Skip to content

Ultraslow Full-power SWL Versus Slow Power-ramping SWL in Stones With High Attenuation Value

Ultraslow Full-power SWL Versus Slow Power-ramping SWL in Stones With High Attenuation Value

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03763539
Acronym
SWL
Enrollment
196
Registered
2018-12-04
Start date
2015-09-30
Completion date
2018-05-31
Last updated
2018-12-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Renal Stones

Keywords

renal stones, SWL, High density stones, Ultraslow SWL, Slow SWL, Ramping, Pause

Brief summary

Ultraslow full-power SWL versus slow power-ramping SWL in stones with high attenuation value

Detailed description

To evaluate the efficacy of ultraslow rate of SWL versus slow rate, power ramping SWL.

Interventions

PROCEDURESWL

Shock wave lithotripsy

Sponsors

Cairo University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* single renal stone less than or equal to 3 cm (2 cm for lower calyceal stones) * radio-opaque stone * high attenuation value (≥ 1000 HU) stone

Exclusion criteria

* Abnormal renal anatomy * renal insufficiency * solitary kidney * coagulopathies * uncontrolled hypertension * renal artery or aortic aneurysm * active urinary tract infection * pregnancy * severe skeletal malformations (spinal deformity) precluding proper stone localization * skin to stone distance (SSD) \> 11 cm * BMI \> 30 Kgm/m2

Design outcomes

Primary

MeasureTime frameDescription
stone free rate3 months following last session of SWLComplete clearance of stones in addition to clinically insignificant residual fragments

Secondary

MeasureTime frameDescription
Complications1 year following last session of SWLComparison of complications in both groups

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026