Is Perfusion Index an Indicator of Block Success in Ultrasound-guided Infraclavicular Brachial Plexus Block

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2014-04-15

Study Completion Date

2014-10-30

Brief Summary

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The infraclavicular nerve block, which is frequently preferred in upper extremity surgeries, provides additional advantages such as reduction in opioid consumption by providing analgesic effect in the postoperative period as welll. The success of peripheral nerve blocks is usually assessed by subjective feedback from the patient, and patient cooperation is needed. The aim of this study is to assess whether the perfusion index level, which can be measured noninvasively, can be a predictor of the infraclavicular block success.

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Detailed Description

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Thirty patients who were operated on for carpal tunnel syndrome under infraclavicular brachial plexus block were included in our study. After the procedure, at 10-minute intervals, the sensory block was assessed by a pinprick test, and the motor block was assessed by the ability to flex the hand and the forearm. In addition, PI and skin temperature were measured 0-10-20-30 minutes after the block and at postoperative 2, 4, and 6 hours. 30 minutes after the measurements, the surgical procedure was allowed to begin in patients with successful block.

Conditions

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Carpal Tunnel Syndrome Perfusion Index

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Parallel Assignment

Primary Study Purpose

SUPPORTIVE_CARE

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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Blocked arm

The investigators performed an infraclavicular nerve block to the operated arm group to provide anesthesia.

Group Type ACTIVE_COMPARATOR

Infraclavicular nerve block

Intervention Type PROCEDURE

The investigators performed an infraclavicular nerve block to the operated arm group to provide anesthesia.

Unblocked arm

The upper extremity without block was assigned as the control group, and a comparison was made between the two upper extremities.

Group Type ACTIVE_COMPARATOR

Without nerve block

Intervention Type PROCEDURE

The upper extremity without block was assigned as the control group, and a comparison was made between the two upper extremities.

Interventions

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Infraclavicular nerve block

The investigators performed an infraclavicular nerve block to the operated arm group to provide anesthesia.

Intervention Type PROCEDURE

Without nerve block

The upper extremity without block was assigned as the control group, and a comparison was made between the two upper extremities.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Ages of 18-75
* Patients who will diagnose with carpal tunnel syndrome by electroneuromyography (ENMG), and will undergo unilateral surgery under elective conditions
* ASA I-II-III patients

Exclusion Criteria

* Patients who will refuse this method
* Neurological deficits,
* Diabetes mellitus,
* Local anesthetic allergy,
* Morbidly obese,
* Peripheral vascular disease, coronary artery disease, or coagulopathy

Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No