1/19. Malfunction of a Bjork-Shiley prosthetic heart valve in the mitral position producing an abnormal echocardiographic pattern.This report presents an echocardiographic study of a patient with fibrous ingrowth about the sewing ring and hinges of a Bjork-Shiley valve in the mitral position. The valve was obstructed and produced a distinct motion pattern. In addition to having a rounded diastolic motion, the disk excursion was decreased.- - - - - - - - - - ranking = 1keywords = motion (Clic here for more details about this article) |
2/19. The echocardiographic correlate of a systolic click appearing after open mitral commissurotomy.An echocardiographic correlate for a post-valvulotomy mid-systolic click is described. Simultaneous echocardiographic and phonocardiographic studies demonstrated that the click was temporally related to a sudden midsystolic posterior motion of part of the mitral valve apparatus. This temporal relationship suggests that the sudden change in position of portions of the mitral valve resulted in the loud midsystolic click. In our patient the sudden leaflet movement associated with the click was apparently a localized abnormality.- - - - - - - - - - ranking = 0.5keywords = motion (Clic here for more details about this article) |
3/19. Lutembacher's syndrome: recognition by echocardiography.The typical echocardiographic features of mitral stenosis in association with an enlarged right ventricle and abnormal septal motion are generally consistent with pulmonary hypertension and functional tricuspid regurgitation. In the absence of clinical and echocardiographic features of pulmonary hypertension, the combination of mitral stenosis and "volume overload" of the right ventricle should alert the clinician to the diagnosis of Lutembacher's syndrome. This report discusses a patient with these echocardiographic findings in whom the diagnosis of Lutembacher's syndrome was confirmed by cardiac catheterization.- - - - - - - - - - ranking = 0.5keywords = motion (Clic here for more details about this article) |
4/19. Atypical posterior leaflet motion in echocardiogram in mitral stenosis.The echocardiographic diagnosis of mitral stenosis is based on the finding of a decreased early diastolic slope of the anterior mitral leaflet. This finding is also seen in other conditions in which the rate of left ventricular filling is reduced by decreased compliance of the ventricular myocardium rather than by mitral valve obstruction. patients with "true" mitral stenosis have been differentiated from those with decreased ventricular compliance resulting in "false" mitral stenosis by the direction of movement of the posterior mitral valve leaflet. This report describes a patient with mitral stenosis proved at cardiac catheterization whose echocardiogram showed posterior motion of thickened posterior mitral leaflet during diastole, a finding previously considered to exclude organic mitral stenosis. This false negative echocardiographic finding in proved mitral stenosis has not previously been reported.- - - - - - - - - - ranking = 2.5keywords = motion (Clic here for more details about this article) |
5/19. Severe intermittent intraprosthetic regurgitation after mitral valve replacement with subvalvular preservation.Preservation of the subvalvular apparatus during mitral valve replacement preserves left ventricular function and improves long-term survival. Complications of subvalvular preservation include left ventricular outflow tract obstruction and prosthesis impingement. We report a case of severe intermittent intraprosthetic mitral regurgitation detected by transesophageal echocardiography after mitral valve replacement by a bileaflet mechanical prosthesis with subvalvular preservation. Intravalvular prosthetic valve regurgitation was caused by remnants of the subvalvular apparatus, which were shown at reoperation to interfere with prosthetic leaflet motion and which were excised. Postoperative transesophageal echocardiography showed neither abnormal mitral regurgitation nor residual mass. The use of intraoperative transesophageal echocardiography could enable the detection of this rare complication.- - - - - - - - - - ranking = 0.5keywords = motion (Clic here for more details about this article) |
6/19. Echocardiographic manifestation of "false" mitral stenosis that was.An unusual normal posterior direction of motion of the posterior mitral valve leaflet echo during diastole was detected in a patient whose clinical and hemodynamic data confirmed the presence of significant rheumatic mitral stenosis after other conditions causing echocardiographic pattern of "false" mitral stenosis were ruled out. The finding of normal direction of motion of the posterior mitral valve leaflet when associated with abnormal EF slope of the anterior mitral valve leaflet does not rule out the existence of significant mitral stenosis.- - - - - - - - - - ranking = 1keywords = motion (Clic here for more details about this article) |
