None listed
Conditions
Interventions
Drug : Before interscalene BPB, subjects were randomly assigned to three groups according to the injected drug.
group 1 (placebo control): ropivacaine 0.5%
20ml + normal saline
group 2: ropivacaine 0.5%
10ml + epinephrine 5mcg / ml
group 3: ropivacaine 0.5%
20ml + epinephrine 5mcg / ml
Sponsors
Samsung Medical Center
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: An adult with shoulder arthroscopy (19 - 75 years old) American Society of Anesthesiologists class I-III
Exclusion criteria
Exclusion criteria: Pediatrics (age under 18 years old) American Society of Anesthesiologists class IV or higher BMI greater than 30 Patients with heart disease (myocardial infarction, heart failure, arrhythmia) Patients with a history of cerebral infarction, cerebral hemorrhage Patients taking long-term opioid preparations pregnant woman Patients who are allergic to local anesthetics Patients taking anticoagulants and medications inappropriate for site anesthesia Patients with skin infections to be treated with square braces Chronic pain disorder Patients with severe lung disease Peripheral neuropathy of the arm undergoing neurological deficit or square brachial blockade
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Differences in the duration of neural blockade with or without the addition of epinephrine to 20 ml of 0.5% ropivacaine;Whether the effect is equivalent after ropivacaine dose reduction | — |
Secondary
| Measure | Time frame |
|---|---|
| onset time of interscalene BPB;opioid consumption during surgery;The difference in the dose of analgesic used for 24 hours after surgery | — |
Countries
Korea, Republic of
Contacts
Public ContactDoyeon Kim
Samsung Medical Center
Outcome results
None listed