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Introduction: Left Ventricular Pseudoaneurysm (LVP) is defined as cardiac wall rupture leading to a formation of wall with thrombus, pericardial, or scar tissue functioning as a pouch for blood. A loculated pericardial effusion (LPE), and right ventricular pericardial fistula (RVPF) have never been reported in literature. Here, we report the first case of a 70 year old male who developed a LVP, LPE, and RVPF. Case Description: A 70 year old male with a past medical history of hypertension presented with inferior wall STEMI. Cardiac catheterization demonstrated left anterior descending (LAD) with 80% occlusion and right coronary artery (RCA) with 100% occlusion. Percutaneous intervention of RCA with aspiration thrombectomy and two drug eluting stents was performed. Echocardiogram the following day demonstrated a LVP. A transesophageal echocardiogram (TEE) demonstrated LVP near the mid-inferior interventricular septum draining into the pericardial space, and LPE from the apical inferior left ventricle (LV) extending to the apical cap of the right ventricle (RV). Computed tomography angiography (CTA) demonstrated a multiloculated collection at the inferior septal aspect of LV contained by the pericardial space. Patient was a high risk for surgery. LVP was closed via a 24 mm atrial septal defect (ASD) occluder device. Intraoperative TEE demonstrated an ASD occluder device at the mid inferior septum at the location of the LVP neck with minimal residual flow into the LPE and a fistula connecting the LPE space with RV. RVFP was managed conservatively. LAD was managed medically. Patient was discharged home safely on guideline directed medical therapy. Discussion: LVP rate is 0.0026% following myocardial injury. It is reported that untreated LVP have a rupture risk of about 30% and a mortality rate of 50%. Prompt treatment is required to prevent mortality. Surgical management is the standard of care. A multidisciplinary heart team deemed the patient a high risk. Therefore, transcatheter treatment was sought in the patient above. Conclusions: Surgical treatment is standard of care for LVP, but transcatheter wall closure with an ASD device is a promising technique not only for high-risk surgical candidates such as above, but as a gold standard of treatment for LVP.

Introduction: Left Atrial Septal pouch (LASP) is defined as an incomplete closure between the septum primum and septum secundum with an elongated septum secundum. This produces a crevice in the left atrium that functions as a source for static blood and atrial dissociation. This in turn could progress to the formation of thrombi within the left atrium that has the potential to embolize causing ischemic infarcts. Case Description: Here we present a 63 year old Hispanic female with a past medical history of paroxysmal atrial fibrillation on apixaban, recurrent strokes, dyslipidemia, and hypertension who presented with expressive aphasia, and prosopagnosia. Previously, the patient was reported of having two cardioembolic cerebral vascular accidents (CVA). Computed tomography of the brain demonstrated an old infarct of the left posterior parietal lobe. Patient was treated with intra-arterial tissue plasminogen activator of the left posterior cerebral artery and right middle cerebral artery. MRI demonstrated four acute punctate infarcts in the left frontal lobe consistent with embolic infarcts. TEE demonstrated a large patent foramen ovale (PFO), a prominent eustachian valve, and LASP. It was determined that her PFO and LASP were the culprit for her recurrent CVA despite appropriate AC. The PFO/LASP were successfully closed with an Amplatzer PFO occluder device. Patient was discharged home. Discussion: The LASP can function as a source of thrombus formation and atrial disassociation, which can cause embolic CVA. No guidelines exist on how to properly address a LASP. One option would be to use a PFO closure device to close LASP. Other options may include AC despite the absence of atrial fibrillation. Conclusions: In conclusion, further studies are necessary in order to establish the most appropriate management in patients with LASP.