title: Near infrared spectrophotometry (cerebral oximetry) in predicting the return of spontaneous circulation in out-of-hospital cardiac arrest.
abstract: OBJECTIVE
  We assessed out-of-hospital cardiac arrest patients' cerebral oxygenation during cardiopulmonary resuscitation (CPR) using near infrared spectrophotometry (NIRS). We evaluated the relation between a rise in patients' cerebral saturation values between the start and end of CPR and return of spontaneous circulation.
  
  
  METHODS
  Twenty-three patients with unwitnessed out-of-hospital cardiac arrest and brought to our emergency department by emergency ambulance were evaluated. Cerebral saturations from time of start of CPR were measured using NIRS. CPR was performed for a maximum of 30 min. The relation between cerebral saturations in patients with or without return of spontaneous circulation was then evaluated.
  
  
  RESULTS
  Twenty-three patients, 12 (52.2%) female and 11 (47.8%) male, with a mean age of 64.09 ± 13.66 were included. A correlation was determined between a rise in cerebral saturation measured throughout CPR and the return of spontaneous circulation (P < .001).
  
  
  CONCLUSIONS
  Patients whose cerebral saturation values measured with NIRS rise during CPR have a higher post-resuscitation survival rate. Monitoring of patients during CPR with this non-invasive technique may be a good method for predicting return of spontaneous circulation.
authors.affiliation: Recep Tayyip Erdogan University Faculty of Medicine, Department of Emergency Medicine, Rize, Turkey. Electronic address: drasimkalkan@hotmail.com.
authors.forename: Kalkan
authors.initials: K
authors.lastname: Asim
authors.affiliation: Recep Tayyip Erdogan University Faculty of Medicine, Department of Emergency Medicine, Rize, Turkey.
authors.forename: Ersunan
authors.initials: E
authors.lastname: Gokhan
authors.affiliation: Recep Tayyip Erdogan University Faculty of Medicine, Department of Emergency Medicine, Rize, Turkey.
authors.forename: Bilir
authors.initials: B
authors.lastname: Ozlem
authors.affiliation: Recep Tayyip Erdogan University Faculty of Medicine, Department of Emergency Medicine, Rize, Turkey.
authors.forename: Yavasi
authors.initials: Y
authors.lastname: Ozcan
authors.affiliation: Akdeniz Faculty of Medicine Department of Biostatistics, Antalya, Turkey.
authors.forename: Ozel
authors.initials: O
authors.lastname: Deniz
authors.affiliation: Recep Tayyip Erdogan University Faculty of Medicine, Department of Emergency Medicine, Rize, Turkey.
authors.forename: Kayayurt
authors.initials: K
authors.lastname: Kamil
authors.affiliation: Recep Tayyip Erdogan University Faculty of Medicine, Department of Emergency Medicine, Rize, Turkey.
authors.forename: Ziyan
authors.initials: Z
authors.lastname: Murat
authors.affiliation: Recep Tayyip Erdogan University Faculty of Medicine, Department of Emergency Medicine, Rize, Turkey.
authors.forename: Coskun
authors.initials: C
authors.lastname: Aydın
authors.affiliation: Haseki Education And Research Hospital, Department of Emergency Medicine, İstanbul, Turkey.
authors.forename: Yeniocak
authors.initials: Y
authors.lastname: Selman
mesh_terms: D001923:Brain Chemistry; D016887:Cardiopulmonary Resuscitation; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D058687:Out-of-Hospital Cardiac Arrest / Q000175:diagnosis* / Q000401:mortality; D010092:Oximetry / Q000379:methods; D019265:Spectroscopy, Near-Infrared / Q000379:methods; D016896:Treatment Outcome