Brachial Artery Pulsatility Index in Supraclavicular Block

Evaluation of Brachial Artery Pulsatility Index As a Predictor of Successful Supraclavicular Block: a Prospective Observational Study

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT06475638

Enrollment

Registered

2024-06-26

Start date

2024-07-20

Completion date

2025-01-11

Last updated

2025-01-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Brachial Plexus Anesthesia, Diagnostic Accuracy

Keywords

pulsatility index, successful block, resistive index

Brief summary

Investigators aimed to evaluated accuracy of brachial artery doppler derived indices such as change in pulsatility index, resistive index, and waveform morphology in predicting successful supraclavicular block

Detailed description

supraclavicular brachial plexus block gives adequate anesthesia and analgesia for arm and hand surgeries. successful block was classically evaluated via assessment of both sensory and motor functions, However this carry disadvantages of subjective assessment including patient cooperation. objective monitors of successful block depend on sympasthetic mediated changes including perfusion index, thermography, and LASER doppler. However most of these tools depend on complicated technology and special devices. therefore it was assumed that the use of brachial artery derived indices such as pulsatility index, resistive index, and waveform morphology would provide simple, easy and economic assessment tool for successful supraclavicular brachial plexus block

Interventions

DEVICEbrachial artery doppler

brachial artery doppler evaluation before and after supraclavicular block

Study design

Observational model

COHORT

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to 65 Years

Healthy volunteers

Inclusion criteria

\- ASA 1 undergoing forearm or hand surgery

Exclusion criteria

* patient refusal allergy to local anesthetics fracture humerus Diabetes Melitus peripheral vascular disease

Design outcomes

Primary

Measure	Time frame	Description
the change in pulsatility index as a predictor to successful supraclavicular block	baseline and at 5 minutes interval after block for 30 minutes	the difference between the index before and after the block divided by the index value before the block

Secondary

Measure	Time frame
change in resistive index as a predictor for successful block	baseline then at 5 minutes interval for 30 minutes
change in waveform morphology as a predictor to successful block	baseline and within 10 minutes of block

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026