Affiliation:
1. Oxford University Hospitals
2. Hakkari Yüksekova Devlet Hastanesi
Abstract
Objective: This retrospective study aims to compare the success rates of shock wave lithotripsy (SWL) using
ultrasound (US) targeting versus X-ray targeting.
Material and Methods: A retrospective chart review was conducted on patients who underwent SWL for
urinary tract stones between January 1, 2018, and December 31, 2020. The patients were divided into two
groups based on the imaging modality used for stone targeting during SWL: the US group and the X-ray
group. The success rates of SWL, defined as complete stone clearance or clinically insignificant residual
fragments (<4mm), were compared between the two groups.
Results: A total of 200 patients were included in the study, with 100 patients in each group. The demographics
and stone characteristics of the patients were similar between the two groups. The success rate of SWL in
the US group was 84%, compared to 72% in the X-ray group (p=0.041). The odds ratio for success in the US
group compared to X-ray group was 2.04 (95% confidence interval: 1.02-4.07)
Conclusion: This retrospective study suggests that SWL with US targeting may have a higher success rate
compared to X-ray targeting. US provides a safe and effective alternative for stone targeting during SWL,
avoiding the use of ionizing radiation. Further research is warranted to confirm these findings and explore
the potential benefits of US guided SWL in clinical practice.