Posted in Volume 16 - Number 1 Suppl
RAJIB ALI DEENARI, MALIK HUSSAIN, SHER MUHAMMAD, MUKHTIAR A. ABRO, N.A.BALOCH
ABSTRACT | Full Text PDF
BACKGROUND: To determine factors influencing the clearance of fragments after extracorporeal shock wave lithotripsy (ESWL) for lower pole calyceal (LPC) stones.
MATERIAL AND METHODS: This prospective study was conducted at department of Urology Chandka Medical College Hospital Larkana In the period between April 1998 and Dec: 2003, 100 patients with isolated lower polar calyceal calculi < 20 mm, in patients aged 116-56years(mean 25 years), were included in the study. Intravenous urograms (IVU) were reviewed to define the LPC anatomy length, width of the infundibulum and pelvicalyceal angle. Study end points i.e. stone free status; number of shock waves used and number of sessions.
RESULTS: At three months follow up the clearance for stone size <10mm (57 patients), 11-20 mm (43 patients) were 93%, and 86% respectively. Patients with acute angle LPC (<90°) and obtuse angle (>90°) had stone clearance of 92% and 97% respectively. For the infundibular width of <4mm, the stone clearance was 93% were as for >4mm.
CONCLUSION: In the present work, we found that extracorporeal shock wave lithotripsy is the first line treatment for lower pole calyceal stones and favored by urologist and patients because of its noninvasiveness.
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