[Postoperative cystitis in children].

Operative intervention on the urinary bladder in children entails postoperative reactive cystitis. Biopsies of urinary bladder mucosa were studied morphologically. Basing on these morphological findings and clinical evidence, three leading variants of the mucosa changes were distinguished: focal squamous cell metaplasia; excess of the lymphoid tissue and lymphangiectasia; hemangiectasia. These morphological changes aggravate the course of postoperative cystitis. UHF-therapy and magnetic-laser radiation beginning postoperative day 4 and 7, respectively, reduce inflammation developing in postoperative cystitis. This indicates effectiveness of the above combined therapy which can be also used for prevention of acute inflammation episodes in postoperative period.