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NeurectomyNCT05880134

Graft Reinforcement for Posterior Nasal Nerve Neurectomy in Allergic Rhinitis Surgeries

A study testing conventional posterior nerve neurectomy and cartilage graft reinforcement after posterior nerve neurectomy in people with Neurectomy, run by Kafrelsheikh University at 1 site in Egypt.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Rhinitis is defined clinically as having two or more symptoms of anterior or posterior rhinorrhea, sneezing, nasal blockage and/or itching of the nose during two or more consecutive days for more than 1 h on most days. Read more about this study

Who is it for?
Any age
Conditions the study is for
Neurectomy
What is being tested?
conventional posterior nerve neurectomy and cartilage graft reinforcement after posterior nerve neurectomy
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
150 participants
Where
1 siteEgypt
Study dates
12 Mar 2022to 30 Nov 2023
Phase
Interventional
Are there results?
None posted in the registry

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 Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Patients with allergic rhinitis
  • Patients fit for surgery.

Who cannot join

  • Coagulopathy, systemic diseases, and patients unfit for general anesthesia.

Trial locations and contacts

1 site in 1 country.

Egypt1 site
  • Kafrelsheikh university

    Kafr ash Shaykh, Egypt, 05555

Other trials in Egypt

About this study

Official title: Cartilage Graft Reinforcement for Posterior Nasal Nerve Neurectomy in Allergic Rhinitis Surgeries; Randomized Controlled Trial.

Rhinitis is defined clinically as having two or more symptoms of anterior or posterior rhinorrhea, sneezing, nasal blockage and/or itching of the nose during two or more consecutive days for more than 1 h on most days.

Allergic rhinitis is diagnosed when these symptoms are caused by allergen exposure leading to an IgE mediated reaction. The inflammatory mediators produced because of this IgE mediated reaction causes the classical symptoms of allergic rhinitis.

Read more

Nerve irritation causes sneezing and itching, the loss of mucosal integrity causes rhinorrhea, and the vascular engorgement leads to nasal blockage.

Based on the nasal symptoms the prevalence of allergic rhinitis in the Indian population is 20-30%.

Allergic rhinitis significantly affects the quality of life, it contributes to missed or unproductive time at school or work, disturbed sleep pattern and daytime somnolence.

The most popular and widely accepted treatment strategy for allergic rhinitis is pharmacotherapy, this includes antihistamines, leukotriene receptor antagonist and intranasal corticosteroids. These medical modalities are symptomatically effective in mild cases, with temporary relief and addressable adverse effects. Prolonged treatment with allergy immunotherapy causes a sustainable financial burden while remaining inaccessible at smaller towns.

Rhinorrhea is a frequent symptom reported amongst patients with allergic and vasomotor rhinitis. Most of these patients usually respond well to medical treatment.

Indications for surgical treatment are warranted only when medical treatment fails, or a patient wants a permanent solution.

In 1961, Golding-Wood first described vidian neurectomy for the treatment of allergic and vasomotor rhinitis. There was a high incidence of post-operative complications, such as disturbed lacrimal secretion and numbness of the cheek and gums. In 2007, Kikawada reported an endoscopic technique involving resection of the posterior nasal nerve near the sphenopalatine artery. With this technique, any intra-operative bleeding can be controlled under direct vision. In 2008, Ikeda et al. described submucosal reduction of the inferior turbinate and resection of the posterior nasal nerve. This resulted in significant improvements in nasal symptoms for patients with resistant chronic rhinitis (rhinorrhea).

The posterior nasal nerve is a peripheral branch of the sphenopalatine ganglion. It enters the nasal cavity through a separate foramen, 4-5 mm below the sphenopalatine foramen, after bifurcation of the nerve into the lacrimal nerve. The posterior superior nasal nerves innervate the superior and middle turbinates, and the superior and middle meatus.

Other parasympathetic nerve fibres of the nose branch off and joins the greater palatine nerve and enters the nasal cavity through the canaliculi in the perpendicular plate of the palatine bone as the posterior inferior nasal nerves. These nerves innervate the inferior turbinate and the inferior meatus.

