Correlation Between Spinal Anesthesia and Perfusion Index

NCT ID: NCT05058378

Last Updated: 2021-09-27

Basic Information

• Recruitment Status: UNKNOWN
• Total Enrollment: 68 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2021-09-20
• Study Completion Date: 2022-02-01

Brief Summary

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

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.

Conditions

Inguinal Hernia

Study Design

• Observational Model Type: CASE_ONLY
• Study Time Perspective: CROSS_SECTIONAL

Interventions

perfusion index measurement

Clip will be attached to the patient's toe for perfusion index measurement

Intervention Type: DEVICE

Eligibility Criteria

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

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 65 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Adiyaman University

OTHER

Sponsor Role: lead

Responsible Party

MEHMET DURAN

assistant professor

Responsibility Role: PRINCIPAL_INVESTIGATOR

Locations

Adıyaman University

Adıyaman, , Turkey (Türkiye)

Site Status: RECRUITING

Countries

Turkey (Türkiye)

Central Contacts

öznur uludağ

Role: CONTACT

uludagoznur@gmail.com

05052309730 ext. +904162231690

Facility Contacts

öznur uludağ

Role: primary

uludagoznur@gmail.com

05052309730 ext. +9 04162231690

Other Identifiers

date:22/12/2020 ID:2020/11-20

Identifier Type: -

Identifier Source: org_study_id