J Korean Soc Emerg Med.  2018 Dec;29(6):578-584. 10.0000/jksem.2018.29.6.578.

Association between prehospital i-gel insertion and PCOâ‚‚ in patients with out-of-hospital cardiac arrest

• Cho E
• Cho EH
• Kim HH
• Choi SC
• Min YG
• Kang SY
• Chae MK

• KMID: 2432047
• DOI: http://doi.org/10.0000/jksem.2018.29.6.578

Abstract

OBJECTIVE
This study examined the initial partial pressure of carbon dioxide (PCOâ‚‚) as a possible indicator of prehospital ventilation and its association with prehospital i-gel in out-of-hospital cardiac arrest (OHCA) patients.
METHODS
The demographics and arrest parameters, including i-gel insertion and initial arterial blood gas analysis, of OHCA patients who visited the emergency department were analyzed retrospectively. Linear regression analysis was performed to examine the association between i-gel insertion and the initial PCOâ‚‚.
RESULTS
A total of 106 patients were investigated. Fifty-six patients had prehospital i-gel insertion and 50 patients did not have a prehospital advanced airway. The initial PCO₂ was higher in the i-gel group than the no advanced airway group (105.2 mmHg [77.5-134.9] vs. 87.5 mmHg [56.8-115.3], P=0.03). Prehospital i-gel insertion was associated with a higher initial PCO₂ level (βcoefficient, 20.3; 95% confidence interval, 2.6-37.9; P=0.03).
CONCLUSION
Prehospital insertion of i-gel was associated with higher initial PCOâ‚‚ values in OHCA patients compared to no advanced airway.

Keyword

Airway management; Emergency medical services; Heart arrest; Cardiopulmonary resuscitation

MeSH Terms

Airway Management
Blood Gas Analysis
Carbon Dioxide
Cardiopulmonary Resuscitation
Demography
Emergency Medical Services
Emergency Service, Hospital
Heart Arrest
Humans
Linear Models
Out-of-Hospital Cardiac Arrest*
Partial Pressure
Retrospective Studies
Ventilation
Carbon Dioxide