Renal Arteries Revisited: Anatomy, Pathologic Entities, and Implications for Endovascular Management.

The renal arteries (RAs) are important vessels that usually arise from the abdominal aorta and supply the kidneys; thus, these arteries play a vital role in physiologic functions such as hemofiltration and blood pressure regulation. An understanding of the basis for embryologic development and the frequently variable anatomy of the RAs is necessary to fully appreciate the range of diseases and the implications for procedural planning. Hemorrhage from an RA is relatively common and is typically traumatic or spontaneous, with the latter form often seen in association with underlying tumors or arteriopathy.

Hepatorenal Bypass for Renal Salvage: A Forgotten Option in the Endovascular Era.

Introduction:: In this era of rapidly expanding endovascular techniques, the use of hepatorenal bypass as treatment for a critically compromised renal perfusion has largely been forgotten. This article highlights the benefits of the technique both as a bailout strategy following complications from angioplasty and as a primary treatment in cases deemed unsuitable for endovascular intervention.

Materials And Methods:: Two patients are described whose renal viability was threatened by vascular compromise.