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Coblation and Traditional Adenoidectomy: A Comparative Study

COMPARATIVE ANALYSIS OF COLD CURETTAGE AND COBLATION ADENOIDECTOMY: SURGICAL AND POSTOPERATIVE OUTCOMES WITH 0° AND 70° ENDOSCOPIC TECHNIQUES

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07417007
Enrollment
128
Registered
2026-02-18
Start date
2024-08-01
Completion date
2025-10-01
Last updated
2026-02-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Endoscopic Coblation Adenoidectomy

Keywords

Adenoidectomy; Coblation; Cold curettage; Pediatric otolaryngology; Residual adenoid tissue; Postoperative pain; Halitosis; Intraoperative blood loss

Brief summary

Adenoidectomy is a common pediatric otolaryngologic procedure. While cold curettage remains widely practiced, endoscopic coblation has been developed to enhance precision, minimize intraoperative complications, and reduce residual tissue. This study compared outcomes of conventional cold curettage adenoidectomy and coblation-assisted adenoidectomy in pediatric patients.

Detailed description

A total of 128 pediatric patients aged 3-11 years who underwent adenoidectomy between August 2024 and August 2025 was prospectively evaluated with a follow-up duration of 6-12 months. (Table 1) Of these, 64 underwent adenoidectomy and/or myringotomy with ventilation tube insertion using the conventional cold curettage method, while the remaining 64 underwent the same procedures using the endoscopic coblation technique with 0° or 70° endoscopes. All patients had been diagnosed with adenoid hypertrophy and were unresponsive to medical treatment. Indications for surgery included nasal obstruction and associated symptoms such as snoring, apnea, mouth breathing during sleep, recurrent otitis media, and hearing loss due to serous otitis media. Exclusion criteria included patients who underwent concurrent tonsillectomy, dental procedures, or nasal surgeries such as septoplasty and/or turbinate reduction. Patients with chronic neurological disorders or cleft palate were also excluded. Informed consent was obtained from all participants prior to inclusion in the study. All patients underwent a detailed anamnesis and clinical examination. Following the application of a nasal decongestant spray, nasal endoscopy was performed, and the size and position of the adenoid tissue were scored from 1 to 4 using the McMurray and Clemens scoring system.4 In patients who were uncooperative or for whom endoscopic examination could not be performed, lateral nasopharyngeal radiographs were taken to allow for grading. During the operation, the size and extent of the adenoid tissue were confirmed transnasally or transorally using 0° or 70° rigid endoscopes.

Interventions

PROCEDURECold Curettage Adenoidectomy

After achieving adequate exposure under general anesthesia using a Boyle-Davis mouth gag, the soft palate and adenoid tissue were manually palpated, and curettage was performed using a suitably sized adenotome. Residual tissue areas suspected upon digital palpation and laryngeal mirror examination were further curetted using a smaller adenotome.

PROCEDURECoblation-Assisted Adenoidectomy

The nasopharynx and choanae were fully visualized using a 2.7 mm 0° pediatric transnasal endoscope and a 70° 4 mm transoral endoscope, then adenoidectomy was completed using a coblation technique. The procedure was performed using the Coblator II cold radiofrequency coblation device equipped with the PROcise XP plasma rod system, which can be shaped to reach all areas of the adenoid tissue (especially the upper part of the nasopharynx and the opening to the eustachian tubes) and is designed for soft tissue ablation and dissection.

Sponsors

Medipol University
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Two different surgeries; Conventional cold curettage adenoidectomy Coblation-assisted adenoidectomy

Eligibility

Sex/Gender
ALL
Age
3 Years to 11 Years
Healthy volunteers
No

Inclusion criteria

Adenoid hypertrophy and were unresponsive to medical treatment. Indications for surgery included nasal obstruction and associated symptoms such as snoring, apnea, mouth breathing during sleep, recurrent otitis media, and hearing loss due to serous otitis media. \-

Design outcomes

Primary

MeasureTime frameDescription
Residual Adenoid Tissue RateDuring the follow-up assessments at 1, 6, and 12 months postoperativelyPresence of residual adenoid tissue evaluated postoperatively.

Secondary

MeasureTime frameDescription
Operative TimeDuring surgeryDuration of the surgical procedure.
Intraoperative ComplicationsDuring SurgeryOccurrence of intraoperative complications such as bleeding or mucosal injury.
Intraoperative Blood LossDuring SurgeryThe total blood loss was calculated by subtracting the amount of saline used from the total fluid volume in the suction canister and adding the estimated amount from the gauze.
Postoperative PainPost operative 24 hours and at the 72nd hourPostoperative pain was assessed using a Visual Analog Scale (VAS), ranging from 0 (no pain) to 10 (worst pain ever experienced). Parents were asked to rate their child's pain at the first 24 hours and at the 72nd hour based on their child's behavior such as crying and discomfort
HalitosisPostoperative two weeksPostoperative halitosis was assessed based on parental observation. Parents were instructed to approach their child from a distance of approximately 10 cm and to record the presence or absence of unpleasant oral odor

Countries

Turkey (Türkiye)

Contacts

PRINCIPAL_INVESTIGATORLÜTFÜ ŞENELDİR, Associate Professor

Department of Otolaryngology Head and Neck Surgery, Faculty of Medicine, İstanbul Medipol University.

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 24, 2026