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  • Title: Displacement of occluder as a rare complication of transcatheter closure of ventricular septal defect: A case report.
    Author: Chen R, Luo J, Deng X, Huang P.
    Journal: Medicine (Baltimore); 2018 Jul; 97(27):e11327. PubMed ID: 29979405.
    Abstract:
    RATIONALE: Ventricular septal defects are the most common congenital heart defect in children. As this method avoids sternotomy, the post-procedural morbidity is lower. However, transcatheter closure of perimembranous ventricular septal defects are still associated with complications such as arrhythmia (particularly, Atrioventricular Block), device embolization, atrioventricularvalve and/or aortic valves regurgitation, residual shunts. Some complications can be life threatening and require urgent surgical intervention. PATIENT CONCERNS: An 32-months-old boy was admitted for a significant precordial systolic murmur. The patient underwent transcatheter perimembranous ventricular septal defects closure. 12 months later, Transthoracic echocardiography revealed the device displaced, 4 mm shunt acrocss the ventricular septum and moderate tricuspid regurgitation detected. DIAGNOSIS: According to the echocardiography result, the patient was diagnosed with displacement of the ventricular septal defect occluder and tricuspid regurgitation. INTERVENTIONS: After the diagnosis, the patient underwent removal of the ventricular septal defect occluder and closure of the perimembranous ventricular septal defect. OUTCOMES: The post-operative recovery was uneventful. One year post-procedural follow-up transthoracic echocardiography showed there was no residual shunt and no tricuspid regurgitation. LESSONS: Transcatheter closure of Ventricular septal defects is an attractive alternative to surgery in simple perimembranous ventricular septal defects. Proper follow-up should be emphasized to the patient.
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