Read the detailed description

Allergic rhinitis (AR) is a growing health problem all over the world. Around the world, more than 500million subjects complained of AR, and its prevalence had been increased during the last decades . AR affected approximately 113 million people in Europe and about 30 - 60 million in the United States. Poorly controlled symptoms of AR could lead to different comorbidities (e.g., impaired sleep with consequent daytime fatigue which affect overall patient's work or school achievement; all affect quality of life (QoL) with increased treatment costs). The ideal treatment strategy of AR includes complete avoidance of allergens, local corticosteroids, leukotriene receptor antagonists, Th2 cytokine suppressors and nasal antihistamines, therapy. However, these therapeutic interventions show limited effectiveness and high cost of long-term treatment . Allergic rhinitis resistant to drug therapy usually submitted to posterior nasal nerve resection. This surgical maneuver was originated from Vidian neurectomy, which markedly reduces hypersecretion and hypersensitivity by ablation of the Vidian nerve with a transantral approach. However, Vidian neurectomy is occasionally accompanied by permanent comorbidities [e.g., reduced lacrimation and development of upper lip numbness Posterior nasal neurectomy is a novel alternative technique in which neural bundles - under direct vision- are selectively cut or cauterized at the sphenopalatine foramen. This enables avoidance of surgical compilations especially reduced lacrimation. However, literature is not yet addressed its safety and efficacy and no final consensus or guidelines had been drawn. In addition, it is of most importance to present our clinical experience and share our results regarding such procedure with the scientific community. The aim of this work was to present our clinical experience with endoscopic posterior nasal neurectomy in persistent allergic rhinitis.

Surgical technique: This procedure had been completed under general anesthesia. A 00 or a 300 nasal endoscope with a diameter of 4 mm is used throughout the surgery. About 1 mL of 1:100,000 epinephrine was injected at the posterior end of the middle meatus. Opening of the maxillary sinus and identification of its ostium to take it as a guide to reach the sphenopalatin foramen. Then in the middle meatus, a curved incision, 1.5cm long, had been made, starting from the superior margin of the inferior nasal turbinate up to the horizontal part of the ground lamella of the middle turbinate. The dissected mucosal flap had been separated from the vertical plate of the palatine bone, and the flap had been folded backwards until exposure of the sphenopalatine notch and the superior margin of the vertical plate of the palatine bone. Then, at the level of sphenopalatine foramen, the neurovascular bundle had been identified, with inclusion of the posterior nasal nerve. The PNN had identified and sectioned from the sphenopalatine artery only in four cases. The rest of cases, the whole bundle had been sectioned including the artery there is no significant side effects between both maneuvers. To avoid postoperative bleeding, a sufficient coagulation had been applied and nasal packing was inserted for 2 days

Conditions
Neurectomy
Being tested
conventional posterior nerve neurectomy, cartilage graft reinforcement after posterior nerve neurectomy
Keywords
allergic rhinitis, neurectomy, cartilage
Medical subject headings
Rhinitis, Allergic

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • conventional posterior nerve neurectomyProcedure or surgery

    A vertical incision is made behind the posterior fontanelle. The posterior end of the posterior fontanelle is identified by palpation with an elevator. .

    The mucoperiosteum is raised gently using a Cottle elevator or a suction freer elevator, after making the initial incision. Care must be taken not to injure the sphenopalatine vessel during flap elevation.

    The peripheral part of the posterior nasal nerve can usually be identified just behind the incision, about 4-5 mm inferior to the sphenopalatine artery or crista ethmoidalis.

    I After identifying the nerve fibres, it is cauterised using monopolar suction cautery and cut using microscissors. It is essential to carry out this procedure on both sides for effective results.

  • cartilage graft reinforcement after posterior nerve neurectomyProcedure or surgery

    A vertical incision is made behind the posterior fontanelle. The posterior end of the posterior fontanelle is identified by palpation with an elevator. .

    The mucoperiosteum is raised gently using a Cottle elevator or a suction freer elevator, after making the initial incision. Care must be taken not to injure the sphenopalatine vessel during flap elevation.

