Why the study?
What are the risk factors for vasovagal events in patients undergoing shoulder arthroscopy in the sitting position with interscalene block?
Population
116 patients who underwent shoulder arthroscopy in the sitting position with interscalene block (ISB)
Design
Cohort
Authors
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Beta-blocker use was associated with fewer vasovagal events; hypothesis-generating for prophylaxis targeting epinephrine-driven Bezold-Jarisch reflex in shoulder arthroscopy.
What are the risk factors for vasovagal events in patients undergoing shoulder arthroscopy in the sitting position with interscalene block?
Vasovagal events during shoulder arthroscopy in the sitting position may be mediated by the Bezold-Jarisch reflex, potentially driven by circulating epinephrine levels and mitigated by beta-adrenergic blockers.
D’Alessio et al. (1995) studied this question.
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