Actively Recruiting
Comparison of Extracorporeal Shock Wave Lithotripsy Versus Retrograde Intrarenal Surgery for Kidney Stones Measuring 1 to 2 Centimeters
Led by Ziauddin Hospital · Updated on 2025-12-03
98
Participants Needed
1
Research Sites
N/A
Total Duration
On this page
AI-Summary
What this Trial Is About
Researchers are evaluating treatments for patients with kidney stones measuring between 1 and 2 centimeters. The study compares two common procedures: extracorporeal shock wave lithotripsy (ESWL), which uses shock waves from outside the body to break stones into small pieces, and retrograde intrarenal surgery (RIRS), a minimally invasive surgery using a flexible scope and laser to fragment the stone. This study aims to find differences in stone clearance, safety, pain, and the need for additional treatments. Participants will be randomly assigned to one of two groups. Group A will receive ESWL as an outpatient procedure under sedation, where shock waves are applied at increasing rates up to 3000 shocks per session, along with standard pain relief, hydration advice, and antibiotics. Group B will undergo RIRS under general anesthesia after placement of a ureteral stent 2 to 3 weeks before surgery. During RIRS, a laser breaks the stone and a stent remains in place for three weeks post-surgery. Both groups receive standard care before and after treatment. Participants will be followed for 28 days after their procedure. Researchers will assess stone clearance using CT scans, measure pain levels 24 hours post-procedure, monitor hospital stay length, and watch for blood in the urine or infection signs like fever and raised white cell count. They will also record if further procedures are needed to treat the stone. This data will help guide treatment choices for kidney stones in clinical practice.
CONDITIONS
Brief Title
Comparison of Extracorporeal Shock Wave Lithotripsy Versus Retrograde Intrarenal Surgery in the Management of Renal Calculi
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Patients aged between 18 and 65 years.
- Patients diagnosed with a single kidney stone measuring between 1 cm and 2 cm, confirmed by imaging (ultrasound or non-contrast CT).
You will not qualify if you...
- Presence of multiple or bilateral kidney stones.
- Anatomical abnormalities such as horseshoe kidney, ureteropelvic junction obstruction, or calyceal diverticulum.
- Active urinary tract infection at the time of treatment.
- Pregnancy.
- Bleeding disorders or use of blood thinners that cannot be safely stopped.
- Chronic kidney disease with eGFR less than 30 mL/min/1.73 m².
- Morbid obesity with BMI over 40 kg/m².
- Having a solitary kidney.
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Your Study Journey
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Duration - 2 to 3 weeks
Participants assigned to the surgery group have a double-J ureteral stent placed 2 to 3 weeks before surgery.
1 visit (in-person)
Duration - Day of procedure
Participants receive either extracorporeal shock wave lithotripsy (ESWL) as an outpatient procedure under sedation or undergo retrograde intrarenal surgery (RIRS) under general anesthesia with stone fragmentation and stent placement.
1 visit (in-person)
Duration - 28 days
Participants are monitored for stone clearance and postoperative pain following their procedure.
1 visit at 24 hours and 1 visit at 28 days (in-person)
Trial Site Locations
Total: 1 location
1
Ziauddin Hospital
Karachi, Sindh, Pakistan, 75000
Actively Recruiting
Research Team
M
Muhammad Waqas Arshad Arshad
How is the study designed?
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
TREATMENT
Number of Arms
2
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