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Width of sulcus and thickness of gyrus in patients with cerebral atherosclerosis: a new tool for the prevention of vascular cognitive impairment
Ramalho, Luciana Santos; Silveira, Luciano Alves Matias da; Fonseca, Bárbara Cecílio; Félix, José Eduardo Reis; Morais, Lourimar José; Soares, Maria Helena; Ferraz, Mara Lúcia Fonseca; Teixeira, Vicente de Paula Antunes; Pereira, Sanívia Aparecida Lima.
  • Ramalho, Luciana Santos; Universidade Federal do Triângulo Mineiro. Postgraduate Course Health Sciences. Uberaba. BR
  • Silveira, Luciano Alves Matias da; Universidade Federal do Triângulo Mineiro. Department of Surgery. Uberaba. BR
  • Fonseca, Bárbara Cecílio; UFTM. Uberaba. BR
  • Félix, José Eduardo Reis; Universidade Federal do Triângulo Mineiro. Department of Radiology. Uberaba. BR
  • Morais, Lourimar José; Universidade Federal do Triângulo Mineiro. Uberaba. BR
  • Soares, Maria Helena; Universidade Federal do Triângulo Mineiro. Uberaba. BR
  • Ferraz, Mara Lúcia Fonseca; Universidade Federal do Triângulo Mineiro. Postgraduate Course Health Sciences. Uberaba. BR
  • Teixeira, Vicente de Paula Antunes; Universidade Federal do Triângulo Mineiro. Institute of Biological and Natural Sciences. Uberaba. BR
  • Pereira, Sanívia Aparecida Lima; Universidade Federal do Triângulo Mineiro. Postgraduate Course Health Sciences. Uberaba. BR
Rev. Assoc. Med. Bras. (1992) ; 64(8): 684-691, Aug. 2018. graf
Article in English | LILACS | ID: biblio-976848
ABSTRACT
SUMMARY BACKGROUND AND PURPOSE Cerebral atherosclerosis is the main cause of lesions that contribute to vascular cognitive impairment and vascular dementia, followed by arteriosclerosis of small vessels and cerebral amyloid angiopathy. The purpose of this study was to compare the post-mortem radiological alterations of autopsied adults with the macroscopic alterations in the posterior region of these brains in order to establish a relationship between the two forms of analysis and to discuss the relevance of the prevention of vascular cognitive impairment in patients with encephalic atherosclerosis. MATERIALS AND METHODS Thirteen brains were analysed macroscopically to assess the degree of atherosclerosis of the basilar and the posterior cerebral arteries. The patients were autopsied in the Subject of General Pathology at General Hospital of Triângulo Mineiro Federal University in Uberaba, state of Minas Gerais, Brazil. The qualitative analysis of atherosclerosis was performed with classification into mild, moderate or severe. In the posterior region of the brains, width of sulcus and thickness of gyrus were measured by macroscopic analysis and by tomographic analysis. RESULTS AND CONCLUSIONS There was a decrease in calcarine sulcus width and an increase in medial temporal occipital gyrus thickness in patients with a higher degree of atherosclerosis, macroscopically and in tomography, respectively. Low oxygenation caused by atherosclerosis probably leads to an encephalic parenchyma inflammation that causes microglial cells hypertrophy provoking increase in the gyrus thickness and decrease in the sulcus width, as observed in the present study.
RESUMO
RESUMO INTRODUÇÃO E OBJETIVO A aterosclerose cerebral é a principal causa de lesões que contribuem para o comprometimento cognitivo vascular (CCV) e demência vascular, seguida da arteriosclerose de pequenos vasos e da angiopatia amiloide cerebral. Sendo assim, este estudo comparou as alterações radiológicas post mortem de adultos autopsiados com as alterações macroscópicas na região posterior desses encéfalos a fim de estabelecer uma relação entre as duas formas de análise e discutir sobre a relevância da prevenção do CCV em pacientes com aterosclerose encefálica. MATERIAL E MÉTODOS Treze encéfalos foram analisados macroscopicamente para avaliar o grau de aterosclerose das artérias basilar e cerebral posterior. Os pacientes foram autopsiados na disciplina de Patologia Geral no HC-UFTM em Uberaba, Minas Gerais, Brasil. A análise qualitativa da aterosclerose foi realizada com as classificações discreta, moderada ou acentuada. A espessura dos giros e a largura dos sulcos na região posterior dos encéfalos foram analisadas macroscopicamente e por tomografia computadorizada. RESULTADOS E CONCLUSÃO Houve diminuição na largura do sulco calcarino e aumento na espessura do giro occipital temporal medial de acordo com o aumento do grau de aterosclerose macroscopicamente e por tomografia, respectivamente. A baixa oxigenação causada pela aterosclerose provoca a inflamação do parênquima encefálico, provavelmente levando à hipertrofia das células da micróglia e ao consequente aumento dos giros e estreitamento dos sulcos, como observado no presente estudo.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Temporal Lobe / Dementia, Vascular / Intracranial Arteriosclerosis / Cognitive Dysfunction / Occipital Lobe Type of study: Etiology study / Qualitative research Limits: Aged / Aged80 / Female / Humans / Male Language: English Journal: Rev. Assoc. Med. Bras. (1992) Year: 2018 Type: Article Affiliation country: Brazil Institution/Affiliation country: UFTM/BR / Universidade Federal do Triângulo Mineiro/BR

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Full text: Available Index: LILACS (Americas) Main subject: Temporal Lobe / Dementia, Vascular / Intracranial Arteriosclerosis / Cognitive Dysfunction / Occipital Lobe Type of study: Etiology study / Qualitative research Limits: Aged / Aged80 / Female / Humans / Male Language: English Journal: Rev. Assoc. Med. Bras. (1992) Year: 2018 Type: Article Affiliation country: Brazil Institution/Affiliation country: UFTM/BR / Universidade Federal do Triângulo Mineiro/BR