2010
DOI: 10.1590/s1677-54492010000200008
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Ruptura dos vasa vasorum e hematoma intramural da aorta: um paradigma em mudança

Abstract: A ruptura dos vasa vasorum tem sido reconhecida como uma das causas do hematoma intramural da aorta há 90 anos. Esta breve revisão apresenta sistematicamente a fisiologia desses vasos e o seu papel na fisiopatologia das alterações parietais da aorta que ocorrem na hipertensão arterial, na arteriosclerose e na síndrome aórtica aguda. A hipótese defendida aqui é a de que a ruptura dos vasa vasorum ocorre como um fenômeno secundário e não como um dos fatores causais na fisiopatologia do hematoma intramural.

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Cited by 10 publications
(2 citation statements)
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“…10 Occlusion of the vasa vasorum and/or intramural hematoma are considered the most important factors in this type of aortic condition. 22 The pseudoaneurysm in the case described here was possibly formed by the rupture of a small, localized, saccular aneurysm, with contained blood leakage. Reports in the literature of spontaneous pseudoaneurysms of the aorta are rare, 2 and anastomotic pseudoaneurysms after open reconstruction of the aorta are more common.…”
Section: Discussionmentioning
confidence: 73%
“…10 Occlusion of the vasa vasorum and/or intramural hematoma are considered the most important factors in this type of aortic condition. 22 The pseudoaneurysm in the case described here was possibly formed by the rupture of a small, localized, saccular aneurysm, with contained blood leakage. Reports in the literature of spontaneous pseudoaneurysms of the aorta are rare, 2 and anastomotic pseudoaneurysms after open reconstruction of the aorta are more common.…”
Section: Discussionmentioning
confidence: 73%
“…The difference in elastic modulus between these two regions sets up a difference in shear force at the interface. [13][14][15][16][17][18][19] In the case of classical dissection, the tendency is for the true lumen to be compressed, because its external portion is more rigid. This change to the elastic modulus can also explain why the false lumen (less elastic and thinner) expands over time.…”
Section: Intramural Hematoma and The Role Of The Vasa Vasorummentioning
confidence: 99%