{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,9]],"date-time":"2026-03-09T04:38:46Z","timestamp":1773031126603,"version":"3.50.1"},"reference-count":50,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2020,9,19]],"date-time":"2020-09-19T00:00:00Z","timestamp":1600473600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Echocardiography"],"published-print":{"date-parts":[[2020,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Stress echocardiography (SE) is an established technique for assessment of coronary artery disease (CAD) which is difficult to perform and interpret. Left ventricular stroke volume (SV) is readily estimated with Doppler echocardiography. It can be affected by myocardial ischemia, with possible adjunctive value during SE.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Patients underwent Bruce protocol SE with SV estimated before and after maximal treadmill exertion post routine regional wall analysis. Incremental change in SV (\u0394SV) with exercise was measured.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>A derivation cohort (n\u00a0=\u00a0273) was established to test the hypothesis. An optimal cutoff for detection on inducible ischemia was \u0394SV \u2264 +10\u00a0mL. The validation cohort of consecutive patients (n\u00a0=\u00a01093, 376 [34%] female; age 59\u00a0\u00b1\u00a012\u00a0years) were followed clinically after SE for 20\u00a0460 patient\u2010months. There were 1000 patients with nonischemic SE, and 93 patients with studies suggestive of myocardial ischemia. Secondary analysis yielded 831 patients with a normal exercise response (\u0394SV\u00a0&gt;\u00a0+10\u00a0mL) and 192 with an abnormal \u0394SV \u2264 +10\u00a0mL. Time to first combined adverse cardiac event (composite of angina, acute coronary syndrome, cardiac revascularization, worsening New York Heart Association (NYHA) class, a reduction in EF, and cardiovascular death) was analyzed and adjusted using Cox proportional hazards regression. The hazard ratio for an adverse event with an abnormal \u0394SV response (\u226410\u00a0mL) was 10.3 (95% confidence intervals 5.6\u201019.1, <jats:italic>P<\/jats:italic>\u00a0&lt;\u00a0.0001).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Stroke volume assessment during SE is feasible and readily performed. It is simple, practical, and has incremental diagnostic and prognostic value when added to exercise regional wall\u2010motion analysis.<\/jats:p><\/jats:sec>","DOI":"10.1111\/echo.14863","type":"journal-article","created":{"date-parts":[[2020,9,19]],"date-time":"2020-09-19T07:38:45Z","timestamp":1600501125000},"page":"1809-1819","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["The prognostic value of estimating stroke volume before and after exercise during treadmill stress echocardiography"],"prefix":"10.1111","volume":"37","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2113-6321","authenticated-orcid":false,"given":"Benjamin T.","family":"Fitzgerald","sequence":"first","affiliation":[{"name":"GenesisCare Cardiology Auchenflower QLD Australia"},{"name":"The Wesley Hospital Auchenflower QLD Australia"},{"name":"The Prince Charles Hospital Brisbane QLD 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