Evidence map›Paper›PMID 33005998›Full record

Observational studyUrolithiasis2021

In-vitro and in-vivo new evidence for Flexor® Vue™ deflecting endoscopic system use: optimization of the stone free rate (SFR) after flexible ureteroscopy and Ho:YAG laser lithotripsy.

Alberto Saita, Luca Villa, Francesco Persico, Giovanni Lughezzani, Domenico Prezioso, Paolo Casale

Abstract readObservational Study
PubMed Publisher
In one paragraph

Observational study in Urolithiasis, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact, top 80% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed, 0 citations in OpenAlex.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 1 country.

Alberto SaitaDepartment of Urology, Humanitas Clinical and Research Center - IRCCS, Rozzano, Milan, Italy.
Luca VillaDivision of Experimental Oncology/Unit of Urology URI, Ospedale San Raffaele IRCCS, Milan, Italy.
Francesco PersicoDepartment of Urology, Humanitas Clinical and Research Center - IRCCS, Rozzano, Milan, Italy. francesco.persico90@gmail.com.ORCID http://orcid.org/0000-0003-0000-5517
Giovanni LughezzaniDepartment of Urology, Humanitas Clinical and Research Center - IRCCS, Rozzano, Milan, Italy.
Domenico PreziosoDepartment of Neurosciences, Sciences of Reproduction, and Odontostomatology, University of Naples Federico II, Naples, Italy.
Paolo CasaleDepartment of Urology, Humanitas Clinical and Research Center - IRCCS, Rozzano, Milan, Italy.
Humanitas University · ITIRCCS Ospedale San Raffaele · ITUniversity of Naples Federico II · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To test in-vitro and in-vivo the Flexor® Vue™ deflecting endoscopic system (FVDES) as a new technology able to improve the removal of residual intrarenal fragments.This is an observational prospective "proof of concept" study performed in patients with renal calculi treated with flexible ureteroscopy and Ho:YAG laser lithotripsy (f-URS) in Humanitas Research Hospital (Rozzano, Italy). We assessed feasibility, efficacy and safety of FVDES as an in-vivo tool for removing residual fragments after f-URS. The stone-free rate (SFR) at 30 days post-operatively was evaluated using CT. An in-vitro model was developed to evaluate the FVDES when used for this purpose.Eleven patients (M/F ratio: 7/4, mean age 63.5 ± 8.3) were treated. The stones were located in the lower calyces and the renal pelvis in 3 and 8 patients, respectively. Mean stone size was 18 ± 3.2 mm. The procedure with FVDES was feasible and effective in all the patients. Mean operative time was 82 ± 13.7 min and median hospitalization was of 1.5 days. The SFR after 90 days was 81% (9/11). We reported no relevant complications (Clavien-Dindo > 2); one patient had fever and was treated with antibiotics. The experimental in-vitro model demonstrated the efficacy of FVDES, allowing the removal of about 90% of fragments.Our study showed that FVDES is effective when used as a tool for retrieval of residual fragments at the end of f-URS. This technology could ensure a complete cleaning of the intrarenal collecting system and represent a safe alternative to basketing.

Indexed as

AgedFeasibility StudiesFemaleHumansKidney CalculiKidney CalicesLasers, Solid-StateLength of StayLithotripsy, LaserMaleMiddle AgedModels, AnatomicOperative TimeProof of Concept StudyProspective StudiesRetrospective StudiesLithotripsyRenal stonesRetrograde intra-renal surgeryStone-free rate

Identifiers

PMID33005998
OpenAlexW3091744281

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.