Evidence map›Paper›PMID 42079975›Full record

ArticleJTCVS open2026

Echocardiographic correlates of pressure-volume-derived indices: Advancing intraoperative assessment of right ventricular function.

Vahid Kiarad, Usman Ahmed, Paul Heerdt, Feroze Mahmood, Mehrak Moaddab, David Liu, Venkatachalam Senthilnathan, Masashi Kai, Louis Chu, Kamal Khabbaz

Abstract read
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In one paragraph

Article in JTCVS open, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

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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

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

10 authors.

Vahid KiaradDepartment of Anesthesia, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Mass.
Usman AhmedDepartment of Anesthesia, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Mass.
Paul HeerdtDepartment of Anesthesia, Yale University School of Medicine, New Haven, Conn.
Feroze MahmoodDepartment of Anesthesia, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Mass.
Mehrak MoaddabDepartment of Anesthesia, UMass Chan Medical School, Worcester, Mass.
David LiuDepartment of Cardiac Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Mass.
Venkatachalam SenthilnathanDepartment of Cardiac Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Mass.
Masashi KaiDepartment of Cardiac Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Mass.
Louis ChuDepartment of Cardiac Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Mass.
Kamal KhabbazDepartment of Cardiac Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Mass.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objectives: To evaluate the relationship between intraoperative 3-dimensional (3D) echocardiographic measures of right ventricular (RV) function and invasively derived RV-pulmonary arterial (RV-PA) coupling metrics obtained from single-beat end-systolic pressure-volume analysis, identify echocardiographic surrogates capable of discriminating impaired RV-PA coupling during cardiac surgery. Methods: In a prospective observational study of 78 adult patients undergoing cardiac surgery with transesophageal echocardiography and pulmonary artery catheter monitoring, RV volumes and functional indices were quantified using 3D TEE, whereas RV-PA coupling (Ees/Ea) was calculated using the V Results: Patients with impaired RV-PA coupling (28.2%) demonstrated significantly larger 3D end-systolic volume and reduced 3D ejection fraction (EF) and 4-dimensional-derived fractional area change (FAC) compared with those with preserved coupling. 3D EF showed the strongest correlation with coupling (ρ = 0.94, Conclusions: Intraoperative 3D volumetric indices, particularly 3D EF and FAC, may closely reflect invasively measured RV-PA coupling and potentially identify patients with impaired coupling. These findings may support the use of 3D echocardiography as a practical surrogate for intraoperative RV-PA coupling assessment during cardiac surgery.

Indexed as

3D echocardiographycardiac surgerypressure-volume analysisright ventricular functionRV-PA couplingventriculo-arterial interaction

Identifiers

PMID42079975
PMCPMC13131171

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