Phrenic Nerve Paralysis
Conditions
Keywords
costoclavicular block
Brief summary
The investigator will compare Costoclavicular approach of infraclavicular block and supraclavicular block. Especially, the incidence of phrenic nerve palsy and the quality of block.
Detailed description
Costoclavicular brachial plexus block is a recently developed approach of infraclavicular brachial plexus block. Using ultrasound, all of 3 cords are well visible in single plane. Compared to conventional infraclavicular block, it needs smaller amount of local anesthetics. Supraclavicular brachial plexus block is known as spinal anesthesia of upper extremities. It provides fast and good quality of anesthesia and analgesia. But some studies showed that there are over 50% of phrenic nerve palsy in supraclavicular block. In this study, the investigator will compare phrenic nerve palsy incidence and block quality between Costoclavicular block and supraclavicular block using ultrasound.
Interventions
PROCEDURECostoclavicular block
Group C for costoclavicular block Group S for supraclavicular block
Sponsors
Ajou University School of Medicine
Study design
Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
19 Years to 65 Years
Healthy volunteers
No
Inclusion criteria
* ASA I or II * Scheduled for surgery of hand or forearm
Exclusion criteria
* Patient refusal * Neuromuscular disease * Pregnancy * Previous history of surgery of periclavicular region * Nerve injury history * Bleeding tendency * Allergy to local anesthetics * Other contraindication of regional anesthesia
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Diaphragm palsy | 30 min | Using M-mode of ultrasound, compare diaphragm movement pre-block and 30min after block Paralysis : reduced movement more than 75% or paradoxical movement on sniffing Paresis : 25\ 75% movement Normal : reduced less than 25% |
Countries
South Korea
Outcome results
None listed