OBJECTIVE: To investigate whether quantitative EEG may be useful in differential diagnosis of AD and SVD and to determine the correlation between dementia and abnormalities in EEG. MATERIALS AND METHODS: The group under study was consisted of 62 patients with AD (mean age: 73.6 yrs; M 51%), 31 with SVD (mean age: 75.2 yrs, M 43%) and a control group of 14 healthy subjects (mean age: 69.5 yrs, M 43%). The patients were divided into subgroups of those with mild, moderate and marked dementia. EEG findings were classified using eight-degree scale according to the presence of slow waves, and then quantitative analysis was carried out by calculating the alpha/slow wave power ratios and the mean frequencies in all and some selected derivations. RESULTS: A significant difference between visual EEGs and QEEGs in AD and SVD was found. Only QEEG parameters differed in AD and SVD subgroups with the same degree of cognitive impairment: the mean wave frequencies of waves in temporal derivations in subgroups with mild and moderate dementia and alpha/delta waves power ratio in subgroups with moderate dementia. CONCLUSIONS: Visual EEGs and QEEGs could be used in addition to the differential diagnosis between AD and SVD, but only selected parameters of QEEG could be useful in differentiating between AD and SVD subgroups with the same degree of dementia.
OBJECTIVE: To investigate whether quantitative EEG may be useful in differential diagnosis of AD and SVD and to determine the correlation between dementia and abnormalities in EEG. MATERIALS AND METHODS: The group under study was consisted of 62 patients with AD (mean age: 73.6 yrs; M 51%), 31 with SVD (mean age: 75.2 yrs, M 43%) and a control group of 14 healthy subjects (mean age: 69.5 yrs, M 43%). The patients were divided into subgroups of those with mild, moderate and marked dementia. EEG findings were classified using eight-degree scale according to the presence of slow waves, and then quantitative analysis was carried out by calculating the alpha/slow wave power ratios and the mean frequencies in all and some selected derivations. RESULTS: A significant difference between visual EEGs and QEEGs in AD and SVD was found. Only QEEG parameters differed in AD and SVD subgroups with the same degree of cognitive impairment: the mean wave frequencies of waves in temporal derivations in subgroups with mild and moderate dementia and alpha/delta waves power ratio in subgroups with moderate dementia. CONCLUSIONS: Visual EEGs and QEEGs could be used in addition to the differential diagnosis between AD and SVD, but only selected parameters of QEEG could be useful in differentiating between AD and SVD subgroups with the same degree of dementia.
Authors: Annamaria Painold; Peter Anderer; Anna K Holl; Martin Letmaier; Gerda M Saletu-Zyhlarz; Bernd Saletu; Raphael M Bonelli Journal: J Neurol Date: 2010-12-12 Impact factor: 4.849
Authors: David Wang; Xiao Xue Bai; Shaun C Williams; Shu Cheng Hua; Jong-Won Kim; Nathaniel S Marshall; Angela D'Rozario; Ronald R Grunstein Journal: Sleep Date: 2015-08-01 Impact factor: 5.849
Authors: Elisabeth C W van Straaten; Willem de Haan; Hanneke de Waal; Philip Scheltens; Wiesje M van der Flier; Frederik Barkhof; Ted Koene; Cornelis J Stam Journal: BMC Neurosci Date: 2012-07-24 Impact factor: 3.288
Authors: Claudio Babiloni; Xianghong Arakaki; Hamed Azami; Karim Bennys; Katarzyna Blinowska; Laura Bonanni; Ana Bujan; Maria C Carrillo; Andrzej Cichocki; Jaisalmer de Frutos-Lucas; Claudio Del Percio; Bruno Dubois; Rebecca Edelmayer; Gary Egan; Stephane Epelbaum; Javier Escudero; Alan Evans; Francesca Farina; Keith Fargo; Alberto Fernández; Raffaele Ferri; Giovanni Frisoni; Harald Hampel; Michael G Harrington; Vesna Jelic; Jaeseung Jeong; Yang Jiang; Maciej Kaminski; Voyko Kavcic; Kerry Kilborn; Sanjeev Kumar; Alice Lam; Lew Lim; Roberta Lizio; David Lopez; Susanna Lopez; Brendan Lucey; Fernando Maestú; William J McGeown; Ian McKeith; Davide Vito Moretti; Flavio Nobili; Giuseppe Noce; John Olichney; Marco Onofrj; Ricardo Osorio; Mario Parra-Rodriguez; Tarek Rajji; Petra Ritter; Andrea Soricelli; Fabrizio Stocchi; Ioannis Tarnanas; John Paul Taylor; Stefan Teipel; Federico Tucci; Mitchell Valdes-Sosa; Pedro Valdes-Sosa; Marco Weiergräber; Gorsev Yener; Bahar Guntekin Journal: Alzheimers Dement Date: 2021-04-15 Impact factor: 16.655