{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T15:47:43Z","timestamp":1790869663656,"version":"4.1.0"},"reference-count":31,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"15","content-domain":{"domain":["www.ahajournals.org"],"crossmark-restriction":true},"short-container-title":["Circulation"],"published-print":{"date-parts":[[2008,4,15]]},"abstract":"<jats:p>\n                    <jats:bold>\n                      <jats:italic>Background\u2014<\/jats:italic>\n                    <\/jats:bold>\n                    Percutaneous pulmonary valve implantation was introduced in the year 2000 as a nonsurgical treatment for patients with right ventricular outflow tract dysfunction.\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:bold>\n                      <jats:italic>Methods and Results\u2014<\/jats:italic>\n                    <\/jats:bold>\n                    Between September 2000 and February 2007, 155 patients with stenosis and\/or regurgitation underwent percutaneous pulmonary valve implantation. This led to significant reduction in right ventricular systolic pressure (from 63\u00b118 to 45\u00b113 mm Hg,\n                    <jats:italic>P<\/jats:italic>\n                    &lt;0.001) and right ventricular outflow tract gradient (from 37\u00b120 to 17\u00b110 mm Hg,\n                    <jats:italic>P<\/jats:italic>\n                    &lt;0.001). Follow-up ranged from 0 to 83.7 months (median 28.4 months). Freedom from reoperation was 93% (\u00b12%), 86% (\u00b13%), 84% (\u00b14%), and 70% (\u00b113%) at 10, 30, 50, and 70 months, respectively. Freedom from transcatheter reintervention was 95% (\u00b12%), 87% (\u00b13%), 73% (\u00b16%), and 73% (\u00b16%) at 10, 30, 50, and 70 months, respectively. Survival at 83 months was 96.9%. On time-dependent analysis, the first series of 50 patients (log-rank test\n                    <jats:italic>P<\/jats:italic>\n                    &lt;0.001) and patients with a residual gradient &gt;25 mm Hg (log-rank test\n                    <jats:italic>P<\/jats:italic>\n                    =0.01) were associated with a higher risk of reoperations.\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:bold>\n                      <jats:italic>Conclusions\u2014<\/jats:italic>\n                    <\/jats:bold>\n                    Percutaneous pulmonary valve implantation resulted in the ability to avoid surgical right ventricular outflow tract revision in the majority of cases. This procedure might reduce the number of operations needed over the total lifetime of patients with right ventricle\u2013to\u2013pulmonary artery conduits.\n                  <\/jats:p>","DOI":"10.1161\/circulationaha.107.735779","type":"journal-article","created":{"date-parts":[[2008,4,7]],"date-time":"2008-04-07T20:53:31Z","timestamp":1207601611000},"page":"1964-1972","update-policy":"https:\/\/doi.org\/10.1161\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":407,"title":["Percutaneous Pulmonary Valve Implantation"],"prefix":"10.1161","volume":"117","author":[{"given":"Philipp","family":"Lurz","sequence":"first","affiliation":[{"name":"From the UCL Institute of Child Health (P.L., L.C., S.K., J.N., S.S., V.M., G.D., S.C., V.T., J.D., A.M.T., P.B.), London, United Kingdom; Great Ormond Street Hospital for Children NHS Trust (P.L., L.C., S.K., J.N., S.S., V.M., T.Y.L., G.P., G.D., V.T., J.D., A.M.T., P.B.), Cardiothoracic Unit, London, United Kingdom; Service de Cardiologie Pe\u0301diatrique (Y.B.), Ho\u0302spital Necker Enfants Malades, Paris, France; and The Heart Hospital NHS Trust (S.C., F.W., V.T., J.D., P.B.), London, United Kingdom."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Louise","family":"Coats","sequence":"additional","affiliation":[{"name":"From the UCL Institute of Child Health (P.L., L.C., S.K., J.N., S.S., V.M., G.D., S.C., V.T., J.D., A.M.T., P.B.), London, United Kingdom; Great Ormond Street Hospital for Children NHS Trust (P.L., L.C., S.K., J.N., S.S., V.M., T.Y.L., G.P., G.D., V.T., J.D., A.M.T., P.B.), Cardiothoracic Unit, London, United Kingdom; Service de Cardiologie Pe\u0301diatrique (Y.B.), Ho\u0302spital Necker Enfants Malades, Paris, France; and The Heart Hospital NHS Trust (S.C., F.W., V.T., J.D., P.B.), London, United Kingdom."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sachin","family":"Khambadkone","sequence":"additional","affiliation":[{"name":"From the UCL Institute of Child Health (P.L., L.C., S.K., J.N., S.S., V.M., G.D., S.C., V.T., J.D., A.M.T., P.B.), London, United Kingdom; 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Great Ormond Street Hospital for Children NHS Trust (P.L., L.C., S.K., J.N., S.S., V.M., T.Y.L., G.P., G.D., V.T., J.D., A.M.T., P.B.), Cardiothoracic Unit, London, United Kingdom; Service de Cardiologie Pe\u0301diatrique (Y.B.), Ho\u0302spital Necker Enfants Malades, Paris, France; and The Heart Hospital NHS Trust (S.C., F.W., V.T., J.D., P.B.), London, United Kingdom."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Silvia","family":"Schievano","sequence":"additional","affiliation":[{"name":"From the UCL Institute of Child Health (P.L., L.C., S.K., J.N., S.S., V.M., G.D., S.C., V.T., J.D., A.M.T., P.B.), London, United Kingdom; Great Ormond Street Hospital for Children NHS Trust (P.L., L.C., S.K., J.N., S.S., V.M., T.Y.L., G.P., G.D., V.T., J.D., A.M.T., P.B.), Cardiothoracic Unit, London, United Kingdom; Service de Cardiologie Pe\u0301diatrique (Y.B.), Ho\u0302spital Necker Enfants Malades, Paris, France; and The Heart Hospital NHS Trust (S.C., F.W., V.T., J.D., P.B.), London, United Kingdom."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vivek","family":"Muthurangu","sequence":"additional","affiliation":[{"name":"From the UCL Institute of Child Health (P.L., L.C., S.K., J.N., S.S., V.M., G.D., S.C., V.T., J.D., A.M.T., P.B.), London, United Kingdom; 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