Safety and one-year follow-up analysis of percutaneous ASD closure at a tertiary care hospital

Aim: This study was designed to evaluate the safety and effectiveness of the Cocoon Septal Occluder device (Vascular Innovations Co. Nonthaburi, Thailand) for transcatheter closure of isolated secundum type atrial septal defect (ASD) in Indian patients. Methods: This was a single-center, retrospecti...

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Main Authors: Naga Raghunandan Thota, Kamalakar Kosaraju, John Satish Rudrapogu, Krishna Prasad Nevali, Thirupathi Rao Kondaveeti
Format: Article
Language:English
Published: Elsevier 2025-05-01
Series:Indian Heart Journal
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Online Access:http://www.sciencedirect.com/science/article/pii/S0019483225000574
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author Naga Raghunandan Thota
Kamalakar Kosaraju
John Satish Rudrapogu
Krishna Prasad Nevali
Thirupathi Rao Kondaveeti
author_facet Naga Raghunandan Thota
Kamalakar Kosaraju
John Satish Rudrapogu
Krishna Prasad Nevali
Thirupathi Rao Kondaveeti
author_sort Naga Raghunandan Thota
collection DOAJ
description Aim: This study was designed to evaluate the safety and effectiveness of the Cocoon Septal Occluder device (Vascular Innovations Co. Nonthaburi, Thailand) for transcatheter closure of isolated secundum type atrial septal defect (ASD) in Indian patients. Methods: This was a single-center, retrospective, observational study which included patients who underwent transcatheter closure of isolated secundum ASD using the Cocoon Septal Occluder between April 2014 and May 2023. Follow-up assessments up to one-year were conducted through review of hospital medical records, clinic visits, or via telephonic communication with primary care physicians. Results: A total of 400 patients were included in the study, consisting of 28 paediatric (aged ≤15 years, 8.14 ± 4.41 years) and 372 adult patients (40.83 ± 13.23 years). The mean defect diameter and device size were 16.75 ± 5.85 mm and 20.43 ± 6.24 mm for paediatric patients, and 21.62 ± 6.87 mm and 24.94 ± 7.28 mm for adult patients, respectively. The device was successfully implanted in all paediatric patients, achieving 100 % closure of the defect with no complications, which persisted through one-year follow-up. In the adult cohort, complete ASD closure was achieved in 99.2 % of patients, with two cases of device embolization and one case of device withdrawal. At one-year follow-up, adult patients experienced 0.3 % late device embolization, 0.8 % pericardial effusion/cardiac tamponade, 0.5 % atrioventricular block, and 0.5 % atrial flutter/fibrillation. No cases of endocarditis, haemolysis, nickel allergy, stroke/transient ischemic attack, or migraine were reported in either paediatric or adult patients. Conclusion: The results demonstrate that Cocoon Septal Occluder is safe and effective in closing isolated secundum ASD during one-year follow-up.
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spelling doaj-art-47cd4cfd507843eb8252acadbdc5b52c2025-08-20T02:07:58ZengElsevierIndian Heart Journal0019-48322025-05-0177319920310.1016/j.ihj.2025.03.011Safety and one-year follow-up analysis of percutaneous ASD closure at a tertiary care hospitalNaga Raghunandan Thota0Kamalakar Kosaraju1John Satish Rudrapogu2Krishna Prasad Nevali3Thirupathi Rao Kondaveeti4Corresponding author. NRI Medical College, Chinakakani, Andhra Pradesh, 522503, India.; Department of Cardiology, NRI Medical College, Chinakakani, Andhra Pradesh, 522503, IndiaDepartment of Cardiology, NRI Medical College, Chinakakani, Andhra Pradesh, 522503, IndiaDepartment of Cardiology, NRI Medical College, Chinakakani, Andhra Pradesh, 522503, IndiaDepartment of Cardiology, NRI Medical College, Chinakakani, Andhra Pradesh, 522503, IndiaDepartment of Cardiology, NRI Medical College, Chinakakani, Andhra Pradesh, 522503, IndiaAim: This study was designed to evaluate the safety and effectiveness of the Cocoon Septal Occluder device (Vascular Innovations Co. Nonthaburi, Thailand) for transcatheter closure of isolated secundum type atrial septal defect (ASD) in Indian patients. Methods: This was a single-center, retrospective, observational study which included patients who underwent transcatheter closure of isolated secundum ASD using the Cocoon Septal Occluder between April 2014 and May 2023. Follow-up assessments up to one-year were conducted through review of hospital medical records, clinic visits, or via telephonic communication with primary care physicians. Results: A total of 400 patients were included in the study, consisting of 28 paediatric (aged ≤15 years, 8.14 ± 4.41 years) and 372 adult patients (40.83 ± 13.23 years). The mean defect diameter and device size were 16.75 ± 5.85 mm and 20.43 ± 6.24 mm for paediatric patients, and 21.62 ± 6.87 mm and 24.94 ± 7.28 mm for adult patients, respectively. The device was successfully implanted in all paediatric patients, achieving 100 % closure of the defect with no complications, which persisted through one-year follow-up. In the adult cohort, complete ASD closure was achieved in 99.2 % of patients, with two cases of device embolization and one case of device withdrawal. At one-year follow-up, adult patients experienced 0.3 % late device embolization, 0.8 % pericardial effusion/cardiac tamponade, 0.5 % atrioventricular block, and 0.5 % atrial flutter/fibrillation. No cases of endocarditis, haemolysis, nickel allergy, stroke/transient ischemic attack, or migraine were reported in either paediatric or adult patients. Conclusion: The results demonstrate that Cocoon Septal Occluder is safe and effective in closing isolated secundum ASD during one-year follow-up.http://www.sciencedirect.com/science/article/pii/S0019483225000574Structural heart defectsCongenital anomaliesAtrial septumTranscatheter closureOccluders
spellingShingle Naga Raghunandan Thota
Kamalakar Kosaraju
John Satish Rudrapogu
Krishna Prasad Nevali
Thirupathi Rao Kondaveeti
Safety and one-year follow-up analysis of percutaneous ASD closure at a tertiary care hospital
Indian Heart Journal
Structural heart defects
Congenital anomalies
Atrial septum
Transcatheter closure
Occluders
title Safety and one-year follow-up analysis of percutaneous ASD closure at a tertiary care hospital
title_full Safety and one-year follow-up analysis of percutaneous ASD closure at a tertiary care hospital
title_fullStr Safety and one-year follow-up analysis of percutaneous ASD closure at a tertiary care hospital
title_full_unstemmed Safety and one-year follow-up analysis of percutaneous ASD closure at a tertiary care hospital
title_short Safety and one-year follow-up analysis of percutaneous ASD closure at a tertiary care hospital
title_sort safety and one year follow up analysis of percutaneous asd closure at a tertiary care hospital
topic Structural heart defects
Congenital anomalies
Atrial septum
Transcatheter closure
Occluders
url http://www.sciencedirect.com/science/article/pii/S0019483225000574
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