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Postoperative DeliriumZolDelNCT04875182

The Relationship Between Zonulin and Interleukin-8 Levels and Postoperative Delirium Development

An observational study of Postoperative Delirium, run by Dr. Gokhan Vural at 1 site in Turkey (Türkiye).

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 relationship between zonulin and interleukin-8 levels and postoperative delirium development in patients who had femur fracture surgery under regional anesthesia Read more about this study

Who is it for?
Ages 65 years and older
Conditions the study is for
Postoperative Delirium
What is being tested?
Evaluation of Delirium development
How many people
73 participants
Where
1 siteTurkey (Türkiye)
Study dates
1 May 2021to 2 Sep 2021
Phase
Observational
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

Study population: Both male and female patients over 65 years of age who will undergo femur neck and inthertrocanteric fracture surgery with regional anesthesia

Who may be able to join

  • patients over 65 years with mini mental state score > 21, undergoing femur fixation surgery

Who cannot join

  • anticholinergic drug use, known epilepsy, Parkinson, Alzheimer's disease, dementia, cognitive function disorder

Trial locations and contacts

1 site in 1 country.

Turkey (Türkiye)1 site
  • Muğla Sıtkı Koçman University

    Muğla, Menteşe, 48000

Other trials in Turkey (Türkiye)

About this study

Official title: The Relationship Between Zonulin and Interleukin-8 Levels and Postoperative Delirium Development in Patients Who Had Femur Fracture Surgery Under Regional Anesthesia

The relationship between zonulin and interleukin-8 levels and postoperative delirium development in patients who had femur fracture surgery under regional anesthesia

Read the detailed description

Patients who are over 65 years of age and scheduled for femur fixation surgery will be included in the study. Blood samples for zonulin and interleukin-8 levels will be taken at the day prior to the surgery. All patients will be evaluated by the Turkish version of the Delirium Rating Scale-Revised-98 (DRS-R-98) for delirium development at the postoperative 1., 2. and 3. days. Patients with a DRS-R-98 score of 16 points or higher will be included in the Group Delirium. And second blood samples for zonulin and interleukin-8 levels will be taken at the time of diagnosis.

Postoperative pain scores of the patients will recorded by using a numerical rating scale (NRS).

Being tested
Evaluation of Delirium development
Medical subject headings
Emergence Delirium

What participants receive

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

  • Evaluation of Delirium developmentDiagnostic test

    Also called Postoperative pain evaluation

    Postoperative pain scores of the patients will recorded by using a numerical rating scale.

Study groups in NCT04875182
Study groupRoleWhat they receive
group deliriumPatients who are over 65 years of age and scheduled for femur fixation surgery will be included in the study. Blood samples for zonulin and interleukin-8 levels will be taken at the day prior to the surgery. All patients will be evaluated by Delirium Rating Scale for delirium development at the postoperative 1., 2. and 3. days. Patients with a Delirium Rating Scale-Revised-98 score of 16 points or higher will be included in the Group Delirium. And second blood samples for zonulin and interleukin-8 levels will be taken at the time of diagnosis. Postoperative pain scores of the patients will recorded by using a numerical rating scale.
Receives: Diagnostic Test: Evaluation of Delirium development
group controlPatients who are over 65 years of age and scheduled for femur fixation surgery will be included in the study. Blood samples for zonulin and interleukin-8 levels will be taken at the day prior to the surgery. All patients will be evaluated by Delirium Rating Scale for delirium development at the postoperative 1., 2. and 3. days. Patients with a Delirium Rating Scale-Revised-98 score under 16 points for postoperative 72 hours will be included in the Group Control. And second blood samples for zonulin and interleukin-8 levels will be taken at the postoperative 72. hour. Postoperative pain scores of the patients will recorded by using a numerical rating scale.
Receives: Diagnostic Test: Evaluation of Delirium development

What is being measured

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

  1. preoperative Zonulin

    The relation between postoperative delirium development and preoperative blood zonulin levels. The correlation between them will be analyzed by statistical analysis.

    Measured: in the preoperative 24. hour

  2. postoperative Zonulin

    The relation between postoperative delirium development and postoperative blood zonulin levels The correlation between them will be analyzed by statistical analysis.

    Measured: At the postoperative 72. hour

Secondary outcomes (2)
  1. preoperative Interleukin-8

    The relation between postoperative delirium development and preoperative blood interleukin-8 levels. The correlation between them will be analyzed by statistical analysis.

    Measured: in the preoperative 24. hour

  2. postoperative Interleukin-8

    The relation between postoperative delirium development and postoperative blood interleukin-8 levels. The correlation between them will be analyzed by statistical analysis.

    Measured: At the postoperative 72. hour

Timeline

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

  1. First posted6 May 2021
  2. Study start1 May 2021
  3. Primary completion2 Sep 2021
  4. Study completion2 Sep 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Prospective
Enrolment
73 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04875182
Sponsor's protocol ID
26.02.2020- 04/VI
Acronym
ZolDel
Status last verified
Oct 2026
First submitted
30 Apr 2021
Last updated
20 Oct 2026
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: no IPD will be shared with other researchers or anyone else

Questions about this trial

What is this clinical trial studying?

An observational study of Postoperative Delirium, run by Dr. Gokhan Vural at 1 site in Turkey (Türkiye).

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 1 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 20 Oct 2026. 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 Turkey (Türkiye). 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?

preoperative Zonulin (time frame: in the preoperative 24. hour). 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?
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 20 Oct 2026.

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