Oral and Maxillofacial Surgery

, Volume 18, Issue 3, pp 305–310 | Cite as

Intraoperative blood loss and blood transfusion requirements in patients undergoing orthognathic surgery

  • Leonardo Perez Faverani
  • Gabriel Ramalho-Ferreira
  • André Luis Silva Fabris
  • Tárik Ocon Braga Polo
  • Guilherme Henrique Souza Poli
  • Cláudio Maldonado Pastori
  • Clóvis Marzola
  • Wirley Gonçalves Assunção
  • Idelmo Rangel Garcia-Júnior
Original Article


Procedures for the surgical correction of dentofacial deformities may produce important complications, whether due to the potential for vascular injury or to prolonged surgery, both of which may lead to severe blood loss. Fluid replacement with crystalloid, colloid, or even blood products may be required. The aim of this study was to assess blood loss and transfusion requirements in 45 patients (18 males and 27 females; mean age 29.29 years, range 16–52 years) undergoing orthognathic surgery, assigned to one of two groups according to procedure type—rapid maxillary expansion or double-jaw orthognathic surgery. Preoperative hemoglobin and hematocrit levels and intraoperative blood loss were measured. There was a substantial individual variation in pre- and postoperative hemoglobin values (10.3–17 and 8.8–15.4 g/dL, respectively; p < 0.05). Mean hematocrit values were 41.53 % preoperatively (range 31.3–50.0 %) and 36.56 % postoperatively (range 25–43.8 %) (p < 0.05). Mean blood loss was 274.60 mL (range 45–855 mL). Only two patients required blood transfusion. Although blood loss and transfusion requirements were minimal in the present study, surgical teams should monitor the duration of surgery and follow meticulous protocols to minimize the risks.


Blood loss Hypovolemic Hematocrit Blood transfusion 


Conflict of interest


Ethical approval

The study protocol was approved by the Research Ethics Committee at Araçatuba Dental School, Universidade Estadual Paulista (UNESP) (protocol no. 2008–02413).


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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Leonardo Perez Faverani
    • 1
    • 4
  • Gabriel Ramalho-Ferreira
    • 1
  • André Luis Silva Fabris
    • 1
  • Tárik Ocon Braga Polo
    • 2
  • Guilherme Henrique Souza Poli
    • 2
  • Cláudio Maldonado Pastori
    • 3
  • Clóvis Marzola
    • 3
  • Wirley Gonçalves Assunção
    • 2
  • Idelmo Rangel Garcia-Júnior
    • 2
  1. 1.Department of Surgery and Integrated Clinic, Araçatuba Dental SchoolUniversidade Estadual Paulista (UNESP)São PauloBrazil
  2. 2.Araçatuba Dental SchoolUniversidade Estadual Paulista (UNESP)São PauloBrazil
  3. 3.Department of Oral and Maxillofacial SurgeryBauru Hospital AssociationBauruBrazil
  4. 4.AraçatubaBrazil

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