A sustained paroxysmal abnormality persisting after the photic stimulation was present in 6 epileptic patients. (unifesp.br)
Photoparoxysmal discharges induced by photic stimulation are common in untreated young patients. (medilens.co.in)
Epileptiform3
Abnormalities of background cerebral rhythms, focal slow activity or regional attenuation are much less specific than epileptiform activity, although they can indicate localised structural pathology underlying the seizure disorder, or diffuse cortical dysfunction as in symptomatic generalised epilepsies. (bmj.com)
Some types of epileptiform phenomena-3 per second spike wave discharge, hypsarrhythmia, and generalised photoparoxysmal response-are strongly correlated with clinical epilepsy, whereas focal sharp waves in centro-temporal or occipital regions have moderate association with clinically active epilepsy. (bmj.com)
Electroencephalogram showed generalised epileptiform abnormalities with photoparoxysmal responses, including at low frequencies (1 Hz). (bmj.com)
Chronic1
By their assessment, most abnormalities are chronic, are expected, or do not affect management or postoperative outcome. (blogspot.com)
Response2
Sixty-five outpatients with photoparoxysmal response (PPR) during routine EEG were studied. (unifesp.br)
We studied PR- VEPs in 32 patients with photoparoxysmal response. (tjn.org.tr)
Normal1
2. MRI scan is often performed to exclude brain abnormalities, although results are typically normal. (medilens.co.in)
Seizures2
Moreover, a recent study demonstrated that in patients with a history of photosensitive seizures, abnormalities to patterned intermittent photic stimulation are more common than those to diffuse intermittent photic stimulation and, although consistent with the clinical history of photosensitivity, are not a reliable predictor of the patient being poorly controlled. (medscape.com)
Clinical photoconvulsive seizures or subclinical photoparoxysmal responses occur when an individual is exposed to intermittent light stimulation (ILS), consisting of flashes of light of a particular frequency. (medscape.com)