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Continuous thoracic epidural analgesia is frequently used for abdominal and thoracic surgical procedures. High epidural blockade due to cephalad spread of local anaesthetic is a rare complication, with a reported incidence of 1.4% [1]. Clinical presentation is variable, and can include bradycardia, hypotension, brachial plexus paresis and phrenic nerve blockade. Due to sympathetic blockade at the C8–T1 spinal levels, Horner’s syndrome characterised by unilateral miosis, enophthalmos, palpebral ptosis, anhidrosis and, occasionally, ipsilateral facial flushing can develop [2].A 30‐year‐old man developed Horner’s syndrome following T8–T9 epidural placement for extensive abdominal surgery. On postoperative day 1, he developed right‐sided Horner’s syndrome (Fig. 1a) with ipsilateral upper extremity paraesthesia and uneven sensory block. Following recognition, the epidural infusion rate was decreased, patient‐controlled bolus locked and the catheter pulled back. On postoperative day 3, he developed Horner’s syndrome on the left, with full resolution contralaterally (Fig. 1b). Apart from transient right upper extremity paraesthesia occurring with epidural blousing, he did not experience other symptoms related to high epidural blockade. Of note, the patient wore an abdominal binder, which, in theory, could increase epidural pressure promoting rostral local anaesthetic spread. A similar mechanism has been suggested in labouring obstetric patients with lumbar epidurals [3].1Figure(a) Postoperative day 1;
Anaesthesia Reports – Wiley
Published: Jan 1, 2022
Keywords: epidural analgesia: complications; parasympathetic nervous system: ganglia; regional anaesthesia: mechanism of injury
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