Endovascular Aneurysm Repair for a Patient with Horseshoe Kidney and the Importance of Watershed Sign and Volumetry by Preoperative Contrast-Enhanced Computed Tomography

We report a case of endovascular aneurysm repair (EVAR) in a patient with horseshoe kidney (HSK) in whom preoperative contrast-enhanced (CE) computed tomography (CT) showed watershed sign. This sign enabled prediction of postoperative renal function by accurate renal volumetry. A 75-year-old man wit...

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Detalles Bibliográficos
Autores principales: Handa, Kazuma, Sakamoto, Tomohiko, Kakizawa, Yumi, Kitahara, Mutsunori, Fukui, Shinya, Shirakawa, Yukitoshi, Nishi, Hiroyuki
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Japanese College of Angiology / The Japanese Society for Vascular Surgery / Japanese Society of Phlebology 2021
Materias:
Case Report
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8752936/
https://www.ncbi.nlm.nih.gov/pubmed/35082949
http://dx.doi.org/10.3400/avd.cr.21-00068
Descripción
Sumario:We report a case of endovascular aneurysm repair (EVAR) in a patient with horseshoe kidney (HSK) in whom preoperative contrast-enhanced (CE) computed tomography (CT) showed watershed sign. This sign enabled prediction of postoperative renal function by accurate renal volumetry. A 75-year-old man with HSK and a 59-mm abdominal aortic aneurysm was referred for treatment. Preoperative CECT showed watershed lines at the margin of the isthmus, which was perfused by the accessory renal arteries. Using this sign, we calculated the accurate volume of the isthmus, which was 24.5% of the total parenchyma. EVAR was safely performed without renal dysfunction.

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