Does Strepsils® With Lignocaine Lozenges Reduce Post Operative Sore Throat Due To Supraglottic Airway Devices
NCT ID: NCT03944655
Last Updated: 2020-01-28
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.
COMPLETED
NA
88 participants
INTERVENTIONAL
2019-01-17
2019-08-31
Brief Summary
Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.
Patients undergoing surgery with general anaesthesia will require ventilation of their lungs with either a flexible tube placed beyond the voice box called an endotracheal tube (ETT) or a tube placed above the voice box called a Supraglottic Airway Device. This tube helps oxygenate the patient and delivers anaesthetic gas to the lungs.
The procedure is invasive and uncomfortable, and one of the most common complaints is a sore and inflamed throat after the tube is taken out. This is termed postoperative sore throat (POST). The incidence of POST after SAD is comparable with the ETT and though many studies have focused on ETT, few have examined the SAD.
After written informed consent is received in pre-op, a sealed and coded envelope with either the Strepsils lozenges or the placebo lozenges will be given to the patient to be administered orally, with the instruction to dissolve the lozenge by sucking on it 45 minutes prior to surgery. Upon completion of surgery and emergence from general anaesthesia, the patient will be assessed regarding the incidence and severity of sore throat, difficulty in swallowing and difficulty in speaking by the investigator using an interview format. The severity of these symptoms will be graded on a 4-point scale ranging from 0 to 3; 0 being no symptoms, 1 being mild symptoms, 2 being moderate symptoms, and 3 being severe symptoms. This evaluation will be performed at 30 minutes and 24 hours post removal of SAD.
Related Clinical Trials
Explore similar clinical trials based on study characteristics and research focus.
Oro-tracheal Intubation: Flurbiprofen Subglottic Instillation to Prevent Laryngeal Inflammation
NCT04708964
Effect of Lidocaine on Hemodynamic Response and Postoperative Sore Throat
NCT06122324
Laryngeal Injuries After Removal of the Tracheal Tube: A Comparison Between Sevoflurane and Propofol
NCT01616966
Laryngeal Injuries After Anesthesia Induction With Three Different Sevoflurane Concentrations (Without Muscle Relaxant)
NCT01896245
Efficacy of Remifentanil Compared to Lidocaine on the Incidence of Coughing During Emergence of Anesthesia
NCT01026129
Detailed Description
Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.
Many studies have been evaluating the occurrence of POST with the use of an ETT but studies investigating POST and the use of SAD are limited. A recent study comparing sore throat following three SADs (LMA™ Unique, LMA™ Supreme and I-gel®) found that the incidence of POST was not significantly different between any of them.
There are various drugs being extensively investigated to reduce the incidence and severity of POST such as Lignocaine, Dexamethasone, NSAIDs, Liquorice and NMDA receptor antagonists \[1\]. A Cochrane review on the use of Lignocaine for endotracheal intubation concluded that Lignocaine applied topically or administered systemically resulted in reduced risk and severity of POST.
Amylmetacresol and Dichlorobenzyl Alcohol, the active ingredient in the standard preparation of Strepsils® lozenges has been shown to reduce the intensity of sore throat in non-anaesthetised subjects, including one study involving Strepsils® Max Plus lozenges which additionally contains Lignocaine, a local anaesthetic agent. Currently studies that evaluated POST after endotracheal intubation using the standard preparation of Strepsils® (without Lignocaine) have reported a reduction in the incidence and severity of POST.
The effect of Strepsils® Max Plus (with Lignocaine) lozenges on POST and particularly due to SAD is not known and is the basis of this study. It is the investigator's hypothesis that Strepsils® with added Lignocaine will reduce the incidence and severity of POST based on existing studies that showed the individual and combined beneficial effect of both substances.
The goal of this study is to identify a simple, safe, and inexpensive perioperative intervention to reduce the incidence and severity of post operative sore throat due to supraglottic airway devices.
Eligible participants include adult patients scheduled to undergo elective surgery under general anaesthesia using a supraglottic airway device. This study is a prospective, randomised, double-blinded study involving 60 subjects and they will assessed on the incidence and severity of sore throat, dysphagia and dysphonia at 30 minutes and 24 hours after removal of the supraglottic airway device using an interview format.
Outcomes from this study can be extended to patients who will be receiving general anaesthesia using a supraglottic airway device in the future.
Conditions
See the medical conditions and disease areas that this research is targeting or investigating.
Study Design
Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.
RANDOMIZED
PARALLEL
PREVENTION
QUADRUPLE
Study Groups
Review each arm or cohort in the study, along with the interventions and objectives associated with them.
Strepsils
Strepsils Anaesthetic Formula
Oral administration of a Strepsils® Max Plus lozenge containing the active ingredients amylmetacresol 0.6 mg, 2,4-dichlorobenzyl alcohol 1.2 mg, lignocaine hydrochloride 10mg with sweeteners and flavourings.
Placebo
Clear Mint Drops
Oral administration of a lozenge containing glucose syrup, sugar, and flavourings
Interventions
Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.
Strepsils Anaesthetic Formula
Oral administration of a Strepsils® Max Plus lozenge containing the active ingredients amylmetacresol 0.6 mg, 2,4-dichlorobenzyl alcohol 1.2 mg, lignocaine hydrochloride 10mg with sweeteners and flavourings.
Clear Mint Drops
Oral administration of a lozenge containing glucose syrup, sugar, and flavourings
Other Intervention Names
Discover alternative or legacy names that may be used to describe the listed interventions across different sources.