7/19. diagnosis of prosthetic mitral valve malfunction with combined echo-phonocardiography.Fifty-three patients were studied with combined echo-phonocardiography or phonocardiography alone following prosthetic valve replacement. In sixteen of these patients, clinical deterioration developed, and all subsequently underwent cardiac catheterization and/or surgery. Two patients came to autopsy. Included in this group of sixteen patients were five with obstructed prosthesis, six with paravalvular regurgitation, and five with left ventricular dysfunction. Measurements were made of the time interval from the aortic valve closure sound to the peak opening of the mitral prosthesis determined echocardiographically or to the mitral prosthetic opening click (A2-MVO). Echocardiographic studies of left ventricular wall motion were also performed. The A2-MVO interval was significantly shortened (P less than 0.01) with prosthetic valve obstruction (.05 /- .02 sec) and paravalvular regurgitation (.05 /- .01 sec) compared with normally functioning prostheses (Starr-Edwards ball valves .10 /- .02 sec, Lillehei-Kaster tilting disc prostheses .09 /- .01 sec). Shortening of this interval was not specific for these conditions because it was sometimes shortened with left ventricular dysfunction. Echocardiographic studies of left ventricular wall motion were helpful in distinguishing among prosthetic valve obstruction, paravalvular regurgitation and left ventricular dysfunction. The combined echo-phonocardiographic technique was especially helpful in detecting malfunction of tilting disc prostheses, because the technique enables measurement of the A2-MVO interval in the absence of an audible opening click.- - - - - - - - - - ranking = 1keywords = motion (Clic here for more details about this article) |
8/19. Mitral stenosis due to fibrous tissue overgrowth after mitral valve repair.We report an extremely rare case of fibrous tissue overgrowth 3 years after mitral valve repair using a mitral annuloplasty ring in a 53-year-old woman who underwent mitral valve replacement for mitral stenosis. Whitish fibrous tissue had overgrown from the ring on the atrial side of the annulus, and had severely reduced the valvular area. However, the motion of the mitral leaflets was not restricted. Considering the presence of concomitant aortitis syndrome, it is strongly suggested that the overgrowth of fibrous tissue was promoted as a reaction to chronic inflammation.- - - - - - - - - - ranking = 0.5keywords = motion (Clic here for more details about this article) |
9/19. Thrombolysis for prosthetic valve malfunction: case report and review.A 40 year old female with severe mitral valve stenosis, underwent mitral valve replacement by single disc valve 4 years ago. She presented at this admission with a new onset of congestive heart failure. The prothrombin time was inadequate with international normalized ratio (INR) 1.43. Transthoracic echocardiography revealed high pressure gradient across the mitral valve. fluoroscopy demonstrated restrictive opening of single disc motion. Intravenous thrombolysis was given for presumptive diagnosis of prosthetic valve thrombosis. The patient gradually improved and did not have to undergo surgical correction.- - - - - - - - - - ranking = 0.5keywords = motion (Clic here for more details about this article) |
10/19. cor triatriatum: echocardiograhic findings.The echocardiographic findings in a patient with cor triatriatum are presented. The preoperative echocardiogram demonstrated an unusual structure behind the mitral valve that moved anteriorly during atrial systole. There was also echocardiographic evidence of abnormalities of mitral valve motion, right ventricular and left atrial enlargement, and pulmonary hypertension. Postoperatively, the unusual echo behind the mitral valve had disappeared and the mitral valve appeared more normal. Left atrial and right ventricular dimension had decreased and the pulmonary valve appeared more normal. Fine diastolic mitral valve fluttering, an abnormal echo behind the anterior mitral valve leaflet moving anteriorly with atrial systole, an abnormal pulmonary valve echogram suggesting pulmonary hypertension, and marked right ventricular and left atrial enlargement were the main echocardiographic findings in our patient.- - - - - - - - - - ranking = 0.5keywords = motion (Clic here for more details about this article) |
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