Percutaneous mitral valvuloplasty using the double balloon technique: immediate results and determinant factors of increasing mitral regurgitation.

Korean J Intern Med · 1991 · PMC4532119 · PMID 1807365

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an increasing trendno p-value reported

Although there was an increasing trend in total echoscore and EBDA as the severity of the MR increased, those were statistically not significant.

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