---
title: Brachial Artery Pulsatility Index in Supraclavicular Block
nct_id: NCT06475638
overall_status: COMPLETED
sponsor: Cairo University
study_type: OBSERVATIONAL
primary_condition: Brachial Plexus Anesthesia
countries: Egypt
canonical_url: "https://parkinsonspathways.com/agent/trials/NCT06475638.md"
clinicaltrials_gov: "https://clinicaltrials.gov/study/NCT06475638"
ct_last_update_post_date: 2025-01-14
last_seen_at: "2026-05-12T07:31:15.485Z"
source: ClinicalTrials.gov (mirrored, no enrichment)
---
# Brachial Artery Pulsatility Index in Supraclavicular Block

**Official Title:** Evaluation of Brachial Artery Pulsatility Index as a Predictor of Successful Supraclavicular Block: a Prospective Observational Study

**NCT ID:** [NCT06475638](https://clinicaltrials.gov/study/NCT06475638)

## Key Facts

- **Status:** COMPLETED
- **Study Type:** OBSERVATIONAL
- **Target Enrollment:** 89
- **Lead Sponsor:** Cairo University
- **Conditions:** Brachial Plexus Anesthesia, Diagnostic Accuracy
- **Start Date:** 2024-07-20
- **Completion Date:** 2025-01-11
- **CT.gov Last Update:** 2025-01-14

## 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

## Eligibility

- **Minimum age:** 18 Years
- **Maximum age:** 65 Years
- **Sex:** ALL
- **Healthy Volunteers:** No

```
Inclusion Criteria:

\- ASA 1 undergoing forearm or hand surgery

Exclusion Criteria:

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

## Interventions

- **brachial artery doppler** (DEVICE) — brachial artery doppler evaluation before and after supraclavicular block

## Primary Outcomes

- **the change in pulsatility index as a predictor to successful supraclavicular block** _(time frame: 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 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)_

## Locations (1)

- Cairo University, Cairo, Egypt

## Recent Field Changes (last 30 days)

- `eligibility.criteria` — added _(2026-05-12)_
- `status.overallStatus` — added _(2026-05-12)_
- `status.primaryCompletionDate` — added _(2026-05-12)_
- `status.completionDate` — added _(2026-05-12)_
- `status.lastUpdatePostDate` — added _(2026-05-12)_
- `design.enrollmentCount` — added _(2026-05-12)_
- `eligibility.minAge` — added _(2026-05-12)_
- `eligibility.maxAge` — added _(2026-05-12)_
- `eligibility.sex` — added _(2026-05-12)_
- `outcomes.primary` — added _(2026-05-12)_
- `outcomes.secondary` — added _(2026-05-12)_
- `armsInterventions.interventions` — added _(2026-05-12)_
- `sponsor.lead` — added _(2026-05-12)_
- `results.hasResults` — added _(2026-05-12)_
- `locations.cairo university|cairo||egypt` — added _(2026-05-12)_

---

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*Source data (authoritative): https://clinicaltrials.gov/study/NCT06475638*  
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