scholarly journals Transcatheter Closure of Atrial Septal Defect

Author(s):  
Omar Elsaka

Background: Over the past decade, percutaneous atrial septal defect (ASD) closure has been the preferred treatment option in many clinical programs for ASD. Percutaneous ASD closures with advanced device architecture and distribution have established user experience and process security. The ability to diagnose has also improved. The devices have evolved from the larger fixtures to the reset zone, being easily eliminated with little residual mesh material and comfortable fitting with the surrounding structures. Biodegradable technology has been introduced and will be considered as a future option. The emergence of the use of the ASD closure device over the last forty years includes improvements that reduce the incidence of adverse effects reported over the years. Issues reported in the literature include thrombus formation, air tightness, device insertion, abrasion, residual shunts and nickel hypersensitivity. Modern tools hold medium and long-term data with excellent results. Multi-sized devices securely close simple and complex ASDs that can re-scan, reset, and detect percutaneous advanced delivery procedures. In this review, the most widely used tools and distribution processes are discussed and the tools that show promise for the future. Conclusion: As the field of transcatheter treatment of atrial septal defects (TC-ASD) and congenital interventional cardiology develops, real-world design studies provide valuable developmental information on aspects of care where there is disagreement about best practices and more research is needed.

Author(s):  
Meisam Mokhtari ◽  
Zahra Khajali ◽  
Mona Heidarali ◽  
Majid Haghjoo

Atrial fibrillation (AF) is the most commonly treated arrhythmia in clinical practice and is often found in association with an atrial septal defect (ASD). However, ASD closure rarely confers complete arrhythmia control. A 23-year-old man presented to our center with frequent episodes of palpitations. AF was documented in 12-lead electrocardiography, and echocardiography showed a secundum-type ASD, 14 mm in size, with a significant left-to-right shunt. ASD closure was performed successfully with an ASD occluder device with no residual shunting. During follow-up, the patient experienced several episodes of AF. Thirteen months after the ASD closure, cryoballoon pulmonary vein isolation was done successfully with no complications. During a 12-month follow-up, he had no symptoms or AF recurrences, and echocardiography showed no residual shunting. This study showed that cryoballoon pulmonary vein isolation could be performed successfully without residual shunts in patients with ASD closure devices.


2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
Y F Li ◽  
Y M Xie ◽  
Z F Xie ◽  
S S Wang ◽  
B N Li ◽  
...  

Abstract Background closure of atrial septal defect (ASD) has emerged as the treatment of choice for the majority of defect. The biodegradable ASD closure device is a novel, absorbable device made of poly-L_latic acid (PLLA). This study evaluates the feasibility, safety and effectiveness of PLLA biodegradable ASD closure device in a swine model and for the first time in human. Objective The study reports on the 24- and 36- month follow-up results of PLLA device implanted in a swine model and the first-in- man experience with 6-month follow-up. Method Preclinical study was done in a swine ASD model. In a clinical setting, 5 pediatric patients with a secundum ASD who a clinically left-to-right shunt were enrolled in our center. Percutaneous ASD closure procedure with PLLA device was performed with fluoroscopic and transcatheter echocardiography (TTE) guidance. Procedure results and clinical outcomes at 1 day, 30 days, 3 months and 6 months after closure procedure were analyzed. Results 24- and 36-month follow-up results of preclinical study demonstrated that the PLLA device exhibited good endothelialization and degradability in a swine model. In clinical study, device implantation was successfully achieved in all of 5 patients (median age, 3.6 years; range, 3.1–6.5 years). The mean ASD size was (13.4±2.4)mm (range, 10–16mm). The mean pulmonary-to-systemic blood flow ratio (Qp:Qs) was (1.7±0.2):1 with a range of 1.5:1 to 2.0:1. The mean procedure time and the mean fluoroscopy time were (36.2±11.3) and (6.4±1.0)minutes, respectively. There was no evidence of short-term complications related to the device or the delivery system. No device dislodgement, significant aortic valve or mitral valve regurgitation, new onset cardiac arrhythmia, or other adverse events were reported. Characteristics and procedure data of the 5 patients who underwent ASD closure procedure with PLLA device Patient No. Age Weight Gender Defect size Qp:Qs Mean Pulmonary Pressure Device size (mm) Sheath (Fr) Procedure time Fluoroscopy time Immediate residual shunt (years) (kg) (mm) (mmHg) (mm) (Fr) (min) (min) 1 4.9 23.5 Male 17 1.7:1 22 24 12 52 7.6 None 2 3.1 10.0 Male 14 2.0:1 19 20 12 26 5.4 None 3 6.5 21.0 Male 15 1.8:1 22 20 12 31 6.0 None 4 3.2 14.5 Female 12 1.5:1 13 18 10 44 7.3 None 5 3.6 12.5 Male 10 1.5:1 17 14 10 28 5.5 None Conclusion This study is the first to demonstrate the feasibility, safety and effectiveness of PLLA biodegradable device in human, with no evidence of short-term complications and a high rate of early shunt closure. Acknowledgement/Funding National Key R&D Program of China (Grant Number: 2016 YFC1100305)


2021 ◽  
Vol 10 (18) ◽  
Author(s):  
Yasuhiro Tanabe ◽  
Tomomi Suzuki ◽  
Shingo Kuwata ◽  
Masaki Izumo ◽  
Hiromasa Kawaguchi ◽  
...  

