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Chilly patients may need more anesthesia during hip surgery, study suggests

NCT ID NCT07467681

Knowledge-focused Sponsor: Sultan Abdulhamid Han Training and Research Hospital, Istanbul, Turkey Source: ClinicalTrials.gov ↗

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
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.
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Running, but no longer taking on new participants.
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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 Results may not be published yet.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)

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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

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Status unknown
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First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study will observe 70 elderly patients (65 and older) undergoing hip replacement surgery to see if getting cold during the operation changes how much anesthesia they need. Researchers will measure body temperature and track the amount of sevoflurane (a common anesthetic gas) used. The goal is to better understand how hypothermia affects anesthesia needs in older adults, which could help improve surgical care.

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 70 people

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

Expected to start

Mar 2026

An estimate. Start dates often move.

Expected to finish

Jul 2026

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

Patients aged 65 years and older undergoing elective hip arthroplasty under general anesthesia.

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 hip arthroplasty under general anesthesia * ASA physical status I-III Exclusion Criteria: * Preoperative Mini-Cog score ≤ 2 * Neurological or psychiatric disorders affecting cognitive function * Endocrine or metabolic disorders affecting thermoregulation * Excessive intraoperative blood loss * Emergency surgery

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As listed by the trial registrant

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

Perioperative hypothermia

How to take part

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