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...ir or Replacement]]''' - This surgery is done to repair or replace a heart valve that is not working correctly. * '''[[Aortic Surgery]]''' - This surgery is done to repair or replace a damaged section

...rder in which acid in the stomach comes up into the esophagus, because the valve separating the stomach and esophagus does not function properly ...monly a birth defect or caused by scarring and calcium accumulation in the valve from rheumatic fever