Near infrared spectrophotometry (cerebral oximetry) in predicting the return of spontaneous circulation in out-of-hospital cardiac arrest

• Published in: The American journal of emergency medicine Vol. 32; no. 1; pp. 14 - 17
• Main Authors: Asim, Kalkan, Gokhan, Ersunan, Ozlem, Bilir, Ozcan, Yavasi, Deniz, Ozel, Kamil, Kayayurt, Murat, Ziyan, Aydın, Coskun, Selman, Yeniocak
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 01.01.2014; Elsevier Limited
• Subjects: Brain Chemistry; Cardiopulmonary Resuscitation; Confidence intervals; CPR; Emergency; Emergency medical care; Female; Heart attacks; Heart surgery; Humans; Hypoxia; Ischemia; Male; Middle Aged; Mortality; Out-of-Hospital Cardiac Arrest - diagnosis; Out-of-Hospital Cardiac Arrest - mortality; Oximetry - methods; Oxygenation; Patients; Pediatrics; Spectrophotometry; Spectroscopy, Near-Infrared - methods; Survival; Treatment Outcome
• ISSN: 0735-6757; 1532-8171
• DOI: 10.1016/j.ajem.2013.09.010

Abstract Aim 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. Materials and 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). Conclusion 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.