Perioperative Hypothermia and Sevoflurane Consumption in Elderly Patients

March 8, 2026 updated by: Yadigar Yılmaz, Sultan Abdulhamid Han Training and Research Hospital, Istanbul, Turkey

Perioperative Hypothermia and Sevoflurane Consumption in Elderly Patients Undergoing Hip Arthroplasty

This prospective observational study aims to evaluate the association between perioperative hypothermia and sevoflurane consumption in elderly patients undergoing hip arthroplasty under general anesthesia. Patients aged 65 years and older will be included. Perioperative body temperature and anesthetic consumption will be recorded, and the relationship between hypothermia and anesthetic requirements will be analyzed. The findings may help clarify whether hypothermia influences anesthetic depth monitoring and anesthetic consumption in elderly surgical patients.

Study Overview

Status

Not yet recruiting

Conditions

Study Type

Observational

Enrollment (Estimated)

70

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Older Adult

Accepts Healthy Volunteers

Yes

Sampling Method

Non-Probability Sample

Study Population

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

Description

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

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Hypothermia cohort
Normothermia cohort

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Sevoflurane consumption (mL/hour)
Time Frame: Intraoperative period
Intraoperative period

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sultan Abdulhamid Han Training and Research Hospital, Istanbul, Turkey

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

March 20, 2026

Primary Completion (Estimated)

July 1, 2026

Study Completion (Estimated)

July 1, 2026

Study Registration Dates

First Submitted

March 8, 2026

First Submitted That Met QC Criteria

March 8, 2026

First Posted (Actual)

March 12, 2026

Study Record Updates

Last Update Posted (Actual)

March 12, 2026

Last Update Submitted That Met QC Criteria

March 8, 2026

Last Verified

March 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

  • E-10840098-202.3.02-5175

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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