What are the complications of acute pyelonephritis?

Complications of acute pyelonephritis include renal papillary necrosis, perinephric abscess and so on. 1. Renal papillary necrosis: renal papillary necrosis, also known as renal medullary necrosis or necrotizing papillitis, is a serious complication of acute pyelonephritis. The blood vessels in the renal medulla produce different degrees of circulatory disorders in the above diseases, and the blood flow is slow and stagnant, resulting in ischemic necrosis of the papilla, and the necrotic tissues of the renal tubules in the renal medulla are discharged from the urine. 2. Perinephric abscess: purulent infection of the perinephric tissues forms abscesses called perinephric abscesses, which are more common unilaterally (often more common on the right side). The lesion is located between the intrinsic renal fascia and the perirenal fascia, and is characterized by Staphylococcus aureus and Escherichia coli, which can also occur after severe urinary tract infections. Patients with acute pyelonephritis need to go to the hospital in time and be treated under the guidance of specialized physicians.

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