Echocardiography of the mitral valve in aortic valve disease.
نویسندگان
چکیده
Ultrasonic echocardiograms from the anterior cusp of the mitral valve have been obtained in 75 patients with aortic regurgitation in whom there was haemodynamic or surgical confirmation, or both, of the state of the mitral valve. Coincident mitral stenosis could be recognized from the echocardiogram in all cases by a slow diastolic closure rate and widening of the echo from the anterior mitral cusp. In many of these patients delayed systolic closure of the mitral valve was also seen. All patients with an Austin Flint murmur had either premature systolic closure of the valve and an accelerated diastolic closure rate or diastolic oscillations of the valve. The amplitude of excursion of the anterior mitral cusp was normal in patients with an Austin Flint murmur and reduced in patients with organic mitral stenosis. It is suggested that the Austin Flint murmur may have two origins. It may be associated with premature mitral valve closure when a short diastolic filling time and a high left atrial pressure are accompanied by turbulent blood flow through the mitral valve, a situation similar to that in mitral stenosis. In patients without heart failure the Austin Flint murmur seems to be associated with rapid diastolic oscillations of the anterior cusp which when present are a diagnostic feature on the echocardiogram of patients with lone aortic regurgitation and which are not seen when there is associated mitral stenosis. Echocardiograms of the mitral valve can therefore be used to differentiate organic from functional mitral diastolic murmurs in patients with aortic regurgitation. The method is very reliable. When heart failure complicates aortic regurgitation echocardiography displays its mechanism. Apart from associated mitral stenosis, aortic regurgitation of recent onset (or exacerbation) can readily be distinguishedfrom chronic aortic regurgitation with heartfailure. The latter is associated with delayed mitral valve opening and with premature closure which is slight and does not precede the P wave of the electrocardiogram. In acute aortic regurgitation the echocardiogram shows the singular combination of delayed diastolic opening together with gross prematurity of closure which often precedes the P wave. The resulting spectacular curtailment of the period when the mitral valve is open has precise diagnostic value. These features also are very reliable.
منابع مشابه
بررسی 290 کودک مبتلا به بیماری دریچهای قلبی روماتیسمی
Background & Aim: Acute rheumatic fever and its cardiac involvement is one of the most prevalent acquired pediatric heart diseases in developing countries needing long hospitalization, cardiac surgery, prophylaxis, and delicate management and causing death in some cases. A paucity of information about this disease in our country made us perform the present study in one of the largest pediat...
متن کاملSuccessful Use of Two Thrombolytic Drugs in Prosthetic Mitral and Aortic Valve Thrombosis
Introduction: Prosthetic valve thrombosis is a rare and severe complication of valve replacement, most often encountered with a mechanical prosthesis. The significant morbidity and mortality associated with this condition warrant rapid diagnostic evaluation. Although surgery is the first-line therapy in symptomatic obstructive mechanical valve thrombosis, thrombolytic therapy has been used as a...
متن کاملCorrelation Between Aortic Valve Sclerosis and Coronary Artery Disease: A Cross - Sectional Study
Introduction: Aortic valve sclerosisis considered as a manifestation of coronary atherosclerosis. Recent studies demonstrated an association between aortic valve sclerosis and obstructive coronary artery disease. The purpose of this study was to evaluatethe correlation betweenaortic valve sclerosis andobstructive coronary artery disease and the extent of coronary artery disease in patients ho...
متن کاملRight sided heart evaluation after successful mitral valve replacement.
Introduction: It is well-documented that right-sided heart dysfunction and significant tricuspid valve regurgitation (TVR) have adverse effects on patient outcomes after left-sided heart valve surgery. Therefore, the evaluation of right ventriclular (RV) function and TR severity in patients who had undergone mitral valve replacement (MVR), associated with/without concomitant su...
متن کاملINFECTIVE ENDOCARDITIS IN CHILDREN
A total of 14 cases of infective endocarditis (IE) in children aged 6 months to 10 years were seen from December 1987 to December 1992 at the pediatric unit of Ayatollah Taleghani Medical Center. The majority of patients (12 of 14) were between 5 and 10 years of age. Acyanotic congenital heart disease was known to preexist in 78.6% and rheumatic valvular heart disease in 21.4% of cases. Or...
متن کاملDouble Valve Replacement (Mitral and Aortic) for Rheumatic Heart Disease: A 20-year experience with 300 patients.
Introduction: Rheumatic heart disease still remains one of the leading causes of congestive heart failure and death owing to valvular pathologies, in developing countries. Valve replacement still remains the treatment of choice in such patients.The aim of this study wasto analyze the postoperative outcome of double valve replacement (Mitral and Aortic ) in patients of rheumatic heart disease. ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- British heart journal
دوره 33 2 شماره
صفحات -
تاریخ انتشار 1971