Double orifice mitral valve: Difference between revisions
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A fourth type of DOMV, duplicate mitral valve with two annuli and valves, each with its own set of leaflets, commissures, chordae, and papillary muscles have been described by some authors.<ref name="Wójcik-2005">{{Cite journal | last1 = Wójcik | first1 = A. | last2 = Klisiewicz | first2 = A. | last3 = Lusawa | first3 = T. | last4 = Hoffman | first4 = P. | title = [Double-orifice mitral valve -- case report]. | journal = Kardiol Pol | volume = 63 | issue = 6 | pages = 663-5 | month = Dec | year = 2005 | doi = | PMID = 16380874 }}</ref> | A fourth type of DOMV, duplicate mitral valve with two annuli and valves, each with its own set of leaflets, commissures, chordae, and papillary muscles have been described by some authors.<ref name="Wójcik-2005">{{Cite journal | last1 = Wójcik | first1 = A. | last2 = Klisiewicz | first2 = A. | last3 = Lusawa | first3 = T. | last4 = Hoffman | first4 = P. | title = [Double-orifice mitral valve -- case report]. | journal = Kardiol Pol | volume = 63 | issue = 6 | pages = 663-5 | month = Dec | year = 2005 | doi = | PMID = 16380874 }}</ref> | ||
==Pathophysiology== | |||
== References == | == References == | ||
Revision as of 03:39, 13 November 2013
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Vendhan Ramanujam M.B.B.S [2]
Synonyms and keywords: DOMV
Overview
A double orifice mitral valve (DOMV) is a rare congenital malformation characterized by two valve orifices with two separate subvalvular apparatus. It is mostly associated with atrioventricular septal defect, but may also be associated with other congenital heart defects such as left-sided obstructive lesions, ventricular septal defects or cyanotic lesions. Isolated DOMV have been rarely reported.
Classification
Based on the size and location of the two orifices, various classifications for DOMV have been proposed. Trowitz et al. described three different types of DOMV using the 2D echocardiographic findings[1]
| DOMV Type | Characteristics |
| Complete bridge type | Both orifices are visible from the leaflet edge, all the way through the valve ring. Both openings are circular (equal or unequal in size), papillary muscles usually are normal, with chordae surrounding each orifice inserting into one papillary muscle. |
| Incomplete bridge type | Connection is seen only at the leaflet edge, resulting in a double circle only at the leaflet level, with a normal appearance in the more basal views. |
| Hole type | Small accessory orifice situated at either the anterolateral or posteromedial commissure, visible only at the mid-leaflet level and disappearing on scanning toward the apex or base. |
A fourth type of DOMV, duplicate mitral valve with two annuli and valves, each with its own set of leaflets, commissures, chordae, and papillary muscles have been described by some authors.[2]
Pathophysiology
References
- ↑ Trowitzsch, E.; Bano-Rodrigo, A.; Burger, BM.; Colan, SD.; Sanders, SP. (1985). "Two-dimensional echocardiographic findings in double orifice mitral valve". J Am Coll Cardiol. 6 (2): 383–7. PMID 4019924. Unknown parameter
|month=ignored (help) - ↑ Wójcik, A.; Klisiewicz, A.; Lusawa, T.; Hoffman, P. (2005). "[Double-orifice mitral valve -- case report]". Kardiol Pol. 63 (6): 663–5. PMID 16380874. Unknown parameter
|month=ignored (help)