Non complicated acute urinary tract infections (UTI) are among the most common bacterial diseases in the human species. More than 150 million UTIs (non complicated/complicated) are, in fact, annually diagnosed and treated worlwide (Sobel Kaye, 1990; Stamm and Hooton, 1993; Stamm, 1998; Stamm and Norrby, 2001; Foxman, 2002). UTI include cystitis and pyelonephritis (the latter is not discussed in this paper) that occur in individuals without morphological-functional alterations of the excretory tract. This disease is more common in female and/or in menopause patients. 25-50% of the individuals in this population, aged between 20 and 40 years, can be affected by UTI at least once in a lifetime and can be prone to more or less frequent relapses. (Johnson, 1998; Stamm, 2001). Male subjects are less frequently affected by UTI, but when affected, they experience more serious episodes often representing a warning signal of anatomical alterations of the urinary apparatus or the presence of risk factors.......
Risk factors of febrile urinary tract infections following retrograde intrarenal surgery for renal stones
