EVALUATION OF MORPHOLOGY AND AREA OF MITRAL VALVE USING THREE-DIMENSIONAL TRANSESOPHAGEAL ECHOCARDIOGRAPHY IN PATIENTS WITH MITRAL VALVE STENOSIS UNDERGOING PERCUTANEOUS MITRAL BALLOON VALVULOPLASTY

Thị Thu Hoài Nguyễn1,2,, Thị Hồng Mến Hoàng3
1 Bach Mai hospital
2 VNU Hanoi-University of Medicine and Pharmacy
3 Hanoi medical university

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Abstract

Background: Three dimensional transthoracic and transesophageal echocardiography (3D TEE) has confirmed its role in assessing heart valve disease. Some studies in the world showed that 3DTEE  is more valuable than 2-dimensional transthoracic  echocardiography (2D TTE) in the asessment of mitral valve area  and morphology. Curruently in Vietnam there has been  no research on this issue. Aims:  Examination of morphology and area of mitral valve on  2DTTE, 2DTEE and 3DTEE in patients with mitral valve stenosis undergoing percutaneous mitral balloon valvuloplasty. Material and methods: 60 patients with mitral valve stenosis undergoing percutaneous mitral balloon valvuloplasty (PTMV). All patients underwent 2D TTE, 2DTEE,  3DTEE before PTMV for the asessment of mitral valve area (MVA), valve morphology and mitral regurgitation. Results: MVA asseesed by 3DTEE were significantly lower asseesed by 2DTEE (0,88±0,22 cm2 vs 1,01±0,19cm2), mean difference -0,16±0,22, p<0,001. MVA asseesed by 3DTEE were significantly lower asseesed by PHT (0,88±0,22 cm2 vs 1,03±0,2cm2) mean difference 0,23±0,21, p<0,001. The 3DTEE detected better calcification than 2DTTE. There was no difference in differential pressure through mitral valve, pulmonary artery pressure between 2DTEE and 2DTTE. Conclusion: MVA asseesed by 3DTEE smaller than MVA asseesed by 2DTTE and PHT. The 3DTEE detected better calcification than 2DTTE.

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References

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