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Acute respiratory complications of an interscalene brachial plexus block include ipsilateral phrenic nerve and recurrent laryngeal nerve palsies. A 71-year-old woman who had undergone a total thyroidectomy for papillary carcinoma 35 years ago was administered a right interscalene brachial plexus block for a shoulder hemi-arthroplasty. Subsequently she developed acute respiratory distress associated with marked stridor secondary to an acute right vocal cord palsy, which was superimposed on what was assumed to be a preexisting left-sided vocal cord palsy. On extubation the patient was noted to develop stridor again necessitating reintubation and tracheostomy was performed two weeks later. The vocal cord palsies failed to resolve over the subsequent 18-month follow-up. We describe this case to highlight the significant risk of this procedure in patients with preexisting or suspected contralateral vocal cord palsy.

Bilateral Vocal Cord Palsy following Interscalene Brachial Plexus Nerve Block