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FrailtyPOOFNCT04700891

Correlation of Preoperative Olfactory Identification Function With Frailty and Postoperative Complications and Mortality

A study testing Olfactory identification test, Edmonton Frail Scale and Handgrip strength in people with Frailty and Perioperative/Postoperative Complications, run by Cliniques universitaires Saint-Luc- Université Catholique de Louvain at 1 site in Belgium.

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

The aim of this research project is to evaluate whether olfactory identification impairment is a reliable predictor of preoperative frailty and of postoperative complications and mortality in a population of older patients scheduled for elective surgery. 1. Read more about this study

Who is it for?
Ages 65 years and older
What is being tested?
Olfactory identification test, Edmonton Frail Scale and Handgrip strength
Could I receive a placebo?
No, everyone receives an active treatment
How many people
167 participants
Where
1 siteBelgium
Study dates
27 Jul 2020to 1 Feb 2022
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 65 years and older
  • All sexes
  • No healthy volunteers
  • Older adult

Who may be able to join

  • Scheduled for elective surgery (covering general, gynecologic, urologic, orthopedic, plastic, head and neck, spine neurosurgery)

Who cannot join

  • Day case surgery
  • History of neurological or psychiatric disorder
  • History of severe head trauma
  • History of olfactory trouble or chronic rhinosinusitis or sinus surgery
  • History of suspected or diagnosed COVID-19

Trial locations and contacts

1 site in 1 country.

Belgium1 site

  • Cliniques universitaires Saint-Luc

    Brussels, 1200

Other trials in Belgium

About this study

Official title: Correlation of Preoperative Olfactory Identification Function With Preoperative Frailty and With Postoperative Complications and Mortality Following Elective Surgery

The aim of this research project is to evaluate whether olfactory identification impairment is a reliable predictor of preoperative frailty and of postoperative complications and mortality in a population of older patients scheduled for elective surgery.

  1. The investigators will measure preoperative olfactory identification function and evaluate whether olfactory impairment predicts frailty, using the Edmonton Frail Scale and handgrip strength.
  2. The investigators will analyze whether preoperative olfactory impairment predicts postoperative complications and mortality.
Read the detailed description

Olfactory impairment increases with age, affecting more than 50% of the population aged between 65 and 80 years old. Recently, many studies have demonstrated a strong association between olfactory impairment and overall mortality risk. At the moment, the underlying physiopathology linking olfactory impairment to mortality remains unknown and only putative mechanisms are suggested.

Among them, accelerated physiological brain aging seems to be involved, making olfactory decline a possible marker of frailty. To date, only a few studies (mostly using subjective olfactory assessment) investigated the potential relationship between olfactory impairment and frailty. Surgery, and more broadly the perioperative period, remains a major source of morbidity and mortality. Meanwhile, the average age of the surgical population continues to rise, making preoperative risk assessment an essential step in order to detect the most vulnerable patients. Yet, it is well-known that frailty is associated with worse perioperative outcome. The first objective of this research project is thus to evaluate olfactory identification function of preoperative older surgical patients in light of an assessment of their frailty status. Frailty will be tested with the Edmonton Frail Scale and handgrip strength, which are both validated tools. The second objective is to correlate postoperative morbidity and mortality with preoperative olfactory function. Hopefully, this research project will address the misunderstood link between olfactory impairment and mortality, focusing on frailty assessment and using surgery as a heavy stressor for the older patient.

Being tested
Olfactory identification test, Edmonton Frail Scale, Handgrip strength
Medical subject headings
Frailty, Postoperative Complications

What participants receive

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

  • Olfactory identification testDiagnostic test

    Burghart Sniffin' Sticks "Screening 12 Test" Olfactory function will be evaluated through the Sniffin' Sticks test which is a validated psychophysical testing method. Sniffin' Sticks test is based on pen-like odor dispensing devices that will be presented to the patients. The short version of this test will be used and will consist solely of a test of odor identification function.

  • Edmonton Frail ScaleDiagnostic test

    The Edmonton Frail Scale (EFS) involves nine domains of frailty : functional performance, cognitive function, general health, functional independence, social support, used medications, nutrition, mood and continence. It has been validated with respect to comprehensive geriatric assessment and to other screening tools related to frail state. EFS test is considered most appropriate for use in routine preoperative screening and only requires 5 minutes.

  • Handgrip strengthDiagnostic test

    Handgrip strength is a simple and reliable measurement technique for the assessment of maximal voluntary hand force. Handgrip strength is used as a reflect of nutritional status and muscle mass, physical function and health status. Measurement will be realized using a digital handgrip dynamometer. Patients will be asked to grip the dynamometer with the second finger node at 90° angle to the handle and to grab the handle as strongly as they can. Maximal grip strength will be checked with the forearm away from the body in standing position.

