Is health-related quality of life of patients after single-use flexible ureteroscopy superior to extracorporeal shock wa
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ORIGINAL PAPER
Is health‑related quality of life of patients after single‑use flexible ureteroscopy superior to extracorporeal shock wave lithotripsy? A randomised prospective study Svihra Jan1,2 · Sopilko Igor1 · Svihrova Viera3 · Student Vladimir2 · Luptak Jan1,4 Received: 16 June 2020 / Accepted: 23 October 2020 © Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract The aims of the study were to compare the change in the Wisconsin Stone Quality of Life (WISQOL) score in patients who underwent retrograde intrarenal surgery (RIRS) single-use ureteroscope or extracorporeal shock wave lithotripsy (ESWL) with a calculation of quality-adjusted life-years (QALYs). 158 patients treated with urinary stone disease were randomly divided into 80 patients in the validation and 78 patients in the intervention arm. Patients in the intervention arm were randomly divided into the RIRS or the ESWL group. Linguistic validation of the WISQOL into the Slovak language was performed using a standardised multistep process. Discriminant validity was assessed by comparing stone-forming patients to an additional 34 healthy individuals. Patients were asked to fill in the WISQOL before and in the 24th week after the intervention. The QALYs were calculated by the formula QALY = weight factor (WF) x time period after intervention. The Cronbach’s α of the WISQOL was 0.94, the Pearson’s coefficient for test–retest reliability was 0.91, and the discriminant validity confirmed a higher score for healthy individuals (p
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