Pretreatment to Reduce Pain and Discomfort During Fiberoptic Nasal Pharyngoscopy and Laryngoscopy

Lumbini Medical College

Status and phase: Completed; Phase 4

Conditions: Throat Disorder

Treatments: Drug: Normal saline; Drug: Decongestant (oxymetazoline 0.05%); Drug: Decongestants and Anesthesia (oxymetazoline and lidocaine); Drug: Anesthesia (Lidocaine 15%)

Study type: Interventional

Funder types: Other

Identifiers

NCT03620513

142

Details and patient eligibility

About

Fiberoptic laryngoscopy (FOL) is one of the most common procedure done in an Ear Nose Throat (ENT) clinic. Topical anesthesia or decongestant or both have been used to improve patient comfort level during the procedure. Recently, role of these agents has been questioned. The investigators would like to study whether topical anesthesia or decongestant or their combination provide any benefit to the patients undergoing FOL.

Full description

Patient undergoing Fiberoptic laryngoscopy (FOL) will be randomized into four groups by block randomization. Group one will receive atomized spray of normal saline as placebo before the procedure. Group two will receive two sprays of atomized oxymetazoline (approx 0.18 ml of 0.05% oxymetazoline) with a gap of 10 seconds in between the sprays. Group three will receive two sprays of 15% lidocaine with a gap of 10 seconds in between the sprays. Group four will receive two sprays of oxymetazoline and then two sprays of lidocaine at an interval of two minutes.

Sample size calculation: With alpha error of 0.05, power of .8, mean discomfort scale for placebo of 2.8 (literature review) and SD of 1.1, presuming that the treatment would be able to reduce discomfort by at least 25%, with two tailed test and same SD, minimum sample size would be 40 in each group.

To reduce bias, all the procedure will be performed by senior consultants. Patients and the person performing the procedure will be blinded.

Discomfort of pre-medication, discomfort of scope insertion, pain due to scope insertion, and ease of procedure will be scored as VAS score (1 to 10, 1 is least and 10 is most). Also, patient will be asked how likely s/he is to recommend the similar procedure to his/her friends and family members in case they need to undergo the same. Side effects of pre-medication and procedure will also be noted.

Outcome variables among the groups will be compared using ANOVA test if they are normally distributed.

Enrollment: 160 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Patients undergoing fiberoptic naso pharyngo laryngoscopy in OPD setting
• Consent to study
• above 18 years

Exclusion criteria

• gross nasal mass
• pregnants
• known hypersensitivity to the drugs used for premedication
• who cannot respond to questionnaire during data collection

Trial design

Primary purpose: Prevention

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Triple Blind

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160 participants in 4 patient groups, including a placebo group

Normal Saline nasal spray

Placebo Comparator group

Description:

Two spray (via atomizer) of normal saline in each nostril five minutes prior to fiberoptic procedure

Treatment:

Drug: Normal saline

Decongestant (Oxymetazoline 0.05%)

Experimental group

Description:

Two sprays via atomizer (about 0.18 ml) of oxymetazoline 0.05% (Nasivion) in each nasal cavity five minutes prior to fiberoptic procedure. Two sprays will be given at the gap of ten seconds.

Treatment:

Drug: Decongestant (oxymetazoline 0.05%)

Anesthesia (lidocaine 15%, Nummit)

Experimental group

Description:

Two sprays of 15% lidocaine (Nummit) will be give in each nasal cavity five minutes prior to fiber optic procedure. Two sprays will be given at the gap of ten seconds.

Treatment:

Drug: Anesthesia (Lidocaine 15%)

Decongestant and Anesthesia

Experimental group

Description:

In this group decongestants and anesthesia (oxymetazoline and lidocaine) sprays will be used. Decongestant (Oxymetazoline 0.05%) will be give as described above. After two minutes, lidocaine 15% (Nummit) spray will be given as described above. Procedure will be done after five minutes of decongestant.

Treatment:

Drug: Decongestants and Anesthesia (oxymetazoline and lidocaine)