Background Current guidelines recommend at least 6 months of antithrombotic therapy and antibiotic prophylaxis after septal‐occluding device deployment in transcatheter closure of atrial septal defect. It has been estimated that it takes ≈6 months for complete neo‐endothelialization; however, neo‐endothelialization has not previously been assessed in vivo in humans. Methods and Results The neointimal coverage of septal occluder devices was evaluated 6 months after implantation in 15 patients by angioscopy from the right atrium. Each occluder surface was divided into 9 areas; the levels of endothelialization in each area were semiquantitatively assessed by 4‐point grades. Device neo‐endothelialization was sufficient in two thirds of patients, but insufficient in one third. In the comparison between patients with sufficiently endothelialized devices of average grade score ≥2 (good endothelialization group, n=10) and those with poorly endothelialized devices of average grade score <2 (poor endothelialization group, n=5), those in the poor endothelialization group had larger devices deployed (27.0 mm [25.0–31.5 mm] versus 17.0 mm [15.6–22.5 mm], respectively) and progressive right heart dilatation. The endothelialization was poorer around the central areas. Moreover, the prevalence of thrombus formation on the devices was higher in the poorly endothelialized areas than in the sufficiently endothelialized areas (Grade 0, 94.1%; Grade 1, 63.2%; Grade 2, 0%; Grade 3, 1.6%). Conclusions Neo‐endothelialization on the closure devices varied 6 months after implantation. Notably, poor endothelialization and thrombus attachment were observed around the central areas and on the larger devices.


2019 ◽  
Vol 12 (5) ◽  
pp. e229478 ◽  
Author(s):  
Jacinta Ng ◽  
Teesha Downton ◽  
Natalie Davidson ◽  
James Marangou

An 18-year-old woman presented to our institution with fever, bilateral flank pain, headache and photophobia. She had a previous atrial septal defect (ASD) closure device inserted at the age of 9 years. Blood cultures on admission were positive forCorynebacterium diphtheriae, and transoesophageal echocardiogram (TOE) revealed an echodensity associated with the ASD closure device, most consistent with a vegetation. She was treated for infective endocarditis with 6 weeks of intravenous benzylpenicillin, and follow-up TOE showed resolution of the echodensity. To our knowledge, no cases ofC. diphtheriaeendocarditis of an ASD closure device have previously been reported.


2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
C Aggeli ◽  
I Dimitroglou ◽  
S Kastellanos ◽  
M Drakopoulou ◽  
K Moldovan ◽  
...  

Abstract Introduction In patients undergoing percutaneous closure of secundum atrial septal defect (ASD), device selection is based on defect sizing by transoesophageal echocardiography (TEE) and in particular 3D measurement as well as 2D balloon-stretched derived measurements. We sought to investigate whether in patients with the presence of the “halo sign”, defined as increased tissue thickness at the edge of the ASD rims, there is an agreement between the aforementioned sizing methods with a view to avoid balloon sizing. Methods Consecutive patients referred to our department for single ASD closure without complex anatomy were included in our study. TEE was performed in all patients before and during the intervention. 3D datasets for ASD quantification as well as X-PLANE data sets for measurement of balloon-stretched 2D dimensions were acquired and analysed offline. During the analysis of 3D datasets, researchers were blinded to the 2D balloon-stretched measurements. Patients were stratified according to the presence of the halo sign and the correlation between 3D dimensions and balloon-derived diameter was calculated. Results Thirty-eight patients (14 males, 36.8%) with median age 46 [32–56] were included in our study. The “halo sign” was present in 16 patients (42.1%). In the whole study population, the median maximal and median minimal diameter measured by 3D TEE were 1.79cm [1.54–2.10] and 1.57cm [1.15–2.00] respectively while median circumference and area were 5.26cm [4.14–6.44] and 2.20cm2 [1.25–3.30] respectively. Median balloon-stretched diameter was 1.8cm [1.4–2.1]. In patients with the “halo sign” there was no significant difference between the medians of the ASD diameter calculated from 3D measurements and the 2D derived diameter (1.53cm; 1.6cm, p=0.170) whereas in patients with no “halo sign” there was significant difference (1.79cm; 2.0cm, p=0.001) (figure 1). The discrepancy between the aforementioned diameters was significantly lower in patients with the halo sign (0.04cm; 0.19cm, p=0.001). There was a good correlation between closure device size and 3D derived ASD circumference in the whole study population (R2=0.897) which was even higher in patients with the halo sign (R2=0.981). In this subgroup, the selected size of the closure device would not have differed significantly even without balloon sizing (p=0.414). Figure 1 Conclusion The ASD sizing by 3D echocardiography is accurate in patients with the “halo sign”. This study justifies further investigation concerning the reliability of 3D imaging in this population for the selection of the ASD device size with a view to avoid balloon sizing, decrease procedural time and thus simplify the procedure.


