As part of the standard Batista procedure, a suture is placed across the mitral valve orifice to limit this leakage. The surgery may well be beneficial, however, in the absence of severe mitral regurgitation. I think it's important to note again that this is an experimental procedure whose success has not yet been proven in large clinical studies. These investigations are ongoing, and the results will likely be available in the near future. For the time being, maximal medical therapy and then cardiac transplantation remain the cornerstones of treatment for severe congestive heart failure due to dilated cardiomyopathy.
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