Study groups in NCT04700891
Study groupRoleWhat they receive
Patients scheduled for elective surgery aged 65 and +ExperimentalNot described
Receives: Diagnostic Test: Olfactory identification test; Diagnostic Test: Edmonton Frail Scale; Diagnostic Test: Handgrip strength

What is being measured

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

  1. Prevalence of frailty

    Analysis of the prevalence of frailty (assessed by the Edmonton Frail Scale and handgrip strength) according to preoperative olfactory identification function

    Measured: The day before surgery (preoperative period)

  2. Incidence of postoperative complications and mortality

    Analysis of the incidence of postoperative complications and mortality according to preoperative olfactory identification function

    Measured: Up to 1 year postoperatively

Timeline

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

  1. First posted8 Jan 2021
  2. Study start27 Jul 2020
  3. Primary completion1 Feb 2021
  4. Study completion1 Feb 2022

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
Screening
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
167 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04700891
Sponsor's protocol ID
2020/22JAN/050
Acronym
POOF
Status last verified
Feb 2022
First submitted
18 Dec 2020
Last updated
24 Feb 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Pinto JM, Wroblewski KE, Kern DW, Schumm LP, McClintock MK. Olfactory dysfunction predicts 5-year mortality in older adults. PLoS One. 2014 Oct 1;9(10):e107541. doi: 10.1371/journal.pone.0107541. eCollection 2014.

    PubMed 25271633

  • Schubert CR, Fischer ME, Pinto AA, Klein BEK, Klein R, Tweed TS, Cruickshanks KJ. Sensory Impairments and Risk of Mortality in Older Adults. J Gerontol A Biol Sci Med Sci. 2017 May 1;72(5):710-715. doi: 10.1093/gerona/glw036.

    PubMed 26946102

  • Van Regemorter V, Hummel T, Rosenzweig F, Mouraux A, Rombaux P, Huart C. Mechanisms Linking Olfactory Impairment and Risk of Mortality. Front Neurosci. 2020 Feb 21;14:140. doi: 10.3389/fnins.2020.00140. eCollection 2020.

    PubMed 32153360

  • Somekawa S, Mine T, Ono K, Hayashi N, Obuchi S, Yoshida H, Kawai H, Fujiwara Y, Hirano H, Kojima M, Ihara K, Kim H. Relationship between Sensory Perception and Frailty in a Community-Dwelling Elderly Population. J Nutr Health Aging. 2017;21(6):710-714. doi: 10.1007/s12603-016-0836-5.

    PubMed 28537337

  • Laudisio A, Navarini L, Margiotta DPE, Fontana DO, Chiarella I, Spitaleri D, Bandinelli S, Gemma A, Ferrucci L, Incalzi RA. The Association of Olfactory Dysfunction, Frailty, and Mortality Is Mediated by Inflammation: Results from the InCHIANTI Study. J Immunol Res. 2019 Feb 20;2019:3128231. doi: 10.1155/2019/3128231. eCollection 2019.

    PubMed 30915369

  • Harita M, Miwa T, Shiga H, Yamada K, Sugiyama E, Okabe Y, Miyake Y, Okuno T, Iritani O, Morimoto S. Association of olfactory impairment with indexes of sarcopenia and frailty in community-dwelling older adults. Geriatr Gerontol Int. 2019 May;19(5):384-391. doi: 10.1111/ggi.13621. Epub 2019 Apr 9.

    PubMed 30968523

  • Van Regemorter V, Coulie R, Dollase J, Momeni M, Stouffs A, Quenon L, Mouraux A, Huart C. Poor preoperative performance at Clock Drawing Test is associated with postoperative decline in olfaction in older patients: an observational pilot study. BMC Anesthesiol. 2023 Aug 30;23(1):295. doi: 10.1186/s12871-023-02256-0.

    PubMed 37648990

Questions about this trial

What is this clinical trial studying?

A study testing Olfactory identification test, Edmonton Frail Scale and Handgrip strength in people with Frailty and Perioperative/Postoperative Complications, run by Cliniques universitaires Saint-Luc- Université Catholique de Louvain at 1 site in Belgium.

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 1 inclusion and 5 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 24 Feb 2022. 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 Belgium. 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?

Prevalence of frailty (time frame: The day before surgery (preoperative period)). The study lists 2 primary outcomes in all. 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 NCT04700891, which also lists 7 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 24 Feb 2022.

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POOF Clinical Trial NCT04700891 | AzTrials