Urine pH, urinary citrate level, side effect and cost were noted. After one week of wash-off time the participants were crossed over. Parameters were noted again. Statistical analysis was done. Results: Male: female ratio being 13:1. Mean age was 27.5 years. Each milliliter of lemon juice provided, on average, 0.230.06mEq of citrate. Calculated aver- age requirement of concentrated lemon juice per head was 259.3 ml. One partici- pant withdrew from lemon group because of side effect: severe dyspepsia. Baseline pH was 6.40.44 which increased to 7.10.65 with lemon juice and to 7.70.65 with potassium citrate. Baseline citrate was 216137.6 mg/day which in- creased to 224123.49 with lemon juice and to 24072.7 with potassium citrate (p=0.44). Cost per day in lemon juice group was 45.188.4 rupees while it was 23.33.17 rupees in the potassium citrate group (p0.001). Observed side effects with lemon juice were dyspepsia, nausea and dysguesia which occurred in 12 par- ticipants. Gastrointestinal upset was the main side effect in potassium citrate group, which occurred in 2 participants. Conclusion: Lemon juice is not as effec- tive as potassium citrate in increasing uri- nary citrate level. It is also not palatable and cost-effective in the required dose. UP-03.071 A Prospective Randomized Clinical Trial To Compare the Clinical Efficacy and Tolerability of Potassium Citrate Versus Phytotherapy in Medical Management of Minimal Burden (Less Than 8mm) Nephrolithiasis Singh I, Bishnoi I, Agarwal V, Bhatt S University College of Medical Sciences (University of Delhi) & GTBH, New Delhi, India Introduction and Objectives: Medical therapy for nephrolithiasis includes stone manipulation and use of plant extracts (phy- totherapy). The benefit of potassium citrate in the dissolution of some renal stones is proven though with certain limitations. Sci- entists have explored the use of herbal med- icines in nephrolithiasis, with some experi- mental studies and human trials showing good results. Plant extracts with renal anti- lithogenic effects includes lupeol (Crataeva nurvala) that appears to act by inhibiting crystallization, inducing diuresis and stone expulsion. We aim to evaluate the efficacy and tolerability of potassium citrate versus phytotherapy in patients with minimal nephrolithiasis. Materials and Methods: After obtaining clearance from the Institutional ethics committee and administering an informed consent, 60 consenting patients of mild nephrolithiasis, were enrolled and ran- domized into citrate therapy (group-I) or phytotherapy (group-II). Phytotherapy was administered as a nutritional supplement, using a lupeol based extract (commer- cially available as Calcury™); while potas- sium citrate was administered as a syrup. Patients were monitored for changes in the serum/urinary electrolytes, radiologi- cal and clinical parameters Results: Group-I patients demonstrated positive changes in some biochemical pa- rameters along with significant symptomatic improvement. Four (13.3%) patients of group-I had mild upper gastrointestinal dis- comfort which was controlled with antac- ids. Group-II patients had favourable changes in biochemical parameters (de- creased serum uric acid and increased uri- nary citrate) along with significant symp- tomatic improvement (reduction/clearance of the stones) but without any side effects. Conclusions: Potassium citrate therapy and phytotherapy (lupeol extract using Calcury(tm) as a nutritional supplement) were useful in reducing symptomatology of nephrolithiasis. Potassium citrate may be effective in producing some positive biochemical changes with minor side ef- fects while phytotherapy may be clinically effective in hastening stone expulsion without any side effects. Both these thera- pies were not effective in all aspects. We believe phytotherapy may be used as an alternative medicine in select patients with minimal renal stones. Long term ran- domized placebo controlled trials are needed to better define the precise role of lupeol based phytotherapy versus citrate therapy in minimal nephrolithiasis. UP-03.072 New Management of Upper Urinary Tract Obstruction by Using Allium® Stents Alefelder J, Salem F, Noorzai T Eichsfeld-Klinikum Reifenstein, Kleinbartloff Reifenstein, Germany Introduction and Objective: For the treatment of chronic ureteral stricture usually a nephrostomy or a double-J stent are used. These devices need to be changed frequently. A new self-expanding large caliber stent inserted in the ob- structed ureter might be able to overcome this problem. Therefore we evaluate the mid-term effectiveness of the new Allium ureteral stents in chronic ureteral stenosis. Material and Methods: Allium® Ureteral Stent are self-expanding large caliber stents, 24Fr-30Fr (8 to 10mm) in diameter, made of a superelastic alloy (Nitinol®). The entire stent is covered with a new polymer to make it a nonpermeable tube to prevent tissue ingrowth and early en- crustation. This feature makes the stent a very flexible one for implantation even in tortuous passages. The Allium® URS (= Ureteral Stent) were inserted into 19 renal units in 17 patients with chronic ureteral stenosis in our clinic. All patients were on chronic double-J stenting. In all patients the URS was inserted retrograde. Indica- tions were ureteral obstruction due to gynecological cancer, bladder cancer, co- lon cancer, radiation and scars following of surgery. Indwelling time of the Al- lium® stent were up to 16 months. Results: The procedure of inserting the Allium® stent was easy to perform. Oper- ation time varies from 10 to 25 minutes (mean 16 minutes). No major complica- tions occur during the implantation.Dur- ing the meantime follow-up of 9 months none of the stents occluded. Stent migra- tion occurred in one patient after 20 days. One patient suffered from persistence ob- struction of the kidney, however in the other patients there was no obstruction or urinary tract infection. They were satisfied and remained asymptomatic. Conclusion: Our mid-term results showed that the use of Allium® Stent in ureteral stenosis is feasible, safe and effec- tive. Without secondary intervention ure- teral patency is maintained up to 16 months. Larger numbers of patients and follow-up is needed to see the long-term efficacy of these new stents. UP-03.073 Perurethral Multimodal Management of Multiple Renal Calculi Talaulikar A, Bapat S, Chaudhari H, Paramne V, Shah D, Deshmukh V Maharashtra Medical Research Society & Ratna Memorial Hospital, Pune, India Introduction and Objective: We are presenting a series of 14 cases of multiple renal calculi managed by per urethral mul- timodal procedures, thereby avoiding an invasive procedure of percutaneous neph- rolithotomy (PCNL). Material and Method: Fourteen patients had two or more renal calculi which were situated in renal pelvis and one or more calyces. Female/male ratio was 11/3. Age varied from 18 to 57 years. Average stone size was 1.5 to 2.5cm 2 . Case selection was based on rigid criteria of general course of ureter, size of pelvic stone, calyceal anat- UNMODERATED POSTER SESSIONS S366 UROLOGY 78 (Supplement 3A), September 2011