Blood loss during liposuction.

1. For every 100 cc of aspirate, the average blood content in the aspirate is 18% for females and 23.6% for males. 2. For every 100 cc of aspirate, the average total body blood loss is 37.6 cc for females and 123.2 cc for males. 3. For every 100 cc of aspirate, the average blood loss into the wound (third space loss) is 19.6 cc for females and 99.6 cc for males. 4. For every 100 cc of aspirate, the average decrease in absolute hematocrit is 0.38 for females and 0.88 for males. 5. Males have 3.03 times as much blood loss as females during liposuction. 6. A delay of 15 minutes between the injection of local epinephrine and the onset of liposuction will decrease blood loss by 21.9%. 7. The traditional French Illouz cannula and the American cobra cannula cause approximately the same amount of blood loss. 8. There is no difference in the amount of blood loss when the concentration of epinephrine is diluted from 1:200,000 to 1:400,000. 9. The dry technique resulted in 3.4 times as much bleeding compared with the techniques utilizing epinephrine solutions. 10. The surgeon cannot predict the exact blood loss in an individual patient undergoing liposuction. The results are quite variable from one patient to the next.