Extracorporeal shock wave lithotripsy (ESWL) outcome based on CT scan and patient parameters using ESWL score

Document Type





Objective: To prospectively evaluate ESWL (extracorporeal shock wave lithotripsy) outcomes and validate ESWL Score.
Study design: An observational study.
Place and duration of study: The Aga Khan University Hospital, from January 2021 to December 2021.
Methodology: Patients with symptomatic, solitary, radio-opaque renal stone measuring Results: A total of 146 patients were included in the study. Median values for age, stone size, BMI and stone density were 40 years, 8 mm, 27 Kg/m2, and 774 HU respectively. Post ESWL, 99 (68%) patients were stone-free while 47 (32%) patients had residual stones. The stone clearance increased with the increasing score: 50% for ESWL score 0, 55.6% for ESWL score 1, 66.1% for ESWL score 2, and 85.7% for ESWL score 3 (p=0.01). The area under the curve (AUC) of ESWL score was 0.655 with 95 % CI (p=0.001).
Conclusion: ESWL Score is a useful predictor of the success of ESWL. It can help decide the individualised and appropriate modality of treatment and assist with patient counselling

Publication (Name of Journal)

Journal of the College of Physicians and Surgeons--Pakistan : JCPSP