Skip to content

Intranasal Lidocaine Spray Versus Nasogastric Tube Administration in the Emergency Room

Patient Satisfaction and the Effectiveness of Intranasal Lidocaine Spray Versus Nasogastric Tube Administration in the Emergency Room

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07103915
Acronym
Lidocaine
Enrollment
120
Registered
2025-08-05
Start date
2023-11-01
Completion date
2024-08-15
Last updated
2025-08-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Nasogasrtic Tube Insertion

Keywords

intranasal lidocaine, numeric rating scale, Pain, Lidocaine spray, nasogastric tube

Brief summary

The goal of this clinical trial is to evaluate whether 10% intranasal lidocaine spray reduces pain and improves the success rate of nasogastric tube (NGT) insertion compared to placebo in adult emergency department patients. The study's primary outcomes were: Procedure success rate (first-pass success) Pain during insertion, measured by the Numeric Rating Scale (NRS), where 0 = no pain and 10 = worst possible pain. The secondary outcomes included: Duration of the procedure (in seconds) Overall success rate (eventual successful insertion regardless of attempts) Pain score at the 5th minute post-procedure (NRS) Patient preference for the same method in future procedures (yes/no) Procedure satisfaction, assessed using an NRS-based score from 0 (not satisfied at all) to 10 (completely satisfied). Participants were randomized to receive either lidocaine or placebo spray intranasally before standard NGT insertion. Pain, success rate, and satisfaction were compared between groups.

Detailed description

This randomized controlled trial aims to evaluate the effect of intranasal lidocaine 10% spray on patient comfort and pain during nasogastric tube (NGT) insertion in the emergency department. NGT placement is often associated with significant discomfort and anxiety, which can reduce procedural success and patient cooperation. Eligible adult patients requiring nasogastric tube insertion in the emergency setting will be randomly assigned to receive either intranasal lidocaine spray or a placebo spray prior to the procedure. Both groups will undergo standard NGT placement performed by emergency physicians. The primary outcome of the study is the level of pain experienced during the procedure, assessed using the Visual Analog Scale (VAS). Secondary outcomes include patient satisfaction, ease of tube placement from the clinician's perspective, vital signs during the procedure, and any adverse effects related to the spray or procedure. The study seeks to determine whether intranasal lidocaine spray improves procedural comfort and increases overall satisfaction during a commonly performed yet unpleasant emergency intervention.

Interventions

This study evaluates whether intranasal 10% lidocaine spray reduces pain and improves first-pass success during nasogastric tube (NGT) insertion compared to placebo.

OTHERPlacebo

Drug: Placebo Spray (Ethanol-matched solution without lidocaine)

Sponsors

Ankara City Hospital Bilkent
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Masking description

double-blind

Intervention model description

prospective, randomized, placebo-controlled, double-blind study, single centered

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Age 18 years or older * Presentation to the emergency department during the study period and research assistant's working hours * Clinical indication for nasogastric tube (NGT) insertion, including: * Ileus * Gastrointestinal bleeding monitoring * Oral feeding difficulties due to neurological or similar disorders * Intoxication * Provided written informed consent * Did not meet any of the

Design outcomes

Primary

MeasureTime frameDescription
First-Pass Success RateDuring initial NGT insertion attemptRate of initial procedure success
Insertion pain scoreDuring nasogastric tube insertionNumerical Rating Scale:Level of pain experienced during nasogastric tube insertion, as reported by the patient using the Numerical Rating Scale (NRS). The NRS is a validated 10-point scale ranging from 1 (no pain) to 10 (worst imaginable pain). Higher scores reflect more intense pain perception.

Secondary

MeasureTime frameDescription
Nasogastric tube insertion timeDuring procedure (in seconds)Evaluation of nasogastric tube insertion time with/without Lidocaine spray
Patient satisfactionImmediately after procedurePatient preference for the subsequent attempts:Patient satisfaction will be evaluated immediately after the procedure by asking the participant which method they would prefer if a nasogastric tube were needed again. Preference will be recorded as an indicator of satisfaction. The unit of measure is patient-reported preference (yes/no). Higher willingness to repeat the same method is interpreted as higher satisfaction.
Pain Score at 5 Minutes5 minutes after completion of insertionMeasured on the same Numeric Rating Scale(NRS):Pain intensity will be assessed using the Numeric Rating Scale (NRS), a validated tool ranging from 0 to 10, where 0 indicates no pain and 10 indicates the worst possible pain. The score will be recorded 5 minutes after the completion of the insertion procedure. Higher scores correspond to greater pain intensity.
Overall Procedure SuccessWithin 5 minutes of placementSuccessful NGT placement, regardless of number of attempts.

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026