Per-oral flexible laryngoscopy in awake neonates
and infants: the ‘pacifier ’ technique
P LOIZOU
1
, N HALOOB
1
, E EVGENIOU
2
1
Department of Otolaryngology and Head and Neck Surgery, The Lister Hospital, Stevenage, and
2
Department of
Plastic Surgery, Wexham Park Hospital, Slough, UK
Abstract
Background: It is common for ENT specialists to be called to neonatal intensive care units to assess neonates with suspected
laryngomalacia. At Addenbrooke’s Hospital, Cambridge, UK, it is standard practice to initially try to assess the larynx whilst the
patient is awake. This can cause the patient to cry and become irritable, and can induce worry in the parents. A literature search
revealed that numerous procedures have been successfully performed on neonates and infants whilst they were being pacified.
Objectives: This paper describes various procedures where pacification has been used effectively. Furthermore, it
reports a pacification technique developed for per-oral flexible laryngoscopy in awake neonates and infants.
Key words: Laryngomalacia; Laryngoscopy; Neonatal Intensive Care
Introduction
Flexible laryngoscopy is now an indispensable tool in ENT
practice. It has superseded direct and mirror laryngoscopy.
This is because it allows the clinician to thoroughly assess
the functional anatomy of the larynx in the awake patient,
without the need for sedation or anaesthesia.
Whilst this is true in adults, assessment of the paediatric
airway still poses a challenge for clinicians. The most
common indication for visualisation of the larynx in the
neonate is stridor, of which laryngomalacia is the main
cause. Per-oral flexible laryngoscopy in the neonate is well
documented. This technique has replaced the more tradition-
al method of rigid laryngoscopy under anaesthesia. It has
been shown to be a safe and effective procedure; however,
in practice it can cause distress to both the patient and
parents, which can impede performance of the procedure.
A number of techniques have been reported in the litera-
ture that aim to reduce the pain and distress experienced by
awake neonates during invasive procedures. We describe a
novel pacifier technique for use during flexible laryngoscopy
for assessment of the neonatal airway.
Materials and methods
The preparation for this technique is quick and easy.
Specifically, a small hole of approximately 5 mm in diameter
is cut from the tip of a sterile disposable bottle teat (available
in most paediatric wards).
The teat is then gently stroked along the corner of the
child’s mouth eliciting the ‘rooting’ reflex, followed by
the sucking reflex. This will pacify the patient. Once the flex-
ible laryngoscope is ready, it can slowly be advanced
through the hole created at the tip of the teat.
This technique keeps the tip of the laryngoscope central,
preventing the neonate from sucking and manipulating the
laryngoscope tip with its tongue.
The child usually remains calm, making the experience
less distressing for both the patient and their parents if
present (Figure 1).
If manipulated gently, the gag reflex may be avoided, pro-
vided that the laryngoscope does not make contact with the
oropharyngeal wall. Another alternative is to spray some fla-
voured topical anaesthetic agent such as benzocaine into the
bottle teat before putting it in the patient’s mouth. The
sucking also elicits swallowing and hence prevents accumu-
lation of saliva in the hypopharynx, thereby enabling a better
view of the hypopharynx and larynx.
At this point of the procedure, the teat can be withdrawn
from the patient’s mouth. This usually leads to phonation
or crying, which enables a view of vocal fold movement
and assessment of the epiglottis (and potential diagnosis of
laryngomalacia) (Figure 2).
The use of a video-laryngoscope allows better views (via a
high-definition screen), and the recording of the footage
enables slow-motion assessment.
Discussion
Assessment of the neonatal airway can be a challenge for the
ENT clinician. The patient can cry, and become very restless
and distressed. This can cause the parents, who are often
present during the procedure, to worry. Hence, the clinician
often has to battle between achieving a good view of the
larynx and minimising distress.
Currently, if flexible laryngoscopy is not tolerated by an
awake neonate or infant, the patient will typically undergo
rigid laryngoscopy under general anaesthesia. In such
instances, the patient is subjected to a more invasive procedure
and anaesthetic risks, causing further distress. This is associated
with logistical challenges too, as the patient will need admitting
to hospital, an operating theatre will be required, and the appro-
priate staff team and paediatric anaesthetists will be needed.
Accepted for publication 5 June 2013 First published online 4 February 2014
The Journal of Laryngology & Otology (2014), 128, 169–170. SHORT COMMUNICATION
© JLO (1984) Limited, 2014
doi:10.1017/S002221511300340X