We performed a prospective randomized study to investigate the effect of the volume of local anesthetic on phrenic nerve paralysis during interscalene brachial plexus block. The assessment of phrenic nerve paralysis was evaluated with diaphragmatic ultrasound on changes of thickness of the diaphragm.
Not Applicable
Recruiting
- Conditions
- Diseases of the musculo-skeletal system and connective tissue
- Registration Number
- KCT0005575
- Lead Sponsor
- Hallym University
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Recruiting
- Sex
- All
- Target Recruitment
- 52
Inclusion Criteria
Patients undergoing elective arthroscopic shoulder surgery for rotator cuff tear, biceps tendinosis and Bankart lesion, and Brisement manipulation for frozen shoulder.
Exclusion Criteria
Exclusion criteria included an existing severe respiratory disease, pregnancy, a history of allergy to local anesthetics and refusal to participate in the study.
Study & Design
- Study Type
- Interventional Study
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Thickening fraction which defined the percentage of change in thickness between end-expiration and peak-inspiration is calculated as following formula; (thickness at peak-inspiration – thickness at end-expiration / thickness at end-expiration) ×100.
- Secondary Outcome Measures
Name Time Method The worst oxygen saturation;Resting pain is measured by an 11-point numerical rating scale and scored as follows: 0 = no pain and 10 = the worst pain;Handgrip strength is measured by asking the patient to make a fist and squeeze the examiner’s fingers and graded as follows: 0 = complete loss of power, 1 = weakness, and 2 = normal.