{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,3]],"date-time":"2026-02-03T03:25:07Z","timestamp":1770089107983,"version":"3.49.0"},"reference-count":46,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"4","content-domain":{"domain":["www.ahajournals.org"],"crossmark-restriction":true},"short-container-title":["Circ: Arrhythmia and Electrophysiology"],"published-print":{"date-parts":[[2018,4]]},"abstract":"<jats:sec>\n            <jats:title>Background:<\/jats:title>\n            <jats:p>The predictive value of interventricular versus intraventricular dyssynchrony for response to cardiac resynchronization therapy (CRT) remains unclear. We investigated the relative importance of both ventricular electrical substrate components for left ventricular (LV) hemodynamic function.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Methods and Results:<\/jats:title>\n            <jats:p>\n              First, we used the cardiovascular computational model CircAdapt to characterize the isolated effect of intrinsic interventricular and intraventricular activation on CRT response (\u0394LVdP\/dt\n              <jats:sub>max<\/jats:sub>\n              ). Simulated \u0394LVdP\/dt\n              <jats:sub>max<\/jats:sub>\n              (range: 1.3%\u201326.5%) increased considerably with increasing interventricular dyssynchrony. In contrast, the isolated effect of intraventricular dyssynchrony in either the LV or right ventricle was limited (\u0394LVdP\/dt\n              <jats:sub>max<\/jats:sub>\n              range: 12.3%\u201318.3% and 14.1%\u201315.7%, respectively). Effects of activation during biventricular pacing on \u0394LVdP\/dt\n              <jats:sub>max<\/jats:sub>\n              were small. Second, electrocardiographic imaging\u2013derived activation characteristics of 51 CRT candidates were used to personalize ventricular activation in CircAdapt. The individualized models were subsequently used to assess the accuracy of \u0394LVdP\/dt\n              <jats:sub>max<\/jats:sub>\n              prediction based on the electrical data. The model-predicted \u0394LVdP\/dt\n              <jats:sub>max<\/jats:sub>\n              was close to the actual value in patients with left bundle branch block (measured\u2212simulated: 2.7\u00b19.0%) when only intrinsic interventricular dyssynchrony was personalized. Among patients without left bundle branch block, \u0394LVdP\/dt\n              <jats:sub>max<\/jats:sub>\n              was systematically overpredicted by CircAdapt (measured\u2212simulated: 9.2\u00b17.1%). Adding intraventricular activation to the model did not improve the accuracy of the response prediction.\n            <\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusions:<\/jats:title>\n            <jats:p>Computer simulations revealed that intrinsic interventricular dyssynchrony is the dominant component of the electrical substrate driving the response to CRT. Intrinsic intraventricular dyssynchrony and any dyssynchrony during biventricular pacing play a minor role in this respect. This may facilitate patient-specific modeling for prediction of CRT response.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Clinical Trial Registration:<\/jats:title>\n            <jats:p>\n              URL:\n              <jats:ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"uri\" xlink:href=\"https:\/\/www.clinicaltrials.gov\">https:\/\/www.clinicaltrials.gov<\/jats:ext-link>\n              . Unique identifier: NCT01270646.\n            <\/jats:p>\n          <\/jats:sec>","DOI":"10.1161\/circep.117.005647","type":"journal-article","created":{"date-parts":[[2018,4,13]],"date-time":"2018-04-13T09:15:51Z","timestamp":1523610951000},"update-policy":"https:\/\/doi.org\/10.1161\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":28,"title":["Electrical Substrates Driving Response to Cardiac Resynchronization Therapy"],"prefix":"10.1161","volume":"11","author":[{"given":"Peter R.","family":"Huntjens","sequence":"first","affiliation":[{"name":"Electrophysiology and Heart Modeling Institute (LIRYC), Bordeaux University, Pessac, France (P.R.H., S.P., M.S., P.R., M.H., J.L., P.B.). Cardiac Electrophysiology and Cardiac Stimulation Team, Bordeaux University Hospital, Pessac, France (P.R.H., S.P., M.S., P.R., M.H., J.L., P.B.). Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, the Netherlands (P.R.H., M.S., J.W., F.W.P., T.D., J.L.)."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sylvain","family":"Ploux","sequence":"additional","affiliation":[{"name":"Electrophysiology and Heart Modeling Institute (LIRYC), Bordeaux University, Pessac, France (P.R.H., S.P., M.S., P.R., M.H., J.L., P.B.). Cardiac Electrophysiology and Cardiac Stimulation Team, Bordeaux University Hospital, Pessac, France (P.R.H., S.P., M.S., P.R., M.H., J.L., P.B.). Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, the Netherlands (P.R.H., M.S., J.W., F.W.P., T.D., J.L.)