{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,17]],"date-time":"2026-09-17T10:01:20Z","timestamp":1789639280141,"version":"4.0.0"},"reference-count":16,"publisher":"SAGE Publications","license":[{"start":{"date-parts":[[2019,1,1]],"date-time":"2019-01-01T00:00:00Z","timestamp":1546300800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"funder":[{"DOI":"10.13039\/100007657","name":"Loyola University Chicago Stritch School of Medicine","doi-asserted-by":"crossref","id":[{"id":"10.13039\/100007657","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Clin Appl Thromb Hemost"],"published-print":{"date-parts":[[2019,1,1]]},"abstract":"<jats:p>\n                    Intermediate-risk pulmonary embolism (PE) has variable outcomes. Current risk stratification models lack the positive predictive value to identify patients at highest risk of PE-related mortality. We identified intermediate-risk PE patients who underwent catheter-based interventions and right heart catheterization (RHC) and identified those with low cardiac index (CI &lt; 2.2 L\/min\/m\n                    <jats:sup>2<\/jats:sup>\n                    ). We utilized regression models to identify echocardiographic predictors of low CI and Kaplan Meier curve to evaluate PE-related mortality when stratified by the echocardiographic predictor. Of 174 intermediate-risk PE patients, 41 underwent RHC. Within this cohort, 46.3% had low CI. Univariable linear regression identified right ventricular outflow tract velocity time integral (RVOT VTI), right\/left ventricular ratio, S prime, inferior vena cava diameter, and pulmonary artery systolic pressure as potential predictors of low CI. Multivariable linear regression identified RVOT VTI as significant predictor of low CI (\u03b2 coefficient 0.124, 95% confidence interval [CI]: 0.01-0.24, P = .034). Right ventricular outflow tract velocity time integral &lt;9.5 cm was associated with increased PE-related mortality, P = .002. A substantial proportion of intermediate-risk PE patients referred for catheter-based interventions had low CI despite normotension. Right ventricular outflow tract velocity time integral was a significant predictor of low CI. Low RVOT VTI was associated with increased PE-related mortality.\n                  <\/jats:p>","DOI":"10.1177\/1076029619886062","type":"journal-article","created":{"date-parts":[[2019,11,14]],"date-time":"2019-11-14T00:41:03Z","timestamp":1573692063000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":46,"title":["Right Ventricular Outflow Doppler Predicts Low Cardiac Index in Intermediate Risk Pulmonary Embolism"],"prefix":"10.1177","volume":"25","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4811-5267","authenticated-orcid":false,"given":"Yevgeniy","family":"Brailovsky","sequence":"first","affiliation":[{"name":"Division of Cardiology, Loyola University Chicago Stritch School of Medicine, Chicago, IL, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vladimir","family":"Lakhter","sequence":"additional","affiliation":[{"name":"Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ido","family":"Weinberg","sequence":"additional","affiliation":[{"name":"Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Katerina","family":"Porcaro","sequence":"additional","affiliation":[{"name":"Division of Cardiology, Loyola University Chicago Stritch School of Medicine, Chicago, IL, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jeremiah","family":"Haines","sequence":"additional","affiliation":[{"name":"Department of Medicine, Loyola University Chicago Stritch School of Medicine, Chicago, IL, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stephen","family":"Morris","sequence":"additional","affiliation":[{"name":"Department of Medicine, Loyola University Chicago Stritch School of Medicine, Chicago, IL, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dalila","family":"Masic","sequence":"additional","affiliation":[{"name":"Division of Pharmacology, Loyola University Chicago Stritch School of Medicine, Chicago, IL, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Erin","family":"Mancl","sequence":"additional","affiliation":[{"name":"Division of Pharmacology, Loyola University Chicago Stritch School of Medicine, Chicago, IL, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Riyaz","family":"Bashir","sequence":"additional","affiliation":[{"name":"Division of Cardiology, Temple University Hospital, Lewis Katz School of Medicine, Philadelphia, PA, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mohamad","family":"Alkhouli","sequence":"additional","affiliation":[{"name":"Divison of Cardiology, West Virginia University Heart and Vascular Institute, West Virginia University School of Medicine, Morgantown, WV, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kenneth","family":"Rosenfield","sequence":"additional","affiliation":[{"name":"Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Verghese","family":"Mathew","sequence":"additional","affiliation":[{"name":"Division of Cardiology, Loyola University Chicago Stritch School of Medicine, Chicago, IL, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"John","family":"Lopez","sequence":"additional","affiliation":[{"name":"Division of Cardiology, Loyola University Chicago Stritch School of Medicine, Chicago, IL, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carlos F.","family":"Bechara","sequence":"additional","affiliation":[{"name":"Division of Vascular surgery, Loyola University Chicago Stritch School of Medicine, Chicago, IL, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cara","family":"Joyce","sequence":"additional","affiliation":[{"name":"Department of Public Health Sciences, Loyola University Chicago, Stritch School of Medicine, Loyola University Chicago Stritch School of Medicine, Chicago, IL, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3465-2499","authenticated-orcid":false,"given":"Jawed","family":"Fareed","sequence":"additional","affiliation":[{"name":"Department of Pathology, Loyola University Chicago Stritch School of Medicine, Chicago, IL, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amir","family":"Darki","sequence":"additional","affiliation":[{"name":"Division of Cardiology, Loyola University Chicago Stritch School of Medicine, Chicago, IL, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2019,11,13]]},"reference":[{"key":"bibr1-1076029619886062","doi-asserted-by":"publisher","DOI":"10.1093\/eurheartj\/ehu283"},{"key":"bibr2-1076029619886062","doi-asserted-by":"publisher","DOI":"10.1016\/j.chest.2015.11.026"},{"key":"bibr3-1076029619886062","doi-asserted-by":"publisher","DOI":"10.1016\/j.amjmed.2018.07.035"},{"key":"bibr4-1076029619886062","doi-asserted-by":"publisher","DOI":"10.1164\/rccm.201311-2040OC"},{"key":"bibr5-1076029619886062","doi-asserted-by":"publisher","DOI":"10.1161\/CIR.0000000000000525"},{"key":"bibr6-1076029619886062","doi-asserted-by":"publisher","DOI":"10.1016\/j.echo.2010.05.010"},{"key":"bibr7-1076029619886062","doi-asserted-by":"publisher","DOI":"10.1016\/j.echo.2014.10.003"},{"key":"bibr8-1076029619886062","doi-asserted-by":"publisher","DOI":"10.1002\/1097-0142(1950)3:1<32::AID-CNCR2820030106>3.0.CO;2-3"},{"key":"bibr9-1076029619886062","doi-asserted-by":"crossref","DOI":"10.1007\/978-1-4419-1742-3","author":"Kleinbaum 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