[Value of hemodilution in maxillofacial surgery for postoperative traumatic XXXX and graft viability].

@entity2122 @entity1 @entity190 @entity4 @entity957 @entity189
The effects were studied of normovolaemic haemodilution on postoperative traumatic @entity4 after surgical repair of @entity2122 ( @entity2122 ) and on pedicle graft viability after excision of @entity957 of the floor of the mouth (CFM). Fourty @entity1 were studied: twenty operated on for @entity2122 and twenty for CFM. These @entity1 were randomly assigned to the treated or the control groups. The treated ones were operated on under moderate normovolaemic haemodilution induced with a colloid solution (Plasmion). The subsequent haematocrits were 0.29 +/- 0.01 for the @entity2122 group and 0.30 +/- 0.02 for the CFM group. The biometric parameters and the length of the surgical procedures were comparable for the two series. Operative @entity190 was less in the treated series (p less than 0.001 for the @entity2122 group and p less than 0.01 for the CFM group), thus needing less blood transfusion (p less than 0.001). The postoperative @entity4 in the treated @entity2122 series was less (p less than 0.001), although the oncotic pressure and the plasma osmolality were decreased in this series (p less than 0.05). On the other hand, viscosity in the hemodiluted series was significantly decreased in comparison with the control series (p less than 0.001). Graft viability was significantly improved in the treated series (p less than 0.05). Thus, normovolaemic haemodilution was a very useful adjunct in plastic and reconstructive surgery of the face and the mouth. This technique had three advantages: reduction of postoperative traumatic @entity4 after CFM repair, graft viability improvement after mouth @entity189 excision and blood saving in both procedures.
