PharyngitisNCT00798018
Effect of Intra-cuff Lidocaine and Tetracaine on Tracheal Tube-induced Emergence Phenomena
A study testing 2% lidocaine, 1% tetracaine and N.S in people with Pharyngitis, run by Sichuan University at 1 site in China.
Trial summary
It has been proven that tracheal tube inflated with lidocaine could decrease the post-intubation sore throat in nitrous oxide anesthesia. In the study, the investigators would like to evaluate the effect of lidocaine inflation in non-nitrous oxide anesthesia and compare the effect of tetracaine, the best mucosal local… Read more about this study
- Who is it for?
- Ages 18 to 60 years, women only
- Conditions the study is for
- Pharyngitis
- What is being tested?
- 2% lidocaine, 1% tetracaine and N.S
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 100 participants
- Where
- 1 siteChina
- Study dates
- Oct 2008to Feb 2009
- Phase
- Interventional
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 60 years
- Women only
- No healthy volunteers
- Adult
Who may be able to join
- patients of the age group 18-60 years
- patients belonging to ASA grade I and II undergoing gynecological surgeries in supine position under general anesthesia with controlled ventilation using Poly Vinyl Chloride ETT (same type and make in all patients)
Who cannot join
- anticipated difficult intubation
- more than one attempt for intubation
- need for naso gastric tube
- episode of coughing and straining
- history of respiratory tract infection and smoking
Trial locations and contacts
1 site in 1 country.
China1 site
Department of Anesthesiology, West China Second Hospital, Sichuan University
Chengdu, Sichuan, 610041
About this study
It has been proven that tracheal tube inflated with lidocaine could decrease the post-intubation sore throat in nitrous oxide anesthesia. In the study, the investigators would like to evaluate the effect of lidocaine inflation in non-nitrous oxide anesthesia and compare the effect of tetracaine, the best mucosal local anesthetics with lidocaine.
Read the detailed description
The female patients receiving gynecological surgeries were divided into air, saline and 2% lidocaine and 1% tetracaine groups of 25 each using sealed envelope technique. The cuff of the endotracheal tube was inflated by the inflation medium (with the help of intracuff pressure monitoring device) to occlude the leak around the tube by the Minimal Occlusive Volume Technique. This was done by the same anaesthesiologist in all the patients. The cuff volume and pressure were then recorded. The primary outcome of the study was to evaluate the post-intubation sore throat using the visual analogue scale 6h, 24h and 48h after extubation. The secondary outcomes were incidence of complications during emergence of anesthesia and after extubation. Intra-cuff pressure monitoring was done with a pressure monitor, which consisted of the pressure gauge, three-way stopcock whose one end was attached to the pressure monitoring line. Net volume of the inflation medium was noted. Volume of the inflation medium, intra cuff pressure, duration from intubation to extubation and volume of the inflation medium withdrawn from the cuff was noted. Incidence (Yes/No) of tube intolerance, coughing on tube, restlessness, hoarseness, sore throat, breathlessness and laryngospasm were analyzed by the anaesthesiologist who did not know which group the patient belonged to.
- Conditions
- Pharyngitis
- Being tested
- 2% lidocaine, placebo, 1% tetracaine, N.S
- Keywords
- lidocaine, tetracaine, tracheal intubation, pharyngitis
- Medical subject headings
- Pharyngitis
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
2% lidocaineDrug
lidocaine: 2%, injected into the cuff to seal the space between the trachea and the tube at minimal volume
placeboDrug
Air injected into the cuff to seal the space between the trachea and the tube at minimal volume
1% tetracaineDrug
tetracaine: 1%, injected into the cuff to seal the space between the trachea and the tube at minimal volume
N.SDrug
0.9% Normal saline injected into the cuff to seal the space between the trachea and the tube at minimal volume
| Study group | Role | What they receive |
|---|---|---|
| Air | Placebo comparator | air was used to inflate the cuff. Receives: Drug: placebo |
| Normal Saline | Placebo comparator | Normal saline was used to inflate the cuff. Receives: Drug: N.S |
| lidocaine | Active comparator | 2% lidocaine was used to inflate the cuff. Receives: Drug: 2% lidocaine |
| tetracaine | Experimental | 1% tetracaine was used to inflate the cuff. Receives: Drug: 1% tetracaine |
What is being measured
The primary outcome is the main question the study is designed to answer.
Visual Analogue Scale(0-100mm) by the Subject.
visual analogue scale (VAS) was used to evaluate the post-intubation sore throat. The VAS was a well-recongnized standard tool for rating of pain. The VAS measures exactly 100 mm. 0 means no pain and 100 means the worst pain that one can image. Patient marks a point on the line that matches the amount of pain he or she feels.
Measured: 6 hours, 12 hours, 24 hours, 48 hours after extubation
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted25 Nov 2008 (estimated)
- Study startOct 2008
- Primary completionFeb 2009
- Study completionFeb 2009
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for PharyngitisStudies of the same condition, open and under way.
- More trials run by Sichuan UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Outcomes assessor
- Enrolment
- 100 participants (actual)
Sponsor and investigators
- Lead sponsor
- Sichuan University
- Sponsor type
- University, hospital or other
- Investigators
- Han Huang, M.D, Principal investigator, Department of Aensthesiology, West China 2nd Hospital, Sichuan University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00798018
- Sponsor's protocol ID
- ICLT
- Status last verified
- Nov 2009
- First submitted
- 24 Nov 2008
- Last updated
- 18 Dec 2009
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
Publications
Estebe JP, Delahaye S, Le Corre P, Dollo G, Le Naoures A, Chevanne F, Ecoffey C. Alkalinization of intra-cuff lidocaine and use of gel lubrication protect against tracheal tube-induced emergence phenomena. Br J Anaesth. 2004 Mar;92(3):361-6. doi: 10.1093/bja/aeh078.
