{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T16:56:46Z","timestamp":1785430606712,"version":"3.56.0"},"reference-count":15,"publisher":"Cambridge University Press (CUP)","issue":"3","license":[{"start":{"date-parts":[[2026,4,6]],"date-time":"2026-04-06T00:00:00Z","timestamp":1775433600000},"content-version":"unspecified","delay-in-days":36,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":["cambridge.org"],"crossmark-restriction":true},"short-container-title":["Cardiol Young"],"published-print":{"date-parts":[[2026,3]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec id=\"S1047951126111329_as1\">\n                    <jats:title>Introduction:<\/jats:title>\n                    <jats:p>Atrial septal defect is a common CHD, and transcatheter closure is now the gold standard treatment. In an atrial septal defect, left-to-right shunting increases pulmonary blood flow. This study aimed to evaluate early changes in pulmonary artery, pulmonary vein, and inferior vena cava flow parameters following transcatheter closure of an atrial septal defect.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"S1047951126111329_as2\">\n                    <jats:title>Materials and methods:<\/jats:title>\n                    <jats:p>This retrospective study included 31 paediatric patients with haemodynamically significant atrial septal defect (Qp\/Qs \u2265 1.5) who underwent transcatheter closure between January 2023 and June 2024. Comprehensive echocardiography was performed 24 hours before and after the procedure. Pulmonary artery and pulmonary vein maximum and mean pressure gradients, velocities, velocity\u2013time integrals, inferior vena cava maximum and minimum diameters, and the inferior vena cava collapsibility index were analysed at both time points using standard transthoracic echocardiographic techniques.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"S1047951126111329_as3\">\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      When the data obtained were evaluated, it was observed that pulmonary artery maximum-mean pressure gradient (\n                      <jats:italic>p<\/jats:italic>\n                      &lt; 0.001), pulmonary artery maximum-mean velocity (\n                      <jats:italic>p<\/jats:italic>\n                      &lt; 0.001), pulmonary artery velocity\u2013time integral (\n                      <jats:italic>p<\/jats:italic>\n                      &lt; 0.001), pulmonary vein maximum pressure gradient (\n                      <jats:italic>p<\/jats:italic>\n                      &lt; 0.001), pulmonary vein mean pressure gradient (\n                      <jats:italic>p<\/jats:italic>\n                      &lt; 0.05), inferior vena cava maximum and minimum diameters (\n                      <jats:italic>p<\/jats:italic>\n                      &lt; 0.001) and inferior vena cava collapsibility index (\n                      <jats:italic>p<\/jats:italic>\n                      &lt; 0.05) decreased statistically significantly after transcatheter closure compared to before.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"S1047951126111329_as4\">\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>The duration of remodelling in both the right and left atrial structures following transcatheter atrial septal defect closure depends on the extent of early changes in flow parameters. Our findings suggest that the inferior vena cava collapsibility index may serve as a simple, non-invasive indicator for closure criteria in future studies.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1017\/s1047951126111329","type":"journal-article","created":{"date-parts":[[2026,4,6]],"date-time":"2026-04-06T11:14:51Z","timestamp":1775474091000},"page":"551-557","update-policy":"https:\/\/doi.org\/10.1017\/policypage","source":"Crossref","is-referenced-by-count":0,"title":["The inferior vena cava collapsibility index as a non-invasive marker of early haemodynamic changes following atrial septal defect closure"],"prefix":"10.1017","volume":"36","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6077-8717","authenticated-orcid":false,"given":"Rasit","family":"Aktas","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/038h97h67","id-type":"ROR","asserted-by":"publisher"}],"name":"Department of Pediatric Cardiology, Health Sciences University, Izmir Tepecik Education and Research Hospital"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nazmi","family":"Narin","sequence":"additional","affiliation":[{"name":"Izmir Katip Celebi University Faculty of Medicine"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4853-3829","authenticated-orcid":false,"given":"Onur","family":"Tasci","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/038h97h67","id-type":"ROR","asserted-by":"publisher"}],"name":"Department of Pediatric Cardiology, Health Sciences University, Izmir Tepecik Education and Research Hospital"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sedef","family":"Oksuz","sequence":"additional","affiliation":[{"name":"Ministry of Health Izmir City Hospital"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Muhammed Akif","family":"Atlan","sequence":"additional","affiliation":[{"name":"Ministry of Health Izmir City Hospital"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9722-6994","authenticated-orcid":false,"given":"Kaan","family":"Yildiz","sequence":"additional","affiliation":[{"name":"Ministry of Health Izmir City Hospital"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Melih","family":"Er","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/038h97h67","id-type":"ROR","asserted-by":"publisher"}],"name":"Department of Pediatric Cardiology, Health Sciences University, Izmir Tepecik Education and Research Hospital"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0529-2391","authenticated-orcid":false,"given":"Cem","family":"Karadeniz","sequence":"additional","affiliation":[{"name":"Izmir Katip Celebi University Faculty of Medicine"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2026,4,6]]},"reference":[{"key":"S1047951126111329_ref11","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijcard.2023.131399"},{"key":"S1047951126111329_ref4","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijcard.2005.10.008"},{"key":"S1047951126111329_ref6","doi-asserted-by":"publisher","DOI":"10.9734\/ca\/2022\/v11i4292"},{"key":"S1047951126111329_ref15","doi-asserted-by":"publisher","DOI":"10.1016\/j.cardfail.2009.08.004"},{"key":"S1047951126111329_ref9","doi-asserted-by":"publisher","DOI":"10.32604\/CHD.2021.016987"},{"key":"S1047951126111329_ref10","doi-asserted-by":"publisher","DOI":"10.1186\/s12947-016-0076-1"},{"key":"S1047951126111329_ref7","doi-asserted-by":"publisher","DOI":"10.3126\/njh.v19i1.45293"},{"key":"S1047951126111329_ref3","doi-asserted-by":"publisher","DOI":"10.1016\/j.jacc.2004.10.052"},{"key":"S1047951126111329_ref2","doi-asserted-by":"publisher","DOI":"10.1017\/S1047951121000500"},{"key":"S1047951126111329_ref12","doi-asserted-by":"publisher","DOI":"10.32677\/IJCH.2018.v05.i09.004"},{"key":"S1047951126111329_ref14","doi-asserted-by":"publisher","DOI":"10.1007\/s00246-020-02514-9"},{"key":"S1047951126111329_ref5","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijcard.2011.03.031"},{"key":"S1047951126111329_ref13","doi-asserted-by":"publisher","DOI":"10.1253\/circj.CJ-10-0690"},{"key":"S1047951126111329_ref8","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0128475"},{"key":"S1047951126111329_ref1","doi-asserted-by":"publisher","DOI":"10.1016\/S0735-1097(02)01886-7"}],"container-title":["Cardiology 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