The effect of pre-operative autologous blood donation self-transfusion on hormone and postpartum convalescence in Lying-in XXXX .

@entity1 @entity1420 @entity548 @entity4090 @entity53
The aim of the study is to investigate the feasibility of pre-operative autologous blood donation (PABD) self-transfusion on the postpartum recovery and the endocrine in lying-in @entity1 . The PABD is carried out on 70 pregnant @entity1 who have high risk of postpartum @entity548 . Those 70 subjects were divided into three groups: 33 cases of PABD self-transfusion during the Cesarean section; 16 cases of PABD self-transfusion as a physiological means and 21 cases without transfusion. Serum levels of @entity53 (E2), @entity1420 (P), @entity4090 ( @entity4090 ) hormone are evaluated 48 hours before and after labor; Postpartum colostrum timing, milk yield, short term and long term uterine contraction are observed among the cases. No significance were observed among the three groups on E2, P, @entity4090 hormone 48 hours before and after labor. The @entity4090 concentration in PABD self-transfusion group is higher than that in the group without self-transfusion 48 hours after labor. Using different PABD self-transfusion strategies, significant difference of the initial milk yield time were observed in the three groups (F=6.035 P=0.004), but the milk yield is no significant different on second day and third day. The self-transfusion of PABD has little influence on uterine contraction. For the @entity1 who underwent Cesarean Section, the PABD self-transfusion is conducive to the increase of @entity4090 level. The PABD self-transfusion advances the commencement time of milk yield, while with little effect on neither milk yield volume nor uterine contraction.
