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Echocardiographic estimation of pulmonary artery wedge pressure: invasive derivation, validation, and prognostic association beyond diastolic dysfunction grading
Clinical Physiology, Clinical Sciences, Lund University, Lund, Sweden; Department of Clinical Physiology, Växjö Central Hospital, Växjö, Sweden; Department of Research and Development, Region Kronoberg, Växjö, Sweden; Kolling Institute, Royal North Shore Hospital, University of Sydney, Kolling Building, St Leonards, Sydney, New South Wales, Australia.
Department of Cardiology, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden.
Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Klinisk fysiologi.ORCID-id: 0000-0002-8192-9166
Department of Clinical Physiology, Växjö Central Hospital, Växjö, Sweden; Department of Research and Development, Region Kronoberg, Växjö, Sweden.
Vise andre og tillknytning
2024 (engelsk)Inngår i: European Heart Journal Cardiovascular Imaging, ISSN 2047-2404, E-ISSN 2047-2412, Vol. 25, nr 4, s. 498-509Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Background and aims: Grading of diastolic function can be useful, but indeterminate classifications are common.

Objectives: We aimed to invasively derive and validate a quantitative echocardiographic estimation of pulmonary artery wedge pressure (PAWP), and to compare its prognostic performance to diastolic dysfunction grading.

Methods: Echocardiographic measures were used to derive an estimated PAWP (ePAWP) using multivariable linear regression in patients undergoing right heart catheterization (RHC). Prognostic associations were analyzed in the National Echocardiography Database of Australia (NEDA).

Results: In patients who had undergone both RHC and echocardiography within two hours (n=90), ePAWP was derived using left atrial volume index, mitral peak early velocity (E), and pulmonary vein systolic velocity (S). In a separate external validation cohort (n=53, simultaneous echocardiography and RHC), ePAWP showed good agreement with invasive PAWP (mean±SD difference 0.5±5.0 mmHg) and good diagnostic accuracy for estimating PAWP>15mmHg (area under the curve [95% confidence interval] 0.94 [0.88-1.00]). Among patients in NEDA (n=38,856, median [interquartile range] follow-up 4.8 [2.3-8.0] years, 2,756 cardiovascular deaths), ePAWP was associated with cardiovascular death even after adjustment for age, sex, and diastolic dysfunction grading (hazard ratio (HR) 1.08 [1.07-1.09] per mmHg) and provided incremental prognostic information to diastolic dysfunction grading (improved C-statistic from 0.65 to 0.68, p<0.001). Increased ePAWP was associated with worse prognosis across all grades of diastolic function (HR normal: 1.07 [1.06-1.09]; indeterminate: 1.08 [1.07-1.09]; abnormal: 1.08 [1.07-1.09], p<0.001 for all).

Conclusions: Echocardiographic ePAWP is an easily acquired continuous variable with good accuracy that associates with prognosis beyond diastolic dysfunction grading.

sted, utgiver, år, opplag, sider
Oxford University Press, 2024. Vol. 25, nr 4, s. 498-509
Emneord [en]
diastolic dysfunction, echocardiography, heart failure, pulmonary capillary wedge pressure
HSV kategori
Identifikatorer
URN: urn:nbn:se:umu:diva-217450DOI: 10.1093/ehjci/jead301ISI: 001108246300001PubMedID: 37949842Scopus ID: 2-s2.0-85184482944OAI: oai:DiVA.org:umu-217450DiVA, id: diva2:1816735
Forskningsfinansiär
Swedish Heart Lung Foundation, 20160787Swedish Heart Lung Foundation, 20200160Swedish Research Council, 2019-01338
Merknad

First published online: 9 November 2023

Tilgjengelig fra: 2023-12-04 Laget: 2023-12-04 Sist oppdatert: 2024-04-22bibliografisk kontrollert

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