Project description:BackgroundGore Cardioform Atrial Septal Defect Occluder (GCA) is composed of a platinum-filled nitinol wire frame covered with expanded polytetrafluoroethylene (ePTFE). This makes the device highly occlusive and resistant to residual shunts through the device, as well as conforming well to the surrounding anatomy. In defects with poor rims to hold a device for closure or where one of the 'rims' is the free wall of the left ventricle, such as in a post-infarct apical ventricular septal defect (VSD), successful closure with standard nitinol mesh devices can be unachievable.Case summaryWe present the occlusion of a post-myocardial infarction VSD with a GCA device in a critically ill patient at risk for closure failure and intravascular haemolysis with conventional nitinol mesh devices. The device conformed well to the anatomy even in the absence of an apical interventricular septum.DiscussionGCA can be used for intracardiac high-velocity shunts in selected cases where conventional devices are unsuitable due to haemolysis or poor tissue and poor rims. With growing experience using GCA for the closure of atrial septal defects, interventionists should consider the potential advantages of ePTFE material and apply them to other lesions where these could be beneficial for patients.
Project description:Ventricular septal rupture (VSR) is an uncommon but potentially fatal complication of acute myocardial infarction (AMI). The management of VSR is challenging, and its surgical correction is associated with the highest mortality among all cardiac surgery procedures. A 57-year-old man with a history of smoking presented with AMI with a large apical VSR in addition to a large secundum atrial septal defect (ASD). His left ventricular ejection fraction was 30%, and the right ventricle was moderately dilated with normal systolic function. Cardiac catheterization revealed that the left anterior descending artery was diffusely diseased with total mid occlusion, whereas other coronary arteries had non-obstructive disease. This unique combination resulted in distinctive presentation with paradoxically better outcomes. After stabilization, the patient's interventricular septum was reconstructed, and the ASD was closed with a pericardial patch. The post-operative period was uneventful, and the patient was discharged 1 week after surgery. A follow-up echocardiography revealed no residual shunt. Post-myocardial infarction VSR presents differently in patients with pre-existing right ventricular volume overload. In such cases, the absence of significant cardiogenic shock at presentation may result in better surgical outcomes.
Project description:BackgroundThe incidence of the post-infarct ventricular septal defect (VSD) is 0.17%. Surgical repair is the definitive treatment and percutaneous closure is an alternative in high-risk patients. We report a case of post-myocardial infarction inferior wall aneurysm associated with a large ventricular septal rupture, with a communication between the aneurysm and right ventricle. Successful percutaneous closure of both the aneurysm and the post-infarct (VSD) was performed using two Amplatzer septal occluder devices.Case summaryA 76-year-old man was referred to the clinic 2 weeks after an inferior wall myocardial infarction. A harsh, pansystolic murmur was appreciated on his left parasternal area and across the pericardium. An echocardiogram demonstrated a large, true aneurysm in the mid-cavity inferior wall. The inferior septum was ruptured and dissected, with a large, left-to-right shunt. The patient's coronary angiography revealed a multi-vessel disease. The patient was considered as high surgical risk and thus transcatheter closure of both the post-infarct VSD and inferior wall aneurysm was recommended. We crossed the VSD from the venous side. An Amplatzer septal occluder (18 mm) was deployed to close the VSD completely. We crossed the aneurysm mouth from the arterial side. Another Amplatzer septal occluder (26 mm) was deployed with the large disc inside the aneurysm, sealing it with no more flow. After discharge from the intensive care unit, the patient underwent complete revascularization for his right coronary artery, left main artery, proximal left anterior descending artery, and ramus intermedius. At his 3-month follow-up, the patient remained well with reasonable exercise tolerance.DiscussionPercutaneous closure of a post-infarct VSD and aneurysm is an option for patients whose comorbidities preclude surgical repair and whose septal anatomy is favourable to device placement.
Project description:BackgroundVentricular septal defects (VSDs) are one of the mechanical complications of acute myocardial infarction (AMI). Because of the high risks of mortality and postoperative complications, a new alternative method is needed. With the development of interventional medicine, transcatheter closure has been increasingly performed for postmyocardial infarction ventricular septal defects (PMIVSDs). The aim of this study is to explore the feasibility and safety of transcatheter closure of PMIVSDs by meta-analysis.MethodsThe included studies were mainly single-arm studies of transcatheter closure of PMIVSDs. We compared VSD size, device size, preoperative risk factors and interventions among PMIVSD patients. We analysed the transcatheter closure success rate, the 30-day mortality rate, and the incidence of residual shunts.ResultsA total of 12 single-arm articles (284 patients) were included. The combined incidences of preoperative hypertension, hyperlipidaemia, and diabetes were 66% [95% CI 0.56-0.75], 54% [95% CI 0.40-0.68], and 33% [95% CI] 0.21-0.46], respectively. Multiple studies reported the combined incidences of preoperative PCI, IABP, and CABG, which were 46% [95% CI 0.15-0.80], 60% [95% CI 0.44-0.75], and 8% [95% CI 0.02-0.18]. Eleven studies reported the number of successful closures and the 30-day mortality rate; the success rate was 90% [95% CI 0.86-0.94], and the 30-day mortality rate reached 27% [95% CI 0.86-0.94].ConclusionFor patients with PMIVSD, transcatheter closure in the acute phase can be used as a rescue measure, while in the chronic phase, it is more effective and has a lower mortality rate, but the effect of selection bias should be considered. Residual shunts are a long-term complication that have a high incidence and long-lasting effects on patients. More large, multicentre, randomized controlled trials are needed in the future to confirm the safety and reliability of transcatheter closure of PMIVSDs.
Project description:Penetrating chest trauma can cause a wide variety of cardiac injuries, including myocardial contusion, damage to the interventricular septum, laceration of the coronary arteries, and free-wall rupture. Herein, we describe the case of a 21-year-old man who presented with congestive heart failure, which was secondary to an old myocardial infarction and complicated by the delayed formation of a ventricular septal defect. All of these conditions were attributable to multiple gunshot wounds that the patient had sustained 6 months earlier. Left ventricular angiography showed an apical aneurysm; a large, muscular, ventricular septal defect; and 19 gunshot pellets in the chest wall. Three months after aneurysmectomy and surgical closure of the septal defect, the patient had recovered fully and was asymptomatic.This case reaffirms the fact that substantial cardiac injuries can appear months after chest trauma. The possibility of traumatic ventricular septal defect should be considered in all multiple-trauma patients who develop a new heart murmur, even when overt chest-wall injury is absent.