title: The efficacy of a midfacial seal drape in reducing oculofacial surgical field fire risk.
abstract: OBJECTIVE
  To evaluate the efficacy of a midface seal drape in eliminating fire risk oxygen concentrations from nasal cannulated oxygen delivery compared with a standard open oculofacial surgical field.
  
  
  METHODS
  Controlled experiment using the SimMan patient simulator and an oxygen detector. Oxygen concentrations were measured at 9 facial surgical locations with nasal cannula flow rates of 2, 4, and 6 l/min of 100% FiO2 in both the draped and undraped conditions.
  
  
  RESULTS
  The mean oxygen concentration in the oculofacial surgical field with the seal drape was 21.4% and 26.3% without (p = 0.0002; paired t test, 2-tailed). The draped condition provided safe oxygen concentration levels at all anatomical landmarks at all 3 flow rates, whereas the undraped condition was associated with suprathreshold oxygen concentration levels at 13 of 27 measurements. There was a direct correlation between oxygen flow rate and surgical field oxygen concentration in the undraped condition.
  
  
  CONCLUSIONS
  A midfacial seal drape reduced oxygen concentrations from nasal cannula oxygen in the oculofacial surgical field and may reduce fire risk.
authors: Gavin Herbert Eye Institute, University of California, Irvine, California, USA.
authors: Jeremiah P
authors: JP
authors: Tao
authors: Kristin E
authors: KE
authors: Hirabayashi
authors: Brian T
authors: BT
authors: Kim
authors: Feilin A
authors: FA
authors: Zhu
authors: Jeffrey M
authors: JM
authors: Joseph
authors: William
authors: W
authors: Nunery
mesh_terms: D005390:Fires / Q000517:prevention & control*; D006801:Humans; D007431:Intraoperative Complications / Q000517:prevention & control*; D008348:Manikins; D009873:Operating Rooms; D013508:Ophthalmologic Surgical Procedures; D010100:Oxygen / Q000032:analysis; D012138:Respiratory Therapy / Q000295:instrumentation; D058636:Surgical Drapes; D016896:Treatment Outcome
chemical_list: D010100:Oxygen