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Induced Diuresis During ESWL Treatment For Renal Stones – Audit Of Stone Free Rates. S Taneja I Husain Bedford Hospital, Bedford. Aims & Objectives. Audit the effect of active diuresis during ESWL on the outcome Compare our results with recently published results from other centres.
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Induced Diuresis During ESWL Treatment For Renal Stones – Audit Of Stone Free Rates S Taneja I Husain Bedford Hospital, Bedford
Aims & Objectives • Audit the effect of active diuresis during ESWL on the outcome • Compare our results with recently published results from other centres
Rationale • Distended pelvi-calyceal system provides more room for shock wave treatment • Active urinary flow results in more efficient fragment clearance
Materials & Methods • All patients undergoing ESWL treatment for renal stones from November 2000 to April 2002 • Patients with complicating factors eg metabolic stones are excluded
Materials & Methods • Storz Modulith SL20 Mobile Electro-magnetic lithotripter • 1L Saline infusion started at start of ESWL, given over 30-60 min • Diclofenac 100mg pr • Pethidine 100mg + Maxolon 10mg iv • Frusemide 20mg iv
Materials & Methods • Supine Position • 2000 Shocks • Follow up in Stone Clinic in 3 Weeks
Results • No of Patients 71 • Female 28(39.4%) Male 43(60.6%) • Mean Age 54Y
Results • No of Stones 75 • Left 45 (60%) Right 30 (40%) • Mean Stone Size 11.2mm • Total ESWL Sessions 114 • ESWL Sessions / Stone 1.5
Comparing The Results • Re-auditing a regional lithotripsy service Parkin et al BJU Int(2002), 89, 653-657
Conclusions • Use of diuresis seems to have a much improved stone clearance rates • Low incidence of obstructive complications • ? Other factors • Need for Controlled Trial