scholarly journals A Case of Anterolateral Papillary Muscle Rupture Caused by Isolated First Diagonal Branch Occlusion

2017 ◽  
Vol 20 (6) ◽  
pp. 263 ◽  
Author(s):  
Hiroshi Kodama ◽  
Shinya Takahashi ◽  
Keijiro Katayama ◽  
Taijiro Sueda
Keyword(s):  
Mitral Valve ◽  
Papillary Muscle ◽  
Mitral Valve Regurgitation ◽  
Valve Regurgitation ◽  
Mitral Leaflet ◽  
Papillary Muscle Rupture ◽  
Anterior Mitral Leaflet ◽  
Diagonal Branch ◽  
Muscle Rupture ◽  
Leaflet Prolapse

A 74-year-old man hospitalized due to acute myocardial infarction (AMI) of the first diagonal branch developed cardiogenic shock. Ultrasonography showed anterolateral papillary muscle rupture (PMR) which caused anterior mitral leaflet prolapse and severe mitral valve regurgitation, and he successfully underwent mitral valve replacement. Anterolateral PMR causing anterior mitral leaflet prolapse due to obstruction of the first diagonal branch is rare and should be considered in such an AMI case.

scholarly journals Mitral Valve Repair for Mitral Valve Regurgitation with Papillary Muscle Displacement and Posterior Leaflet Prolapse

2017 ◽  
Vol 07 (03) ◽  
pp. 39-45
Author(s):  
Masaho Okada ◽  
Hirotaka Watanuki ◽  
Kayo Sugiyama ◽  
Yasuhiro Futamura ◽  
Katsuhiko Matsuyama
Keyword(s):  
Mitral Valve ◽  
Mitral Valve Repair ◽  
Papillary Muscle ◽  
Mitral Valve Regurgitation ◽  
Posterior Leaflet ◽  
Valve Regurgitation ◽  
Valve Repair ◽  
Leaflet Prolapse

Pseudo-endocarditis secondary to ruptured posteromedial papillary muscle with anatomical variation: A Case Report

2020 ◽  
pp. 179
Author(s):  
Keyword(s):  
Myocardial Infarction ◽  
Mitral Valve ◽  
Papillary Muscle ◽  
Anatomical Variation ◽  
Low Grade ◽  
Papillary Muscle Rupture ◽  
Atypical Chest Pain ◽  
Anatomical Variant ◽  
Muscle Rupture ◽  
Mitral Valve Vegetation

Myocardial infarction is the leading cause of papillary muscle rupture. This complication occurs in up to 5% of cases post MI and although rare, it constitutes a cardiac emergency if left untreated. On this basis, a 59-year-old male presented with low-grade fever and atypical chest pain with raised inflammatory markers and troponin levels. He was treated for infective endocarditis after echocardiography revealed a mass on the mitral valve, which was presumed to be a mitral valve vegetation and so he completed a 6-weeks course of antibiotics followed by elective mitral valve replacement surgery. During surgery, it was discovered that there was no endocarditis. Instead an unusually small muscle head of one of the posteromedial papillary muscle groups had ruptured secondary to an inferior myocardial infarction. This ruptured muscle head was highly mobile and mimicked a mitral valve vegetation. The mitral valve was successfully repaired, and the right coronary artery grafted. He made a full recovery but developed new-onset atrial fibrillation for which he is awaiting elective cardioversion. One should have a high index of suspicion for diagnosing papillary muscle rupture as it may mimic valvular vegetation on echocardiography, especially if the papillary muscle involved is an anatomical variant.

Abstract 14887: Look Beyond the Coronaries: A Rare Cause of Acute Papillary Muscle Rupture

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Calvin M Kagan ◽  
Benjamin Kenigsberg ◽  
Gaby WEISSMAN ◽  
Mark Hofmeyer ◽  
Samer S Najjar ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Mitral Valve ◽  
Mitral Regurgitation ◽  
Papillary Muscle ◽  
Invasive Mechanical Ventilation ◽  
Lv Function ◽  
Papillary Muscle Rupture ◽  
St Segment Elevation ◽  
Coronary Syndrome ◽  
Muscle Rupture

A 63-year-old male with numerous cardiac risk factors presented with two hours of rapidly progressing chest pain and shortness of breath. Exam was notable for respiratory distress requiring non-invasive mechanical ventilation and a holosystolic apical murmur radiating to the axilla. He had an elevated troponin and an electrocardiogram with anteroseptal ST depressions. He was diagnosed with a non-ST segment elevation acute coronary syndrome and taken for cardiac catheterization. Surprisingly, no occlusive epicardial disease was discovered. Left ventriculogram revealed engorgement of the left atrium and pulmonary arteries suggestive of severe mitral regurgitation. The mechanism of mitral regurgitation was unclear until transesophageal echocardiography showed a ruptured posteromedial papillary muscle with flail mitral valve, a picture classically caused by myocardial infarction. Cardiac MRI demonstrated preserved LV function with minor inferior apical hypokinesis, nonspecific endocardial late gadolinium enhancement in the inferior segments, and a small LV thrombus. An embolic myocardial infarction targeting a small territory involving posteromedial papillary muscle was thought most probable. The patient then underwent an uneventful mitral valve replacement and recovery. However, he returned two months later with severe biventricular dysfunction and cardiogenic shock with peripheral eosinophilia. Myocardial biopsy confirmed the diagnosis of eosinophilic myocarditis. An exhaustive workup for the etiology of his eosinophilia proved unrevealing; he was consequently diagnosed with the idiopathic subtype. The case highlights a rare but important clinical entity that has a varied phenotype. Our patient presented atypically with an acute papillary muscle rupture that mimicked an acute myocardial infarction, ultimately delaying diagnosis. As evidenced by our case, clinical suspicion of myocarditis should be high in all patients presenting with typical anginal symptoms with mechanical or circulatory compromise in the absence of acute coronary occlusion.

Papillary Muscle Heads Focalization for Functional Mitral Valve Regurgitation

2020 ◽  
Vol 110 (1) ◽  
pp. e59-e61
Author(s):  
Masatoshi Hata ◽  
Buntaro Fujita ◽  
Kavous Hakim-Meibodi ◽  
Jan F. Gummert
Keyword(s):  
Mitral Valve ◽  
Papillary Muscle ◽  
Mitral Valve Regurgitation ◽  
Valve Regurgitation ◽  
Functional Mitral Valve Regurgitation

scholarly journals Papillary Muscle Rupture of the Mitral Valve Caused by Traffic Accident

2011 ◽  
Vol 40 (6) ◽  
pp. 326-329
Author(s):  
Hidehito Kuroki ◽  
Noriyuki Tabuchi ◽  
Tomoya Yoshizaki
Keyword(s):  
Mitral Valve ◽  
Papillary Muscle ◽  
Traffic Accident ◽  
Papillary Muscle Rupture ◽  
Muscle Rupture
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