Peripheral Perfusion Index as a Predictor of Successful Supraclavicular Brachial Plexus Block

August 3, 2024 updated by: Ain Shams University

Peripheral Perfusion Index as a Predictor of Successful Supraclavicular Brachial Plexus Block in Patients Undergoing Hand Surgeries

Aim of the study is to determine the best cut off value for the PI and PI ratio for predication of successful supraclavicular brachial plexus block in young and middle age patients undergoing hand surgeries .

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

  • The supraclavicular nerve block was performed under guidance of a linear transducer (8-14 MHz; Acuson x300; Siemens Healthcare, Seoul, Korea) over the supraclavicular fossa in the coronal oblique plane immediately superior to the midclavicular point. The block was induced in the semi-sitting position, with the head of the patient turned away from the side to be blocked.
  • The PI was measured using Masimo SET pulse oximeter, applied on the index finger. The PI was recorded at baseline and at 10, 20, and 30min after local anaesthetic injection in both the blocked limb and the contralateral unblocked limb using two separate oximeters.
  • The PI ratio was calculated as the ratio between the PI at 10min after injection and the baseline PI. In every patient, a comparison between the blocked and unblocked limb was performed.
  • PI was recorded at baseline and at 10, 20, and 30 min after local anaesthetic injection in both the blocked limb and the contralateral unblocked limb.
  • PI ratio was calculated as the ratio between the PI at 10 min after injection and the baseline PI.
  • Vital data (Blood pressure, Heart rate, SPO2) was recorded before giving the block and at 10, 20, and 30 min after local anaesthetic injection and at the end of the operation.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
43

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Child
  • Adult

Accepts Healthy Volunteers

No

Sampling Method

Probability Sample

Study Population

All patients undergoing elective hand surgeries at El-demerdash Hospital of Surgery during the study period.

Description

Inclusion Criteria:

  • Adult patients aging between 15_ 60 years of both sexes.
  • Patients undergoing Elective hand Surgeries under successful supraclavicular brachial plexus block anesthesia.
  • American Society of Anesthesiologists (ASA) physical status classes I - II.

Exclusion Criteria:

  • Patient's refusal of procedure or participation in the study.
  • ASA classes III or above.
  • Coagulopathy and bleeding disorders.
  • Contraindications to supraclavicular brachial plexus block anesthesia such as local infection.
  • Hypersensitivity to the study medications.
  • Diabetes mellitus.
  • Peripheral vascular disease.
  • Emergency surgeries.

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

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Perfusion index at the blocked & unblocked limb

The Perfusion Index was recorded at baseline and at 10, 20, and 30 min after local anaesthetic injection in both the blocked limb and the contralateral unblocked limb using two separate oximeters.

In every patient , a comparison between the blocked and unblocked limb was performed .
Other: Measurement of perfusion index after supraclavicular brachial plexus block at blocked & unblocked limb
The PI (Perfusion Index) was measured using Masimo SET pulse oximetry applied on the index finger. The PI was recorded at baseline and at 10 , 20 , and 30 min after local anaesthetic injection in both the blocked limb and the contralateral unblocked limb using two separate oximeters. The PI ratio was calculated as the ratio between the PI at 10min after injection and the baseline PI. In every patient, a comparison between the blocked and unblocked limb was performed .

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Cut off value for perfusion index ( PI ) for predication of successful supraclavicular brachial plexus block.
Time Frame: Perfusion index (PI) was recorded at baseline and at 10, 20, and 30 minutes after local anaesthetic injection in both the blocked limb and the contralateral unblocked limb.
Perfusion index (PI) was recorded at baseline and at 10, 20, and 30 minutes after local anaesthetic injection in both the blocked limb and the contralateral unblocked limb.
Perfusion index (PI) was recorded at baseline and at 10, 20, and 30 minutes after local anaesthetic injection in both the blocked limb and the contralateral unblocked limb.
Cut off value for perfusion index (PI) ratio for predication of successful supraclavicular brachial plexus block.
Time Frame: Perfusion index ( PI ) ratio was recorded at baseline and 10 minutes after local anaesthetic injection
Perfusion index (PI) ratio was calculated as the ratio between the PI at 10 minutes after injection and the baseline PI.
Perfusion index ( PI ) ratio was recorded at baseline and 10 minutes after local anaesthetic injection

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Ain Shams University

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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
August 1, 2024

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
November 1, 2024

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 1, 2024

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
May 12, 2024

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 7, 2024

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 10, 2024

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 6, 2024

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 3, 2024

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
December 1, 2023

More Information

Terms related to this study

Keywords

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • FMASU MS 726/2023

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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