Key result
Upper-arm block anesthesia is linked to less supplemental anesthesia need despite a ~20% failure rate.
Population
Patients undergoing upper-arm block procedures (n=206 procedures)
Design
Case_series
Authors
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Upper-arm blocks may reduce supplemental anesthesia needs in select cases; leaves open confirmation via randomized trials before practice change.
Upper-arm block anesthesia has a 20% failure rate but is considered safe and reduces the need for supplemental anesthesia even when it fails.
Leahey et al. (1964) studied this question. Upper-arm block anesthesia had a 20% failure rate in 206 procedures, but its safety and ability to markedly decrease the need for supplemental anesthesia strongly recommend it.
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