Evidence map›Paper›PMID 42016160›Full record

ArticleJournal of vascular surgery cases and innovative techniques2026

Secondary hemodialysis catheter malposition associated with azygos vein dilation in the setting of acute hemodynamic changes.

Masato Obayashi, Toru Iwahashi, Shun Suzuki, Toshiki Fujiyoshi, Ikki Kojima, Yusuke Shimahara

Abstract readCase Reports
PubMed Full text at PMC Publisher
In one paragraph

Article in Journal of vascular surgery cases and innovative techniques, 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.

Masato ObayashiNurse Practitioner Management Office, Department of Clinical Support, Tokyo Medical University Hospital, Tokyo, Japan.
Toru IwahashiDepartment of Cardiovascular Surgery, Tokyo Medical University Hospital, Tokyo, Japan.
Shun SuzukiDepartment of Cardiovascular Surgery, Tokyo Medical University Hospital, Tokyo, Japan.
Toshiki FujiyoshiDepartment of Cardiovascular Surgery, Tokyo Medical University Hospital, Tokyo, Japan.
Ikki KojimaDepartment of Cardiovascular Surgery, Tokyo Medical University Hospital, Tokyo, Japan.
Yusuke ShimaharaDepartment of Cardiovascular Surgery, Tokyo Medical University Hospital, Tokyo, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We report a case of secondary hemodialysis catheter migration into the azygos vein in a 53-year-old critically ill woman. Despite correct initial catheter placement under fluoroscopy, the catheter tip migrated into the azygos arch 4 hours later. Retrospective imaging revealed that the azygos arch had dilated from 3.4 mm to 9.2 mm, likely associated with high positive-pressure ventilation and fluid overload. This case suggests that azygos vein dilation during various procedures may contribute to catheter malposition. These findings indicate that, in critically ill patients, initial imaging alone may be insufficient for accurate catheter placement, suggesting the importance of continuous postprocedural monitoring.

Indexed as

Acquired dilationAzygos veinCatheter malpositionHemodialysis catheterSecondary migration

Identifiers

PMID42016160
PMCPMC13092477

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.