Assessment of the Ideal Time Interval between Repeated Shock Wave Lithotripsy Sessions for Renal Stones

Alzubir, Abdulrahman Abubaker; Maarouf, Aref Mohamed; Ali, Maged Mohamed; Malek, Mahmoud Mohamed

doi:10.21608/ejhm.2022.236117

Assessment of the Ideal Time Interval between Repeated Shock Wave Lithotripsy Sessions for Renal Stones

Document Type : Original Article

Authors

10.21608/ejhm.2022.236117

Abstract

Background: An extracorporeal shock wave lithotripsy (ESWL) procedure is frequently used to treat upper urinary tract urolithiasis.
Objective: Determining the optimal interval between repeated sessions of shock wave lithotripsy for renal stones.
Patients and Methods: Between June 2021 and February 2022, three groups of thirty-six patients underwent elective outpatient lithotripsy for renal stones. Patients who required many SWL sessions were studied and classified into 3 groups, 12 patients each. The first group's SWL sessions were separated by three days, while the second group's sessions were separated by one week. Those in the third group, sessions were repeated after two weeks. Three groups were compared on the VAS scores they recorded during and after the ESWL.
Results: Stone clearance rates were 83.3%, 75.0%, and 91.7% (P= 0.54) for groups 1, 2, and 3. There was no significant difference between three groups as regard laboratory parameter (B2-microglobulinuria and Microalbuminuria) after 1^st session, after 2^nd session the laboratory parameter was significantly higher in group 1 with no significant difference between groups 2 and 3. All groups increased after 2^nd session then decreased after one month. Steinstrasse was insignificantly associated with group 3 (8.33%, P =0.51).
Conclusion: Our findings support the transient effect of ESWL through measurement and follow up the laboratory parameters and possible complications. We concluded using SWL to treat renal stones is safe and effective, and short-interval treatments do not raise the risk of complications.

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