{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T19:09:13Z","timestamp":1790881753936,"version":"4.1.0"},"reference-count":17,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"5","content-domain":{"domain":["www.ahajournals.org"],"crossmark-restriction":true},"short-container-title":["Circulation"],"published-print":{"date-parts":[[2007,7,31]]},"abstract":"<jats:p>\n                    <jats:bold>\n                      <jats:italic>Background\u2014<\/jats:italic>\n                    <\/jats:bold>\n                    To facilitate the optimal timing of pulmonary valve replacement, we analyzed preoperative thresholds of right ventricular (RV) volumes above which no decrease or normalization of RV size takes place after surgery.\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:bold>\n                      <jats:italic>Methods and Results\u2014<\/jats:italic>\n                    <\/jats:bold>\n                    Between 1993 and 2006, 71 adult patients with corrected tetralogy of Fallot underwent pulmonary valve replacement in a nationwide, prospective follow-up study. Patients were evaluated with cardiovascular magnetic resonance both preoperatively and postoperatively. Changes in RV volumes were expressed as relative change from baseline. RV volumes decreased with a mean of 28%. RV ejection fraction did not change significantly after surgery (from 42\u00b110% to 43\u00b110%;\n                    <jats:italic>P<\/jats:italic>\n                    =0.34). Concomitant RV outflow tract reduction resulted in a 25% larger decrease of RV volumes. After correction for surgical RV outflow tract reduction, higher preoperative RV volumes (mL\/m\n                    <jats:sup>2<\/jats:sup>\n                    ) were independently associated with a larger decrease of RV volumes (RV end-diastolic volume: \u03b2=0.41;\n                    <jats:italic>P<\/jats:italic>\n                    &lt;0.001). Receiver operating characteristic analysis revealed a cutoff value of 160 mL\/m\n                    <jats:sup>2<\/jats:sup>\n                    for normalization of RV end-diastolic volume or 82 mL\/m\n                    <jats:sup>2<\/jats:sup>\n                    for RV end-systolic volume.\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:bold>\n                      <jats:italic>Conclusions\u2014<\/jats:italic>\n                    <\/jats:bold>\n                    Overall, we could not find a threshold above which RV volumes did not decrease after surgery. Preoperative RV volumes were independently associated with RV remodeling and also when corrected for a surgical reduction of the RV outflow tract. However, normalization could be achieved when preoperative RV end-diastolic volume was &lt;160 mL\/m\n                    <jats:sup>2<\/jats:sup>\n                    or RV end-systolic volume was &lt;82 mL\/m\n                    <jats:sup>2<\/jats:sup>\n                    .\n                  <\/jats:p>","DOI":"10.1161\/circulationaha.106.659664","type":"journal-article","created":{"date-parts":[[2007,7,9]],"date-time":"2007-07-09T20:57:58Z","timestamp":1184014678000},"page":"545-551","update-policy":"https:\/\/doi.org\/10.1161\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":552,"title":["Preoperative Thresholds for Pulmonary Valve Replacement in Patients With Corrected Tetralogy of Fallot Using Cardiovascular Magnetic Resonance"],"prefix":"10.1161","volume":"116","author":[{"given":"Thomas","family":"Oosterhof","sequence":"first","affiliation":[{"name":"From the Departments of Cardiology (T.O., B.J.B., B.J.M.M.), Radiology (A.S.), and Clinical Epidemiology and Biostatistics (A.H.Z.), Academic Medical Center, Amsterdam; Departments of Radiology (A.v.S., A.d.R.), Cardiology (H.W.V.), and Cardiothoracic Surgery (M.G.H.), Leiden University Medical Center; Department of Cardiology (F.J.M.), Erasmus Medical Center; Department of Cardiology (A.P.J.v.D.), St Radboud Medical Center, Nijmegen; and Department of Cardiology (B.J.M.M.), University Medical..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexander","family":"van Straten","sequence":"additional","affiliation":[{"name":"From the Departments of Cardiology (T.O., B.J.B., B.J.M.M.), Radiology (A.S.), and Clinical Epidemiology and Biostatistics (A.H.Z.), Academic Medical Center, Amsterdam; Departments of Radiology (A.v.S., A.d.R.), Cardiology (H.W.V.), and Cardiothoracic Surgery (M.G.H.), Leiden University Medical Center; Department of Cardiology (F.J.M.), Erasmus Medical Center; Department of Cardiology (A.P.J.v.D.), St Radboud Medical Center, Nijmegen; and Department of Cardiology (B.J.M.M.), University Medical..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hubert W.","family":"Vliegen","sequence":"additional","affiliation":[{"name":"From the Departments of Cardiology (T.O., B.J.B., B.J.M.M.), Radiology (A.S.), and Clinical Epidemiology and Biostatistics (A.H.Z.), Academic Medical Center, Amsterdam; Departments of Radiology (A.v.S., A.d.R.), Cardiology (H.W.V.), and Cardiothoracic Surgery (M.G.H.), Leiden University Medical Center; Department of Cardiology (F.J.M.), Erasmus Medical Center; Department of Cardiology (A.P.J.v.D.), St Radboud Medical Center, Nijmegen; and Department of Cardiology (B.J.M.M.), University Medical..