Eligibility Criteria
Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.
Inclusion Criteria
* American Society of Anesthesiologists Class I-II
* Supraglottic Airway Device usage duration \< 2 hours
Exclusion Criteria
* Morbidly obese (body mass index \>35 kg/m2)
* Increased risk of regurgitation or aspiration (eg. symptomatic gastro-oesophageal reflux, hiatus hernia)
* Pregnant or nursing
* Known allergies to study drug
* More than one attempt at Supraglottic Airway Device insertion or use of adjuncts during insertion
* Insertion/presence of a gastric tube
* Expected airway difficulties or conversion to endotracheal tube
18 Years
ALL
Yes
Sponsors
Meet the organizations funding or collaborating on the study and learn about their roles.
Dr Sebastian Sundaraj
OTHER
Responsible Party
Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.
Dr Sebastian Sundaraj
Sponsor-Investigator
Principal Investigators
Learn about the lead researchers overseeing the trial and their institutional affiliations.
Sebastian Sundaraj, MD
Role: PRINCIPAL_INVESTIGATOR
University of Malaya
Locations
Explore where the study is taking place and check the recruitment status at each participating site.
University Malaya Medical Centre
Kuala Lumpur, Kuala Lumpur, Malaysia
Countries
Review the countries where the study has at least one active or historical site.
References
Explore related publications, articles, or registry entries linked to this study.
El-Boghdadly K, Bailey CR, Wiles MD. Postoperative sore throat: a systematic review. Anaesthesia. 2016 Jun;71(6):706-17. doi: 10.1111/anae.13438. Epub 2016 Mar 28.
Macario A, Weinger M, Carney S, Kim A. Which clinical anesthesia outcomes are important to avoid? The perspective of patients. Anesth Analg. 1999 Sep;89(3):652-8. doi: 10.1097/00000539-199909000-00022.
Higgins PP, Chung F, Mezei G. Postoperative sore throat after ambulatory surgery. Br J Anaesth. 2002 Apr;88(4):582-4. doi: 10.1093/bja/88.4.582.
Wong DT, Tam AD, Mehta V, Raveendran R, Riad W, Chung FF. New supraglottic airway with built-in pressure indicator decreases postoperative pharyngolaryngeal symptoms: a randomized controlled trial. Can J Anaesth. 2013 Dec;60(12):1197-203. doi: 10.1007/s12630-013-0044-2. Epub 2013 Oct 5.
L'Hermite J, Dubout E, Bouvet S, Bracoud LH, Cuvillon P, Coussaye JE, Ripart J. Sore throat following three adult supraglottic airway devices: A randomised controlled trial. Eur J Anaesthesiol. 2017 Jul;34(7):417-424. doi: 10.1097/EJA.0000000000000539.
Tanaka Y, Nakayama T, Nishimori M, Tsujimura Y, Kawaguchi M, Sato Y. Lidocaine for preventing postoperative sore throat. Cochrane Database Syst Rev. 2015 Jul 14;2015(7):CD004081. doi: 10.1002/14651858.CD004081.pub3.
Weckmann G, Hauptmann-Voss A, Baumeister SE, Klotzer C, Chenot JF. Efficacy of AMC/DCBA lozenges for sore throat: A systematic review and meta-analysis. Int J Clin Pract. 2017 Oct;71(10). doi: 10.1111/ijcp.13002. Epub 2017 Sep 4.
Ebneshahidi A, Mohseni M. Strepsils(R) tablets reduce sore throat and hoarseness after tracheal intubation. Anesth Analg. 2010 Oct;111(4):892-4. doi: 10.1213/ANE.0b013e3181d00c60. Epub 2010 Feb 8.
Gupta D, Agrawal S, Sharma JP. Evaluation of preoperative Strepsils lozenges on incidence of postextubation cough and sore throat in smokers undergoing anesthesia with endotracheal intubation. Saudi J Anaesth. 2014 Apr;8(2):244-8. doi: 10.4103/1658-354X.130737.
Smith I, Kranke P, Murat I, Smith A, O'Sullivan G, Soreide E, Spies C, in't Veld B; European Society of Anaesthesiology. Perioperative fasting in adults and children: guidelines from the European Society of Anaesthesiology. Eur J Anaesthesiol. 2011 Aug;28(8):556-69. doi: 10.1097/EJA.0b013e3283495ba1.
Ouanes JP, Bicket MC, Togioka B, Tomas VG, Wu CL, Murphy JD. The role of perioperative chewing gum on gastric fluid volume and gastric pH: a meta-analysis. J Clin Anesth. 2015 Mar;27(2):146-52. doi: 10.1016/j.jclinane.2014.07.005. Epub 2014 Nov 28.
Bouvet L, Loubradou E, Desgranges FP, Chassard D. Effect of gum chewing on gastric volume and emptying: a prospective randomized crossover study. Br J Anaesth. 2017 Nov 1;119(5):928-933. doi: 10.1093/bja/aex270.
Timmermann A, Bergner UA, Russo SG. Laryngeal mask airway indications: new frontiers for second-generation supraglottic airways. Curr Opin Anaesthesiol. 2015 Dec;28(6):717-26. doi: 10.1097/ACO.0000000000000262.
Other Identifiers
Review additional registry numbers or institutional identifiers associated with this trial.
201887-6582
Identifier Type: -
Identifier Source: org_study_id
More Related Trials
Additional clinical trials that may be relevant based on similarity analysis.