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Can a simple memory test predict confusion after hip surgery?

NCT ID NCT07432009

Knowledge-focused Sponsor: Tomas Bata Hospital, Czech Republic Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jul 10, 2026 · Updated 2 times

Summary

This study looks at whether older adults with mild memory issues are more likely to become confused after planned hip replacement surgery. Researchers will test memory before surgery and watch for confusion in the first three days after. The goal is to see if a quick memory test can help doctors predict and prevent this serious complication.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 400 people

The number the study aims to enrol. It can still change while the study runs.

Started

Apr 2026

Expected to finish

Mar 2030

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Prospective cohort of patients aged 65 years and older undergoing elective total hip arthroplasty in seven hospitals in the Czech Republic. All participants receive standard perioperative care. No interventions are assigned as part of the study; only observational data are collected.

Ages

65 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Age ≥ 65 years * Elective total hip arthroplasty in general or regional anesthesia * ASA physical status I-III * Ability to understand and cooperate during testing; no severe sensory impairment (compensatory aids allowed) * Expected postoperative hospitalization in ICU, PACU, or standard ward Exclusion Criteria: * Glasgow Coma Scale ≤ 14 * Limited legal capacity * Active psychiatric disorder (e.g., psychotic disorder, bipolar disorder) * Active oncological disease * Chronic use of strong opioids * Premedication with anxiolytics or antipsychotics during preanesthetic evaluation * Acute reoperation within 3 months of primary surgery * Refusal to participate or withdrawal of consent

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Conditions

The condition(s) this trial relates to.

Cognitive Dysfunction Emergence Delirium Frailty

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Cognitive impairment Frailty Hip arthroplasty Older adults Postoperative delirium

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    7 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Tomas Bata Regional Hospital

    RECRUITING

    Zlín, 6275, Czechia

  • University Hospital Brno - Bohunice

    NOT_YET_RECRUITING

    Brno, 62500, Czechia

  • University Hospital Královské Vinohrady

    NOT_YET_RECRUITING

    Prague, 10034, Czechia

  • University Hospital Motol

    NOT_YET_RECRUITING

    Prague, 15006, Czechia

  • University Hospital Olomouc - Department of Anaesthesiology, Resuscitation and Intensive Care

    NOT_YET_RECRUITING

    Olomouc, 77900, Czechia

  • University Hospital Ostrava - Department of Anaesthesiology, Resuscitation and Intensive Care

    NOT_YET_RECRUITING

    Ostrava, Czechia

  • Vsetín Hospital

    NOT_YET_RECRUITING

    Vsetín, Czechia

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