title: Effect of End-Tidal Carbon Dioxide Measurement on Resuscitation Efficiency and Termination of Resuscitation.
abstract: OBJECTIVE
  In this study, the value of end-tidal carbon dioxide (ETCO2) levels measured by capnometry were evaluated as indicators of resuscitation effectiveness and survival in patients presenting to the emergency department with cardiopulmonary arrest.
  
  
  METHODS
  ETCO2 was measured after 2 minutes of compression or 150 compressions. ETCO2 values were measured in patients that were intubated and in those who underwent chest compression. The following parameters were recorded for each patient: demographic data, chronic illness, respiration type, pre-hospital CPR, arrest rhythm, arterial blood gas measurements, ETCO2 values with an interval of 5 minutes between the measurement and the estimated time of arrest, time to return to spontaneous circulation.
  
  
  RESULTS
  Cardiac arrest developed in 97 cases, including 56 who were out of the hospital and 41 who were in the hospital. Fifty of these patients returned to spontaneous circulation, and just one of these had an initial ETCO2 value below 10 mmHg. The mean of the final ETCO2 levels was 36.4±4.46 among Patients who Return to Spontaneous Circulation (RSCPs) and 11.74±7.01 among those that died. In all rhythms; Asystole, pulseless electrical activity (PEA) and VF/VT; Overall, RSCPs had higher ETCO2 levels than the cases who died. Among the PEA patients undergoing in-hospital arrests and those asystolic patients undergoing out of hospital arrest, the ETCO2 values of the RSCPs were significantly higher than those of the cases who died.
  
  
  CONCLUSIONS
  ETCO2 levels predicted survival as well as the effectiveness of CPR for patients who received CPR and were monitored by capnometry in the emergency department. As a result, we believe that it would be suitable to use capnometry in all units where the CPR is performed.
authors.affiliation: Department of Emergency Medicine, Bozyaka Training and Research Hospital, Izmir.
authors.forename: Faruk
authors.initials: F
authors.lastname: Ozturk
authors.affiliation: Department of Emergency Medicine, Bozyaka Training and Research Hospital, Izmir.
authors.forename: Ismet
authors.initials: I
authors.lastname: Parlak
authors.affiliation: Department of Emergency Medicine, Bozok University Faculty of Medicine, Yozgat.
authors.forename: Sadiye
authors.initials: S
authors.lastname: Yolcu
authors.affiliation: Department of Emergency Medicine, Suleyman Demirel University Faculty of Medicine, Isparta.
authors.forename: Onder
authors.initials: O
authors.lastname: Tomruk
authors.affiliation: Department of Emergency Medicine, Pamukkale University Faculty of Medicine, Denizli.
authors.forename: Bulent
authors.initials: B
authors.lastname: Erdur
authors.affiliation: Department of Emergency Medicine, Bozyaka Training and Research Hospital, Izmir.
authors.forename: Rifat
authors.initials: R
authors.lastname: Kilicaslan
authors.affiliation: Department of Emergency Medicine, Bozyaka Training and Research Hospital, Izmir.
authors.forename: Ali Savas
authors.initials: AS
authors.lastname: Miran
authors.affiliation: Department of Emergency Medicine, Bozyaka Training and Research Hospital, Izmir.
authors.forename: Serhat
authors.initials: S
authors.lastname: Akay
keywords: Capnography; capnometry; cardiopulmonary arrest; resuscitation