Decision
History of severe asthma or need for bilateral block?
Yes
- Relative contraindication for interscalene block (risk of phrenic nerve paralysis)
- Consider:
- Supraclavicular nerve block
- Infraclavicular nerve block (Class II)
No
- Perform brachial plexus block:
- Interscalene nerve block
- Supraclavicular nerve block
- Infraclavicular nerve block (Class II)
