NCT03246477

Brief Summary

Background Maxillomandibular advancement surgery (MMA) has demonstrated high success rates, improving both the apnea-hypopnea index and associated patient' quality of life (QOL), in patients diagnosed with obstructive sleep apnea syndrome (OSAS). However, clinical relapse has been described in the target population, especially when associated with significant weight gain. Literature reporting the long-term impact of MMA for OSAS is lacking. The surgeons of the Division of Maxillofacial Surgery already started to perform this type of surgery in 1995. Objectives The investigators aim to evaluate the long-term (minimum 15 years post-surgery) biologic and QOL impact of MMA in patients with OSAS. The biologic impact refers to the stability of hard and soft tissues and polysomnographic results. Study design Retrospective study Both pre- en postoperative clinical imaging, polysomnography and quality of life questionnaires will be retrieved from all patients that were surgically treated with an MMA by one surgeon (CDC) between 01/11/1995 and 01/12/1999. Conclusion Short-term data have shown high success rates for MMA in OSAS patients. However, long-term data are lacking. This retrospective study might provide us with more information about the incidence of clinical relapse fifteen to twenty years after surgery.

Trial Health

100
On Track

Trial Health Score

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

Enrollment
12

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Sep 2016

Status
completed

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 1, 2016

Completed
5 months until next milestone

First Submitted

Initial submission to the registry

February 10, 2017

Completed
6 months until next milestone

First Posted

Study publicly available on registry

August 11, 2017

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2017

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2017

Completed
Last Updated

February 15, 2019

Status Verified

February 1, 2019

Enrollment Period

1.3 years

First QC Date

February 10, 2017

Last Update Submit

February 13, 2019

Conditions

Keywords

maxillomandibular advancement osteotomylong-term resultsquality of lifepolysomnographic measurementsskeletal stability

Outcome Measures

Primary Outcomes (2)

  • apnea-hypopnea index, as determined through polysomnography

    minimum 15 years postoperative

  • oxygen saturation values, as determined through polysomnography

    minimum 15 years postoperative

Secondary Outcomes (12)

  • evolution of patient quality of life, through Epworth Sleepiness Scale

    preoperative

  • Stability of hard and soft head and neck tissue, according to manual anthropometry

    min 15 years postoperative

  • Evolution of apnea-hypopnea index, as determined through polysomnography

    preoperative

  • Evolution of apnea-hypopnea index, as determined through polysomnography

    immediately postoperative

  • oxygen saturation values, as determined through polysomnography

    preoperative

  • +7 more secondary outcomes

Eligibility Criteria

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

All patients (n=10/12) with a clinically confirmed diagnosis of OSAS, that were treated with an MMA between 01/11/1995 and 01/12/1999 by one surgeon (CDC)

You may qualify if:

  • clinically confirmed diagnosis of OSAS
  • treated with an MMA between 01/11/1995 and 01/12/1999 by one surgeon (CDC)

You may not qualify if:

  • not following abovementioned criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Sleep Apnea, Obstructive

Condition Hierarchy (Ancestors)

Sleep Apnea SyndromesApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System Diseases

Study Officials

  • Nathalie Neyt

    AZ Sint-Lucas Brugge

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
maxillofacial surgeon, principal investigator

Study Record Dates

First Submitted

February 10, 2017

First Posted

August 11, 2017

Study Start

September 1, 2016

Primary Completion

December 31, 2017

Study Completion

December 31, 2017

Last Updated

February 15, 2019

Record last verified: 2019-02

Data Sharing

IPD Sharing
Will not share