Steerable Ureteroscopic Renal Evacuation (SURE) for Large Renal Stones: A Multi-Institutional Center Study
View abstract on PubMed
Summary
This summary is machine-generated.The steerable ureteroscopic renal evacuation (SURE) system effectively clears large kidney stones. This aspiration system is safe for high-risk patients, potentially reducing the need for further procedures.
Area Of Science
- Urology
- Nephrology
- Minimally Invasive Surgery
Background
- A pilot study indicated steerable ureteroscopic renal evacuation (SURE) is effective for stone removal.
- This study evaluates the safety and efficacy of the CVAC® Aspiration System for large stone burdens.
Purpose Of The Study
- To assess the safety and efficacy of SURE using the CVAC® Aspiration System.
- To evaluate SURE in patients with large stone burdens (≥10 mm).
- To analyze outcomes in high-risk patient subgroups.
Main Methods
- Retrospective study of 43 patients undergoing SURE for large stone burdens.
- Evaluation of demographics, secondary procedures, complications, and stone clearance (percent baseline volume reduction).
- Sub-analyses for high-risk patients on anticoagulation/antiplatelet therapy or with neurological conditions.
Main Results
- Mean stone burden was 29±12 mm; mean volume was 3,092±5,002 mm³.
- High stone clearance rates: 91.7% had >90% clearance, 100% had >60% clearance.
- Only 9.5% of patients required secondary procedures; no device-related complications or admissions.
Conclusions
- The CVAC® Aspiration System demonstrates safety and efficacy for large kidney stone burdens.
- SURE may reduce the need for percutaneous nephrolithotomy (PCNL) or staged procedures.
- The system is effective even in high-risk patient populations.
Related Concept Videos
Procedures for Kidney StonesMedical intervention is necessary when kidney stones or renal calculi are too large to pass spontaneously (typically greater than 5 millimeters) when stones are accompanied by symptomatic infection (such as fever or pyelonephritis), when they impair kidney function, or when they cause persistent symptoms like severe pain, nausea, or urinary retention. Additionally, patients with only one kidney or those who cannot be treated with medical management also require...
The diagnosis of renal calculi involves several imaging techniques, including non-contrast CT scans and ultrasound. These methods help visualize kidney stones, assess their size and location, and detect possible obstructions. Additionally, Measuring urine pH is useful for diagnosing specific stone types, such as struvite (alkaline pH) and uric acid stones (acidic pH). Cystine stones are primarily linked to cystinuria, a genetic condition. A urinalysis helps detect blood in the urine (hematuria)...
IntroductionIntravenous Urography (IVU) and Retrograde Pyelography (RP) are important diagnostic imaging techniques used to evaluate the urinary system. These methods help identify structural abnormalities, obstructions, and functional issues in the kidneys, ureters, and bladder. Both procedures use iodine-based contrast media to enhance the visibility of urinary tract structures on X-ray images, though they differ in their methods and indications.1. Intravenous Urography (IVU)Intravenous...
Kidney, Ureter, and Bladder (KUB) StudiesKidney, Ureter, and Bladder (KUB) studies are standard diagnostic imaging procedures used to assess the anatomy of the urinary system. They are commonly utilized for patients experiencing abdominal pain or urinary symptoms. By using a simple X-ray of the abdomen, KUB studies can reveal structural and pathological abnormalities within the kidneys, ureters, and bladder. These studies are particularly valuable in diagnosing kidney stones, urinary...
Meaning of Cystoscopic Examination:Cystoscopy is an essential diagnostic tool in urology that is used to assess the structure and function of the genitourinary system. It provides a direct view of the urethra, bladder, and, in some cases, the ureteral openings. This procedure helps detect structural abnormalities, infections, cancers, and blockages in the urinary tract. There are two types of cystoscopy:Flexible cystoscopy is commonly performed in outpatient settings due to its less invasive...
IntroductionUltrasonography, or renal ultrasound, is a noninvasive medical imaging technique that uses high-frequency sound waves to visualize the kidneys, ureters, bladder, and surrounding tissues.Indications for Urinary System UltrasonographyUrinary system ultrasonography is indicated in various clinical scenarios, such as:Kidney Stones (Urolithiasis): To detect and monitor the size and presence of kidney or urinary tract stones.Hydronephrosis: To assess the dilation of the renal pelvis and...

