Cardiac surgery in a patient with multiple myeloma combined with renal amyloidosis.

We present a case of a 62-year-old woman who underwent mitral valve and aortic valve replacement owing to infective endocarditis. Previously, the patient had been diagnosed with renal amyloidosis and multiple myeloma. She underwent chemotherapy and autologous peripheral blood stem cell transplantation and has achieved nearly complete remission. The patient's postoperative course was almost uneventful, and she was discharged on the 22nd postoperative day. This is the first case report about cardiac surgery for the patient with multiple myeloma combined with renal amyloidosis.