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The investigator will compare Costoclavicular approach of infraclavicular block and supraclavicular block. Especially, the incidence of phrenic nerve palsy and the quality of block.
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.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Costoclavicular block | For anesthesia, this group of patients will be received ultrasound guided costoclavicular block |
| |
| Supraclavicular block | For anesthesia, this group of patients will be received ultrasound guided supraclavicular block |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Costoclavicular block | Procedure | Group C for costoclavicular block Group S for supraclavicular block |
|
| Measure | Description | Time Frame |
|---|---|---|
| Diaphragm palsy | 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% | 30 min |
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Inclusion Criteria:
Exclusion Criteria:
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Patients scheduled for surgery of hand or forearm
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| Name | Affiliation | Role |
|---|---|---|
| In Kyong Yi, MD | Ajou University School of Medicine | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Ajou university school of medicine | Suwon | Gyeonggi-do | 16377 | South Korea |
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