An observational study in Renal Stone and Ureteral Stone, sponsored by University Hospital, Angers. Status unknown. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-05-04.
Sponsored by University Hospital, Angers · Observational
Holmium laser is the current gold standard for lithotripsy on urinary lithiasis, while Thulium is brand new. The latter has been released in July 2020 in Europe, and only in-vitro studies have been published.
The aim of this study is to compare the stone free rate in ureteroscopy, for all consecutive patients treated with laser fragmentation, between both Holmium and Thulium lasers.
The costs and complications will also be studied.
324 studies on the registry are indexed under Nephrolithiasis; 90 are open to participants now.
This study's planned enrollment of 200 is above the median of 100 across 57 observational studies indexed under Nephrolithiasis.
Browse Nephrolithiasis studies →University Hospital, Angers is the lead sponsor of 478 studies on the registry; 120 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Patients who are scheduled for ureteroscopy on renal or ureteral stones, which have been previously confirmed by tomography
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Stone fragmentation are performed with Holmium laser in ureteroscopy
Device: Ureteroscopy for upper tract stone treatment with Holmium laser
Stone fragmentation are performed with Thulium laser in ureteroscopy
Device: Ureteroscopy for upper tract stone treatment with Thulium laser
Rigid or flexible ureteroscopy for ureteral or renal stone. Lithotripsy with Holmium laser
Rigid or flexible ureteroscopy for ureteral or renal stone. Lithotripsy with Thulium laser
Stone free rate
Urinary tract echography or renal computer tomography imaging. Patients with residual fragments under 4 mm are stone free.
Time frame: Three months after surgery
Perioperative complications
Recording data about ureteric perforation and bleeding
Time frame: During the intervention
Operating time
All surgeries are included
Time frame: Immediately after the intervention
Postoperative complications
Recording data according to the Clavien classification (rates of hospitalisation, pain, infection and surgical revision)
Time frame: Up to three months after surgery
No study locations are listed for this record.
Plan to share: No
Start is estimated for May 2021; primary completion for May 2021, 0 months later.
Of 27 observational studies under Nephrolithiasis, half reached primary completion within 23 months of starting (the median), counting those still running; a quarter within 10 and three quarters within 54. This study's planned 0 months is below that.
How these figures are worked out, and which studies are left out of them.
This study is status unknown, as verified in May 2021. You cannot join it, but the record below documents what was studied.
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