NCT04543708

Brief Summary

The diagnosis and treatment of tonsillar abscess are very physician-dependent, as sufficient prospective medical literature is lacking to choose the most efficient regimen. The proposed study aims to assess the therapeutic efficacy of tonsillectomy compared to drainage under local anesthesia. This is a prospective, randomized clinical trial in adults in a tertiary care center in Geneva (Switzerland).

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
42

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Oct 2020

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
terminated

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 2, 2020

Completed
8 days until next milestone

First Posted

Study publicly available on registry

September 10, 2020

Completed
21 days until next milestone

Study Start

First participant enrolled

October 1, 2020

Completed
3.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 22, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 22, 2024

Completed
Last Updated

May 1, 2026

Status Verified

April 1, 2026

Enrollment Period

3.4 years

First QC Date

September 2, 2020

Last Update Submit

April 27, 2026

Conditions

Keywords

TonsilAbscessTonsillectomyLocal anesthesiaCT-scan

Outcome Measures

Primary Outcomes (1)

  • Proportion of treatment success (%)

    Disappearance of fever if any + decrease in leukocytosis and CRP value + no sign of recollection nor cervical extension of the infection.

    3 days

Secondary Outcomes (1)

  • Recurrence rate (%)

    3 and 12 months

Study Arms (2)

Incision drainage

ACTIVE COMPARATOR

Adult with clinical suspicion of tonsillar abscess who underwent a CT-scan confirming the abscess will be randomly assigned to one arm or the other. "Incision drainage" arm will benefit from drainage of the tonsillar abscess under local anesthesia and then be hospitalized for intravenous antibiotics. If the incision drainage fails, they will get a tonsillectomy under general anesthesia.

Procedure: Incision drainage

Tonsillectomy

ACTIVE COMPARATOR

Adult with clinical suspicion of tonsillar abscess who underwent a CT-scan confirming the abscess will be randomly assigned to one arm or the other. "Tonsillectomy" arm will benefit from tonsillectomy under general anesthesia and then be hospitalized for intravenous antibiotics.

Procedure: Tonsillectomy

Interventions

Oropharyngeal pre-anesthesia is performed with 10% xylocaine spray, then submucosal anesthesia of the anterior pillar of the tonsil is performed with 2 ml of Rapidocaine or Rapidocaine 1 or 2% adrenaline. A scalpel incision is made with the search for the abscess pocket with a crile. If pus is present, a NaCl / Betadine rinse is performed. A syringe puncture can help locate the abscess if needed. The duration is approximately 15 minutes. If no purulent pouch is found, the procedure is completed with tonsillectomy under general anesthesia.

Incision drainage
TonsillectomyPROCEDURE

Under general anesthesia, in dorsal decubitus, an autostatic mouth opener is placed, an incision of the anterior pillar of the tonsil allows the opening of the capsular space, along which the entire tonsil is dissected until complete extraction, hemostasis is performed, then the patient is awakened. The duration is approximately 30 minutes.

Tonsillectomy

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients ≥18 years of age with clinical suspicion of unilateral tonsillar abscess without signs of "extra-capsular" complication.
  • Obtaining informed consent.

You may not qualify if:

  • Contraindications to injected CT or drainage in local anesthesia (allergy to iodinated contrast product, allergy to local anesthetics, phobia of needles, major trismus).
  • Parapharyngeal or retropharyngeal abscess, or associated venous thrombosis found on CT.
  • Imminent threat to the upper respiratory tract (glottic edema, acute dyspnea).
  • Inability to understand the different procedures (dementia, impossible communication, substance abuse).
  • Anamnestic pregnancy.
  • Antiaggregant or anticoagulant treatment.
  • Treatment of corticosteroids during the management of emergencies and in hospital.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University Hospitalas Geneva

Geneva, Canton of Geneva, 1211, Switzerland

Location

Related Publications (19)

  • Powell EL, Powell J, Samuel JR, Wilson JA. A review of the pathogenesis of adult peritonsillar abscess: time for a re-evaluation. J Antimicrob Chemother. 2013 Sep;68(9):1941-50. doi: 10.1093/jac/dkt128. Epub 2013 Apr 23.

    PMID: 23612569BACKGROUND
  • Windfuhr JP, Toepfner N, Steffen G, Waldfahrer F, Berner R. Clinical practice guideline: tonsillitis II. Surgical management. Eur Arch Otorhinolaryngol. 2016 Apr;273(4):989-1009. doi: 10.1007/s00405-016-3904-x. Epub 2016 Feb 16.

    PMID: 26882912BACKGROUND
  • Albertz N, Nazar G. Peritonsillar abscess: treatment with immediate tonsillectomy - 10 years of experience. Acta Otolaryngol. 2012 Oct;132(10):1102-7. doi: 10.3109/00016489.2012.684399. Epub 2012 Jun 18.

    PMID: 22708633BACKGROUND
  • Lehnerdt G, Senska K, Fischer M, Jahnke K. [Smoking promotes the formation of peritonsillar abscesses]. Laryngorhinootologie. 2005 Sep;84(9):676-9. doi: 10.1055/s-2005-870289. German.

