Project description:BackgroundInterventricular septal perforation is an extremely rare complication of radiofrequency ablation (RFA), with an incidence of 1%. The most common mechanism is a 'steam pop', which can be described as 'mini-explosions' of gas bubbles. Data for percutaneous repair of cardiac perforations due to RFA are limited.Case summaryA 78-year-old female patient was referred to our department for the treatment of two iatrogenic ventricular septal defects (VSDs) following radiofrequency ablation (RFA) of premature ventricular contractions. One week post-ablation, chest pain and progressive dyspnoea occurred. Transthoracic echocardiography detected a VSD, diameter 10 mm. Hence, iatrogenic, RFA-related myocardial injury was considered the most likely cause of VSD, and the patient was referred to our tertiary care centre for surgical repair. Cardiovascular magnetic resonance (CMR) imaging demonstrated border-zone oedema of the VSD only and confirmed the absence of necrotic tissue boundaries, and the patient was deemed suitable for percutaneous device closure. Laevocardiography identified an additional, smaller muscular defect that cannot be explained by analysing the Carto-Map. Both defects could be successfully closed percutaneously using two Amplatzer VSD occluder devices.DiscussionIn conclusion, this case demonstrates a successful percutaneous closure of a VSD resulting from RFA using an Amplatzer septal occluder device. CMR might improve tissue characterization of the VSD borders and support the decision if to opt for interventional or surgical closure.
Project description:BackgroundPostinfarction ventricular septal defect (VSD) is a catastrophic complication of myocardial infarction. Surgical repair still has poor outcomes. This report describes clinical outcomes after a novel hybrid transcatheter/surgical repair in patients with apical VSD.MethodsSeven patients with postmyocardial infarction apical VSD underwent hybrid transcatheter repair via subxiphoid surgical access. A transcatheter occluder (Amplatzer Septal Occluder) with a trailing premounted suture was deployed through the right ventricular wall and through the ventricular septum into the left ventricular apex. The trailing suture was used to connect an anchor external to the right ventricular wall. Tension on the suture then collapses the right ventricular free wall against the septum and left ventricular occluder, thereby obliterating the VSD. Outcomes were compared with 9 patients who underwent surgical repair using either patch or primary suture closure.ResultsAll patients had significant left-to-right shunt (Qp:Qs 2.5:1; interquartile range [IQR, 2.1-2.6] hybrid repair versus 2.0:1 [IQR, 2.0-2.5] surgical repair), and elevated right ventricular systolic pressure (62 [IQR, 46-71] versus 49 [IQR, 43-54] mm Hg, respectively). All had severely depressed stroke volume index (22 versus 21 mL/m2) with ≈45% in each group requiring mechanical support preprocedurally. The procedure was done 15 (IQR, 10-50) versus 24 (IQR, 10-134) days postmyocardial infarction, respectively. Both groups of patients underwent repair with technical success and without intraprocedural death. One patient in the hybrid group and 4 in the surgical group developed multiorgan failure. The hybrid group had a higher survival at discharge (86% versus 56%) and at 30 days (71% versus 56%), but similar at 1 year (57% versus 56%). During follow-up, 1 patient in each group required reintervention for residual VSD (hybrid: 9 months versus surgical: 5 days).ConclusionsEarly intervention with a hybrid transcatheter/surgical repair may be a viable alternative to traditional surgery for postinfarction apical VSD.
