Pediatric Intubation by Paramedics in a Large Emergency Medical
Services System: Process, Challenges, and Outcomes
Matthew E. Prekker, MD, MPH*; Fernanda Delgado, BS; Jenny Shin, MPH; Heemun Kwok, MD; Nicholas J. Johnson, MD;
David Carlbom, MD; Andreas Grabinsky, MD; Thomas V. Brogan, MD; Mary A. King, MD, MPH; Thomas D. Rea, MD, MPH
*Corresponding Author. E-mail: matthew.prekker@hcmed.org.
Study objective: Pediatric intubation is a core paramedic skill in some emergency medical services (EMS) systems. The
literature lacks a detailed examination of the challenges and subsequent adjustments made by paramedics when
intubating children in the out-of-hospital setting. We undertake a descriptive evaluation of the process of out-of-hospital
pediatric intubation, focusing on challenges, adjustments, and outcomes.
Methods: We performed a retrospective analysis of EMS responses between 2006 and 2012 that involved attempted
intubation of children younger than 13 years by paramedics in a large, metropolitan EMS system. We calculated
the incidence rate of attempted pediatric intubation with EMS and county census data. To summarize the intubation
process, we linked a detailed out-of-hospital airway registry with clinical records from EMS, hospital, or autopsy
encounters for each child. The main outcome measures were procedural challenges, procedural success, complications,
and patient disposition.
Results: Paramedics attempted intubation in 299 cases during 6.3 years, with an incidence of 1 pediatric intubation per
2,198 EMS responses. Less than half of intubations (44%) were for patients in cardiac arrest. Two thirds of patients were
intubated on the first attempt (66%), and overall success was 97%. The most prevalent challenge was body fluids
obscuring the laryngeal view (33%). After a failed first intubation attempt, corrective actions taken by paramedics included
changing equipment (33%), suctioning (32%), and repositioning the patient (27%). Six patients (2%) experienced
peri-intubation cardiac arrest and 1 patient had an iatrogenic tracheal injury. No esophageal intubations were observed.
Of patients transported to the hospital, 86% were admitted to intensive care and hospital mortality was 27%.
Conclusion: Pediatric intubation by paramedics was performed infrequently in this EMS system. Although overall
intubation success was high, a detailed evaluation of the process of intubation revealed specific challenges and
adjustments that can be anticipated by paramedics to improve first-pass success, potentially reduce complications, and
ultimately improve clinical outcomes. [Ann Emerg Med. 2015;-:1-10.]
Please see page XX for the Editor’s Capsule Summary of this article.
0196-0644/$-see front matter
Copyright © 2015 by the American College of Emergency Physicians.
http://dx.doi.org/10.1016/j.annemergmed.2015.07.021
INTRODUCTION
Background
Airway management is a hallmark of pediatric emergency
care, given the frequent involvement of the respiratory
system in acute critical illness. The optimal timing and
setting for invasive airway management (ie, intubation) in
critically ill children is unclear.
1,2
Intubation by paramedics,
if successful, allows early, controlled oxygenation and
ventilation through a patent airway that can also protect
against aspiration. However, emergency care systems
must weigh these potential benefits against potential
complications of pediatric intubation. Challenges to
achieving proficiency in pediatric intubation include
inadequate training, infrequent opportunities to perform
pediatric intubation, anatomic differences in the pediatric
versus the adult airway, inappropriately sized equipment,
unfamiliar drug dosing, and the unpredictable out-of-hospital
environment.
3-5
In the largest clinical trial evaluating pediatric
intubation by paramedics, bag-valve-mask ventilation resulted
in comparable patient survival and neurologic outcomes
compared with intubation, with attempted intubation
delaying transport to a hospital in an urban EMS system.
6
Importance
Many EMS systems consider pediatric intubation a core
paramedic skill.
7,8
And yet substantial variability in the use
of pediatric intubation exists among US EMS systems.
Moreover, overall intubation success in the out-of-hospital
setting has ranged from 57% to 98%, whereas unrecognized
esophageal intubation has occurred in 1% to 3% of cases.
9-13
Volume -, no. - : - 2015 Annals of Emergency Medicine 1
PEDIATRICS/ORIGINAL RESEARCH