Debridement and Functional Endoscopic Sinus Surgery

Chronic Rhinosinusitis (Diagnosis) Clinical Trial

Official title:

The Efficacy of Debridement of the Sinus Cavity Following Primary Functional Endoscopic Sinus Surgery (FESS): A Randomized Controlled Trial.

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT04093193
• Other study ID #: H15-02071
• Status: Recruiting
• Phase: N/A
• Start date: June 22, 2018
• Est. completion date: September 1, 2021

Study information

• Verified date: September 2019
• Source: St. Paul's Hospital, Canada
• Contact: Amin Javer, MD FRCSCFARS
• Phone: 6048069926
• Email: sinusdoc[@]me.com
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Functional endoscopic sinus surgery (FESS) is the gold standard surgical intervention for management of patients with chronic rhinosinusitis (CRS). Synechiae formation in the middle meatus is the most common complication of endoscopic sinus surgery after FESS. Nasal debridement is a postoperative procedure used in the prevention of synechiae formation. This procedure lacks standardized evidence-based guidelines. The currently existing studies that have been conducted to determine the efficacy of post-operative debridement have shown conflicting results. We hypothesize that there is no difference in short and long term clinical outcomes between patients who had routine post-operative nasal debridement following FESS and patients who did not have post-operative nasal debridement.

Description:

Purpose The purpose of this study is to assess the efficacy of post-FESS nasal debridements in the prevention of post-operative synechiae formation.

Hypothesis There is no difference in short and long term clinical outcomes between patients who had routine post-operative nasal debridement following FESS and patients who did not have post-operative nasal debridement.

Justification To prevent synechiae formation, many studies have been published evaluating the efficacy of post-operative debridement procedures. Many of these studies have shown conflicting results. There were many inconsistent variables between the studies, such as limited follow-up periods, varying extent of surgery, and variability in pre and post-operative treatment.

With a well designed study, we would like to assess if there is a difference in the incidence of formation of middle meatal synechiae between patients who have debridement and patients who don't.

This will further add much needed evidence to the need for this procedure in the post operative period following FESS.

Surgery The participants in this study will all undergo standard-of-care functional endoscopic sinus surgery (FESS) to treat their sinus disease. No changes will be made to pre-operative or operative protocol on account of this study. All post-operative standard-of-care procedures and medication will be maintained.

Follow up visits After FESS, participant subjects will be asked to return for 4 follow-up visits within the first 90 days and one follow-up visit at 180 days. They will be asked to return at 6, 30, 60, 90 and 180 days following their sinus surgery. At their 6 and 30 day follow-up visits they will either receive or not receive routine post-operative debridement depending on randomization.

Statistical Analysis

Sample size calculations A sample size calculation was performed to determine the appropriate number of patients required to adequately compare the incidence of synechiae between participants with versus without postoperative debridement following FESS. Previous investigations at the St. Paul's Sinus Centre have found that of post-FESS cases, 18% develop synechiae from use of gloved-Merocel middle meatal spacers. Utilizing a type I error of 5%, type II error of 20%, effect difference of 15% and 10% loss to follow-up, a total of 150 patients are required (75 per arm).

Statistical Comparisons The primary objective of this randomized controlled trial will be to compare the incidence of synechiae between subjects receiving debridement versus those receiving saline irrigation (no debridement) up to 180 days post-surgery. Count and absolute percentages of synechia incidence will be reported. The Chi-Squared test will be used to determine statistical significance between incidence rates. Probability values less than 5% (α=0.05) will be considered significant. Corresponding odds ratios and 95% confidence intervals will be reported.

For the secondary outcome measures (e.g. Sinonasal Outcomes Test 22 SNOT-22, PJESS/MLK), results will be summated and considered as continuous, numerical variables. Descriptive statistics using mean, median, standard deviation and inter-quartile ranges will be reported. The unpaired two sample student t-tests will be applied to investigate the difference between the means of the various outcome measures. Probability values less than 5% (α =0.05) will also be considered statistically significant.

Baseline demographics and clinical factors will be compared between each treatment group to determine whether randomization yielded comparable groups. Multivariable logistic and linear regression will be used to investigate the relationship between postoperative debridement and the primary (incidence of synechiae) or secondary outcomes (PJESS/MLK).

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 150
• Est. completion date: September 1, 2021
• Est. primary completion date: July 1, 2021
• Accepts healthy volunteers: No
• Gender: All
• Age group: 19 Years and older

Eligibility

Inclusion Criteria:

• Over the age of 19;

• Have chronic sinus disease (CRS) and are scheduled to undergo sinus surgery on both sides of your nose for the first time.

Exclusion Criteria:

• Unable to speak English;

• Are having surgery for the removal of a nasal tumor;

• Have a disorder of your immune system in which your body's immune system attacks itself (autoimmune disorder)

• Diagnosed with cystic fibrosis

• Have had sinus surgery in the past

• Are scheduled to have a procedure known as nasal septal reconstruction, without additional sinus surgery

Related Conditions & MeSH terms

• Chronic Disease
• Chronic Rhinosinusitis (Diagnosis)
• Sinusitis

Intervention

Procedure:
• Debridement
Debridement or cleaning of the sinuses post-operatively has been described as a regular post-surgery procedure .

