Evidence map›Paper›PMID 41509093›Full record

ArticleArab journal of urology2026

Retrograde intra renal surgery (RIRS) versus percutaneous nephrolithotomy (PNL) as a primary treatment for large renal stones: A prospective randomized controlled trial.

Ayman Kassem, Hesham Torad, Ahmed Essam, Mahmoud Abdel Hamid, Sameih Zamel, Amr Elkady

Abstract read
In one paragraph

Article in Arab journal of urology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

2 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
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.

Ayman KassemKasr Alainy School of Medicine, Cairo University, Cairo, Egypt.
Hesham ToradKasr Alainy School of Medicine, Cairo University, Cairo, Egypt.
Ahmed EssamKasr Alainy School of Medicine, Cairo University, Cairo, Egypt.
Mahmoud Abdel HamidKasr Alainy School of Medicine, Cairo University, Cairo, Egypt.
Sameih ZamelKasr Alainy School of Medicine, Cairo University, Cairo, Egypt.
Amr ElkadyKasr Alainy School of Medicine, Cairo University, Cairo, Egypt.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Despite the high efficacy of percutaneous nephrolithotomy (PNL), it has more morbidity and a difficult learning curve. Retrograde intra renal surgery (RIRS) was introduced as a minimally invasive procedure for treatment of renal stones. Objective: To compare RIRS versus PNL in the management of renal stones sized 2-3 cm. Patient and methods: In this prospective randomized controlled trial, 122 patients with renal stones 2-3 cm were included and divided into two equal groups. Group A underwent RIRS. Group B underwent PNL. Patients with bleeding disorders, pregnancy, active UTI were excluded. Laboratory investigations, Ultrasound, CTUT were done preoperatively. Perioperative outcome (operative time, complications, hospital stay and pain score) was recorded. SFR (stone free rate) was assessed by CTUT after one month. Results: The mean stone size for group A and B were 2.11 ± 0.21 and 2.12 ± 0.23, respectively. The Stone free rate was 70.5% in RIRS and 73.8% in PNL ( Conclusion: RIRS can be used as an alternative to PNL for the management of renal stones sized 2-3 cm, with comparable stone free rates, less hospital stays, less pain score, less hemoglobin drops. but longer lithotripsy time.

Indexed as

Flexible ureteroscopypercutaneous nephrolithotomyrenal stones

Identifiers

PMID41509093
PMCPMC12777879

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.