| Two Cases of Double-Orifice Mitral Valve Detected by Echocardiography |
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Kwan Cheol Oh, Yong Wook Kim, Ki Bok Kim |
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Department of Pediatrics, Kwangju Christian Hospital, Kwangju, Korea |
| 양판구성 승모판의 심초음파 소견(2례 보고) |
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오관철, 김용욱, 김기복 |
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광주기독병원 소아과 |
Correspondence:
Kwan Cheol Oh, Email: 1
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| Abstract |
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Double-orifice mitral valve is a rare congenital anomaly. Most cases of double-orifice mitral
valve are hemodynamically normal and remain symptomless, so that it is usually discovered
incidentally in autopsy or during surgical correction of a cardiovascular abnormality. Recently,
however, it is increasingly recognized as such, since the echocardiography has gained wide
acceptance as a non-invasive diagnostic tool by the M-mode, two-dimensional and color
Doppler echocardiogram. Two separate mitral valve apparatuses can be used on the M-mode
echocardiogram. In the two-dimensional echocardiography, the parasternal and subcostal
short-axis views can show two separate glass-like orifices in the left ventricle, and the
parasternal long-axis view as well as the apical four-chamber view can show the anomaly.
And the color Doppler echocardiogram can visualize two mosaic-pattern flows between the left
atrium and ventricle.
We present herewith two cases of double-orifice mitral valve, as diagnosed by means of
echocardiography. The first case was an isolated one with mitral stenosis, showing two
parachute mitral valves. The second was associated with perimembranous ventricular septal
defect, and showed the accessory mitral valve directly attached to the ventricular septum, with
the chordae crossing the ventricular outflow tract. |
| Key Words:
Double-orifice mitral valve, Parachute mitral valve, Echocardiography |
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