title: Massive subcutaneous emphysema developing before surgery for mandibular fracture: a case report.
abstract: Preoperative massive subcutaneous emphysema before intubation is extremely rare. However, this complication may be potentially lethal, depend on the condition of air spreading. Subcutaneous emphysema which occurs intra- or postoperative period is sometimes iatrogenic because the air is introduced into the tissue space through the hole injured by the operation. But the emphysema in this case occurred preoperatively by the pressure of the bag valve mask, because the patient had an intra-oral wound, which reaches the submental space. In this report, we describe an extremely rare case of preoperative massive emphysema of the patient with the mandibular fracture.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Ehime University Graduate School of Medicine, Japan. tomoki@m.ehime-u.ac.jp
authors.forename: Tomoki
authors.initials: T
authors.lastname: Sumida
authors.forename: Ayumi
authors.initials: A
authors.lastname: Kobayashi
authors.forename: Ryota
authors.initials: R
authors.lastname: Oka
authors.forename: Toshihiro
authors.initials: T
authors.lastname: Yorozuya
authors.forename: Takumi
authors.initials: T
authors.lastname: Nagaro
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Hamakawa
mesh_terms: D001860:Bone Plates; D002680:Chin / Q000293:injuries; D005593:Fracture Fixation, Internal / Q000295:instrumentation; D006801:Humans; D007442:Intubation, Intratracheal / Q000009:adverse effects* / Q000295:instrumentation; D008297:Male; D008337:Mandibular Fractures / Q000601:surgery*; D008397:Masks / Q000009:adverse effects*; D008478:Mediastinal Emphysema / Q000209:etiology; D008875:Middle Aged; D009333:Neck / Q000473:pathology; D011300:Preoperative Care; D013352:Subcutaneous Emphysema / Q000209:etiology*; D014025:Titanium
chemical_list: D014025:Titanium