    The peripheral part of the posterior nasal nerve can usually be identified just behind the incision, about 4-5 mm inferior to the sphenopalatine artery or crista ethmoidalis.

    I After identifying the nerve fibres, it is cauterised using monopolar suction cautery and cut using microscissors. It is essential to carry out this procedure on both sides for effective results.

    then harvest cartilage from nasal septum and refashion it around sphenopalatine bundle to prevent nerve re-innervation

    The mucoperiosteal flaps are repositioned . No nasal packing is required. Patients are discharged on the same day

Study groups in NCT05880134
Study groupRoleWhat they receive
conventional posterior nerve neurectomyActive comparatorA vertical incision is made behind the posterior fontanelle. The posterior end of the posterior fontanelle is identified by palpation with an elevator. . The mucoperiosteum is raised gently using a Cottle elevator or a suction freer elevator, after making the initial incision. Care must be taken not to injure the sphenopalatine vessel during flap elevation. The peripheral part of the posterior nasal nerve can usually be identified just behind the incision, about 4-5 mm inferior to the sphenopalatine artery or crista ethmoidalis. I After identifying the nerve fibres, it is cauterised using monopolar suction cautery and cut using microscissors. It is essential to carry out this procedure on both sides for effective results.
Receives: Procedure: conventional posterior nerve neurectomy
cartilage reinforcement after posterior nerve neurectomyActive comparatorA vertical incision is made behind the posterior fontanelle. The posterior end of the posterior fontanelle is identified by palpation with an elevator. . The mucoperiosteum is raised gently using a Cottle elevator or a suction freer elevator, after making the initial incision. Care must be taken not to injure the sphenopalatine vessel during flap elevation. The peripheral part of the posterior nasal nerve can usually be identified just behind the incision, about 4-5 mm inferior to the sphenopalatine artery or crista ethmoidalis. I After identifying the nerve fibres, it is cauterised using monopolar suction cautery and cut using microscissors. It is essential to carry out this procedure on both sides for effective results.
Receives: Procedure: cartilage graft reinforcement after posterior nerve neurectomy

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. 22-item Sino-Nasal Outcome Test (SNOT-22)

    each symptom is scored on a scale from 0 to 5 (0 = no problem, 1 = very mild problem, 2 = mild problem, 3 = moderate problem, 4 = severe problem and 5 = problem as bad as it can be).

    Measured: 6months after surgery

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted30 May 2023
  2. Study start12 Mar 2022
  3. Primary completion30 May 2023
  4. Study completion30 Nov 2023

Resources

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Outcomes assessor
Enrolment
150 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05880134
Sponsor's protocol ID
MKSU 51-2-13
Status last verified
Sep 2024
First submitted
16 Mar 2023
Last updated
19 Sep 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Brozek JL, Bousquet J, Baena-Cagnani CE, Bonini S, Canonica GW, Casale TB, van Wijk RG, Ohta K, Zuberbier T, Schunemann HJ; Global Allergy and Asthma European Network; Grading of Recommendations Assessment, Development and Evaluation Working Group. Allergic Rhinitis and its Impact on Asthma (ARIA) guidelines: 2010 revision. J Allergy Clin Immunol. 2010 Sep;126(3):466-76. doi: 10.1016/j.jaci.2010.06.047.

    PubMed 20816182
  • Kobayashi T, Hyodo M, Nakamura K, Komobuchi H, Honda N. Resection of peripheral branches of the posterior nasal nerve compared to conventional posterior neurectomy in severe allergic rhinitis. Auris Nasus Larynx. 2012 Dec;39(6):593-6. doi: 10.1016/j.anl.2011.11.006. Epub 2012 Feb 15.

    PubMed 22341334

Questions about this trial

What is this clinical trial studying?

A study testing conventional posterior nerve neurectomy and cartilage graft reinforcement after posterior nerve neurectomy in people with Neurectomy, run by Kafrelsheikh University at 1 site in Egypt.

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 1 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 19 Sep 2024. 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 Egypt. 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. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

22-item Sino-Nasal Outcome Test (SNOT-22) (time frame: 6months after surgery). 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 NCT05880134, which also lists 2 linked publications.

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 19 Sep 2024.

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