The SAV value is an independent predictor of the success of ESWL and a useful tool for planning stone treatment. Patients with a SAV P956 HU are not ideal candidates for ESWL. The inclusion criteria for ESWL of stones with a SAV <500HUcan be expanded with regard to stone size, site, age, renal function and coagulation profile. In patients with a SAV of 500–1000 HU, factors like a body mass index of >30 kg/m2 and a lower calyceal location make them less ideal for ESWL. ª 2014 Production and hosting by Elsevier B.V. on behalf of Arab Association of Urology.
This study shows that determination of stone density and stone size on CT KUB pre ESWL can help to predict the outcome of ESWL. We propose that stone density <500 HU and stone size < 5 mm are highly likely to result in successful ESWL.
ESWL monotherapy is safe and effective method for treatment of bladder stones with no other causes of infra-vesical obstruction. Several indications can be met including patients with high anaesthetic risk, patients fearing anaesthesia or endoscopic procedures, and patients who have difficulty in positioning. 2016 Arab Association of Urology. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC ND license (http://creativecommons. org/licenses/by-nc-nd/4.0/)