."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marc","family":"Strik","sequence":"additional","affiliation":[{"name":"Electrophysiology and Heart Modeling Institute (LIRYC), Bordeaux University, Pessac, France (P.R.H., S.P., M.S., P.R., M.H., J.L., P.B.). Cardiac Electrophysiology and Cardiac Stimulation Team, Bordeaux University Hospital, Pessac, France (P.R.H., S.P., M.S., P.R., M.H., J.L., P.B.). Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, the Netherlands (P.R.H., M.S., J.W., F.W.P., T.D., J.L.)."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"John","family":"Walmsley","sequence":"additional","affiliation":[{"name":"Electrophysiology and Heart Modeling Institute (LIRYC), Bordeaux University, Pessac, France (P.R.H., S.P., M.S., P.R., M.H., J.L., P.B.). Cardiac Electrophysiology and Cardiac Stimulation Team, Bordeaux University Hospital, Pessac, France (P.R.H., S.P., M.S., P.R., M.H., J.L., P.B.). Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, the Netherlands (P.R.H., M.S., J.W., F.W.P., T.D., J.L.)."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Philippe","family":"Ritter","sequence":"additional","affiliation":[{"name":"Electrophysiology and Heart Modeling Institute (LIRYC), Bordeaux University, Pessac, France (P.R.H., S.P., M.S., P.R., M.H., J.L., P.B.). Cardiac Electrophysiology and Cardiac Stimulation Team, Bordeaux University Hospital, Pessac, France (P.R.H., S.P., M.S., P.R., M.H., J.L., P.B.). Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, the Netherlands (P.R.H., M.S., J.W., F.W.P., T.D., J.L.)."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michel","family":"Haissaguerre","sequence":"additional","affiliation":[{"name":"Electrophysiology and Heart Modeling Institute (LIRYC), Bordeaux University, Pessac, France (P.R.H., S.P., M.S., P.R., M.H., J.L., P.B.). Cardiac Electrophysiology and Cardiac Stimulation Team, Bordeaux University Hospital, Pessac, France (P.R.H., S.P., M.S., P.R., M.H., J.L., P.B.). Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, the Netherlands (P.R.H., M.S., J.W., F.W.P., T.D., J.L.)."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Frits W.","family":"Prinzen","sequence":"additional","affiliation":[{"name":"Electrophysiology and Heart Modeling Institute (LIRYC), Bordeaux University, Pessac, France (P.R.H., S.P., M.S., P.R., M.H., J.L., P.B.). Cardiac Electrophysiology and Cardiac Stimulation Team, Bordeaux University Hospital, Pessac, France (P.R.H., S.P., M.S., P.R., M.H., J.L., P.B.). Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, the Netherlands (P.R.H., M.S., J.W., F.W.P., T.D., J.L.)."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tammo","family":"Delhaas","sequence":"additional","affiliation":[{"name":"Electrophysiology and Heart Modeling Institute (LIRYC), Bordeaux University, Pessac, France (P.R.H., S.P., M.S., P.R., M.H., J.L., P.B.). Cardiac Electrophysiology and Cardiac Stimulation Team, Bordeaux University Hospital, Pessac, France (P.R.H., S.P., M.S., P.R., M.H., J.L., P.B.). Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, the Netherlands (P.R.H., M.S., J.W., F.W.P., T.D., J.L.)."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joost","family":"Lumens","sequence":"additional","affiliation":[{"name":"Electrophysiology and Heart Modeling Institute (LIRYC), Bordeaux University, Pessac, France (P.R.H., S.P., M.S., P.R., M.H., J.L., P.B.). Cardiac Electrophysiology and Cardiac Stimulation Team, Bordeaux University Hospital, Pessac, France (P.R.H., S.P., M.S., P.R., M.H., J.L., P.B.). Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, the Netherlands (P.R.H., M.S., J.W., F.W.P., T.D., J.L.)."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pierre","family":"Bordachar","sequence":"additional","affiliation":[{"name":"Electrophysiology and Heart Modeling Institute (LIRYC), Bordeaux University, Pessac, France (P.R.H., S.P., M.S., P.R., M.H., J.L., P.B.). Cardiac Electrophysiology and Cardiac Stimulation Team, Bordeaux University Hospital, Pessac, France (P.R.H., S.P., M.S., P.R., M.H., J.L., P.B.). Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, the Netherlands (P.R.H., M.S., J.W., F.W.P., T.D., 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Evaluation"],"short-title":[],"issued":{"date-parts":[[2018,4]]},"references-count":46,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2018,4]]}},"alternative-id":["10.1161\/CIRCEP.117.005647"],"URL":"https:\/\/doi.org\/10.1161\/circep.117.005647","relation":{},"ISSN":["1941-3149","1941-3084"],"issn-type":[{"value":"1941-3149","type":"print"},{"value":"1941-3084","type":"electronic"}],"subject":[],"published":{"date-parts":[[2018,4]]},"assertion":[{"value":"2017-07-17","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2018-01-22","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2018-04-13","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e005647"}}