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An event is serious (FDA MedWatch definition) when the patient outcome is:

* death

* life-threatening

* hospitalisation

* disability

* congenital anomaly

* requires intervention to prevent permanent impairment or damage

A 4-month-old male infant developed generalised tonic-clonic seizure complicated by cardiac arrest secondary to a severe intoxication to local anaesthesia with lidocaine. The baby underwent bilateral dorsal penile nerve block with lidocaine [dosage not stated] for circumcision in a non-hospital setting. He developed generalised tonic-clonic seizure complicated by cardiac arrest secondary to the severe intoxication to local anaesthetic treatment with lidocaine [time to reactions onsets and outcomes not stated].

Author comment:"We report the case of a 4-month-old infant who presented with generalized tonic-clonic seizure complicated by cardiac arrest secondary to a severe intoxication to local anesthesia.