Locations

Country	Name	City	State
Canada	E.N.T Clinic, St. Paul's Hospital	Vancouver	British Columbia

Sponsors (1)

Lead Sponsor	Collaborator
St. Paul's Hospital, Canada

Country where clinical trial is conducted

Canada, 

References & Publications (16)

Alsaffar H, Sowerby L, Rotenberg BW. Postoperative nasal debridement after endoscopic sinus surgery: a randomized controlled trial. Ann Otol Rhinol Laryngol. 2013 Oct;122(10):642-7. — View Citation

Bachert C, Pawankar R, Zhang L, Bunnag C, Fokkens WJ, Hamilos DL, Jirapongsananuruk O, Kern R, Meltzer EO, Mullol J, Naclerio R, Pilan R, Rhee CS, Suzaki H, Voegels R, Blaiss M. ICON: chronic rhinosinusitis. World Allergy Organ J. 2014 Oct 27;7(1):25. doi: 10.1186/1939-4551-7-25. eCollection 2014. — View Citation

Bednarski KA, Kuhn FA. Stents and drug-eluting stents. Otolaryngol Clin North Am. 2009 Oct;42(5):857-66, x. doi: 10.1016/j.otc.2009.07.001. Review. — View Citation

Bugten V, Nordgård S, Steinsvåg S. Long-term effects of postoperative measures after sinus surgery. Eur Arch Otorhinolaryngol. 2008 May;265(5):531-7. Epub 2007 Oct 25. — View Citation

Bugten V, Nordgård S, Steinsvåg S. The effects of debridement after endoscopic sinus surgery. Laryngoscope. 2006 Nov;116(11):2037-43. — View Citation

Catalano PJ, Roffman EJ. Evaluation of middle meatal stenting after minimally invasive sinus techniques (MIST). Otolaryngol Head Neck Surg. 2003 Jun;128(6):875-81. — View Citation

Fernandes SV. Postoperative care in functional endoscopic sinus surgery? Laryngoscope. 1999 Jun;109(6):945-8. — View Citation

Green R, Banigo A, Hathorn I. Postoperative nasal debridement following functional endoscopic sinus surgery, a systematic review of the literature. Clin Otolaryngol. 2015 Feb;40(1):2-8. doi: 10.1111/coa.12330. Review. — View Citation

Jorissen M. Postoperative care following endoscopic sinus surgery. Rhinology. 2004 Sep;42(3):114-20. — View Citation

Kennedy DW. Prognostic factors, outcomes and staging in ethmoid sinus surgery. Laryngoscope. 1992 Dec;102(12 Pt 2 Suppl 57):1-18. — View Citation

Lee JY, Byun JY. Relationship between the frequency of postoperative debridement and patient discomfort, healing period, surgical outcomes, and compliance after endoscopic sinus surgery. Laryngoscope. 2008 Oct;118(10):1868-72. doi: 10.1097/MLG.0b013e31817f93d3. — View Citation

Lund VJ, MacKay IS. Outcome assessment of endoscopic sinus surgery. J R Soc Med. 1994 Feb;87(2):70-2. — View Citation

Miller RS, Steward DL, Tami TA, Sillars MJ, Seiden AM, Shete M, Paskowski C, Welge J. The clinical effects of hyaluronic acid ester nasal dressing (Merogel) on intranasal wound healing after functional endoscopic sinus surgery. Otolaryngol Head Neck Surg. 2003 Jun;128(6):862-9. — View Citation

Nilssen EL, Wardrop P, El-Hakim H, White PS, Gardiner Q, Ogston S. A randomized control trial of post-operative care following endoscopic sinus surgery: debridement versus no debridement. J Laryngol Otol. 2002 Feb;116(2):108-11. — View Citation

Saafan ME, Ragab SM, Albirmawy OA, Elsherif HS. Powered versus conventional endoscopic sinus surgery instruments in management of sinonasal polyposis. Eur Arch Otorhinolaryngol. 2013 Jan;270(1):149-55. doi: 10.1007/s00405-012-1969-8. Epub 2012 Apr 10. — View Citation

Stammberger H. Endoscopic endonasal surgery--concepts in treatment of recurring rhinosinusitis. Part I. Anatomic and pathophysiologic considerations. Otolaryngol Head Neck Surg. 1986 Feb;94(2):143-7. — View Citation

* Note: There are 16 references in all — Click here to view all references

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Change in Postoperative Synechiae	The existence of postoperative synechiae will be considered as a categorical, dichotomous outcome variable (presence or absence).	Day 30, 60, 90, and 180 follow-up visits.
Secondary	Sinonasal Outcomes Test - 22 (SNOT-22)	The SNOT-22 is a sinus-specific questionnaire that evaluates subjective symptoms for patients suffering from chronic rhinosinusitis.; SNOT-22 is scored out of 110 (22 questions, up to 5-points each) has demonstrated internal consistency, reliability, discriminate and concurrent validity and responsiveness to change. Responses will be summated and considered as a continuous, numerical variable.	Day 30, 60, 90, and 180 follow-up visits.
Secondary	Philpott-Javer (PJ) and Modified Lund-Kennedy (MLK) Endoscopic Staging System (ESS)	Sinonasal mucosal inflammation is an objective measure assessed endoscopically and graded on both the PJ and MLK ESS for CRS.	Day 30, 60, 90, and 180 follow-up visits.
Secondary	Visual Analog Score (VAS) for pain and discomfort	The visual analog score describes subjective pain and discomfort levels experienced by the participant following the procedures in both arms of the study.	Day 6, 30, 60, 90, and 180 follow-up visits.