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Morphohistological analysis of the prevalence and distribution of atheroma in the abdominal aorta and its branches: a cadaveric study / Análise morfo-histológico sobre prevalência e distribuição de ateroma na aorta abdominal e em seus ramos: estudo em cadáveres
Kumar, Naveen; Aithal, Ashwini P; Verma, Seemithr.
  • Kumar, Naveen; Manipal Academy of Higher Education. Melaka Manipal Medical College (Manipal Campus). Manipal. IN
  • Aithal, Ashwini P; Manipal Academy of Higher Education. Melaka Manipal Medical College (Manipal Campus). Manipal. IN
  • Verma, Seemithr; Manipal Academy of Higher Education. Kasturba Medical College. Manipal. IN
J. vasc. bras ; 20: e20210014, 2021. tab, graf
Article in English | LILACS | ID: biblio-1279391
ABSTRACT
Abstract Background Aneurysms and atheromatous processes are prominent pathological features that are commonly associated with significant morbidity and mortality. Objectives This cadaveric study was conducted to evaluate the morphometric and histological aspects of atheromatous plaque formation in abdominal aortas and their branches and their associated morphological variations, if present, characterized by loops, kinking, or tortuosity. Methods The study was performed using 30 human cadavers (approx. 65-75 years). Frequency of occurrence of calcified plaques in the abdominal aorta and its branches and their morphometric measurements were noted and histological features were observed with the aid of Hematoxylin & Eosin staining. Results Variations in the abdominal aorta and the common iliac artery were observed in 16.6% of specimens. Atheromatous plaque formation was seen in 2 specimens (1 specimen was associated with kinking) while in 3 other specimens only variation in normal structure (kinking/ tortuous artery) was observed. Histological analysis showed foamy macrophages and dense calcification, giving an atheromatous appearance. Conclusions Cadaveric reports of the location, nature, and degree of plaque formation in the abdominal aorta and its branches are extremely important in clinical settings and for choosing treatment options.
RESUMO
Resumo Contexto Aneurismas e processos ateromatosos são características patológicas perceptíveis que costumam estar associadas a morbidade e mortalidade significativas. Objetivos Este estudo em cadáveres teve como objetivo avaliar os aspectos morfométricos e histológicos da formação de placa ateromatosa na aorta abdominal e em seus ramos com suas subsequentes variações morfológicas caracterizadas por enrolamentos, acotovelamentos ou tortuosidades, se presentes. Métodos O estudo foi realizado com 30 cadáveres humanos (aproximadamente 65-75 anos). Foi descrita a frequência de ocorrência de placas calcificadas na aorta abdominal e em seus ramos com as respectivas medidas morfométricas e características histológicas com auxílio da coloração por hematoxilina e eosina. Resultados Variações na aorta abdominal e na artéria ilíaca comum foram observadas em 16,6% dos espécimes. A formação de placa ateromatosa foi observada em dois espécimes (um espécime foi associado a acotovelamento), enquanto em outros três espécimes houve apenas variação na estrutura normal (acotovelamento/artéria tortuosa). A análise histológica mostrou macrófagos espumosos e calcificação densa, o que gerou uma impressão ateromatosa. Conclusões Os estudos em cadáveres sobre localização, natureza e grau de formação de placa na aorta abdominal e em seus ramos são extremamente importantes para os cenários clínicos e as opções de tratamento.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Aorta, Abdominal / Plaque, Atherosclerotic Type of study: Prevalence study / Risk factors / Screening study Limits: Aged / Humans / Male Language: English Journal: J. vasc. bras Journal subject: Cardiology Year: 2021 Type: Article Affiliation country: India Institution/Affiliation country: Manipal Academy of Higher Education/IN

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Full text: Available Index: LILACS (Americas) Main subject: Aorta, Abdominal / Plaque, Atherosclerotic Type of study: Prevalence study / Risk factors / Screening study Limits: Aged / Humans / Male Language: English Journal: J. vasc. bras Journal subject: Cardiology Year: 2021 Type: Article Affiliation country: India Institution/Affiliation country: Manipal Academy of Higher Education/IN