Comparsion Efficasy of Ear Pyelogram versus Dye Contract Pyelogram in PCNL

Access to the collecting system is the first step in percutaneous interventions such as cutaneous nephrolithotomy (PCNL) and endopyelotomy. Usually «using air or contrast medium injected into the pelvis and Colle ''system which is obtained under fluoroscopic guidance. The purpose of this study was to compare the efficacy and adverse effects of air Pylogram with contrast in the PCNL procedure. In this clinical trial، 100 patients older than 18 years old with renal or upper ureteral stones and upper ureter since undergoing PCNL were randomly divided into two groups. In all patients undergoing spinal anesthesia، ureteral catheter F5 was placed in supine position and the patient was returned to the prone position. The control group was injected with15-40 ml of contrast material through the catheter to represent the pelvis and Colle under fluoroscopic guidance، the intervention group were injected with 40-15 ml of room air in a similar way. Then the standard PCNL procedures were performed in all patients. Demographic characteristics and intraoperative and postoperative variables such as access time to system، radiation، hypoxia، and cardiovascular and pulmonary complications in the two groups were compared. The data included descriptive statistics، frequency، mean، standard deviation were analyzed by Student''s t-test. The results showed the the age، sex and mean stone size were similar in both groups. Access time control systems in control group was 7/96±1/62 minutes and in the intervention group was 7/34±1/44 minutes (P=0/049) respectivly. In control group The radiation time was 1/06±0/30 min، and in the intervention group was 0/95±0/24 min (P=0/048). Hypoxia، pulmonary and cardiovascular complications has no seen in two groups. in order to represent of the pelvis and Colle in ''PCNL، the use of room air is feasible، safe and effective، time and duration of radiation have less access to the system and does not charge and can be a good alternative for Pylogram.