Blood loss following orthognathic surgery varies widely and sometimes transfusions are needed.

摘要: Article Title and Bibliographic Information Blood loss in orthognathic surgery: a systematic review. Pineiro-Aguilar A, Somoza-Martin M, Gandara-Rey JM, Garcia-Garcia A. J Oral Maxillofac Surg 2011;69(3):885-92. Reviewer Thomas B. Dodson, DMD, MPH Purpose/Question To determine the range of information available to help surgeons better prepare themselves, their patients, auxiliary support for surgery transfusion requirements Source Funding not Type Study/Design Systematic review Level Evidence 2: Limited-quality, patient-oriented evidence Strength Recommendation Grade C: Consensus, disease-oriented evidence, usual practice, expert opinion, or case series studies diagnosis, treatment, prevention, screening