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  • Title: Selective embolization therapy for intrarenal artery stenosis causing renovascular hypertension: Efficacy and follow-up renal imaging.
    Author: Mishima E, Suzuki T, Seiji K, Akiyama Y, Ota H, Hashimoto J, Takase K, Abe T, Ito S.
    Journal: J Clin Hypertens (Greenwich); 2017 Oct; 19(10):1028-1031. PubMed ID: 28560752.
    Abstract:
    We report the case of a young woman treated with selective renal embolization for renovascular hypertension caused by intrarenal artery stenosis and show follow-up imaging of the treated kidney. An 18-year-old woman had renin-dependent hypertension with intrarenal artery stenosis caused by fibromuscular dysplasia. A middle branch artery was nearly occluded, resulting in segmental renal ischemia with excessive renin secretion. Because our angioplasty attempt for revascularization failed as a result of technical difficulty, we performed selective embolization of the diseased vessel by anhydrous ethanol. The embolization promptly ameliorated hyperreninemia and resistant hypertension without deterioration of renal function. Findings from magnetic resonance imaging showed disappearance of the blood flow in the embolized area corresponding to the ischemic lesion that had been revealed by diffusion-weighted imaging. Thus, selective embolization can be effective in treating renovascular hypertension by intrarenal stenosis for which angioplasty is not feasible. Additionally, renal magnetic resonance imaging is useful for evaluating the causative ischemic lesion and embolized area.
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