    PMID: 16142623BACKGROUND
  • Powell J, Powell EL, Conroy K, Hopkins C, Moor JW, Wilson JA. Throat-related quality of life in peritonsillar abscess sufferers: application of the adult tonsil outcome inventory. J Laryngol Otol. 2013 Dec;127(12):1190-3. doi: 10.1017/S0022215113003071. Epub 2013 Nov 20.

    PMID: 24252628BACKGROUND
  • Grant MC, Raggio B, Barton B, Guarisco JL. Establishing the Need for an Evidence-Based Treatment Algorithm for Peritonsillar Abscess in Children. Clin Pediatr (Phila). 2018 Oct;57(12):1385-1390. doi: 10.1177/0009922818778048. Epub 2018 May 29.

    PMID: 29808740BACKGROUND
  • Scott PM, Loftus WK, Kew J, Ahuja A, Yue V, van Hasselt CA. Diagnosis of peritonsillar infections: a prospective study of ultrasound, computerized tomography and clinical diagnosis. J Laryngol Otol. 1999 Mar;113(3):229-32. doi: 10.1017/s0022215100143634.

    PMID: 10435129BACKGROUND
  • Salihoglu M, Eroglu M, Yildirim AO, Cakmak A, Hardal U, Kara K. Transoral ultrasonography in the diagnosis and treatment of peritonsillar abscess. Clin Imaging. 2013 May-Jun;37(3):465-7. doi: 10.1016/j.clinimag.2012.09.023. Epub 2012 Oct 25.

    PMID: 23102927BACKGROUND
  • Carratola MC, Frisenda G, Gastanaduy M, Guarisco JL. Association of Computed Tomography With Treatment and Timing of Care in Adult Patients With Peritonsillar Abscess. Ochsner J. 2019 Winter;19(4):309-313. doi: 10.31486/toj.18.0168.

    PMID: 31903053BACKGROUND
  • Patel KS, Ahmad S, O'Leary G, Michel M. The role of computed tomography in the management of peritonsillar abscess. Otolaryngol Head Neck Surg. 1992 Dec;107(6 Pt 1):727-32. doi: 10.1177/019459988910700603.1.

    PMID: 1470448BACKGROUND
  • Teschner M, Aljeraisi T, Giesemann A, Gotz F, Lenarz T, Kontorinis G. [The role of CT in the diagnosis of peritonsillar abscesses after Punctio Sicca]. Laryngorhinootologie. 2013 Jan;92(1):25-9. doi: 10.1055/s-0032-1327709. Epub 2012 Nov 19. German.

    PMID: 23165703BACKGROUND
  • Johnson RF, Stewart MG, Wright CC. An evidence-based review of the treatment of peritonsillar abscess. Otolaryngol Head Neck Surg. 2003 Mar;128(3):332-43. doi: 10.1067/mhn.2003.93.

    PMID: 12646835BACKGROUND
  • Powell J, Wilson JA. An evidence-based review of peritonsillar abscess. Clin Otolaryngol. 2012 Apr;37(2):136-45. doi: 10.1111/j.1749-4486.2012.02452.x.

    PMID: 22321140BACKGROUND
  • Hur K, Zhou S, Kysh L. Adjunct steroids in the treatment of peritonsillar abscess: A systematic review. Laryngoscope. 2018 Jan;128(1):72-77. doi: 10.1002/lary.26672. Epub 2017 May 31.

    PMID: 28561258BACKGROUND
  • Fagan JJ, Wormald PJ. Quinsy tonsillectomy or interval tonsillectomy--a prospective randomised trial. S Afr Med J. 1994 Oct;84(10):689-90.

    PMID: 7839259BACKGROUND
  • Chowdhury CR, Bricknell MC. The management of quinsy--a prospective study. J Laryngol Otol. 1992 Nov;106(11):986-8. doi: 10.1017/s002221510012153x.

    PMID: 1479277BACKGROUND
  • Yung AK, Cantrell RW. Quinsy tonsillectomy. Laryngoscope. 1976 Nov;86(11):1714-7. doi: 10.1288/00005537-197611000-00015.

    PMID: 1068337BACKGROUND
  • Clerc S, Soldati D. [Socioeconomic aspects in the therapy of peritonsillar absscess]. Schweiz Med Wochenschr. 2000;Suppl 125:17S-19S. French.

    PMID: 11141930BACKGROUND
  • Voruz F, Revol R, Mermod M, Senn P, Monnier Y, Dulguerov N. A randomized clinical trial of peritonsillar abscess treatment comparing drainage and tonsillectomy. Am J Otolaryngol. 2025 Nov-Dec;46(6):104745. doi: 10.1016/j.amjoto.2025.104745. Epub 2025 Oct 20.

MeSH Terms

Conditions

Abscess

Interventions

Tonsillectomy

Condition Hierarchy (Ancestors)

SuppurationInfectionsInflammationPathologic ProcessesPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Otorhinolaryngologic Surgical ProceduresSurgical Procedures, Operative

Study Officials

  • François Voruz, MD

    University Hospital, Geneva

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal investigator

Study Record Dates

First Submitted

September 2, 2020

First Posted

September 10, 2020

Study Start

October 1, 2020

Primary Completion

February 22, 2024

Study Completion

February 22, 2024

Last Updated

May 1, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will not share

Locations