Introduction:
Brachial plexus blocks are frequently practiced and safe mode of anaesthsia. ﻿Although minor complications may occur, major complications are a rarity. However, we report a rare case of prolonged supraclavicular brachial plexus block which required almost 4 months to recover without a perceivable cause.
Case presentation:
A 22﻿-year﻿-old gentleman posted for open reduction and internal fixation of both﻿ forearm bones was administered an ultrasound﻿-guided supraclavicular brachial plexus block. The intra-operative period was uneventful. However, the block persisted for a very prolonged period of time. All perceivable causes were ruled out. A total of 19 weeks was required for the entire block to regress with no residual neurological deficits thereafter.
Conclusion:
Although peripheral neuropathies are known complications of peripheral nerve blocks, such a prolonged brachial plexus block is a rare event. The only plausible cause for the patient's condition could have been the prolonged drug effect; however, it has been rarely documented.