Evidence map›Paper›PMID 33457244›Full record

ArticleTranslational andrology and urology2020

Is a ureteral stent required before flexible ureteroscopy?

Qiyi Hu, Yongjian Ji, Zhu Wang, Yulin Lai, Qiong Deng, Jianwen Zhang, Hongliang Wang, Hui Liang, Hongjun Zhao

Open access · diamondAbstract read
In one paragraph

Article in Translational andrology and urology, 2020. 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
0.5field-weighted citation impact, top 29% 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

2 citing papers in PubMed, 1 synthesis or guideline pooled it, 8 citations in OpenAlex.

  1. Pooled it
  2. Trial
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

9 authors at 2 institutions in 1 country.

Qiyi HuDepartment of Urology, People's Hospital of Longhua, Southern Medical University, Shenzhen, China.
Yongjian JiDepartment of Urology, Weifang People's Hospital, Weifang, China.
Zhu WangDepartment of Urology, People's Hospital of Longhua, Southern Medical University, Shenzhen, China.
Yulin LaiDepartment of Urology, People's Hospital of Longhua, Southern Medical University, Shenzhen, China.
Qiong DengDepartment of Urology, People's Hospital of Longhua, Southern Medical University, Shenzhen, China.
Jianwen ZhangDepartment of Urology, People's Hospital of Longhua, Southern Medical University, Shenzhen, China.
Hongliang WangDepartment of Urology, People's Hospital of Longhua, Southern Medical University, Shenzhen, China.
Hui LiangDepartment of Urology, People's Hospital of Longhua, Southern Medical University, Shenzhen, China.
Hongjun ZhaoDepartment of Urology, Weifang People's Hospital, Weifang, China.
Southern Medical University · CNWeifang People's Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo retrospectively evaluate the therapeutic effectiveness and safety of flexible ureteroscopes without preoperative ureteral stent placement.

methodsA total of 243 patients who had undergone flexible ureteroscopy (fURS) lithotripsy were reviewed. The patients were divided into two groups: 119 patients without preoperative ureteral stent placement were set as group A; and the remaining 124 patients who received preoperative ureteral stent placement were set as group B. The operative time, length of hospital stay, hospital costs, stone-free rates (SFRs), complications, and re-operation rates of the two groups were respectively compared.

resultsPairwise analysis indicated the following: the average operative time of group A was longer than that of group B (66.53±10.19 versus 59.85±9.85 min, P=0.0001), the average length of hospital stay of group A was considerably shorter than that of group B (6.56±0.90 versus 10.67±1.50 d, P=0.0001), the SFRs of group A were significantly lower than those of group B at 3 days postoperatively (36.1%, 43/119 versus 51.6%, 64/124, P=0.0034), and the average hospital costs were substantially lower in group A than those in group B (18,756 versus 23,450 RMB, P=0.0001). However, there were no notable differences observed in the following: SFRs between the groups at 1 month postoperatively (84.0%, 100/119 of group A versus 85.5%, 106/124 of group B, P=0.895), complications rates (20.1%, 26/124 in group A versus 20.1%, 23/114 in group B, P=0.597), and re-operation rates (15.1%, 18/119 in group A versus 16.9%, 21/124 in group B, P=0.558).

conclusionsThese results indicated that fURS without preoperative ureteral stent placement is safe and effective for the treatment of upper urinary calculi.

Indexed as

Flexible ureteroscopy (fURS)upper urinary calculiureteral stenturology

Identifiers

PMID33457244
PMCPMC7807313
OpenAlexW3111686542

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.