Mechanical complications after myocardial infarction (MI) have become uncommon since the introduction of primary angioplasty. They can lead to a rapid clinical deterioration and a fatal outcome, with patient’s survival being dependent on their prompt recognition and intervention. We describe a case of two rare mechanical complications: a partial papillary muscle rupture after MI, followed by an early severe obstructive thrombosis of the implanted bioprosthetic valve.
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Partial Papillary Muscle Rupture after Myocardial Infarction and
Early Severe Obstructive Bioprosthetic Valve Thrombosis: an Unusual
Combination
SilveiraI, OliveiraM, GomesC, CabralS, LuzA, TorresS. Partial Papillary Muscle Rupture after Myocardial Infarction and
Early Severe Obstructive Bioprosthetic Valve Thrombosis: an Unusual
Combination. Arq. Bras.
Cardiol. 2018;111(3):430-3.
Silveira,Inês; Oliveira,Marta; Gomes,Catarina; Cabral,Sofia; Luz,André; Torres,Severo. Partial Papillary Muscle Rupture after Myocardial Infarction and
Early Severe Obstructive Bioprosthetic Valve Thrombosis: an Unusual
Combination. Arq. Bras.
Cardiol., v. 111, n. 3, p. 430-433, Sep. 2018.
Silveira,I., Oliveira,M., Gomes,C., Cabral,S., Luz,A., & Torres,S. (2018). Partial Papillary Muscle Rupture after Myocardial Infarction and
Early Severe Obstructive Bioprosthetic Valve Thrombosis: an Unusual
Combination. Arq. Bras.
Cardiol.,111(3), 430-433.
Silveira,Inês and Oliveira,Marta and Gomes,Catarina and Cabral,Sofia and Luz,André and Torres,Severo. Partial Papillary Muscle Rupture after Myocardial Infarction and
Early Severe Obstructive Bioprosthetic Valve Thrombosis: an Unusual
Combination. Arq. Bras.
Cardiol. [online]. 2018, vol. 111, n. 3, [cited 2025-10-24], pp.430-433. Available from: <https://abccardiol.org/en/article/partial-papillary-muscle-rupture-after-myocardial-infarction-andearly-severe-obstructive-bioprosthetic-valve-thrombosis-an-unusualcombination/>. ISSN 0066-782X.
Figure 1
Transoesophageal echocardiogram two-chamber view showing a 9 mm
disruption of the posteromedial papillary muscle (pointed with an
arrow) consistent with a contained, but morphologically imminent
rupture, leading to a broad posterior leaflet prolapse and a severe
mitral regurgitation with an eccentric jet. LA: Left Atria; LV: Left
Ventricle.