Cardiac autotransplantation for malignant or complex primary left-heart tumors

Shanda H Blackmon, Ashish R Patel, Brian A Bruckner, Erik A Beyer, David C Rice, Ara A Vaporciyan, Zbigniew Wojciechowski, Arlene M Correa, Michael J Reardon
Texas Heart Institute Journal 2008, 35 (3): 296-300
Malignant or complex benign tumors of the left heart can present a formidable challenge for complete resection, due to anatomic inaccessibility. Cardiac autotransplantation (cardiac explantation, ex-vivo tumor resection, reconstruction, and reimplantation) was introduced for complex benign primary left-heart cardiac tumors by Cooley and for malignant left-heart tumors by Reardon. Herein, we update our previously reported experience.From April 1998 through July 2008, 20 patients underwent 21 cardiac autotransplantations for complex left-sided cardiac tumors that were nonresectable by traditional means. Demographics, tumor histology, operative data, and mortality rates were analyzed. Follow-up was complete in all patients.Of the 20 patients, 17 had malignant lesions, and 3 had benign disease. Two patients had left ventricular lesions and the rest had left atrial lesions. Histology showed 7 malignant fibrous histiocytomas, 5 undifferentiated sarcomas, 3 leiomyosarcomas, 1 malignant osteosarcoma, 1 myxoid sarcoma, 2 paragangliomas, and 1 myxoma. Fourteen patients had previous resection of their cardiac tumors, and 1 patient had repeat autotransplantation for recurrent disease. There were no operative deaths in patients undergoing autotransplantation alone (0/15), and 3 operative deaths in patients undergoing combined cardiac autotransplantation and pneumonectomy (3/6, 50%). All 3 patients with benign disease survived surgery and are alive without recurrent disease. Local recurrence occurred in 3/18 patients with malignant disease: 1 underwent successful repeat autotransplantation and 2 are receiving chemotherapy. The mean survival for all patients with sarcoma is 22 months.Cardiac autotransplantation enables complete resection and accurate reconstruction in many primary malignant and complex benign left-heart tumors.

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