706:statistics & numerical data; D005260:Female; D006400:Hematocrit; D006438:Hemodilution; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D013520:Urologic Surgical Procedures