Sparing the phrenic nerve by administering ultrasound-guided low volume superior trunk block (STB) and interscalene block (ISB) for arthroscopic shoulder surgery (labral repair, stabilization, rotator cuff repair).
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
126
Anesthetic that will help treat pain and sensation after shoulder arthroscopy
Ultrasound will help guide the anesthesiologist in performing the different nerve blocks
Hospital for Special Surgery
New York, New York, United States
Number of Participants With Incidence of Hemidiaphragmatic Paralysis (HDP)
Our primary outcome will be the incidence of hemidiaphragmatic paralysis (HDP) with superior trunk block and interscalene blocks as measured by ultrasound before and after the surgery.
Time frame: Day of Surgery, diagnosis confirmed from trained anesthesiologist ultrasound readers
Numerical Pain Rating System (NRS) Pain Scores
Numerical Pain Rating System Pain scores after the superior trunk block and interscalene block at rest measured after the surgery every 30 minute until discharge according to the Post Anaesthetic Discharge Scoring System. Numerical Rating Scale 0-10; with 0 being no pain and 10 pain as bad as you can imagine.
Time frame: Average pain scores at rest recorded Day of Surgery every 30 minutes until discharge according to Post Anaesthetic Discharge Scoring System
Block Duration
Length of nerve block reported by Phone call on POD 1 and POD 2 by patient phone call
Time frame: Time of block wearing off recorded on Post Operative Day 1 and Post Operative Day 2 as reported via patient phone call.
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