Pain | Supraclavicular Versus Interscalene Block
Pain research study
What is the primary objective of this study?
We hypothesize that both ultrasound-guided supraclavicular and interscalene block provide similar analgesia after shoulder surgery.
Who is eligible to participate?
Inclusion Criteria: American Society of Anesthesiologists physical status I-III inpatients undergoing shoulder surgery Exclusion Criteria: pregnancy, severe respiratory disease, preexisting neuropathy in the operated arm, coagulopathy, allergy to study medication
Which medical condition, disease, disorder, syndrome, illness, or injury is researched?
Interventions can include giving participants drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available or noninvasive approaches such as surveys, education, and interviews.
Procedure:Interscalene blockUltrasound-guided interscalene block is performed.
Procedure:Supraclavicular blockUltrasound-guided supraclavicular block is performed
Research studies and clinical trials typically have two or more research arms. An arm is a group of people who receive the same treatment in the study.
Interscalene blockInterscalene block is performed under ultrasound guidance. Linear probe is placed on the ipsilateral interscalene groove visualizing the brachial plexus located between anterior and middle scalene muscles. Using in-plane technique, an insulated needle is advanced into the brachial plexus sheath, into which 20 ml of 0.375% ropivacaine is injected.
Supraclavicular blockSupraclavicular block is performed under ultrasound guidance. Linear probe is placed on the ipsilateral supraclavicular fossa visualizing the brachial plexus located lateral to the subclavian artery. Using in-plane technique, an insulated needle is advanced into the brachial plexus sheath, into which 20 ml of 0.375% ropivacaine is injected.
Start Date: November 2013
Completed Date: December 2014
Primary Outcome: pain duration
Secondary Outcome: diaphragmatic movement
Study sponsors, principal investigator, and references
Principal Investigator: Chunwoo Yang, MD
Lead Sponsor: Cheju Halla General Hospital
Fredrickson MJ, Krishnan S, Chen CY. Postoperative analgesia for shoulder surgery: a critical appraisal and review of current techniques. Anaesthesia. 2010 Jun;65(6):608-24. doi: 10.1111/j.1365-2044.2009.06231.x. Review.
Liu SS, Gordon MA, Shaw PM, Wilfred S, Shetty T, Yadeau JT. A prospective clinical registry of ultrasound-guided regional anesthesia for ambulatory shoulder surgery. Anesth Analg. 2010 Sep;111(3):617-23. doi: 10.1213/ANE.0b013e3181ea5f5d. Epub 2010 Aug 4.