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Papillary Muscle Rupture Complicating Acute Myocardial Infarction: A Tale of Teamwork.

ABSTRACT: A 52-year-old man presented with acute onset of chest pain and was found to have an inferolateral ST-segment elevation myocardial infarction and acute mitral regurgitation due to papillary muscle rupture. This case describes a rare, potentially fatal mechanical complication of acute myocardial infarction. (Level of Difficulty: Beginner.).

SUBMITTER: Labrada L

PROVIDER: S-EPMC8304571 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Papillary Muscle Rupture After Acute Inferior Myocardial Infarction.

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Acute papillary muscle rupture immediately after ST-segment elevation acute myocardial infarction: A case report.

Project description:A 73-year-old woman in cardiogenic shock was referred to our hospital because of papillary muscle rupture immediately after the onset of acute myocardial infarction (MI). She had undergone emergent percutaneous coronary intervention and mitral valve replacement. Serial creatine kinase and creatine kinase MB levels indicated that she had acute phase MI on arrival. Pathological findings showed coagulative necrosis of the papillary muscle, which was characteristic evidence of the consequence of prolonged ischemia. We describe herein an unusual case of complete rupture of the posterior papillary muscle occurring immediately after the development of MI. <Learning objective: Mechanical complications of acute myocardial infarction (AMI) such as left ventricular free wall rupture, interventricular wall rupture, and papillary muscle rupture (PMR) commonly occur 2 to 7 days after the onset of AMI. We describe a case of PMR immediately after AMI, which may cause a silent and severe ischemic event a few days before the onset of PMR. This is a rare case of PMR immediately after AMI.>.

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A rare complication of posterior myocardial infarction: Anterolateral papillary muscle rupture.

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Biventricular thrombi complicating acute myocardial infarction.

Project description:A rare case of biventricular thrombi complicating acute myocardial infarction detected during echocardiography is described.

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Clinical Characteristics and Contemporary Prognosis of Ventricular Septal Rupture Complicating Acute Myocardial Infarction: A Single-Center Experience.

Project description:Objectives: Ventricular septal rupture (VSR) is a rare but lethal complication of acute myocardial infarction (AMI). We conducted a retrospective analysis of the clinical characteristics of VSR patients and explored the risk factors for long-term mortality. Methods: In this single-center cohort study, 127 patients diagnosed with post-AMI VSR between May 2012 and April 2019 were included. Demographic, clinical, operative, and outcome data were collected. The 30-day and long-term mortality were outcomes of interest. Cox proportional hazard regression analysis was used to explore the predictors of long-term mortality. Results: The mean age of the VSR cohort was 66.6 ± 8.7 years, 67 (52.8%) were males. Among the 127 patients, 78 patients (61.4%) were medically managed, 31 (24.4%) patients underwent percutaneous transcatheter closure (TCC), and 18 (14.2%) patients received surgical repair. The median follow-up time was 1129 days [interquartile range: 802-2019 days]. The 30-day mortality of the medically managed group, percutaneous TCC group, and surgical management group was 93.6, 22.6, and 11.1%, respectively; and the long-term mortality was 96.2, 25.8, and 22.2%, respectively. VSR repair treatment including surgical management (HR 0.01, 95% CI 0.001-0.09, p < 0.001) and percutaneous TCC (HR 0.09, 95% CI 0.03-0.26, p < 0.001) was associated with a better prognosis, and cardiogenic shock (CS) (HR 9.30, 95% CI 3.38-25.62, p < 0.001) was an independent risk factor of long-term mortality. Conclusions: The prognosis of VSR patients without operative management remains poor, especially in those complicated with CS. Timely and improved surgery treatment is needed for better outcomes in VSR patients.

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Acute papillary muscle infarction and rupture in the puerperium complicating Libman-Sacks endocarditis in a patient with systemic lupus erythematosus and antiphospholipid syndrome: a case report.

Project description:BackgroundAcute heart failure caused by severe mitral regurgitation (MR) due to papillary muscle rupture has been described in the puerperium by case reports; however, the majority of cases of papillary muscle rupture are caused by myocardial infarction. We describe papillary muscle rupture occurring in the postpartum period in a patient with systemic lupus erythematosus (SLE), antiphospholipid syndrome (APLS), and chronic Libman-Sacks endocarditis and explore the multifactorial nature of the papillary muscle infarction and rupture in the setting of postpartum fluid shifts, chronic myocardial injury from Libman-Sacks, and high thrombotic risk.Case summaryA 29-year-old woman presented with acute heart failure 2 weeks' postpartum and was found to have acute MR due to a flail leaflet caused by papillary muscle rupture. She proceeded to emergency surgery with mitral valve (MV) replacement and the histology revealed evidence of chronic Libman-Sacks endocarditis and papillary muscle infarction with thrombi in the intramyocardial arteries.DiscussionThis is the second case report of papillary muscle rupture in the puerperium in a patient with SLE in the literature, the other case was caused by catastrophic APLS. However, in this case, the cause of the rupture is likely to be multifactorial; as a consequence of thrombosis in the microvasculature causing isolated papillary muscle ischaemia, and fibrosis of the muscle due to chronic Libman-Sacks endocarditis resulting in limited pliability which caused rupture of the papillary muscle when faced with the added stress of increased volume that occurs in the puerperium.

