Evidence map›Paper›PMID 29974220›Full record

ArticleEuropean radiology2019

Comparison of single and tandem ureteral stenting for malignant ureteral obstruction: a prospective study of 104 patients.

Kao-Lang Liu, Bo-Ching Lee, Jian-De Ye, Yu-Hsuan Chang, Chin-Chen Chang, Kuo-How Huang, Yuan-Ju Lee, Yeun-Chung Chang

Abstract readComparative StudyControlled Clinical Trial
PubMed Publisher
In one paragraph

Article in European radiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 11% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Pooled it
  2. Urologic oncologic emergencies: a radiologist's guide.Abdominal radiology (New York) · 2026
    Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Quality of life with tandem ureteral stents compared to percutaneous nephrostomy for malignant ureteral obstruction.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2022
    Review
  9. Magnetic resonance imaging of in vitro urine flow in single and tandem stented ureters subject to extrinsic ureteral obstruction.International journal of urology : official journal of the Japanese Urological Association · 2022
    Article
  10. Article
  11. Article
  12. Article
  13. 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

8 authors at 1 institution in 1 country.

Kao-Lang LiuDepartment of Medical Imaging, National Taiwan University Hospital and National Taiwan University College of Medicine, No.7, Chung-Shan South Road, Taipei, 100, Taiwan.
Bo-Ching LeeDepartment of Medical Imaging, National Taiwan University Hospital and National Taiwan University College of Medicine, No.7, Chung-Shan South Road, Taipei, 100, Taiwan. bclee@ntuh.gov.tw.ORCID http://orcid.org/0000-0002-1443-928X
Jian-De YeDepartment of Medical Imaging, National Taiwan University Hospital Yunlin Branch, No. 579, Sec. 2, Yunlin Rd, Douliu City, Yunlin County, 640, Taiwan.
Yu-Hsuan ChangDepartment of Medical Imaging, National Taiwan University Hospital and National Taiwan University College of Medicine, No.7, Chung-Shan South Road, Taipei, 100, Taiwan.
Chin-Chen ChangDepartment of Medical Imaging, National Taiwan University Hospital and National Taiwan University College of Medicine, No.7, Chung-Shan South Road, Taipei, 100, Taiwan.
Kuo-How HuangDepartment of Urology, National Taiwan University Hospital and National Taiwan University College of Medicine, No.7, Chung-Shan South Road, Taipei, 100, Taiwan.
Yuan-Ju LeeDepartment of Urology, National Taiwan University Hospital and National Taiwan University College of Medicine, No.7, Chung-Shan South Road, Taipei, 100, Taiwan.
Yeun-Chung ChangDepartment of Medical Imaging, National Taiwan University Hospital and National Taiwan University College of Medicine, No.7, Chung-Shan South Road, Taipei, 100, Taiwan.
National Taiwan University Hospital · TW

Funding

Ministry of Science and Technology, Taiwan (MOST 105-2314-B-002-092)
6 · The paper itself

Abstract

objectivesThe aim of this study was to compare single and tandem ureteral stenting in the management of malignant ureteral obstruction (MUO).

methodsOur hospital's institutional review board approved this prospective study. Between November 2014 and June 2017, single ureteral stenting was performed in 56 patients (94 renal units) and tandem ureteral stenting in 48 patients (63 renal units) for MUO. A comparative analysis of the technical success rate, patient survival, stent patency, and complications was performed.

resultsSimilar demographic data were observed in patients receiving either single or tandem ureteral stenting. The technical success rate was 93.6% (88/94) for single ureteral stenting and 95.2% (60/63) for tandem ureteral stenting. There was no difference in overall survival between patients receiving single or tandem ureteral stenting (p = 0.41), but the duration of stent patency in tandem ureteral stenting was significantly longer (p = 0.022). The mean patency time was 176.7 ± 21.3 days for single ureteral stenting, and 214.7 ± 21.0 days for tandem ureteral stenting. The complications of ureteral stenting were urinary tract infection (n = 18), lower urinary tract symptoms (n = 5), haematuria (n = 3), and stent migration (n = 1).

conclusionsTandem ureteral stenting is a safe and feasible treatment for MUO, and had better efficacy compared to single ureteral stenting. KEY POINTS: • Ureteral stenting is an established treatment for the management of malignant ureteral obstruction (MUO) • Prospective single-centre study showed that tandem ureteral stenting is a safe and feasible treatment for MUO • Tandem ureteral stenting provides longer stent patency compared to single ureteral stenting in patient with MUO.

Indexed as

StentsAdultAgedFemaleHematuriaHumansLower Urinary Tract SymptomsMaleMiddle AgedNeoplasmsPalliative CareProspective StudiesUltrasonography, InterventionalUreterUreteral ObstructionUrinary Tract InfectionsHumansHydronephrosisProspective studiesStentsUreteral obstruction

Identifiers

PMID29974220
OpenAlexW2810079328

What OpenQuestion holds

Textmetadata
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.