Abstract
Objectives: The aim of this study was to establish the relationship between background amplitude and interictal abnormalities in routine electroencephalography (EEG). Methods: This retrospective audit was conducted between July 2006 and December 2009 at the Department of Clinical Physiology at Sultan Qaboos University Hospital (SQUH) in Muscat, Oman. A total of 1,718 electroencephalograms (EEGs) were reviewed. All EEGs were from patients who had been referred due to epilepsy, syncope or headaches. EEGs were divided into four groups based on their amplitude: group one ≤20 μV; group two 21–35 μV; group three 36–50 μV, and group four >50 μV. Interictal abnormalities were defined as epileptiform discharges with or without associated slow waves. Abnormalities were identified during periods of resting, hyperventilation and photic stimulation in each group. Results: Te mean age ± standard deviation of the patients was 27 ± 12.5 years. Of the 1,718 EEGs, 542 (31.5%) were abnormal. Interictal abnormalities increased with amplitude in all four categories and demonstrated a significant association (P
| Original language | English |
|---|---|
| Pages (from-to) | e473-e477 |
| Journal | Sultan Qaboos University Medical Journal |
| Volume | 14 |
| Issue number | 4 |
| Publication status | Published - Nov 1 2014 |
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Keywords
- abnormalities
- Electroencephalography
- Epilepsy
ASJC Scopus subject areas
- Medicine(all)
Cite this
The correlation between electroencephalography amplitude and interictal abnormalities : Audit study. / Al-Rawas, Sami F.; Poothrikovil, Rajesh P.; Abdelbasit, Khidir M.; Delamont, Robert S.
In: Sultan Qaboos University Medical Journal, Vol. 14, No. 4, 01.11.2014, p. e473-e477.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The correlation between electroencephalography amplitude and interictal abnormalities
T2 - Audit study
AU - Al-Rawas, Sami F.
AU - Poothrikovil, Rajesh P.
AU - Abdelbasit, Khidir M.
AU - Delamont, Robert S.
PY - 2014/11/1
Y1 - 2014/11/1
N2 - Objectives: The aim of this study was to establish the relationship between background amplitude and interictal abnormalities in routine electroencephalography (EEG). Methods: This retrospective audit was conducted between July 2006 and December 2009 at the Department of Clinical Physiology at Sultan Qaboos University Hospital (SQUH) in Muscat, Oman. A total of 1,718 electroencephalograms (EEGs) were reviewed. All EEGs were from patients who had been referred due to epilepsy, syncope or headaches. EEGs were divided into four groups based on their amplitude: group one ≤20 μV; group two 21–35 μV; group three 36–50 μV, and group four >50 μV. Interictal abnormalities were defined as epileptiform discharges with or without associated slow waves. Abnormalities were identified during periods of resting, hyperventilation and photic stimulation in each group. Results: Te mean age ± standard deviation of the patients was 27 ± 12.5 years. Of the 1,718 EEGs, 542 (31.5%) were abnormal. Interictal abnormalities increased with amplitude in all four categories and demonstrated a significant association (P
AB - Objectives: The aim of this study was to establish the relationship between background amplitude and interictal abnormalities in routine electroencephalography (EEG). Methods: This retrospective audit was conducted between July 2006 and December 2009 at the Department of Clinical Physiology at Sultan Qaboos University Hospital (SQUH) in Muscat, Oman. A total of 1,718 electroencephalograms (EEGs) were reviewed. All EEGs were from patients who had been referred due to epilepsy, syncope or headaches. EEGs were divided into four groups based on their amplitude: group one ≤20 μV; group two 21–35 μV; group three 36–50 μV, and group four >50 μV. Interictal abnormalities were defined as epileptiform discharges with or without associated slow waves. Abnormalities were identified during periods of resting, hyperventilation and photic stimulation in each group. Results: Te mean age ± standard deviation of the patients was 27 ± 12.5 years. Of the 1,718 EEGs, 542 (31.5%) were abnormal. Interictal abnormalities increased with amplitude in all four categories and demonstrated a significant association (P
KW - abnormalities
KW - Electroencephalography
KW - Epilepsy
UR - http://www.scopus.com/inward/record.url?scp=84907978025&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84907978025&partnerID=8YFLogxK
M3 - Article
VL - 14
SP - e473-e477
JO - Sultan Qaboos University Medical Journal
JF - Sultan Qaboos University Medical Journal
SN - 2075-051X
IS - 4
ER -