From Mortality to Morbidity Control: A Paradigm Shift in Emphysematous Pyelonephritis Management.

Emphysematous pyelonephritis (EPN) is a rare but life-threatening necrotizing infection of the kidney, typically seen in patients with poorly controlled diabetes. Once associated with high mortality and a low threshold for nephrectomy, the current approach to EPN has evolved considerably. We present the case of a 51-year-old diabetic woman with Class IIIA EPN and severe sepsis, successfully managed with a stepwise, minimally invasive strategy. Due to her cardiac comorbidities and unstable condition, she was deemed unfit for immediate internal drainage or surgery. A percutaneous nephrostomy (PCN) was performed under computed tomography (CT) guidance, which stabilized her clinically and allowed time for further intervention. Once her condition improved, a double-J stent was placed to achieve definitive drainage. She recovered completely with preserved renal function, as confirmed on follow-up imaging. This case highlights the importance of early imaging, multidisciplinary decision-making, and the expanding role of PCN not just as a bridging tool but as a key component of definitive therapy in EPN. It reinforces the emerging paradigm shift in EPN management - one that emphasizes morbidity reduction and organ preservation over radical interventions.