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Extracorporeal shock wave lithotripsy: interventional radiologic solutions to associated problems.
Radiology
|December 1, 1986
Summary
Extracorporeal shock wave lithotripsy is effective for kidney stones. Larger stones (≥2.5 cm) may require interventions like nephrostomy due to obstruction from stone fragments.
Area of Science:
- Urology
- Interventional Radiology
Background:
- Extracorporeal shock wave lithotripsy (ESWL) is a common treatment for kidney stones.
- Stone size is a critical factor influencing ESWL outcomes and potential complications.
Purpose of the Study:
- To evaluate the outcomes of ESWL based on stone size.
- To identify the incidence and management of complications following ESWL.
Main Methods:
- Retrospective analysis of 1,500 patients treated with ESWL.
- Categorization of patients based on stone diameter (<2.5 cm vs. ≥2.5 cm).
- Documentation of all subsequent interventional radiologic procedures.
Main Results:
- 178 interventional procedures were performed across the patient cohort.
- Patients with larger stones (≥2.5 cm) had a higher incidence of urinary tract obstruction (29% required nephrostomy).
- Only 1.8% of patients with smaller stones (<2.5 cm) required radiologic intervention.
Conclusions:
- ESWL is generally safe and effective, but larger stones pose a higher risk of steinstrasse and obstruction.
- Interventional radiology, including percutaneous nephrostomy, is crucial for managing complex cases, especially those with large stones and obstruction.