ArticleCureus2025
Persistent Left Superior Vena Cava: Clinical and Procedural Challenges.
Article in Cureus, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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.
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.
Who cites it
2 citing papers in PubMed.
- Anatomical patterns and clinical outcomes of central venous catheter malpositions: A systematic review of published case reports and case series.Indian journal of anaesthesia · 2026Article
- Late Presentation of Isolated Persistent Left Superior Vena Cava with Absent Right Superior Vena Cava Manifesting as Heart Failure: A Case Report.International medical case reports journal · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Persistent left superior vena cava (PLSVC) is an under-recognized thoracic venous anomaly. It typically drains venous blood from the left arm and neck, and often terminates in the coronary sinus on the right side of the heart. Although often asymptomatic, PLSVC is frequently discovered incidentally during imaging or interventional procedures. This anatomical variation can pose challenges during procedures such as venous catheterization and pacemaker placement, due to its atypical drainage route. This report presents a case of PLSVC in a patient who underwent placement of a peripherally inserted central venous catheter through the left arm, aiming to raise awareness of this anatomical variation among healthcare professionals. It includes a brief review of the embryology and anatomy of PLSVC, emphasizing that improved recognition and understanding of this venous anomaly can enhance diagnostic accuracy and procedural safety.
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Registered trials
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.