Comparing Efficiency and Stone-Free Rates Mini PCNL vs Flex URS
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: ClearPETRA suction access sheath, ClearPETRA suction access sheath.
- Who it may be relevant to
- Registry conditions: Kidney Stones, Nephrolithiasis, Urolithiasis. Basic parameters: from 18 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- United States
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Comparing Efficiency and Stone-Free Rates After Mini-Percutaneous Nephrolithotomy and Flexible Ureteroscopy With Suction Access Sheaths
Overview
The objective of the study is to compare the stone free rates with ureteroscopy utilizing the ClearPETRA suction ureteral access sheath, and mini-PCNL; both procedures and ClearPETRA sheaths are standard of care and are used regularly for stone treatment. Our primary objective is to assess the complete stone free rate with both procedures.
Detailed description
With the advent of mini-PCNLs, some endourologists have been utilizing the technique to treat renal calculi up to 3cm in size with better stone free rates and similar comorbidity compared to ureteroscopy. These procedures require percutaneous renal access, and it is associated with greater length of stay and fluoroscopy time.
The ClearPETRA ureteral access sheath has shown great promise with improving stone free rates, decreasing intra-renal pressure and delivering some of the benefits of mini-PCNL without the added risk associated with obtaining percutaneous renal access.
The ClearPETRA flexible suction ureteral access sheath anecdotally improves efficiency and allows endourologists to better clear stone debris when compared to traditional ureteral access sheaths. We have yet to see a comparison between suction ureteral access sheaths and mini-PCNL with the suction renal access sheath.
Study Hypothesis: Compared to traditional access sheaths, using ClearPETRA access sheaths will result in an improvement in stone free rates with both modalities, with lower complications. Using ClearPETRA access sheaths in both modalities compared to traditional access sheaths should result in less of a difference in stone free rates between the ureteroscopy group and the mini-PCNL group.
Interventions
- Device ClearPETRA suction access sheath
Ureteroscopy utilizing the ClearPETRA suction access sheath. - Device ClearPETRA suction access sheath
Mini-PCNL utilizing the ClearPETRA suction access sheath
Primary outcome measures
- Stone free rate [Time frame: 4 weeks post-procedure]
Secondary outcome measures (9)
- Surgery time [Time frame: Procedure day (1 day)]
- Complication rate [Time frame: Procedure day (1 day)]
- Unplanned hospital visits [Time frame: 90 days postoperatively]
- Need for additional procedure [Time frame: 90 days postoperatively]
- Length of stay [Time frame: Perioperatively (starting at Baseline/Procedure Date)]
- Inability to access ureter [Time frame: Procedure day (1 day)]
- Need to upsize from 18Fr Sheath [Time frame: Procedure day (1 day)]
- Occurrence of post-procedure sepsis [Time frame: Perioperatively (starting at Baseline/Procedure Date)]
- Hospital / patient costs (in total for procedure and any necessary postoperative hospital admissions or procedures related to the initial procedure). [Time frame: Perioperatively (starting at Baseline/Procedure Date)]
Eligibility criteria
Inclusion criteria
- Patients 18 years or older
- Have a CT scan showing renal stones 1-3cm in length
- Patients who will be able to read, understand, and complete patient questionnaires
Exclusion criteria
- Pregnant individuals
- Those with anomalous renal anatomy
- Patients with a urinary diversion (ex: Ileal conduit, reservoir, bladder substitute, etc.)
- Any condition rendering patient medically unfit to undergo either procedure (Bleeding diasthesis)
- Patients who lack decisional capacity
- Patients who are non-english speakers\*
- Non-recruitment of non-english speakers is due to the study being a small pilot study that is used to assess the stone free rate for patients treated with a ureteroscopy or mini-PCNL using ClearPETRA suction access sheaths in a small portion of our patient population seeking treatment for stones. The team also does not possess the bandwidth or personnel to consent patients who are non-English speaking.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- Randomized
- Model
- Parallel assignment
- Masking
- Open label
- Primary purpose
- Treatment
Study locations
United States · 1 center
- Northwestern Memorial Hospital — Chicago
Identifiers
NCT: NCT07072598 · STU00222993