Project description:BackgroundsThe traditional treatment of doubly committed subarterial ventricular septal defect (dcVSD) is open-heart surgery. This study aimed to evaluate the feasibility, safety, and outcome of transcatheter closure of small dcVSD using Amplatzer duct occluder-II (ADO-II) in children.MethodsBetween January 2016 and April 2021, 24 children (17 male and 7 female patients) with small dcVSD who received transfemoral closure with ADO-II were enrolled retrospectively. All of their available clinical and follow-up data were evaluated.ResultsThe patients' median age was 3.2 years (1.6-12.6 years, 4.2 ± 3.1 years) and body weight was 13.3 kg (10.0-38.5 kg, 16.5 ± 7.7 kg). Left ventricular angiography showed that the median dcVSD size was 2.0 mm (1.5-3.5 mm, 2.1 ± 0.6 mm). The device was successfully implanted in 23 patients (95.8%), and one patient failed to be closed because of the underestimation of defect size due to preoperative aortic valve prolapse, with 16 patients by the antegrade approach and eight patients by retrograde approach. The diameters of the device used were 3/4, 4/4, and 5/4 mm. The median operative time was 40.0 min (20.0-75.0 min, 41.7 ± 13.7 min), and the median fluoroscopic time was 5.0 min (3.0-25.0 min, 6.8 ± 5.0 min). With a follow-up duration of 1+ to 45+ months, only 1 patient presented with new-onset mild aortic regurgitation (AR).ConclusionTransfemoral closure of small dcVSD with ADO-II is technically feasible and safe in the selected children. However, the development or worsening of AR requires long-term follow-up.
Project description:A 78-year-old woman was brought to our hospital for chest pain with shock status. An electrocardiogram showed ST elevation in the precordial leads. Echocardiography showed an anteroseptal wall motion abnormality with left-to-right shunt at the apex. Emergency coronary angiography revealed occlusion in the mid portion of the left anterior descending artery, and left ventriculography showed ventricular septal rupture (VSR). Despite successful emergency surgical VSR repair, the VSR recurred 10 days after surgery, and the patient required intra-aortic balloon pumping and mechanical ventilation. Although reoperation for VSR closure was attempted 33 days after admission, open heart surgery was not completed due to severe tissue adhesions from the prior cardiac surgery. The patient ultimately underwent transcatheter closure for VSR using an Amplatzer duct occluder 56 days after hospital admission, and her hemodynamics markedly improved. She was transferred to a regional hospital for rehabilitation without oxygen therapy or intravenous treatments 81 days after the percutaneous intervention. In conclusion, percutaneous device closure of post-infarction VSR may be an alternative treatment to surgical repair for inoperable cases. <Learning objective: Ventricular septal rupture (VSR) is a rare but frequently fatal complication of acute myocardial infarction and often requires early surgery. However, the recurrence rate of VSR after surgery is high, and reoperation is often difficult because of the critical nature of the patients' condition. The present case report highlights the effectiveness of percutaneous closure of VSR using Amplatzer devices for seriously ill patients with a high risk of reoperation.>.
Project description:Abstract Background Transcatheter closure of perimembranous ventricular septal defect (VSD) is a promising alternative to surgical closure but has been associated with conduction disorders. Vascular access via multiple large vessels is associated with procedure-related complications, undermining the benefit of percutaneous approaches. In this case, we present the first-in-man transcatheter closure of a perimembranous VSD with an Amplatzer Duct Occluder IΙ in an adult patient via a single transradial artery access. Case summary A 62-year-old female was admitted to the hospital due to gradually worsening fatigue and shortness of breath on exertion. Transoesophageal echocardiogram (TOE) revealed a VSD size of 4–6 mm and a left ventricular ampulla size of 12 mm. A percutaneous VSD closure with the Amplatzer Duct Occluder II was decided. The angiography and TOE showed successful device placement and excellent procedural results. The patient was discharged home the next day after the procedure. The patient did not report any post-procedural complications during the 8-month follow-up. Echocardiographic assessment showed a gradual decrease in left ventricular dimensions. Discussion Transcatheter closure of perimembranous VSD is a promising alternative to surgical closure, but it is not free of complications. Traditional VSD occluders rely on multivessel access and complex formation of arteriovenous loops. In this case, we report the feasibility of perimembranous VSD closure with an Amplatzer Duct Occluder IΙ via a single radial artery access in an adult patient. This approach is a much simpler technique with several potential advantages and should be considered in selected adult patients and in similar clinical scenarios.