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A Rare Case of Mitral Prosthesis Dislocation Due to a Circumferential Left Atrial Dissection.

ABSTRACT: Left atrial dissection is a rare entity mostly associated with mitral valve surgery and revealed in early post-operative period. This case report discusses a case of left atrial dissection associated with dislocation of the mechanical mitral prosthesis in the left atrium, which was peculiar in its anatomy and pathophysiology, occurred 12 years after surgery. (Level of Difficulty: Advanced.).

SUBMITTER: De Michele L

PROVIDER: S-EPMC8302772 | biostudies-literature |

REPOSITORIES: biostudies-literature

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A case of left atrial dissection after mitral valve replacement.

Project description:Left atrial dissection (LatD) is a rare complication of cardiac surgery due to creation of a false chamber through a tear in the mitral valve annulus that extends into the left atrium wall. It is primarily associated with mitral valve surgery although other etiologies have also been defined. Perioperative transesophageal echocardiography (TEE) is a key to the diagnosis. This is a case report of management of LatD after mitral valve replacement.

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Left atrial endocarditis as a rare complication of mitral valve endocarditis: a clinical case.

Project description:BACKGROUND: Infective Endocarditis (IE) is considered as a multifaceted problem in every aspect from etiology and presentation to diagnosis and management. Early recognition of this disease and especially its complications, remain a critical task for the cardiologist. Atrial endocarditis is a rare and sometimes unrecognized complication of mitral valve endocarditis. CASE PRESENTATION: We present a 48 year-old male patient who was admitted to our clinic because of recent onset of malaise, fever, jaundice and peripheral edema. Important physical findings were peripheral stigmata of IE in addition to holosystolic murmur over the left sternal border. Transthoracic and transesophageal echocardiophy revealed a severe eccentric MR due to a flailed posterior mitral valve caused by IE. The presence of atrial septal endocarditis caused by jet streaming was also observed. Blood culture was positive for streptococcus oralis and antibiotic therapy was immediately initiated. Considering the large burden of infective tissue, the patient was planned for an early surgical intervention. A minimally invasive resection of the atrial mass, direct closure of the defect, resection of the diseased portions of mitral leaflets and implantation of a biological mitral valve prosthesis was performed. Intra-operative and histological findings confirmed provisional diagnosis by echocardiography. CONCLUSIONS: Together with comprehensive echocardiographic evaluation, attention should be placed on mural vegetations and excluded among all cases of mitral valve endocarditis, particularly those with severe eccentric regurgitant jets.

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Intimal Sarcoma: An Extremely Rare Case of a Left Atrial Tumor with Partial Obstruction of the Mitral Orifice.

Project description: Not available

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Left atrial wall dissection: a rare sequela of native-valve endocarditis.

Project description:Left atrial wall dissection is a rare condition; most cases are iatrogenic after mitral valve surgery. A few have been reported as sequelae of blunt chest trauma, acute myocardial infarction, and invasive cardiac procedures. On occasion, infective endocarditis causes left atrial wall dissection. We report a highly unusual case in which a 41-year-old man presented with native mitral valve infective endocarditis that had caused left atrial free-wall dissection. Although our patient died within an hour of presentation, we obtained what we consider to be a definitive diagnosis of a rare sequela, documented by transthoracic and transesophageal echocardiography.

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An Extremely Rare Cause of Mitral Regurgitation—Accessory Commissural Mitral Tissue with Anomalous Left Atrial Chordal Attachment.

Project description:Highlights•Accessory mitral tissue and left atrial chordae are rare congenital abnormalities.•Accessory mitral tissue can result in left ventricular outflow tract and mitral valve obstruction.•This is the first case of lateral mitral accessory tissue with an associate anomalous chord.•Transthoracic echocardiography may not be able to evaluate accessory mitral valve tissue.•Removal of anomalous chordae affecting the mitral valve may be complicated.

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Conservative treatment of a left atrial intramural hematoma after left atrial thrombus resection and concomitant mitral valve replacement--case report.

Project description:Left atrial intramural hematoma is a seldom cause of left atrial mass. It has been described to occur spontaneously, after interventional procedures, after blunt chest trauma, or after aortocoronary bypass surgery. We present a case of mitral valve replacement together with the removal of a large intraatrial space-occupying lesion. Intraoperative transesophageal echocardiography confirmed a successful resection of this mass. Surprisingly, upon admission to ICU, transesophageal and transthoracic echocardiography revealed a recurrence of an intramural lesion, closest matching a hematoma, which was confirmed by contrast-enhanced computed tomography. Surgical intervention was thoroughly discussed but a conservative management was favoured. 3 months after surgery, a reassessed transthoracic echocardiography and computed tomography demonstrated an almost complete resolution of the pre-existing hematoma.

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Mitral Annular Kinetics, Left Atrial, and Left Ventricular Diastolic Function Post Mitral Valve Repair in Degenerative Mitral Regurgitation.

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Left Atrial Myxomectomy with Intraoperative Severe Mitral Regurgitation and Complicated Postoperative Course - Case Report.

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Transseptal mitral valve-in-valve replacement of intra-atrial mitral prosthesis in a patient with severe mitral annular calcification.

Project description: Not available

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Congenital left atrial appendage aneurysm: A rare case report and literature review.

Project description:Left atrial appendage aneurysms (LAAA) are rare. Patients with LAAA are often diagnosed incidentally or after cardiac tachyarrhythmia or systemic thromboembolism happen. Early diagnosis and surgical resection is of utmost importance to prevent hazardous adverse events.We present a case of 46-year-old man with congenital LAAA. The individual in this manuscript has given written informed consent to publish these case details.Imaging studies, such as echocardiography, cardiovascular computed tomography (CT) and magnetic resonance imaging (MRI), demonstrated the large cavity arising from the left atrial appendage. The diagnosis of LAAA was confirmed.The patient underwent an aneurysmectomy without any complications.TTE confirmed the disappearance of the LAAA from the left parasternal short-axis view of the aortic root postoperatively. The patient remained asymptomatic without any adverse events at his 3-month follow-up visits.The associated high risk of life-threatening complications and the relative ease of surgical removal suggest that prompt evaluation should be considered in patients with lesions adjacent to the left heart border.

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