Chvostek's sign (CS) was investigated in 154 patients with seizures (epilepsy, n = 91; non-epileptic event, n = 41; febrile convulsion, n = 19; hypocalcaemic seizure, n = 3). Patients with febrile convulsions or non-epileptic seizures had either negative or mild CS. Marked CS was only found among those with the diagnosis of epilepsy or hypocalcaemia. Normocalcaemic patients had no other signs of neuromuscular hyperexcitability (NMH) while those with hypocalcaemia manifested positive Trousseau's sign (TS) and other signs of NMH. There was no significant correlation between CS and seizure control, epilepsy classification and EEG findings.
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