Evaluation Of The Effects Of Changes In Operating Table Position On Perfusion Index And Spinal Anesthesia (Perfusion)

February 9, 2026 updated by: Enes Celik

Evaluation Of The Effects Of Changes In Operating Table Position On Perfusion Index And Spinal Anesthesia: An Observational Study

The aim of this observational study is to investigate how table position affects the development of block in patients undergoing spinal anesthesia. Perfusion index measurements will be used to answer this question. Patients who will undergo perfusion index measurement during surgery will be included in the study. These patients will be compared with patients whose anesthesiologists chose not to position them on the operating table. The study is planned to continue for approximately 40 days, and the data collected during this period will be used for evaluation.

Study Overview

Status

Not yet recruiting

Conditions

Detailed Description

Patients aged 18-65 years in ASA1-3 risk group who will undergo lower extremity surgery with spinal anesthesia are planned to be included in the study.

Study Type

Observational

Enrollment (Estimated)

150

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

Study Locations

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

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Sampling Method

Probability Sample

Study Population

Patients who will undergo lower extremity surgery within the specified time frame, are in ASA 1-3 risk group, have no additional medical conditions, and will receive spinal anesthesia.

Description

Inclusion Criteria:

  • Patients who will undergo lower extremity surgery within the specified time frame, are in ASA 1-3 risk group, have no additional medical conditions, and will receive spinal anesthesia.

Exclusion Criteria:

  • Patients under 18 and over 65 years of age Patients who have received anesthesia other than spinal anesthesia Patients with peripheral artery disease Patients with nail polish, etc. on their nails

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
neutral group
Patients will be included who are positioned so that the operating table is neutral.
tilt group
Patients will be positioned on the operating table with an incline towards the side they will be operated on.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
perfusion index
Time Frame: 5 min
The amount of increase over time will be recorded according to the basal perfusion index value.
5 min

Collaborators and Investigators

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

Sponsor

Enes Celik

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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)

February 5, 2026

Primary Completion (Estimated)

April 15, 2026

Study Completion (Estimated)

April 20, 2026

Study Registration Dates

First Submitted

February 3, 2026

First Submitted That Met QC Criteria

February 3, 2026

First Posted (Actual)

February 10, 2026

Study Record Updates

Last Update Posted (Actual)

February 11, 2026

Last Update Submitted That Met QC Criteria

February 9, 2026

Last Verified

February 1, 2026

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • 26.12.2025-2-01

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

IPD Plan Description

In accordance with the personal data protection law, personal data may be shared for scientific purposes after being anonymized.

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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