Correlation Between Spinal Anesthesia and Perfusion Index

Investigation of the Correlation Between the Success of Obtaining Unilateral Spinal Anesthesia and the Measurement of Perfusion Index (pi).

Investigation of the correlation between the success of obtaining unilateral spinal anesthesia and the measurement of perfusion index (pi).

Study Overview

• Status: Recruiting
• Conditions: Inguinal Hernia
• Intervention / Treatment: Device: perfusion index measurement

Detailed Description

Target sites for spinal anesthetics are spinal nerve roots and spinal cord. Differences in the anatomy of the nerve roots may explain the variability that occurs during spinal anesthesia. Spinal anesthesia is the cessation of nerve conduction for a while by injection of local anesthetic drug into the cerebrospinal fluid. It is one of the most effective and oldest regional anesthesia techniques. Unilateral spinal anesthesia, on the other hand, aims to limit the distribution of the spinal block to the operated side for all operations involving only one lower extremity. Reducing the dose of local anesthetic, pencil-point needles, injection speed, lateral decubitus position and non-isobaric anesthetic solution are the main factors in the formation of a unilateral spinal block. It requires slightly longer preparation time compared to standard spinal anesthesia, but provides fewer hemodynamic side effects with higher cardiovascular stability, increased postoperative autonomy and better patient acceptance. Perfusion index (PI) is a numerical value showing the ratio between pulsatile and nonpulsatile blood flow. PI works by measuring changes in finger peripheral perfusion via pulse oximetry. If the procedure is successful in patients undergoing spinal anesthesia, vasodilation occurs in the lower extremities due to sympathetic nerve blockage and perfusion increases. Pulse oximetry perfusion index (PI) was used in our study to indicate vasodilation associated with sympathectomy. We will examine whether the success of unilateral anesthesia in the spinal anesthesia performed in our hospital correlates with the increase of the perfusion index value measured with the finger probe, except for patient-based methods, and whether the perfusion index shows more objectively the block success than other patient-based traditional methods.

• Study Type: Observational
• Enrollment (Anticipated): 68

Contacts and Locations

• Study Contact: Name: öznur uludağ; Phone Number: +904162231690 05052309730; Email: uludagoznur@gmail.com

Study Locations

• Turkey
  • Adıyaman, Turkey
    • Recruiting
    • Adıyaman University
    • Contact: öznur uludağ; Phone Number: +9 04162231690 05052309730; Email: uludagoznur@gmail.com

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 65 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

• Sampling Method: Probability Sample

Study Population

Male and female patients between the ages of 18-65

Description

Inclusion Criteria:

1. Patients who will undergo lower abdominal, urogenital, lower extremity surgery
2. Patients with ASA 1-2
3. Patients aged 18-65

Exclusion Criteria:

1. Patients with ASA3-4
2. Those with peripheral vascular disease
3. Patients with a history of by-pass
4. Patients with aortic stenosis

Study Plan

How is the study designed?

Design Details

• Observational Models: Case-Only
• Time Perspectives: Cross-Sectional

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
perfusion index is my indicator of unilateral spinal anesthesia	Pulse oximetry perfusion index (PI) was used in our study to indicate vasodilation associated with sympathectomy. We will examine whether the success of unilateral anesthesia in the spinal anesthesia performed in our hospital correlates with the increase of the perfusion index value measured with the finger probe, except for patient-based methods, and whether the perfusion index shows more objectively the block success than other patient-based traditional methods.	1 month

Collaborators and Investigators

• Sponsor: Adiyaman University

Study record dates

Study Major Dates

• Study Start (Anticipated): September 20, 2021
• Primary Completion (Anticipated): January 1, 2022
• Study Completion (Anticipated): February 1, 2022

Study Registration Dates

• First Submitted: September 17, 2021
• First Submitted That Met QC Criteria: September 17, 2021
• First Posted (Actual): September 27, 2021

Study Record Updates

• Last Update Posted (Actual): September 27, 2021
• Last Update Submitted That Met QC Criteria: September 17, 2021
• Last Verified: September 1, 2021

More Information

Terms related to this study

• Keywords: spinal anesthesia, perfusion index
• Additional Relevant MeSH Terms: Pathological Conditions, Anatomical; Hernia, Abdominal; Hernia; Hernia, Inguinal
• Other Study ID Numbers: date:22/12/2020 ID:2020/11-20

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: No
• IPD Plan Description: I do not plan to make individual participant data available to other researchers

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No