This review article notes that placebo-controlled studies have shown positive results concerning the use of pulsed magnetic field therapy in the treatment of secondary chronic pyelonephritis.
V.A. Kiyatkin, “Pulsed Magnetic Field in Therapy of Patients with Secondary Chronic Pyelonephritis,” Second World Congress for Electricity and Magnetism in Biology and Medicine, 8-13 June 1997, Bologna, Italy.