Project description:Left ventricular outflow tract (LVOT) pseudoaneurysm is a rare condition with a wide range of causes and various clinical outcomes. The causes range from infections, trauma to the chest wall, and iatrogenic origins. We present a unique case of idiopathic LVOT pseudoaneurysm in a patient with no obvious clinical risk factors. (Level of Difficulty: Advanced.).

| S-EPMC9871057 | biostudies-literature

Sinus of Valsalva Pseudoaneurysm Complicating Infective Endocarditis Causing Right Ventricular Inflow Obstruction.

Project description:Sinus of Valsalva pseudoaneurysm (SVpA) is a rare cause of right ventricular inflow obstruction. We report such a case presented with atrial flutter and cardiogenic shock caused by tricuspid valve obstruction by a narrow-necked right SVpA complicating aortic valve infective endocarditis demonstrated on transesophageal echocardiography and cardiac computed tomography. Despite restoration of sinus rhythm, the patient ran a fatal course due to aneurysmal rupture. We show the value of transesophageal echocardiography in evaluating unstable patients with cardiogenic shock, and the need of urgent surgery in selected patients to avoid a dismal outcome.

| S-EPMC10328123 | biostudies-literature

Left ventricular pseudoaneurysm as a complication of prosthetic mitral valve infective endocarditis.

Project description:We report a case of infective endocarditis complicated with left ventricular pseudoaneurysm originating from the posterior annulus of the prosthetic mitral valve in a 56-year-old woman. Despite prolonged antibiotic treatment, transesophageal echocardiography (TEE) showed partial detachment of the prosthesis from the posterior mitral annulus. Three-dimensional rotational computed tomography clearly demonstrated a pseudoaneurysm toward the posterolateral portion of the mitral prosthetic valve, which was not evident by TEE. Valve replacement and repair of the pseudoaneurysm were performed 83 days after initiation of antibiotic therapy. Left ventricular pseudoaneurysm is a rare but serious complication of mitral prosthetic valve endocarditis. It requires prompt diagnosis and early surgical intervention. <Learning objective: We present a case of infective endocarditis (IE) complicated with left ventricular pseudoaneurysm originating from the prosthetic mitral valve. Repeated transesophageal echocardiography is recommended for all IE patients when perivalvular extension is suspected. Electrocardiography-gated three-dimensional-computed tomography is useful for detection and evaluation of pseudoaneurysm, especially in planning surgical procedures.>.

| S-EPMC6281488 | biostudies-literature

Composed aortic root replacement and left ventricular outflow tract reconstruction with translocated valve graft in a prosthesis infective endocarditis.

Project description: Not available

| S-EPMC7791289 | biostudies-literature

Resolution of thrombus in left ventricular outflow tract pseudoaneurysm mimicking periaortic abscess.

Project description:Prosthetic valve complications are not uncommon after valve replacement. In this paper we report a female patient who presented with aortic prosthetic valve endocarditis and echocardiographic appearance of periaortic abscess. After 6 weeks of antibiotic therapy, echocardiographic examination revealed resolution of abscess cavity and replacement with a clear blood-filled anechoic sac. Diagnosis was made by cardiac computed tomography, which showed a left ventricular outflow tract (LVOT) pseudoaneurysm rather than an abscess, located just below the sewing ring of the prosthetic aortic valve. We assumed that either resolution of thrombus in LVOT pseudoaneurysm following effective warfarin therapy or clearance of infective content in pseudoaneurysm after co-administered antibiotics gave rise to change in echocardiographic characteristics in the perivalvular area.

| S-EPMC6265153 | biostudies-literature

An unusual cause of acute coronary syndrome: Left ventricular outflow tract pseudoaneurysm.

Project description: Not available

| S-EPMC7585967 | biostudies-literature

Left Ventricular Outflow Tract Pseudoaneurysm Formation Following Three Aortic Valve Replacement Surgeries.

Project description:We present a case of a pseudoaneurysm arising from the left ventricular outflow tract/aortic root as a complication of aortic valve surgery. A 45-year-old Nigerian female presented to our institution's emergency department with chest discomfort. She had three bioprosthetic aortic valve replacements in the preceding year at an outside institution for aortic regurgitation and wanted a second opinion on remaining surgical options. The learning points relevant to this case are as follows: (1) Recognizing potential complications postmultiple valve surgeries, (2) screening patients for chronic infections and rheumatologic conditions that can contribute to failed valve surgeries.

| S-EPMC4738499 | biostudies-literature

Transcatheter Exclusion of a Large Pseudoaneurysm of a Systemic Right Ventricular Outflow Tract.

Project description:We describe a rare patient with a large pseudoaneurysm of the right ventricular outflow tract that had developed after placement of a right ventricle-pulmonary artery conduit. A 7-mm Amplatzer Septal Occluder device was used to exclude the pseudoaneurysm, allowing for safer subsequent surgical repair. (Level of Difficulty: Advanced.).

| S-EPMC8311159 | biostudies-literature

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