title: Orthognathic surgery with or without induced hypotension.
abstract: This study involved a retrospective evaluation of patients subjected to surgery for dentofacial deformities treated without induced controlled hypotension (group I, n=50) and a prospective evaluation of patients who were subjected to surgery under hypotensive general anaesthesia (group II, n=50). No statistical differences were found between the study groups with regard to the duration of surgery. However, there were statistically significant differences in the need for blood transfusion and the occurrence of bradycardia during the maxillary down-fracture. Hypotensive anaesthesia decreased the need for a blood transfusion and the occurrence of bradycardia, and is therefore considered highly beneficial for patients undergoing orthognathic surgery.
authors: School of Medical Sciences of Botucatu, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brazil.
authors: E
authors: E
authors: Carlos
authors: Dental School of Araraquara, Universidade Estadual Paulista (UNESP), Araraquara, SP, Brazil. Electronic address: monnazzi@ig.com.br.
authors: M S
authors: MS
authors: Monnazzi
authors: School of Medical Sciences of Botucatu, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brazil.
authors: Y M M
authors: YM
authors: Castiglia
authors: Dental School of Araraquara, Universidade Estadual Paulista (UNESP), Araraquara, SP, Brazil.
authors: M F R
authors: MF
authors: Gabrielli
authors: Division of Plastic Surgery, Department of Surgery, School of Medical Sciences, Universidade Estadual de Campinas (Unicamp), Campinas, SP, Brazil.
authors: L A
authors: LA
authors: Passeri
authors: Dental School of Araraquara, Universidade Estadual Paulista (UNESP), Araraquara, SP, Brazil.
authors: N C
authors: NC
authors: Guimarães
mesh_terms: D000768:Anesthesia, General; D001919:Bradycardia / Q000453:epidemiology; D017707:Erythrocyte Transfusion / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D007023:Hypotension, Controlled; D008297:Male; D061646:Operative Time; D056948:Orthognathic Surgical Procedures; D011446:Prospective Studies; D012189:Retrospective Studies; D016896:Treatment Outcome
keywords: Controlled hypotension; Orthognathic surgery; Osteotomy