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

NCT07400185 | Not Yet Recruiting

• 1 other identifier: 26.12.2025-2-01
• Study Type: observational
• Target: 150
• Locations: 1 country
• Sites: 1

Brief Summary

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.

Conditions

Perfusion Index; Position Differences

Keywords

The Effects of Changes in Operating Table Position on Perfusion Index and Spinal Anesthesia; operating table position

Outcome Measures

Primary Outcomes (1)

• perfusion index

  The amount of increase over time will be recorded according to the basal perfusion index value.

  5 min

Study Arms (2)

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.

Eligibility Criteria

• Age: 18 Years - 65 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)
• 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.

You may qualify if:

• 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.

You may not qualify if:

• 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

Sponsors & Collaborators

• Enes Celik: lead

Study Sites (1)

Mardin Artuklu University Training and Research Hospital

Mardin, Artuklu, 47100, Turkey (Türkiye)

Location

Related Publications (1)

• Tapar H, Karaman S, Dogru S, Karaman T, Sahin A, Tapar GG, Altiparmak F, Suren M. The effect of patient positions on perfusion index. BMC Anesthesiol. 2018 Aug 17;18(1):111. doi: 10.1186/s12871-018-0571-z.

  PMID: 30115011 BACKGROUND

Central Study Contacts

enes ç çelik, MD

CONTACT

+905066140284; enescelik@artuklu.edu.tr

Study Design

• Study Type: observational
• Observational Model: CASE CONTROL
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: SPONSOR INVESTIGATOR
• PI Title: ANESTHESIOLOGIST

Study Record Dates

• First Submitted: February 3, 2026
• First Posted: February 10, 2026
• Study Start: February 5, 2026
• Primary Completion: April 15, 2026
• Study Completion: April 20, 2026
• Last Updated: February 11, 2026

Record last verified: 2026-02

Locations

TU (1)