PubMed 14970135
Study at a glance
From the registry record, last updated by the sponsor on 18 Dec 2009. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effect of Intra-cuff Lidocaine and Tetracaine on Tracheal Tube-induced Emergence Phenomena
- ClinicalTrials.gov ID
- NCT00798018
- Acronym / sponsor ID
- ICLT
- Conditions
- Pharyngitis
- Keywords
- lidocaine, tetracaine, tracheal intubation, pharyngitis
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 100 participants (actual)
- Lead sponsor
- Sichuan UniversityUniversity, hospital or other
- Study start
- Oct 2008
- Primary completion
- Feb 2009 (actual)
- Study completion
- Feb 2009 (actual)
- First posted
- 25 Nov 2008 (estimated)
- Results
- Posted 18 Dec 2009
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
It has been proven that tracheal tube inflated with lidocaine could decrease the post-intubation sore throat in nitrous oxide anesthesia. In the study, the investigators would like to evaluate the effect of lidocaine inflation in non-nitrous oxide anesthesia and compare the effect of tetracaine, the best mucosal local anesthetics with lidocaine.
Detailed description
The female patients receiving gynecological surgeries were divided into air, saline and 2% lidocaine and 1% tetracaine groups of 25 each using sealed envelope technique. The cuff of the endotracheal tube was inflated by the inflation medium (with the help of intracuff pressure monitoring device) to occlude the leak around the tube by the Minimal Occlusive Volume Technique. This was done by the same anaesthesiologist in all the patients. The cuff volume and pressure were then recorded. The primary outcome of the study was to evaluate the post-intubation sore throat using the visual analogue scale 6h, 24h and 48h after extubation. The secondary outcomes were incidence of complications during emergence of anesthesia and after extubation. Intra-cuff pressure monitoring was done with a pressure monitor, which consisted of the pressure gauge, three-way stopcock whose one end was attached to the pressure monitoring line. Net volume of the inflation medium was noted. Volume of the inflation medium, intra cuff pressure, duration from intubation to extubation and volume of the inflation medium withdrawn from the cuff was noted. Incidence (Yes/No) of tube intolerance, coughing on tube, restlessness, hoarseness, sore throat, breathlessness and laryngospasm were analyzed by the anaesthesiologist who did not know which group the patient belonged to.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, outcomes assessor)
- Number of arms
- 4
| Arm | Type | Receives |
|---|---|---|
| Air | Placebo comparator | Drug: placeboair was used to inflate the cuff. |
| Normal Saline | Placebo comparator | Drug: N.SNormal saline was used to inflate the cuff. |
| lidocaine | Active comparator | Drug: 2% lidocaine2% lidocaine was used to inflate the cuff. |
| tetracaine | Experimental | Drug: 1% tetracaine1% tetracaine was used to inflate the cuff. |
Who may qualify
- Ages
- 18 to 60 years
- Sex
- Female only
- Healthy volunteers
- Not accepted
- Age groups
- Adult
Key inclusion criteria (2 listed)
- patients of the age group 18-60 years
- patients belonging to ASA grade I and II undergoing gynecological surgeries in supine position under general anesthesia with controlled ventilation using Poly Vinyl Chloride ETT (same type and make in all patients)
Key exclusion criteria (5 listed)
- anticipated difficult intubation
- more than one attempt for intubation
- need for naso gastric tube
- episode of coughing and straining
- history of respiratory tract infection and smoking
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| 2% lidocainelidocaine: 2%, injected into the cuff to seal the space between the trachea and the tube at minimal volume | Drug | lidocaine |
| placeboAir injected into the cuff to seal the space between the trachea and the tube at minimal volume | Drug | Air |
| 1% tetracainetetracaine: 1%, injected into the cuff to seal the space between the trachea and the tube at minimal volume | Drug | tetracaine |
| N.S0.9% Normal saline injected into the cuff to seal the space between the trachea and the tube at minimal volume | Drug | Normal Saline |
Primary outcome
Visual Analogue Scale(0-100mm) by the Subject.
Time frame: 6 hours, 12 hours, 24 hours, 48 hours after extubation
visual analogue scale (VAS) was used to evaluate the post-intubation sore throat. The VAS was a well-recongnized standard tool for rating of pain. The VAS measures exactly 100 mm. 0 means no pain and 100 means the worst pain that one can image. Patient marks a point on the line that matches the amount of pain he or she feels.
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 18 Dec 2009.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Background: PubMed 14970135Estebe JP, Delahaye S, Le Corre P, Dollo G, Le Naoures A, Chevanne F, Ecoffey C. Alkalinization of intra-cuff lidocaine and use of gel lubrication protect against tracheal tube-induced emergence phenomena. Br J Anaesth. 2004 Mar;92(3):361-6. doi: 10.1093/bja/aeh078.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Han Huang, M.D principal investigator
Department of Aensthesiology, West China 2nd Hospital, Sichuan University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing 2% lidocaine, 1% tetracaine and N.S in people with Pharyngitis, run by Sichuan University at 1 site in China.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 18 Dec 2009. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Yes. Results are posted in the registry (first posted 18 Dec 2009). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Visual Analogue Scale(0-100mm) by the Subject. (time frame: 6 hours, 12 hours, 24 hours, 48 hours after extubation). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00798018, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Dec 2009; AzTrials last refreshed its copy on 8 Nov 2026.