Evidence map›Paper›PMID 41664660›Full record

ArticleJournal of surgical case reports2026

Double trouble: incidental finding of a duplicated ureter using intraureteral indocyanine green during laparoscopic colorectal surgery.

Jessica Falon, Fahaad Ahmed, Sanjna Vijayakumar, Edgardo Solis, Joseph Do Woong Choi, James Wei Tatt Toh

Abstract readCase Reports
In one paragraph

Article in Journal of surgical case reports, 2026. 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
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.

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.

Jessica FalonFaculty of Medicine and Health, University of Sydney, Science Rd, Camperdown NSW 2050, Australia.ORCID https://orcid.org/0000-0002-0917-3122
Fahaad AhmedFaculty of Medicine and Health, University of Sydney, Science Rd, Camperdown NSW 2050, Australia.ORCID https://orcid.org/0009-0002-2269-5264
Sanjna VijayakumarDepartment of Colorectal Surgery, Westmead Hospital, Cnr Hawkesbury Road and Darcy Road, Westmead NSW 2145, Australia.ORCID https://orcid.org/0009-0001-6680-9553
Edgardo SolisFaculty of Medicine and Health, University of Sydney, Science Rd, Camperdown NSW 2050, Australia.ORCID https://orcid.org/0000-0002-3098-603X
Joseph Do Woong ChoiFaculty of Medicine and Health, University of Sydney, Science Rd, Camperdown NSW 2050, Australia.ORCID https://orcid.org/0000-0001-9274-4821
James Wei Tatt TohFaculty of Medicine and Health, University of Sydney, Science Rd, Camperdown NSW 2050, Australia.ORCID https://orcid.org/0000-0002-0110-2629

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ureteric injury is a feared complication in colorectal surgery. Anomalous genitourinary anatomy is common, with duplication of the ureter present in up to 6% of patients. This may increase the risk of inadvertent injury. We describe a laparoscopic anterior resection performed for recurrent sigmoid diverticulitis, where there were difficulties visualizing the left ureter. Intraureteral indocyanine green (ICG) was instilled via a temporary ureteric stent to assist with its identification. This unexpectedly revealed a previously unrecognized narrow-caliber bifid ureter, and enabled both branches of the ureter to be protected from injury. The ureteric stent was removed at completion of the case. The patient experienced transient hematuria post-stent removal, with no other adverse events. Intraureteral ICG is a safe and effective method for intraoperative identification of the ureter, and should be considered particularly in cases where unfavorable anatomy or dense inflammatory adhesions prevent adequate visualization and safe dissection.

Indexed as

colorectal surgeryindocyanine greenlaparoscopic surgeryureteric injury

Identifiers

PMID41664660
PMCPMC12883058

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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.