NCT02829515

Brief Summary

For the purpose of quality assurance, the Swedish Association for Otorhinolaryngology and Head and Neck surgery has developed several national registers concerning ear, nose and throat care. One of these is the National Tonsil Surgery Registry in Sweden (NTSRS). In NTSRS patients undergoing tonsil surgery for benign indications are included. Data regarding indication, surgical methods and techniques as well as patient reported outcomes measures are collected. The register is designed to facilitate description of clinical activities in a unit and help identify the need of clinical improvement programs. By compiling national data, the register can be used to describe clinical practice in a large national cohort.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
11,000

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started May 2009

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
unknown

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

Study Start

First participant enrolled

May 1, 2009

Completed
2.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2012

Completed
4.4 years until next milestone

First Submitted

Initial submission to the registry

July 8, 2016

Completed
4 days until next milestone

First Posted

Study publicly available on registry

July 12, 2016

Completed
3.4 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2019

Completed
Last Updated

March 30, 2018

Status Verified

March 1, 2018

Enrollment Period

2.8 years

First QC Date

July 8, 2016

Last Update Submit

March 28, 2018

Conditions

TonsillectomyProspective StudiesRegistriesPostoperative Complications

Outcome Measures

Primary Outcomes (1)

  • Patient reported symptom relief

    The final questionnaire that is sent to the second patient/caregiver questionnaire asks for perceived symptom relief after 180 days by choosing one alternative of four statements: My symptoms are gone / My symptoms are almost gone / My symptoms have not disappeared/ My symptoms have worsened.

    6 months postoperative report

Secondary Outcomes (1)

  • Patient reported postoperative bleeding

    30 days postoperative report

Interventions

tonsil surgery with or without concomitant adenoidectomyPROCEDURE

tonsillectomy, tonsillectomy with adenoidectomy, tonsillotomy, tonsillectomy with adenoidectomy

Eligibility Criteria

Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

All patients undergoing benign tonsil surgery in Sweden

You may qualify if:

  • All patients undergoing benign tonsil surgery in Sweden

You may not qualify if:

  • All patients operated with an C- or D0-48 ICD 10 code, indicating not benign diagnoses

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Tonsil Surgery Register in Sweden

Gothenburg, 41345, Sweden

RECRUITING

Related Publications (16)

  • Odhagen E, Sunnergren O, Hemlin C, Hessen Soderman AC, Ericsson E, Stalfors J. Risk of reoperation after tonsillotomy versus tonsillectomy: a population-based cohort study. Eur Arch Otorhinolaryngol. 2016 Oct;273(10):3263-8. doi: 10.1007/s00405-015-3871-7. Epub 2016 Jan 4.

    PMID: 26728487BACKGROUND

  • Gerhardsson H, Stalfors J, Odhagen E, Sunnergren O. Pediatric adenoid surgery in Sweden 2004-2013: Incidence, indications and concomitant surgical procedures. Int J Pediatr Otorhinolaryngol. 2016 Aug;87:61-6. doi: 10.1016/j.ijporl.2016.05.020. Epub 2016 May 20.

    PMID: 27368444BACKGROUND

  • Ostvoll E, Sunnergren O, Ericsson E, Hemlin C, Hultcrantz E, Odhagen E, Stalfors J. Mortality after tonsil surgery, a population study, covering eight years and 82,527 operations in Sweden. Eur Arch Otorhinolaryngol. 2015 Mar;272(3):737-43. doi: 10.1007/s00405-014-3312-z. Epub 2014 Oct 2.

    PMID: 25274044BACKGROUND

  • Ostvoll E, Sunnergren O, Stalfors J. Increasing Readmission Rates for Hemorrhage after Tonsil Surgery: A Longitudinal (26 Years) National Study. Otolaryngol Head Neck Surg. 2018 Jan;158(1):167-176. doi: 10.1177/0194599817725680. Epub 2017 Aug 22.

    PMID: 28828912BACKGROUND

  • Sunnergren O, Odhagen E, Stalfors J. Incidence of second surgery following pediatric adenotonsillar surgery: a population-based cohort study. Eur Arch Otorhinolaryngol. 2017 Jul;274(7):2945-2951. doi: 10.1007/s00405-017-4543-6. Epub 2017 Mar 23.

    PMID: 28337533BACKGROUND

  • Borgstrom A, Nerfeldt P, Friberg D, Sunnergren O, Stalfors J. Trends and changes in paediatric tonsil surgery in Sweden 1987-2013: a population-based cohort study. BMJ Open. 2017 Jan 13;7(1):e013346. doi: 10.1136/bmjopen-2016-013346.

    PMID: 28087550BACKGROUND

  • Elinder K, Soderman AC, Stalfors J, Knutsson J. Factors influencing morbidity after paediatric tonsillectomy: a study of 18,712 patients in the National Tonsil Surgery Register in Sweden. Eur Arch Otorhinolaryngol. 2016 Aug;273(8):2249-56. doi: 10.1007/s00405-016-4001-x. Epub 2016 Mar 28.

