Ultrasound-guided Interscalene Block:3mL Ropi Provide Similar Analgesia to 5mL and Less Diaphragmatic Paralysis

Ropivacaine for Ultrasound-guided Interscalene Block: 3mL Provide Similar Analgesia to 5mL With Less Diaphragmatic Paralysis in Shoulder Arthroscopy Surgeries

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT04317235

Enrollment

Registered

2020-03-23

Start date

2016-01-10

Completion date

2019-01-20

Last updated

2020-03-23

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

Conditions

Diaphragmatic Paralysis

Brief summary

Ropivacaine for ultrasound-guided interscalene block: 3mL provide similar analgesia to 5mL with less diaphragmatic paralysis in shoulder arthroscopy surgeries

Detailed description

Ropivacaine for ultrasound-guided interscalene block: 3mL provide similar analgesia to 5mL with less diaphragmatic paralysis in shoulder arthroscopy surgeries with no toxicity and no adverse reaction or complications we targeted under echography each nerve to be blocked alone either to put around all the nerves a big volume

Interventions

DRUGRopivacaine 0.5% Injectable Solution

Is to put 3 ml or 5 ml and show the difference

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

PREVENTION

Masking

SINGLE (Subject)

Eligibility

Sex/Gender

ALL

Healthy volunteers

Yes

Inclusion criteria

* ASA1-2

Exclusion criteria

* ASA3-4 anticoagulant

Design outcomes

Primary

Measure	Time frame	Description
Diaphragmatic paralysis	Up to 48 hours	on x ray we look if there is an elevated diaphragm
Pain relief	up to day 2 after operation	pain scale 1-10 score 1 no pain and 10 severe pain first by visiting patient before discharge twice and thereafter on the phone

Outcome results

None listed

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