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Project description:Despite an improvement in pharmacological therapies and mechanical reperfusion, the outcome of patients with acute myocardial infarction (AMI) is still suboptimal, especially in patients with cardiogenic shock (CS). The incidence of CS accounts for 3-15% of AMI cases, with mortality rates of 40% to 50%. In contrast to a large number of trials conducted in patients with AMI without CS, there is limited evidence-based scientific knowledge in the CS setting. Therefore, recommendations and actual treatments are often based on registry data. Similarly, knowledge of the available options in terms of temporary mechanical circulatory support (MCS) devices is not equally widespread, leading to an underutilisation or even overutilisation in different regions/countries of these treatment options and nonuniformity in the management of CS. The aim of this article is to provide a critical overview of the available literature on the management of CS as a complication of AMI, summarising the most recent evidence on revascularisation strategies, pharmacological treatments and MCS use.

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Anterior Papillary Muscle Rupture due to Acute Myocardial Microinfarction of the Small High Lateral Branch.

Project description:Papillary muscle rupture is a catastrophic condition, of which most cases manifest posterior papillary muscle rupture. Anterior papillary muscle rupture is a rare condition. Particularly, anterior papillary muscle rupture due to acute myocardial microinfarction of the small high lateral branch is extremely rare. Since papillary muscle rupture can occur even in such a small branch or small area due to myocardial infarction, echocardiographic and/or ventriculographic confirmation is essential in cases of sudden worsening of heart failure. Herein, we report the case of anterior papillary muscle rupture with a good outcome. A 61-year-old man was admitted to our hospital with cardiogenic shock. Echocardiography revealed severe mitral regurgitation due to papillary muscle rupture. Coronary angiography demonstrated high-grade stenosis in the high lateral branch. However, no other significant stenoses were found. Emergency mitral valve replacement was performed. The patient was discharged 19 days after surgery without any complications.

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Diagnostic accuracy of a novel 'winking coronary angiographic sign' in patients presenting with ventricular septal rupture complicating acute myocardial infarction.

Project description:Ventricular septal rupture (VSR) is an uncommon but potentially lethal complication of acute myocardial infarction (MI). Its prompt recognition is essential to permit timely institution of corrective measures. The present study was undertaken to assess the diagnostic accuracy of a novel and unique angiographic sign, the 'winking coronary sign (WCS)', for recognizing post-MI VSR. The WCS is defined as partial transient occlusion of the infarct-related culprit artery overlying the site of VSR during ventricular systole with near normal filling in the diastole. A total of 56 patients with post-MI VSR (mean age 60.9 ± 9.9 years, 75% male) were compared with 73 age- and sex-matched acute MI patients without VSR. The extent of coronary artery disease was not different between the two groups, but higher number of patients in the VSR group had thrombolysis in MI grade 3 flow (57.1% vs 34.5%, P 0.01). The WCS was observed in 67.9% of the patients with VSR but in none of the patients without VSR (p < 0.0001), yielding a sensitivity of 67.9% and specificity of 100% for this sign for diagnosing underlying VSR. This demonstrates the potential utility of the WCS for diagnosing VSR in patients in whom the VSR has developed in the time frame between the echocardiography and angiography or has been missed during the initial clinical and/or echocardiographic evaluation.

| S-EPMC6310177 | biostudies-literature

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Project description:Ulcerative colitis (UC) is a chronic inflammatory disease that predominantly affects the gastrointestinal (GI) tract but can involve extraintestinal organs including musculoskeletal system and skin. The most frequent cardiac manifestations of UC are pericarditis and myocarditis. Patients display an increased risk for venous thromboembolic complications and mesenteric ischemia, but the association with ischemic heart disease and myocardial infarction is uncertain. We present the case of a 27-year-old man with anti-PRIII ANCA-positive ulcerative colitis and increased factor VIII activity who presented with an acute myocardial infarction. We discuss possible causative links between these clinical entities and demonstrate the role of cardiac magnetic resonance (CMR) in patients with underlying inflammatory conditions who present with chest pain and evidence of myocardial damage.

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