Percutaneous Mitral Balloon Commissurotomy in an African Patient With Left-Sided Inferior Vena Cava: A Rare Case Report.

This case report describes a rare clinical scenario involving a 40-year-old Ethiopian female patient with very severe rheumatic mitral stenosis, found to have an anomalous transposition of the inferior vena cava (IVC). She successfully underwent a technically challenging percutaneous mitral balloon commissurotomy. To the best of our knowledge, this is the first documented case in an African patient where such a procedure has been successfully performed in the context of a congenital IVC anomaly.