[Microsurgery of the renal arteries]

The extracorporal microsurgery of renal artery branches has improved the therapeutic possibilities of complicated vascular abnormalities. Intrarenal stenoses can only be treated by this technique and excellent therapeutic conditions are rendered possible, if more than two artery branches have to be replaced. The technical results are satisfactory, if the quality of the renal parenchyma is considered, which has been abnormal in a number of cases at the moment of the surgical treatment. The results concerning the arterial hypertension and the renal function are remarkable, when considering the fact that most of the kidneys treated by this technique would have been removed some years ago.