EP Europace ◽  
2019 ◽  
Vol 21 (11) ◽  
pp. 1663-1669 ◽  
Author(s):  
Koji Nakagawa ◽  
Teiji Akagi ◽  
Satoshi Nagase ◽  
Yoichi Takaya ◽  
Yasufumi Kijima ◽  
...  

Abstract Aims There is no valid treatment strategy for addressing paroxysmal atrial fibrillation (AF) in patients with unclosed atrial septal defect (ASD). We aimed to assess the efficacy of catheter ablation (CA) compared with transcatheter ASD closure alone for treating pre-existing paroxysmal AF in patients with ASD. Methods and results Among 908 patients who underwent transcatheter ASD closure, we evaluated 50 consecutive patients (63 ± 12 years) with paroxysmal AF. We compared the AF outcomes of these patients after transcatheter ASD closure between those with and without CA prior to ASD closure. Thirty (60%) patients underwent CA. During the follow-up period after ASD closure (mean: 49 ± 23 months), recurrence of AF was observed in 6/30 (20%) patients with upfront CA and 12/20 (60%) patients with ASD closure alone. Kaplan–Meier analysis showed that the AF-free survival rate was significantly higher for patients with CA than for those with ASD closure alone (79% vs. 37% at 5 years, P = 0.002). Upfront CA and previous heart failure hospitalization were associated with recurrence of AF after ASD closure [hazard ratio (HR) 0.18, 95% confidence interval (CI) 0.06–0.53; P = 0.002 and HR 4.64, 95% CI 1.60–13.49; P = 0.005, respectively]. Conclusion In ASD patient with paroxysmal AF, transcatheter ASD closure alone demonstrated high AF recurrence rate after ASD closure. On the other hand, upfront CA prior to ASD closure substantially suppressed AF recurrence over the long term. A combination of CA and transcatheter ASD closure may be a feasible treatment strategy for paroxysmal AF in patients with ASD.


2020 ◽  
Vol 2020 ◽  
pp. 1-5
Author(s):  
R. J. R. Snijder ◽  
L. E. Renes ◽  
D. Bosshardt ◽  
M. J. Suttorp ◽  
J. M. ten Berg ◽  
...  

Purpose. The Occlutech Figulla occluder has been proven safe and effective at midterm follow-up after percutaneous atrial septal defect (ASD) closure. We describe the safety and efficacy at long-term follow-up in adults. Methods. All consecutive adult patients that underwent ASD closure between 2008 and 2015 were included. All complications were registered. Residual left-to-right shunt (LRS) was diagnosed using color-Doppler transthoracic echocardiography (TTE). Right-to-left shunting was diagnosed using contrast TTE. Successful closure was defined as no LRS at follow-up. Results. In total, 166 patients (mean age 56.7 ± 16.1 years; 62% female) underwent percutaneous ASD closure using the Occlutech Flex I (70%) or Flex II (30%) device (diameter 24 mm; range 10–40 mm) under general anaesthesia and transoesophageal echocardiographic guidance. Long-term follow-up data were available for 144 patients (87%) with a mean follow-up of 5.9 ± 2.6 years, a total of 814 patient-years. During hospitalization, device embolization occurred in three patients (1.8%) with successful extraction in all. During the long-term follow-up, 15 patients (9.8%) suffered new-onset atrial fibrillation and stroke occurred in 2.1%. There was no residual LRS at 12-month follow-up. No device embolization occurred during the long-term follow-up. Conclusion. Percutaneous ASD closure using the Occlutech device appears to be safe at long-term follow-up with a high successful closure rate at one year.


Author(s):  
Sudheer Venkata Bolinera ◽  
Srinivas Soma ◽  
Sanivarapu Srinivasa Reddy ◽  
Vijaya Pamidimukkala ◽  
Michael Naronha ◽  
...  

Though percutaneous transcatheter atrial septal defect closure with newer generation occluder devices is a standard treatment at present, these devices have significant long-term risks (>1 year) associated with such as thrombus formation. Here, we present a case of 28 year-old patient presented with few symptoms and had a history of ASD device closure using amplatzer septal occluder device five years back. The patient was found to have a large thrombus (30×33 mm) attached to the device which was managed using anticoagulants and patients was advised for regular echocardiographic follow-up.


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