title: Amplatzer septal occluder-induced transient complete atrioventricular block.
abstract: Percutaneous transcatheter atrial septal defect (ASD) closure is a widely used technique that has replaced open-heart surgical closure in many centers. The most common implant is the Amplatzer septal occluder which seems to be a highly effective and safe device. However, there are reports of complications associated with its implantation. We report a 9-year-old boy who presented with complete atrioventricular block after undergoing percutaneous closure of a large secundum ASD with an Amplatzer septal occluder. We treated the patient with oral prednisolone. The patients atrioventricular conduction improved to second-degree Mobitz type 1 block on post-procedure day 24 and first-degree block on day 35. We conclude that patients with Amplatzer septal occluder-induced complete atrioventricular block generally have a good outcome, although it may take several weeks for improvement.
authors.affiliation: Department of Pediatrics, Mackay Memorial Hospital, Taipei, Taiwan.
authors.forename: Shan-Miao
authors.initials: SM
authors.lastname: Lin
authors.forename: Haw-Kwei
authors.initials: HK
authors.lastname: Hwang
authors.forename: Ming-Ren
authors.initials: MR
authors.lastname: Chen
mesh_terms: D000893:Anti-Inflammatory Agents / Q000627:therapeutic use; D054537:Atrioventricular Block / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000209:etiology*; D021721:Balloon Occlusion / Q000009:adverse effects*; D002648:Child; D017548:Echocardiography, Transesophageal; D004562:Electrocardiography; D006344:Heart Septal Defects, Atrial / Q000628:therapy*; D006801:Humans; D008297:Male; D011239:Prednisolone / Q000627:therapeutic use; D019736:Prostheses and Implants / Q000009:adverse effects*
chemical_list: D000893:Anti-Inflammatory Agents; D011239:Prednisolone