Papillary muscle dysfunction

Papillary muscle dysfunction refers atrioventricular valve tendons are attached to the papillary muscles due to ischemia, necrosis, fibrosis or other reasons, caused systolic dysfunction caused mitral regurgitation and mitral regurgitation have. [Etiology and pathophysiology -- caused papillary muscle dysfunction has many causes, Burch classification of the causes papillary muscle ischemia. dilated left ventricle. non-ischemic papillary muscle atrophy. papillary muscles or tendons congenital anomalies. endocardial diseases (endocarditis, fibroelastosis). expansion or hypertrophic cardiomyopathy. papillary muscle contraction coordination damage. apillary muscle or tendon rupture. Papillary muscle dysfunction is more common in coronary heart disease, acute myocardial ischemia (angina, myocardial infarction) and chronic myocardial fibrosis can be caused. Papillary muscle, or acute ischemic necrosis, some papillary muscle contraction dysfunction; Heart aneurysm formation Systolic to have relative movement, the corresponding parts of the mitral valve papillary muscles will stretch to Mr chamber, papillary muscle rupture. so that leaves the mitral ventricular systolic lost traction force and turned back to the left atrium, all will have serious mitral regurgitation. and the occurrence of severe mitral regurgitation. -- A clinical performance, the mild symptoms can be asymptomatic, papillary muscle injury obviously, the greater flow back to have heart palpitations, shortness of breath, cough. Papillary muscle acute ischemic or RMCT copiously mitral regurgitation, often acute pulmonary edema and cardiogenic shock. 2, signs apical systolic murmur of the disease is the most important signs. Angina With the papillary muscle dysfunction, the apical systolic murmur loudness with angina attack changes. Acute papillary muscle rupture with the noise suddenly appeared in all the systolic and rough features, accompanied diastolic Benma legal or fourth heart sounds. Laboratories and other checks -- one, electrocardiogram ST-T can change, but no specificity, Before papillary muscle with the general involved in the anterior wall myocardial infarction, the ST-T changes were seen in the I, avl, v5. v6 such as lead. After the papillary muscles associated with more involvement in the wall, under the wall myocardial infarction, ST-T changes found in II, III, etc. electrocardogram lead. Two, two-dimensional echocardiography Echocardiography revealed mitral leaf thickness and flexibility for normal valve leaflets activities range of small, small valve, mitral and ventricular septal distance increases, could be unearthed any tendons rupture, Doppler ultrasound diagnostic apparatus can detect traffic back to the size. 3, X-ray examination often left atrium, left ventricle increased left ventricular angiography see a mitral regurgitation. [Diagnosis : acute papillary muscle dysfunction diagnosis : acute myocardial infarction or severe angina pectoris,ex appears above the level of systolic murmur conduction to the armpit. systolic murmur (and systolic and Kara Music) on the extent, nature variable and may have legal and S3 Benma fourth heart sounds. ?۠the use of iso-amyl nitrite, systolic murmur may decline; Squatting test can boost systolic murmur. left ventricular angiography most diagnostic value of echocardiography examination also helped. [1] treatment, the treatment causes medical treatment, such as coronary heart disease patients improved myocardial ischemia. mitigation measures angina to acute papillary muscle dysfunction recovery. Reflux severe heart failure can occur vasodilator. 2, surgical treatment of papillary muscle rupture or chronic papillary lesions serious tendon REQUEST mitral regurgitation significantly, should consider valve replacement or repair of mitral annular papillary muscle and repair, surgical mortality rates higher.