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Folkert J.","family":"Meijboom","sequence":"additional","affiliation":[{"name":"From the Departments of Cardiology (T.O., B.J.B., B.J.M.M.), Radiology (A.S.), and Clinical Epidemiology and Biostatistics (A.H.Z.), Academic Medical Center, Amsterdam; Departments of Radiology (A.v.S., A.d.R.), Cardiology (H.W.V.), and Cardiothoracic Surgery (M.G.H.), Leiden University Medical Center; Department of Cardiology (F.J.M.), Erasmus Medical Center; Department of Cardiology (A.P.J.v.D.), St Radboud Medical Center, Nijmegen; and Department of Cardiology (B.J.M.M.), University Medical..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Arie P.J.","family":"van Dijk","sequence":"additional","affiliation":[{"name":"From the Departments of Cardiology (T.O., B.J.B., B.J.M.M.), Radiology (A.S.), and Clinical Epidemiology and Biostatistics (A.H.Z.), Academic Medical Center, Amsterdam; Departments of Radiology (A.v.S., A.d.R.), Cardiology (H.W.V.), and Cardiothoracic Surgery (M.G.H.), Leiden University Medical Center; Department of Cardiology (F.J.M.), Erasmus Medical Center; Department of Cardiology (A.P.J.v.D.), St Radboud Medical Center, Nijmegen; and Department of Cardiology (B.J.M.M.), University Medical..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anje M.","family":"Spijkerboer","sequence":"additional","affiliation":[{"name":"From the Departments of Cardiology (T.O., B.J.B., B.J.M.M.), Radiology (A.S.), and Clinical Epidemiology and Biostatistics (A.H.Z.), Academic Medical Center, Amsterdam; Departments of Radiology (A.v.S., A.d.R.), Cardiology (H.W.V.), and Cardiothoracic Surgery (M.G.H.), Leiden University Medical Center; Department of Cardiology (F.J.M.), Erasmus Medical Center; Department of Cardiology (A.P.J.v.D.), St Radboud Medical Center, Nijmegen; and Department of Cardiology (B.J.M.M.), University Medical..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Berto J.","family":"Bouma","sequence":"additional","affiliation":[{"name":"From the Departments of Cardiology (T.O., B.J.B., B.J.M.M.), Radiology (A.S.), and Clinical Epidemiology and Biostatistics (A.H.Z.), Academic Medical Center, Amsterdam; Departments of Radiology (A.v.S., A.d.R.), Cardiology (H.W.V.), and Cardiothoracic Surgery (M.G.H.), Leiden University Medical Center; Department of Cardiology (F.J.M.), Erasmus Medical Center; Department of Cardiology (A.P.J.v.D.), St Radboud Medical Center, Nijmegen; and Department of Cardiology (B.J.M.M.), University Medical..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Aeilko H.","family":"Zwinderman","sequence":"additional","affiliation":[{"name":"From the Departments of Cardiology (T.O., B.J.B., B.J.M.M.), Radiology (A.S.), and Clinical Epidemiology and Biostatistics (A.H.Z.), Academic Medical Center, Amsterdam; Departments of Radiology (A.v.S., A.d.R.), Cardiology (H.W.V.), and Cardiothoracic Surgery (M.G.H.), Leiden University Medical Center; Department of Cardiology (F.J.M.), Erasmus Medical Center; Department of Cardiology (A.P.J.v.D.), St Radboud Medical Center, Nijmegen; and Department of Cardiology (B.J.M.M.), University Medical..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mark G.","family":"Hazekamp","sequence":"additional","affiliation":[{"name":"From the Departments of Cardiology (T.O., B.J.B., B.J.M.M.), Radiology (A.S.), and Clinical Epidemiology and Biostatistics (A.H.Z.), Academic Medical Center, Amsterdam; Departments of Radiology (A.v.S., A.d.R.), Cardiology (H.W.V.), and Cardiothoracic Surgery (M.G.H.), Leiden University Medical Center; Department of Cardiology (F.J.M.), Erasmus Medical Center; Department of Cardiology (A.P.J.v.D.), St Radboud Medical Center, Nijmegen; and Department of Cardiology (B.J.M.M.), University Medical..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Albert","family":"de Roos","sequence":"additional","affiliation":[{"name":"From the Departments of Cardiology (T.O., B.J.B., B.J.M.M.), Radiology (A.S.), and Clinical Epidemiology and Biostatistics (A.H.Z.), Academic Medical Center, Amsterdam; Departments of Radiology (A.v.S., A.d.R.), Cardiology (H.W.V.), and Cardiothoracic Surgery (M.G.H.), Leiden University Medical Center; Department of Cardiology (F.J.M.), Erasmus Medical Center; Department of Cardiology (A.P.J.v.D.), St Radboud Medical Center, Nijmegen; and Department of Cardiology (B.J.M.M.), University Medical..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Barbara J.M.","family":"Mulder","sequence":"additional","affiliation":[{"name":"From the Departments of Cardiology (T.O., B.J.B., B.J.M.M.), Radiology (A.S.), and Clinical Epidemiology and Biostatistics (A.H.Z.), Academic Medical Center, Amsterdam; Departments of Radiology (A.v.S., A.d.R.), Cardiology (H.W.V.), and Cardiothoracic Surgery (M.G.H.), Leiden University Medical Center; Department of Cardiology (F.J.M.), Erasmus Medical Center; Department of Cardiology (A.P.J.v.D.), St Radboud Medical Center, Nijmegen; and Department of Cardiology (B.J.M.M.), University Medical..."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","reference":[{"key":"e_1_3_2_1_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0735-1097(00)00930-X"},{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1161\/01.cir.0000030995.59403.f8"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1093\/eurheartj\/ehl033"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejcts.2005.03.041"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.amjcard.2004.11.037"},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.1093\/eurheartj\/ehi581"},{"key":"e_1_3_2_7_2","first-page":"1135","volume":"17","year":"2001","unstructured":"Therrien J, Warnes C, Daliento L, Hess J, Hoffmann A, Marelli A, Thilen U, Presbitero P, Perloff J, Somerville J, Webb GD. 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