Evidence mapPaperPMID 41520006Full record

ArticleScientific reports2026

Device-driven cyclic compression of the superior vena cava as a preload reduction strategy to improve cardiac function in heart failure: a pilot feasibility study.

Jeongwon Kim, Yongjin Kim, Jeonghyeon Lee, Domin Cho, Chang Jun Lee, Jae Hang Lee, Joon Seo Lim, Amy Kyungwon Han, Se Jin Oh

Abstract read
In one paragraph

Article in Scientific 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

9 authors.

Jeongwon KimDepartment of Thoracic and Cardiovascular Surgery, SMG-SNU Boramae Medical Center, Seoul National University College of Medicine, 20, Boramae-ro 5-gil, Dongjak-gu, Seoul, 07061, Republic of Korea.
Yongjin KimDepartment of Mechanical Engineering, Seoul National University College of Engineering, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.
Jeonghyeon LeeDepartment of Mechanical Engineering, Seoul National University College of Engineering, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.
Domin ChoDepartment of Mechanical Engineering, Seoul National University College of Engineering, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.
Chang Jun LeeDepartment of Future Automotive Mobility, Seoul National University, Seoul, Republic of Korea.
Jae Hang LeeDepartment of Thoracic and Cardiovascular Surgery, Seoul National University Bundang Hospital, Seongnam-si, Gyeonggi-do, Republic of Korea.
Joon Seo LimClinical Research Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
Amy Kyungwon HanDepartment of Mechanical Engineering, Seoul National University College of Engineering, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea. amyhan@snu.ac.kr.
Se Jin OhDepartment of Thoracic and Cardiovascular Surgery, SMG-SNU Boramae Medical Center, Seoul National University College of Medicine, 20, Boramae-ro 5-gil, Dongjak-gu, Seoul, 07061, Republic of Korea. wpwnn@snu.ac.kr.

Funding

NAVER Corporation 3720242080Seoul National University and Seoul Metropolitan Government Seoul National University (SMG-SNU) Boramae Medical Center 04-2024-0041
6 · The paper itself

Abstract

We evaluated the physiological efficacy and safety of a novel device-based preload reduction strategy that applies external cyclic compression to the superior vena cava (SVC) in a preclinical heart failure model. Heart failure was induced in eleven pigs using ischemia-reperfusion injury, and a 3D-printed SVC compression device was tested under varying compression ratios (70%, 85%, and 100%) and protocols. Hemodynamic responses were monitored using right-heart catheterization and pressure-volume loop analysis. Among the tested conditions, cyclic compression at 85% with 20/5-minute compression-release cycles resulted in marked within-group improvements in key hemodynamic parameters. Cardiac output increased by 27.3% (3.83 to 4.88 L/min, Wilcoxon signed-rank test, p = 0.125) and stroke volume by 19.5% (38.6 to 46.1 mL, p = 0.125), while mean arterial and pulmonary pressures remained stable. Systemic vascular resistance decreased by 29.0% (from 1,200 to 852 dyn·s·cm

Indexed as

Heart FailureVena Cava, SuperiorAnimalsCardiac OutputDisease Models, AnimalFeasibility StudiesFemaleHemodynamicsPilot ProjectsStroke VolumeSwineVascular ResistanceHeart failureHemodynamicsPreloadVena cava

Identifiers

PMID41520006
PMCPMC12877083

What Socratic holds

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LicenceCC BY-NC-ND
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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 Socratic graph.