LA offers decreased peri-procedural morbidity, mortality, and reduced LOS. LA should be the preferred method for hepatic ablation.

Pyonephrosis is gross accumulation of pus within an obstructed renal collecting system that, if left untreated, can lead to potentially fatal septic shock. Treatment requires urgent decompression coupled with systemic antibiotics. Percutaneous nephrostomy (PCN) placement, first described in 1976 for the treatment of pyonephrosis, is now widely utilized for emergent decompression in these patients. When performed by an experienced interventional radiologist, PCN is a safe procedure with technical success rates of over 96 to 99%. This article will address the clinical presentation of pyonephrosis, and will discuss the indications, technique, complications, and outcomes of emergent PCN placement. Additionally, the expanded indications for PCN placement in nonemergent scenarios will also be described.

How I Do It 212This document was downloaded for personal use only. Unauthorized distribution is strictly prohibited.fluoroscopic anatomy, and to provide a case-based tutorial on the techniques and benefits of IVUS guidance.

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Transjugular intrahepatic portosystemic shunt (TIPS) creation is effective in treating the sequelae of decompensated liver cirrhosis—including medically refractory ascites and variceal bleeding—by decompressing the portal venous system through a manmade portosystemic conduit within the liver. However, the altered physiology in which splenomesenteric blood bypasses intrahepatic portal venous perfusion can precipitate varying degrees of hepatic encephalopathy (HE). While the majority of post-TIPS HE cases can be treated medically, some require escalated management strategies, including endovascular interventions to modify the indwelling TIPS and/or occlude competitive physiologic spontaneous portosystemic shunts. This review article details the epidemiology, risk factors, diagnosis, classification, and treatment of post-TIPS HE.