A clinical case of asymptomatic chronic pyelonephritis against the background of decompensation of type 2 diabetes mellitus is presented. The patient sought medical attention with clinical manifestations of diabetes mellitus, but did not indicate symptoms of pyelonephritis. Signs of the inflammatory process in the kidneys were detected only in the hospital based on the results of laboratory tests. In the described multimorbid condition, the presence of hyperglycemia served as a substrate for the accelerated growth of Escherichia coli bacteria, which caused an exacerbation of chronic urinary tract infection in the patient. In addition, diabetes mellitus contributed to the development of virulence and polyresistance of microflora to antibiotics. The complexity of stopping pyelonephritis in this clinical case necessitated constant monitoring and correction of the antibacterial therapy effectivenes. The initially prescribed antibiotic Ceftriaxone was replaced with Cefoperazone + Sulbactam. Since our patient with severe multimorbid pathology had a highly variable glycemic profile, we adjusted antibacterial therapy in parallel with hypoglycemic therapy. As a result, we noted that compensation of diabetes mellitus with normalization of glycemia contributed to the restoration of immune system function and weakening of the inflammatory process in the kidney with subsequent relief of the active phase of chronic pyelonephritis.
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