Utility of colorimetric end-tidal carbon dioxide detector for monitoring during prehospital cardiopulmonary resuscitation.
The purpose of this study was to evaluate a colorimetric end-tidal CO2 (ETCO2) detector (EASY CAP) as a monitor during prehospital cardiopulmonary resuscitation (CPR) without tracheal intubation. This detector was used for 121 patients during CPR with a laryngeal mask airway or face mask by authorized emergency lifesaving technicians. At 7 to 15 minutes after the initiation of CPR, ETCO was <0.5% in 30 cases (group A), 0.5% to 2.0% in 46 cases (group B) and >2.0% in 45 cases (group C). The rate of return of spontaneous circulation was 17% in group A, 24% in group B, and 48% in group C (groups A v C, P < .01). There was a significant difference in the rate of hospital admission between groups A and C. The ETCO2 value may be useful for monitoring during prehospital CPR with a laryngeal mask airway or face mask.
Nakatani
K
K
Department of Anesthesiology and Intensive Care Medicine, Osaka City University Medical School, Osaka, Japan.
Yukioka
H
H
Fujimori
M
M
Maeda
C
C
Noguchi
H
H
Ishihara
S
S
Yamanaka
I
I
Tase
C
C
D000328:Adult; D000368:Aged; D019296:Capnography / Q000295:instrumentation*; D016887:Cardiopulmonary Resuscitation / Q000295:instrumentation*; D003124:Colorimetry / Q000295:instrumentation*; D004632:Emergency Medical Services; D005260:Female; D006801:Humans; D007564:Japan; D017214:Laryngeal Masks; D008297:Male; D008397:Masks; D008875:Middle Aged; D008991:Monitoring, Physiologic / Q000295:instrumentation*; D010343:Patient Admission; D011446:Prospective Studies; D013990:Tidal Volume