Does cricoid pressure change the view at laryngoscopy in infants?

ISRCTN	ISRCTN22864221
DOI	https://doi.org/10.1186/ISRCTN22864221
Protocol serial number	N0205128955
Sponsor	Department of Health
Funder	Barts and The London NHS Trust (UK)

Prospectively registered

Protocol

Statistical analysis plan

Results

Individual participant data

Record updated in last year

Plain English summary of protocol

Not provided at time of registration

Dr S Bhatia
Scientific

Anaesthetic Dept
Royal London Hospital
Whitechapel
London
E1 1BB
United Kingdom

Primary study design	Interventional
Study design	Randomised controlled trial
Secondary study design	Randomised controlled trial
Study type	Participant information sheet
Scientific title	Does cricoid pressure change the view at laryngoscopy in infants?
Study objectives	Does cricoid pressure change the view at laryngoscopy in infants?
Ethics approval(s)	Not provided at time of registration
Health condition(s) or problem(s) studied	Not Applicable: Laryngoscopy
Intervention	Blinded crossover study
Intervention type	Other
Primary outcome measure(s)	Estimate of the percentage area of larynx seen at each laryngoscopy by anaesthetist
Key secondary outcome measure(s)	Not provided at time of registration
Completion date	30/06/2006

Participant type(s)	Patient
Age group	Child
Upper age limit	5 Years
Sex	Not Specified
Target sample size at registration	80
Key inclusion criteria	40 patients under 1 year of age, 40 patients between 1 and 5 years.
Key exclusion criteria	Does not meet inclusion criteria
Date of first enrolment	01/09/2003
Date of final enrolment	30/06/2006

Royal London Hospital

London
E1 1BB
United Kingdom

Individual participant data (IPD) Intention to share	No
IPD sharing plan summary	Not provided at time of registration
IPD sharing plan

Output type	Details	Date created	Date added	Peer reviewed?	Patient-facing?
Participant information sheet	Participant information sheet	11/11/2025	11/11/2025	No	Yes