The Preventive Infection Role of One Week Antibiotics Before Minimally Invasive Upper Tract Lithotomy

Minimally invasive upper tract lithotomy is currently a common operation method on treatment of urinary tract stones, but the postoperative complication urinary tract infection or urinary sepsis has turned into a serious threat to the patient's life, when severe, can result in a higher death rate.Although more the more importance were attached to, an effective prevention measures still have not been found. Among Urinary calculi, the higher rates of infection stone resulted in a higher incidence of postoperative urinary tract infection. The conventional postoperative prophylaxis medicine was the use of antimicrobial drugs half an hour before surgery.Foreign studies had shown that continuous preoperative one week use of nitrofurantoin can significantly reduce the incidence of urinary sepsis. So the investigators assume that preoperative extended use time of prophylaxis antibiotic may reduce the incidence of urinary tract infection or urinary sepsis. This study uses a computerized random method. According to preoperative use of different antimicrobial drug or treatment, all patients are randomly divided into five groups, namely levofloxacin 3days group,levofloxacin 7days group, nitrofurantoin 3days group,nitrofurantoin 7days group and cefuroxime group.The levofloxacin group receives levofloxacin 0.5g, qd, po, the nitrofurantoin group was given oral nitrofurantoin 100mg, tid, po.to explore the better antibiotics types, medication timing and duration of treatment to prevent postoperative infection after minimally invasive upper tract lithotomy, so as to reduce the incidence of postoperative urinary tract infection or sepsis.