STOMATOLOGY EDU JOURNAL 2017, Volume 4, Issue 3 SEJ_3-2017_Online | Page 35

Stomatology Edu Journal range range (63–255) missing (%) transfusions 3. Results 3.1. Search results In total, 51 papers and 2 theses were retained for processing. Both retrospective and prospective studies were accepted, no matter if the procedures were done in normotension, mild hypotension, controlled hypotension, or any other tension reported 3.1.1. Mandibular surgery and transfusion need Among the papers that included a subgroup of lower jaw surgery, all but Garg et al. (2010) 6 mentioned the transfusion need (Ash and Mercuri, - International Journal of Oral and Maxillofacial Surgery - Journal of Craniofacial Surgery - Journal of Cranio-Maxillo-Facial Surgery - Journal of Oral and Maxillofacial Surgery - Oral & Maxillofacial Surgery Clinics of North America - Oral and Maxillofacial Surgery - Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics - Plastic and Reconstructive Surgery - Revue de Stomatologie et de Chirurgie Maxillo- faciale An additional manual search was done to retrieve theses on the subject of blood transfusion in orthognathic surgery. Two theses were included (Böttger, 2007; Lassacher, 2008), 4,5 both in German. 2.2. Inclusion criteria The criterion for retention for further processing was a clear allocation of blood loss AND/OR transfusion to one of the following operations: 1) Sagittal Split Osteotomy (SSO) (advancement or set-back); 2) Le Fort I osteotomy one-piece without concomitant procedures; 3) Le Fort I osteotomy multisegmental or with additional operations; 4) Bimaxillary surgery without concomitant procedures; 5) Bimaxillary surgery