Electrical Impedance Tomography-based detection of phrenic nerve blocks occurring after ultrasound-guided anterior suprascapular nerve blocks compared to interscalene brachial plexus blocks for arthroscopic shoulder surgery.
Phase 4
- Conditions
- Indication for elective shoulder surgery
- Registration Number
- DRKS00011787
- Lead Sponsor
- ACQUA Klinik Abteilung Anästhesie
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Complete
- Sex
- All
- Target Recruitment
- 55
Inclusion Criteria
1. Arthroscopic shoulder surgery
2. Patients in ASA classes 1 to 3
3. Informed consent
4. Surgery with General anaesthetic
5. Meets guidelines regarding peri-operative coagulation
6. Age > 18 years
Exclusion Criteria
1. Allergy to local anaesthetic
2. Pregnancy
3. Obesity (BMI > 35)
4. Pre-existing anatomical deformities (e.g. induced by fracture of the clavicle)
5. Neuropathy (primary: genetic; sekundary: inflammatory, auto-immune, metabolic, toxic)
6. Known disease of the diaphragm
7. Pacemaker or implantable cardioverter-defibrillator (ICD)
Study & Design
- Study Type
- interventional
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Detection of impaired ventilation using electrical impedance tomography (EIT) at 3 points in time: pre-operatively, post-operatively (postanesthesia care unit), after 1 day
- Secondary Outcome Measures
Name Time Method () use of opioids in the post-anaesthesia care unit<br>() NSAID (nonsteroidal anti-inflammatory drugs) use in the 24h after surgery<br>() effectiveness of pain management (numerical rating scale)<br>() quality of block (motor block and/or sensory block)<br>() quantitative grip strength (Grip Strength Meter)