{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,19]],"date-time":"2026-04-19T08:25:43Z","timestamp":1776587143455,"version":"3.51.2"},"reference-count":19,"publisher":"Cambridge University Press (CUP)","issue":"2","license":[{"start":{"date-parts":[[2008,8,19]],"date-time":"2008-08-19T00:00:00Z","timestamp":1219104000000},"content-version":"unspecified","delay-in-days":3459,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Cardiol Young"],"published-print":{"date-parts":[[1999,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec id=\"S1047951100008349_sec01\"><jats:title>Background<\/jats:title><jats:p>Transcatheter closure of atrial septal defects is performed under fluoroscopy, but echocardiography has gained an important role in the procedure. With the new Amplatzer Septal Occluder a device has become available which is easy to implant with minimal fluoroscopy time. We developed an interventional procedure with this device under transesophageal echocardiography alone without fluoroscopy.<\/jats:p><\/jats:sec><jats:sec id=\"S1047951100008349_sec02\" sec-type=\"methods\"><jats:title>Methods and Results<\/jats:title><jats:p>Four patients (3 to 16 years of age, bodyweight 14 to 60 kg) with atrial septal defects centrally located in the oval fossa were elected for transcatheter closure. After sedation with midazolam and propofol a diagnostic and interventional catheterization was performed in all cases without fluoroscopy. Oxymetric shunt was Qp: Qs = 1.7 (1.5 to 2.1). Under transesophageal echocardiography, the defects were sized over the wire with a balloon catheter. Mean balloon stretched diameter was 10 mm (7 to 14 mm). Under transesophageal echocardiography an Amplatzer Septal Occluder was placed into the defect. In two patients this was achieved with a 5 MHz monoplane pediatric transducer, in two patients a 10mm 5 MHz multiplane probe was used. Complete closure was achieved in all patients and no complications were encountered.<\/jats:p><\/jats:sec><jats:sec id=\"S1047951100008349_sec03\" sec-type=\"conclusion\"><jats:title>Conclusion<\/jats:title><jats:p>We conclude that in selected cases with an atrial septal defect located in the oval fossa and clear-cut echocardiographic findings, an Amplatzer Septal Occluder can be safely deployed under echocardiographic guidance alone.<\/jats:p><\/jats:sec>","DOI":"10.1017\/s1047951100008349","type":"journal-article","created":{"date-parts":[[2008,8,31]],"date-time":"2008-08-31T20:10:57Z","timestamp":1220213457000},"page":"136-140","source":"Crossref","is-referenced-by-count":24,"title":["Transcatheter closure of atrial septal defects under echocardiographic guidance without X-ray: initial experiences"],"prefix":"10.1017","volume":"9","author":[{"given":"Peter","family":"Ewert","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ingo","family":"Daehnert","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Felix","family":"Berger","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andreas","family":"Kaestner","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gregor","family":"Krings","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michael","family":"Vogel","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peter E.","family":"Lange","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"56","published-online":{"date-parts":[[2008,8,19]]},"reference":[{"key":"S1047951100008349_ref019","doi-asserted-by":"publisher","DOI":"10.1159\/000176928"},{"key":"S1047951100008349_ref005","doi-asserted-by":"crossref","first-page":"277","DOI":"10.1017\/S1047951100004169","article-title":"Interventional closure of atrial septal defects with the Amplatzer device: first clinical experience","volume":"7","author":"Bjormstad","year":"1997","journal-title":"Cardiol Yong"},{"key":"S1047951100008349_ref011","doi-asserted-by":"publisher","DOI":"10.1007\/s002469900287"},{"key":"S1047951100008349_ref012","doi-asserted-by":"publisher","DOI":"10.1136\/hrt.47.1.41"},{"key":"S1047951100008349_ref006","doi-asserted-by":"publisher","DOI":"10.1016\/0002-8703(95)90046-2"},{"key":"S1047951100008349_ref016","first-page":"11","article-title":"Comparative effectiveness of the Sideris and Amplatzer septal occlusion devices {abstract}","volume":"9","author":"Walsh","year":"1998","journal-title":"Cardiol Young"},{"key":"S1047951100008349_ref007","first-page":"747","article-title":"Transcathere occlusion of atrial septal defects with the Amplatzer Septal Occluder {abstract in German}","volume":"85","author":"Ewert","year":"1988","journal-title":"Z Kardiol"},{"key":"S1047951100008349_ref015","first-page":"40","article-title":"Single\u2013center experience with three different atrial septal defect closure devices. 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