Trial reportWorld journal of urology2018
Should mini percutaneous nephrolithotomy (MiniPNL/Miniperc) be the ideal tract for medium-sized renal calculi (15-30 mm)?
Trial report in World journal of urology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.
What it found
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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.
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.
Who cites it
20 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Comparison of postoperative outcomes of mini percutaneous nephrolithotomy and standard percutaneous nephrolithotomy: a meta-analysis.Urolithiasis · 2022Pooled it
- Comparison of minimally invasive suction-evacuation versus standard nephrostomy sheaths for the treatment of partial staghorn stones.Urolithiasis · 2025Trial
- A randomized controlled trial comparing infectious complications using mini perc with and without suction for renal stones less than 3 cm in size.Urolithiasis · 2023Trial
- Comparison of two techniques for the management of 2-3 cm lower pole renal calculi in obese patients.World journal of urology · 2022Trial
- A comparison among PCNL, Miniperc and Ultraminiperc for lower calyceal stones between 1 and 2 cm: a prospective, comparative, multicenter and randomised study.BMC urology · 2020Trial
- Efficacy of Tranexamic Acid in Reducing Blood Loss During Percutaneous Nephrolithotomy: An Interventional Study.Cureus · 2025Article
- Severe bleeding in patients following "tubeless" percutaneous nephrolithotomy: Predictors of angioembolization.Urologia · 2025Article
- Innovations in kidney stone management: mini-PCNL for staghorn calculi in resource-limited settings.Frontiers in urology · 2025Article
- What is the safe and effective dilator number during access in PCNL? Three-shot dilation versus classical sequential Amplatz dilation.BMC urology · 2023Article
- Factors Affecting Residual Stone Rate, Operative Duration, and Complications in Patients Undergoing Minimally Invasive Percutaneous Nephrolithotomy.Medicina (Kaunas, Lithuania) · 2022Article
- Current insights on haemorrhagic complications in percutaneous nephrolithotomy.Asian journal of urology · 2022Review
- A systematic review and meta-analysis of minimally invasive vs. standard percutaneous nephrolithotomy in the surgical management of renal stones.Experimental and therapeutic medicine · 2021Article
- Comparison of standard- and mini-percutaneous nephrolithotomy for staghorn stones.Arab journal of urology · 2021Article
- Safety and efficacy of a single middle calyx access (MCA) in mini-PCNL.Urolithiasis · 2020Article
- Minimally invasive versus standard endoscopic combined intrarenal surgery for renal stones: a retrospective pilot study analysis.International urology and nephrology · 2020Article
- Mini PCNL Over Standard PCNL: What Makes it Better?Surgery journal (New York, N.Y.) · 2020Review
- Evolution of technologies in urology: full steam ahead?World journal of urology · 2018Article
- Tubeless mini-percutaneous nephrolithotomy for renal stones larger than 20 mm.Indian journal of urology : IJU : journal of the Urological Society of IndiaArticle
- Effects of visual standard channel combined with visual superfine precision puncture channel or super-mini channel percutaneous nephrolithotomy on multiple renal calculi.Pakistan journal of medical sciencesArticle
- Comparison of Mini-Percutaneous Nephrolithotomy by Standard and Miniperc Instruments in Pediatric Population: A Single-Center Experience.Journal of Indian Association of Pediatric SurgeonsArticle
Corrections and comments
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Authors and funding
1 author.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionReducing the percutaneous nephrolithotomy (PCNL) tract size reduces the morbidity associated with the procedure. Prolonged procedure time is a concern. Modification in technique required is to fragment the stone into smaller particles and remove them using the vacuum cleaner effect. This prospective study compares the efficacy and morbidity of reducing the tract size from the standard 24-16.5 Fr for stones sized from 16 to 30 mm.
methods123 patients were enrolled in this prospective study and distributed into 2 groups based on the tract size used (group A 16.5/17.5 Fr Miniperc, N = 61 and group B: 22/24 Fr standard PCNL, N = 62). Critical factors assessed were procedure time, fluoroscopy time, blood loss, pain score, stone clearance status and complications.
resultsBoth the groups were comparable with respect to age, creatinine and stone size. The blood loss (hemoglobin and PCV drop) was significantly less for group A (p < 0.001). Both the groups were comparable with regards to the pain score (p > 0.05). Nephrostomy was placed in 3 patients in group A and 14 patients in group B (p = 0.01). There was no significant difference in the procedure time amongst the 2 groups. A total of 9 patients (4 in group A and 5 in group B) had residual fragments greater than 3 mm.
conclusionThe 16.5 Fr Miniperc tract offers lower morbidity in terms of blood loss and maintains stone clearance comparable to larger 24 Fr tract size. It should be the ideal size used for medium sized renal stones.
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Registered trials
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.