Πέμπτη 16 Νοεμβρίου 2017

Pulse oximeter perfusion index for assessment of brachial plexus block: a holy grail or a design fail?

Editor—I read with interest the recently published article by Abdelnasser and colleagues1 regarding prediction of successful supraclavicular brachial plexus block using the pulse oximeter perfusion index (PI). The article represents an addition to other articles evaluating the usefulness of the pulse oximeter perfusion index in objective assessment of brachial plexus blocks.2–4

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