Diaphragm‐sparing effect of the infraclavicular subomohyoid block vs low volume interscalene block. A randomized blinded study

Background Both low volume interscalene and infraclavicular‐subomohyoid blocks were suggested to provide shoulder analgesia with low risk of phrenic nerve block. The aim of this study was to compare the frequency of the phrenic nerve block between these two techniques. Method Seventy‐two patients sc...

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