Brachial Artery Pulsatility Index in Supraclavicular Block

Cairo University89 enrolled

Overview

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

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

Study Type

OBSERVATIONAL

Enrollment

Conditions

Brachial Plexus Anesthesia Diagnostic Accuracy

Interventions

brachial artery dopplerDEVICE

brachial artery doppler evaluation before and after supraclavicular block

Eligibility

Sex: ALLMin age: 18 YearsMax age: 65 Years

Medical Language ↔ Plain English

Inclusion Criteria: \- ASA 1 undergoing forearm or hand surgery Exclusion Criteria: * patient refusal allergy to local anesthetics fracture humerus Diabetes Melitus peripheral vascular disease

Locations (1)

Cairo University

Cairo, Egypt

Outcomes

Primary Outcomes

the change in pulsatility index as a predictor to successful supraclavicular block

the difference between the index before and after the block divided by the index value before the block

Time frame: baseline and at 5 minutes interval after block for 30 minutes

Secondary Outcomes

change in resistive index as a predictor for successful block

Time frame: baseline then at 5 minutes interval for 30 minutes

change in waveform morphology as a predictor to successful block

Time frame: baseline and within 10 minutes of block

Data from ClinicalTrials.gov

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