    PMID: 27020269RESULT

  • Soderman AC, Odhagen E, Ericsson E, Hemlin C, Hultcrantz E, Sunnergren O, Stalfors J. Post-tonsillectomy haemorrhage rates are related to technique for dissection and for haemostasis. An analysis of 15734 patients in the National Tonsil Surgery Register in Sweden. Clin Otolaryngol. 2015 Jun;40(3):248-54. doi: 10.1111/coa.12361.

    PMID: 25515059RESULT

  • Sunnergren O, Hemlin C, Ericsson E, Hessen-Soderman AC, Hultcrantz E, Odhagen E, Stalfors J. Radiofrequency tonsillotomy in Sweden 2009-2012. Eur Arch Otorhinolaryngol. 2014 Jun;271(6):1823-7. doi: 10.1007/s00405-013-2867-4. Epub 2013 Dec 24.

    PMID: 24366615RESULT

  • Hultcrantz E, Ericsson E, Hemlin C, Hessen-Soderman AC, Roos K, Sunnergren O, Stalfors J. Paradigm shift in Sweden from tonsillectomy to tonsillotomy for children with upper airway obstructive symptoms due to tonsillar hypertrophy. Eur Arch Otorhinolaryngol. 2013 Sep;270(9):2531-6. doi: 10.1007/s00405-013-2374-7. Epub 2013 Feb 6.

    PMID: 23385384RESULT

  • Stalfors J, Ericsson E, Hemlin C, Hultcrantz E, Mansson I, Roos K, Hessen Soderman AC. Tonsil surgery efficiently relieves symptoms: analysis of 54 696 patients in the National Tonsil Surgery Register in Sweden. Acta Otolaryngol. 2012 May;132(5):533-9. doi: 10.3109/00016489.2011.644252. Epub 2012 Jan 11.

    PMID: 22235871RESULT

  • Hessen Soderman AC, Ericsson E, Hemlin C, Hultcrantz E, Mansson I, Roos K, Stalfors J. Reduced risk of primary postoperative hemorrhage after tonsil surgery in Sweden: results from the National Tonsil Surgery Register in Sweden covering more than 10 years and 54,696 operations. Laryngoscope. 2011 Nov;121(11):2322-6. doi: 10.1002/lary.22179. Epub 2011 Oct 12.

    PMID: 21994191RESULT

  • Odhagen E, Sunnergren O, Soderman AH, Thor J, Stalfors J. Reducing post-tonsillectomy haemorrhage rates through a quality improvement project using a Swedish National quality register: a case study. Eur Arch Otorhinolaryngol. 2018 Jun;275(6):1631-1639. doi: 10.1007/s00405-018-4942-3. Epub 2018 Mar 24.

    PMID: 29574597RESULT

  • Alm F, Stalfors J, Nerfeldt P, Ericsson E. Patient reported pain-related outcome measures after tonsil surgery: an analysis of 32,225 children from the National Tonsil Surgery Register in Sweden 2009-2016. Eur Arch Otorhinolaryngol. 2017 Oct;274(10):3711-3722. doi: 10.1007/s00405-017-4679-4. Epub 2017 Aug 16.

    PMID: 28815308RESULT

  • Hallenstal N, Sunnergren O, Ericsson E, Hemlin C, Hessen Soderman AC, Nerfeldt P, Odhagen E, Ryding M, Stalfors J. Tonsil surgery in Sweden 2013-2015. Indications, surgical methods and patient-reported outcomes from the National Tonsil Surgery Register. Acta Otolaryngol. 2017 Oct;137(10):1096-1103. doi: 10.1080/00016489.2017.1327122. Epub 2017 Jun 9.

    PMID: 28598766RESULT

  • Gudnadottir G, Tennvall GR, Stalfors J, Hellgren J. Indirect costs related to caregivers' absence from work after paediatric tonsil surgery. Eur Arch Otorhinolaryngol. 2017 Jun;274(6):2629-2636. doi: 10.1007/s00405-017-4526-7. Epub 2017 Mar 14.

    PMID: 28289832RESULT

MeSH Terms

Conditions

Postoperative Complications

Condition Hierarchy (Ancestors)

Pathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Joacim Stalfors, MD, PhD

    Sahlgrenska Academy

    STUDY DIRECTOR

Central Study Contacts

Joacim Stalfors, MD, PhD

CONTACT

+46736421613joacim@stalfors.se

Lisa Hellgård

CONTACT

Lisa.Hellgard@registercentrum.se

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Target Duration
6 Months
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Register Director

Study Record Dates

First Submitted

July 8, 2016

First Posted

July 12, 2016

Study Start

May 1, 2009

Primary Completion

March 1, 2012

Study Completion

December 1, 2019

Last Updated

March 30, 2018

Record last verified: 2018-03

Data Sharing

IPD Sharing
Will share

All registered data i available online for registrating units.

More information

Locations

SE(1)