Evaluation of ketogenic diet efficacy in patients with refractory epilepsy

Abstract

A comprehensive, computer-based, online search ofthe world literature on the 3 DTCA was performed(MEDLINE, LILACS, EMBASE, COCHRANE LIBRARY). Allprobable terms for 3DTCA were determined from ini-tial experience with the literature on the topic. Theseincluded “CT angiography”, “computerized tomograph-ic angiography”, “computerized tomography angiogra-phy”, “computer tomography angiography”, “comput-er tomographic angiography”, “three dimensional com-puted angiography”; the relevant terms used were“subarachnoid hemorrhage” e “aneurysm(s)”. The ini-tial criteria for inclusion in the systematic review werestudy design and examination methodology, imagereview process and presentation of result data.The results demonstrated that the 26 studies iden-tified by using this search, with total of the 1.483 intracra-nial aneurysms diagnosed through the digital subtrac-tion angiography and 1.391 (94%) of these diagnosedat the 3DCTA and the smaller size was 2mm. The intra-cavernous carotid aneurysms were the majority of thefalse negative results. In conclusion, the sensitivity of the 3DCTA was the95% as 100% by 63% these studies and the specificitywas the 95% as 100% by 50% these studies. The small-er size of the intracranial aneurysms diagnosed was 2mm, with the false negative cases more frequents werethe intracavernous carotid aneurysms(25%) because ofthe proximity with bone structures; the middle cerebralartery aneurysms (19%) because of the presence the loopsand posterior communicating artery aneurysms becauseof the infundibular dilatation. KEY WORDS:cerebral aneurysms, angiotomography.